/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/pthread-ext/01b_inc.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 04:07:20,937 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 04:07:20,939 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 04:07:20,991 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 04:07:20,992 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 04:07:20,992 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 04:07:20,993 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 04:07:20,994 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 04:07:21,009 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 04:07:21,010 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 04:07:21,010 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 04:07:21,011 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 04:07:21,011 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 04:07:21,012 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 04:07:21,013 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 04:07:21,013 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 04:07:21,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 04:07:21,014 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 04:07:21,022 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 04:07:21,026 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 04:07:21,029 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 04:07:21,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 04:07:21,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 04:07:21,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 04:07:21,040 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 04:07:21,041 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 04:07:21,042 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 04:07:21,042 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 04:07:21,043 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 04:07:21,043 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 04:07:21,043 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 04:07:21,044 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 04:07:21,044 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 04:07:21,044 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 04:07:21,045 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 04:07:21,045 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 04:07:21,048 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 04:07:21,060 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 04:07:21,060 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 04:07:21,060 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 04:07:21,061 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 04:07:21,061 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 04:07:21,061 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 04:07:21,061 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 04:07:21,061 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 04:07:21,061 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 04:07:21,062 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 04:07:21,062 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 04:07:21,062 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 04:07:21,062 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 04:07:21,062 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 04:07:21,062 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 04:07:21,062 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 04:07:21,062 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 04:07:21,062 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 04:07:21,063 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 04:07:21,063 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 04:07:21,063 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 04:07:21,063 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 04:07:21,063 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 04:07:21,063 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 04:07:21,063 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 04:07:21,063 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 04:07:21,064 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 04:07:21,064 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 04:07:21,064 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 04:07:21,064 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 04:07:21,064 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 04:07:21,064 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 04:07:21,064 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 04:07:21,261 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 04:07:21,273 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 04:07:21,275 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 04:07:21,276 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 04:07:21,276 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 04:07:21,277 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-ext/01b_inc.i [2022-01-19 04:07:21,313 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed83b55fc/97cf875dd87142658425937f1669b829/FLAG7c71c31d2 [2022-01-19 04:07:21,669 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 04:07:21,669 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01b_inc.i [2022-01-19 04:07:21,679 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed83b55fc/97cf875dd87142658425937f1669b829/FLAG7c71c31d2 [2022-01-19 04:07:22,047 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed83b55fc/97cf875dd87142658425937f1669b829 [2022-01-19 04:07:22,049 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 04:07:22,051 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 04:07:22,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 04:07:22,054 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 04:07:22,056 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 04:07:22,057 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,058 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a67095 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22, skipping insertion in model container [2022-01-19 04:07:22,058 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,063 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 04:07:22,097 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 04:07:22,220 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-19 04:07:22,327 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01b_inc.i[31005,31018] [2022-01-19 04:07:22,337 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 04:07:22,342 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 04:07:22,353 WARN L610 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2022-01-19 04:07:22,373 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-ext/01b_inc.i[31005,31018] [2022-01-19 04:07:22,375 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 04:07:22,394 INFO L208 MainTranslator]: Completed translation [2022-01-19 04:07:22,395 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22 WrapperNode [2022-01-19 04:07:22,395 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 04:07:22,396 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 04:07:22,396 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 04:07:22,396 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 04:07:22,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,408 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,427 INFO L137 Inliner]: procedures = 173, calls = 20, calls flagged for inlining = 7, calls inlined = 8, statements flattened = 62 [2022-01-19 04:07:22,427 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 04:07:22,428 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 04:07:22,428 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 04:07:22,428 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 04:07:22,432 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 04:07:22,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 04:07:22,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 04:07:22,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 04:07:22,454 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (1/1) ... [2022-01-19 04:07:22,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 04:07:22,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 04:07:22,480 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 04:07:22,484 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 04:07:22,514 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2022-01-19 04:07:22,515 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2022-01-19 04:07:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 04:07:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 04:07:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 04:07:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 04:07:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 04:07:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 04:07:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 04:07:22,515 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 04:07:22,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 04:07:22,516 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 04:07:22,593 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 04:07:22,595 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 04:07:22,710 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 04:07:22,772 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 04:07:22,772 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-19 04:07:22,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 04:07:22 BoogieIcfgContainer [2022-01-19 04:07:22,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 04:07:22,780 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 04:07:22,780 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 04:07:22,782 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 04:07:22,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 04:07:22" (1/3) ... [2022-01-19 04:07:22,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3186e4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 04:07:22, skipping insertion in model container [2022-01-19 04:07:22,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 04:07:22" (2/3) ... [2022-01-19 04:07:22,784 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3186e4ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 04:07:22, skipping insertion in model container [2022-01-19 04:07:22,784 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 04:07:22" (3/3) ... [2022-01-19 04:07:22,785 INFO L111 eAbstractionObserver]: Analyzing ICFG 01b_inc.i [2022-01-19 04:07:22,789 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 04:07:22,789 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 04:07:22,789 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 04:07:22,832 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,832 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,832 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,832 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,833 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,833 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,833 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,833 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,833 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,833 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,833 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,833 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,834 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,834 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,834 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,834 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,835 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,836 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,837 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,838 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,838 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,838 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,838 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,839 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,839 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,841 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,841 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,841 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,841 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,841 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,842 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,842 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:22,842 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 04:07:22,892 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 04:07:22,897 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 04:07:22,897 INFO L340 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2022-01-19 04:07:22,906 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 44 transitions, 93 flow [2022-01-19 04:07:22,941 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2022-01-19 04:07:22,942 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 04:07:22,944 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 55 events. 3/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 27. Up to 4 conditions per place. [2022-01-19 04:07:22,945 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 44 transitions, 93 flow [2022-01-19 04:07:22,949 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 44 transitions, 93 flow [2022-01-19 04:07:22,968 INFO L129 PetriNetUnfolder]: 2/51 cut-off events. [2022-01-19 04:07:22,968 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 04:07:22,968 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:22,969 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] [2022-01-19 04:07:22,969 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:22,972 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:22,973 INFO L85 PathProgramCache]: Analyzing trace with hash 1538553645, now seen corresponding path program 1 times [2022-01-19 04:07:22,978 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:22,979 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2066943978] [2022-01-19 04:07:22,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:22,980 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:23,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:23,191 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 04:07:23,191 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:23,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2066943978] [2022-01-19 04:07:23,192 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2066943978] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:23,192 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:23,192 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:07:23,193 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47236205] [2022-01-19 04:07:23,193 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:23,199 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 04:07:23,199 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:23,215 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 04:07:23,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 04:07:23,218 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 30 out of 44 [2022-01-19 04:07:23,220 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 45 places, 44 transitions, 93 flow. Second operand has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,221 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:23,221 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 30 of 44 [2022-01-19 04:07:23,222 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:23,270 INFO L129 PetriNetUnfolder]: 0/37 cut-off events. [2022-01-19 04:07:23,270 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 04:07:23,271 INFO L84 FinitePrefix]: Finished finitePrefix Result has 52 conditions, 37 events. 0/37 cut-off events. For 1/1 co-relation queries the response was YES. Maximal size of possible extension queue 2. Compared 13 event pairs, 0 based on Foata normal form. 9/46 useless extension candidates. Maximal degree in co-relation 0. Up to 4 conditions per place. [2022-01-19 04:07:23,272 INFO L132 encePairwiseOnDemand]: 37/44 looper letters, 0 selfloop transitions, 0 changer transitions 33/33 dead transitions. [2022-01-19 04:07:23,272 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 33 transitions, 89 flow [2022-01-19 04:07:23,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 04:07:23,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 04:07:23,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 167 transitions. [2022-01-19 04:07:23,283 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.759090909090909 [2022-01-19 04:07:23,286 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 167 transitions. [2022-01-19 04:07:23,290 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 167 transitions. [2022-01-19 04:07:23,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:23,293 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 167 transitions. [2022-01-19 04:07:23,298 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 33.4) internal successors, (167), 5 states have internal predecessors, (167), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,301 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,302 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,303 INFO L186 Difference]: Start difference. First operand has 45 places, 44 transitions, 93 flow. Second operand 5 states and 167 transitions. [2022-01-19 04:07:23,304 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 33 transitions, 89 flow [2022-01-19 04:07:23,305 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 40 places, 33 transitions, 89 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 04:07:23,306 INFO L242 Difference]: Finished difference. Result has 40 places, 0 transitions, 0 flow [2022-01-19 04:07:23,307 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=44, PETRI_DIFFERENCE_MINUEND_FLOW=71, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=33, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=33, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=0, PETRI_PLACES=40, PETRI_TRANSITIONS=0} [2022-01-19 04:07:23,311 INFO L334 CegarLoopForPetriNet]: 45 programPoint places, -5 predicate places. [2022-01-19 04:07:23,312 INFO L470 AbstractCegarLoop]: Abstraction has has 40 places, 0 transitions, 0 flow [2022-01-19 04:07:23,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.8) internal successors, (159), 5 states have internal predecessors, (159), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,314 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2022-01-19 04:07:23,315 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 2 remaining) [2022-01-19 04:07:23,315 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 04:07:23,318 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 04:07:23,319 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE (1/2) [2022-01-19 04:07:23,331 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 04:07:23,332 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 04:07:23,332 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 04:07:23,334 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 45 places, 44 transitions, 93 flow [2022-01-19 04:07:23,345 INFO L129 PetriNetUnfolder]: 3/55 cut-off events. [2022-01-19 04:07:23,345 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 04:07:23,346 INFO L84 FinitePrefix]: Finished finitePrefix Result has 60 conditions, 55 events. 3/55 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 83 event pairs, 0 based on Foata normal form. 0/49 useless extension candidates. Maximal degree in co-relation 27. Up to 4 conditions per place. [2022-01-19 04:07:23,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 45 places, 44 transitions, 93 flow [2022-01-19 04:07:23,348 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 45 places, 44 transitions, 93 flow [2022-01-19 04:07:23,354 INFO L129 PetriNetUnfolder]: 2/47 cut-off events. [2022-01-19 04:07:23,354 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 04:07:23,354 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:23,355 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:23,355 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 04:07:23,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:23,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1465134151, now seen corresponding path program 1 times [2022-01-19 04:07:23,356 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:23,356 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [389158679] [2022-01-19 04:07:23,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:23,356 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:23,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 04:07:23,388 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 04:07:23,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 04:07:23,410 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 04:07:23,410 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 04:07:23,410 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-19 04:07:23,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 04:07:23,410 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 04:07:23,411 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-19 04:07:23,411 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 04:07:23,411 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-19 04:07:23,418 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,418 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,418 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,418 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,418 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,418 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,418 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,419 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,420 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,420 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,420 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,420 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,420 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,420 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,420 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,420 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,420 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,421 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,421 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,421 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,421 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,421 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,421 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,421 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,422 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,422 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,422 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,422 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,422 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,422 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,423 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,424 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,425 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,426 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,426 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,426 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,426 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,426 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,426 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,426 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,426 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,427 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,428 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,429 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,430 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,430 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:23,430 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 04:07:23,431 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 04:07:23,433 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 04:07:23,433 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-19 04:07:23,434 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 130 flow [2022-01-19 04:07:23,444 INFO L129 PetriNetUnfolder]: 5/83 cut-off events. [2022-01-19 04:07:23,444 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 04:07:23,445 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 5/83 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 56. Up to 6 conditions per place. [2022-01-19 04:07:23,445 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 130 flow [2022-01-19 04:07:23,446 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 59 transitions, 130 flow [2022-01-19 04:07:23,453 INFO L129 PetriNetUnfolder]: 3/53 cut-off events. [2022-01-19 04:07:23,453 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 04:07:23,453 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:23,454 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] [2022-01-19 04:07:23,454 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:23,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:23,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1378291579, now seen corresponding path program 1 times [2022-01-19 04:07:23,455 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:23,455 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142001583] [2022-01-19 04:07:23,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:23,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:23,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:23,576 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 04:07:23,576 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:23,576 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142001583] [2022-01-19 04:07:23,577 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142001583] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:23,577 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:23,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:07:23,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990600605] [2022-01-19 04:07:23,577 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:23,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 04:07:23,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:23,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 04:07:23,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 04:07:23,582 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 59 [2022-01-19 04:07:23,583 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 61 places, 59 transitions, 130 flow. Second operand has 5 states, 5 states have (on average 36.8) internal successors, (184), 5 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,583 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:23,583 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 59 [2022-01-19 04:07:23,583 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:23,746 INFO L129 PetriNetUnfolder]: 85/311 cut-off events. [2022-01-19 04:07:23,746 INFO L130 PetriNetUnfolder]: For 27/27 co-relation queries the response was YES. [2022-01-19 04:07:23,748 INFO L84 FinitePrefix]: Finished finitePrefix Result has 553 conditions, 311 events. 85/311 cut-off events. For 27/27 co-relation queries the response was YES. Maximal size of possible extension queue 27. Compared 1524 event pairs, 37 based on Foata normal form. 122/394 useless extension candidates. Maximal degree in co-relation 416. Up to 69 conditions per place. [2022-01-19 04:07:23,750 INFO L132 encePairwiseOnDemand]: 49/59 looper letters, 37 selfloop transitions, 9 changer transitions 4/79 dead transitions. [2022-01-19 04:07:23,751 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 60 places, 79 transitions, 278 flow [2022-01-19 04:07:23,751 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 04:07:23,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 04:07:23,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 273 transitions. [2022-01-19 04:07:23,755 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7711864406779662 [2022-01-19 04:07:23,756 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 273 transitions. [2022-01-19 04:07:23,756 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 273 transitions. [2022-01-19 04:07:23,756 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:23,756 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 273 transitions. [2022-01-19 04:07:23,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 45.5) internal successors, (273), 6 states have internal predecessors, (273), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,760 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,760 INFO L186 Difference]: Start difference. First operand has 61 places, 59 transitions, 130 flow. Second operand 6 states and 273 transitions. [2022-01-19 04:07:23,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 60 places, 79 transitions, 278 flow [2022-01-19 04:07:23,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 60 places, 79 transitions, 276 flow, removed 1 selfloop flow, removed 0 redundant places. [2022-01-19 04:07:23,763 INFO L242 Difference]: Finished difference. Result has 63 places, 55 transitions, 157 flow [2022-01-19 04:07:23,763 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=114, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=157, PETRI_PLACES=63, PETRI_TRANSITIONS=55} [2022-01-19 04:07:23,764 INFO L334 CegarLoopForPetriNet]: 61 programPoint places, 2 predicate places. [2022-01-19 04:07:23,764 INFO L470 AbstractCegarLoop]: Abstraction has has 63 places, 55 transitions, 157 flow [2022-01-19 04:07:23,764 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 36.8) internal successors, (184), 5 states have internal predecessors, (184), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,765 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:23,765 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:23,765 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 04:07:23,766 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:23,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:23,766 INFO L85 PathProgramCache]: Analyzing trace with hash -2061461654, now seen corresponding path program 1 times [2022-01-19 04:07:23,766 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:23,766 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490440841] [2022-01-19 04:07:23,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:23,766 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:23,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:23,859 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:07:23,859 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:23,860 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490440841] [2022-01-19 04:07:23,860 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490440841] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:23,860 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:23,860 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:07:23,860 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2021842968] [2022-01-19 04:07:23,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:23,861 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 04:07:23,861 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:23,861 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 04:07:23,862 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 04:07:23,862 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 35 out of 59 [2022-01-19 04:07:23,862 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 63 places, 55 transitions, 157 flow. Second operand has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,862 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:23,862 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 35 of 59 [2022-01-19 04:07:23,862 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:23,975 INFO L129 PetriNetUnfolder]: 80/288 cut-off events. [2022-01-19 04:07:23,976 INFO L130 PetriNetUnfolder]: For 74/74 co-relation queries the response was YES. [2022-01-19 04:07:23,977 INFO L84 FinitePrefix]: Finished finitePrefix Result has 596 conditions, 288 events. 80/288 cut-off events. For 74/74 co-relation queries the response was YES. Maximal size of possible extension queue 25. Compared 1331 event pairs, 29 based on Foata normal form. 0/274 useless extension candidates. Maximal degree in co-relation 505. Up to 68 conditions per place. [2022-01-19 04:07:23,978 INFO L132 encePairwiseOnDemand]: 53/59 looper letters, 34 selfloop transitions, 11 changer transitions 4/78 dead transitions. [2022-01-19 04:07:23,978 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 66 places, 78 transitions, 318 flow [2022-01-19 04:07:23,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 04:07:23,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 04:07:23,979 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 257 transitions. [2022-01-19 04:07:23,979 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7259887005649718 [2022-01-19 04:07:23,979 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 257 transitions. [2022-01-19 04:07:23,979 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 257 transitions. [2022-01-19 04:07:23,980 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:23,980 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 257 transitions. [2022-01-19 04:07:23,980 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 42.833333333333336) internal successors, (257), 6 states have internal predecessors, (257), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,981 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,982 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,982 INFO L186 Difference]: Start difference. First operand has 63 places, 55 transitions, 157 flow. Second operand 6 states and 257 transitions. [2022-01-19 04:07:23,982 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 66 places, 78 transitions, 318 flow [2022-01-19 04:07:23,984 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 66 places, 78 transitions, 318 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 04:07:23,985 INFO L242 Difference]: Finished difference. Result has 68 places, 56 transitions, 204 flow [2022-01-19 04:07:23,986 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=157, PETRI_DIFFERENCE_MINUEND_PLACES=61, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=46, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=204, PETRI_PLACES=68, PETRI_TRANSITIONS=56} [2022-01-19 04:07:23,987 INFO L334 CegarLoopForPetriNet]: 61 programPoint places, 7 predicate places. [2022-01-19 04:07:23,988 INFO L470 AbstractCegarLoop]: Abstraction has has 68 places, 56 transitions, 204 flow [2022-01-19 04:07:23,990 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 37.0) internal successors, (185), 5 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:23,991 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:23,992 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:23,992 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 04:07:23,992 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:23,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:23,992 INFO L85 PathProgramCache]: Analyzing trace with hash 1198763907, now seen corresponding path program 1 times [2022-01-19 04:07:23,993 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:23,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844811290] [2022-01-19 04:07:23,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:23,993 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:24,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:24,117 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:07:24,117 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:24,117 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844811290] [2022-01-19 04:07:24,118 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844811290] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:24,118 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:24,118 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:07:24,118 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337770794] [2022-01-19 04:07:24,118 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:24,118 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:07:24,119 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:24,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:07:24,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:07:24,120 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 59 [2022-01-19 04:07:24,121 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 68 places, 56 transitions, 204 flow. Second operand has 7 states, 7 states have (on average 36.142857142857146) internal successors, (253), 7 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,121 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:24,121 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 59 [2022-01-19 04:07:24,121 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:24,275 INFO L129 PetriNetUnfolder]: 78/274 cut-off events. [2022-01-19 04:07:24,275 INFO L130 PetriNetUnfolder]: For 208/208 co-relation queries the response was YES. [2022-01-19 04:07:24,276 INFO L84 FinitePrefix]: Finished finitePrefix Result has 639 conditions, 274 events. 78/274 cut-off events. For 208/208 co-relation queries the response was YES. Maximal size of possible extension queue 22. Compared 1202 event pairs, 21 based on Foata normal form. 6/277 useless extension candidates. Maximal degree in co-relation 535. Up to 50 conditions per place. [2022-01-19 04:07:24,277 INFO L132 encePairwiseOnDemand]: 51/59 looper letters, 31 selfloop transitions, 9 changer transitions 15/82 dead transitions. [2022-01-19 04:07:24,277 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 73 places, 82 transitions, 384 flow [2022-01-19 04:07:24,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 04:07:24,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 04:07:24,278 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 328 transitions. [2022-01-19 04:07:24,278 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6949152542372882 [2022-01-19 04:07:24,278 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 328 transitions. [2022-01-19 04:07:24,278 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 328 transitions. [2022-01-19 04:07:24,278 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:24,279 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 328 transitions. [2022-01-19 04:07:24,279 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 41.0) internal successors, (328), 8 states have internal predecessors, (328), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,280 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,281 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 59.0) internal successors, (531), 9 states have internal predecessors, (531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,281 INFO L186 Difference]: Start difference. First operand has 68 places, 56 transitions, 204 flow. Second operand 8 states and 328 transitions. [2022-01-19 04:07:24,281 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 73 places, 82 transitions, 384 flow [2022-01-19 04:07:24,285 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 82 transitions, 380 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 04:07:24,286 INFO L242 Difference]: Finished difference. Result has 73 places, 52 transitions, 197 flow [2022-01-19 04:07:24,287 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=200, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=47, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=197, PETRI_PLACES=73, PETRI_TRANSITIONS=52} [2022-01-19 04:07:24,289 INFO L334 CegarLoopForPetriNet]: 61 programPoint places, 12 predicate places. [2022-01-19 04:07:24,289 INFO L470 AbstractCegarLoop]: Abstraction has has 73 places, 52 transitions, 197 flow [2022-01-19 04:07:24,289 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.142857142857146) internal successors, (253), 7 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,289 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:24,289 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:24,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 04:07:24,289 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:24,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:24,290 INFO L85 PathProgramCache]: Analyzing trace with hash 678171939, now seen corresponding path program 2 times [2022-01-19 04:07:24,290 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:24,290 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521176488] [2022-01-19 04:07:24,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:24,290 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:24,381 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:07:24,382 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:24,382 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521176488] [2022-01-19 04:07:24,382 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521176488] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:24,382 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:24,382 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:07:24,382 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [685785162] [2022-01-19 04:07:24,382 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:24,383 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:07:24,383 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:24,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:07:24,383 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:07:24,384 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 59 [2022-01-19 04:07:24,385 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 73 places, 52 transitions, 197 flow. Second operand has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,385 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:24,385 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 59 [2022-01-19 04:07:24,385 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:24,491 INFO L129 PetriNetUnfolder]: 99/355 cut-off events. [2022-01-19 04:07:24,491 INFO L130 PetriNetUnfolder]: For 435/435 co-relation queries the response was YES. [2022-01-19 04:07:24,492 INFO L84 FinitePrefix]: Finished finitePrefix Result has 854 conditions, 355 events. 99/355 cut-off events. For 435/435 co-relation queries the response was YES. Maximal size of possible extension queue 30. Compared 1757 event pairs, 45 based on Foata normal form. 6/357 useless extension candidates. Maximal degree in co-relation 773. Up to 118 conditions per place. [2022-01-19 04:07:24,493 INFO L132 encePairwiseOnDemand]: 51/59 looper letters, 33 selfloop transitions, 8 changer transitions 11/79 dead transitions. [2022-01-19 04:07:24,494 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 79 transitions, 406 flow [2022-01-19 04:07:24,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 04:07:24,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 04:07:24,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 256 transitions. [2022-01-19 04:07:24,495 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7231638418079096 [2022-01-19 04:07:24,495 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 256 transitions. [2022-01-19 04:07:24,495 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 256 transitions. [2022-01-19 04:07:24,495 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:24,495 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 256 transitions. [2022-01-19 04:07:24,496 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,496 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,496 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 59.0) internal successors, (413), 7 states have internal predecessors, (413), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,496 INFO L186 Difference]: Start difference. First operand has 73 places, 52 transitions, 197 flow. Second operand 6 states and 256 transitions. [2022-01-19 04:07:24,497 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 79 transitions, 406 flow [2022-01-19 04:07:24,498 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 68 places, 79 transitions, 366 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-01-19 04:07:24,499 INFO L242 Difference]: Finished difference. Result has 70 places, 55 transitions, 222 flow [2022-01-19 04:07:24,499 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=172, PETRI_DIFFERENCE_MINUEND_PLACES=63, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=52, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=45, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=222, PETRI_PLACES=70, PETRI_TRANSITIONS=55} [2022-01-19 04:07:24,500 INFO L334 CegarLoopForPetriNet]: 61 programPoint places, 9 predicate places. [2022-01-19 04:07:24,500 INFO L470 AbstractCegarLoop]: Abstraction has has 70 places, 55 transitions, 222 flow [2022-01-19 04:07:24,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,500 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:24,500 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:24,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 04:07:24,501 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:24,501 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:24,501 INFO L85 PathProgramCache]: Analyzing trace with hash -140545457, now seen corresponding path program 1 times [2022-01-19 04:07:24,501 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:24,501 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1419141946] [2022-01-19 04:07:24,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:24,502 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:24,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:24,580 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:07:24,580 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:24,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1419141946] [2022-01-19 04:07:24,582 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1419141946] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:24,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:24,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:07:24,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1570928929] [2022-01-19 04:07:24,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:24,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:07:24,585 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:24,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:07:24,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:07:24,586 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 59 [2022-01-19 04:07:24,586 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 70 places, 55 transitions, 222 flow. Second operand has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,586 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:24,586 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 59 [2022-01-19 04:07:24,586 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:24,704 INFO L129 PetriNetUnfolder]: 101/381 cut-off events. [2022-01-19 04:07:24,704 INFO L130 PetriNetUnfolder]: For 455/455 co-relation queries the response was YES. [2022-01-19 04:07:24,705 INFO L84 FinitePrefix]: Finished finitePrefix Result has 910 conditions, 381 events. 101/381 cut-off events. For 455/455 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1988 event pairs, 44 based on Foata normal form. 6/383 useless extension candidates. Maximal degree in co-relation 847. Up to 99 conditions per place. [2022-01-19 04:07:24,707 INFO L132 encePairwiseOnDemand]: 50/59 looper letters, 34 selfloop transitions, 12 changer transitions 10/83 dead transitions. [2022-01-19 04:07:24,707 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 83 transitions, 439 flow [2022-01-19 04:07:24,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 04:07:24,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 04:07:24,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 291 transitions. [2022-01-19 04:07:24,708 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7046004842615012 [2022-01-19 04:07:24,708 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 291 transitions. [2022-01-19 04:07:24,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 291 transitions. [2022-01-19 04:07:24,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:24,709 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 291 transitions. [2022-01-19 04:07:24,709 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 41.57142857142857) internal successors, (291), 7 states have internal predecessors, (291), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,710 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,710 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,710 INFO L186 Difference]: Start difference. First operand has 70 places, 55 transitions, 222 flow. Second operand 7 states and 291 transitions. [2022-01-19 04:07:24,710 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 83 transitions, 439 flow [2022-01-19 04:07:24,712 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 72 places, 83 transitions, 419 flow, removed 2 selfloop flow, removed 4 redundant places. [2022-01-19 04:07:24,715 INFO L242 Difference]: Finished difference. Result has 75 places, 57 transitions, 263 flow [2022-01-19 04:07:24,715 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=206, PETRI_DIFFERENCE_MINUEND_PLACES=66, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=44, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=263, PETRI_PLACES=75, PETRI_TRANSITIONS=57} [2022-01-19 04:07:24,716 INFO L334 CegarLoopForPetriNet]: 61 programPoint places, 14 predicate places. [2022-01-19 04:07:24,718 INFO L470 AbstractCegarLoop]: Abstraction has has 75 places, 57 transitions, 263 flow [2022-01-19 04:07:24,719 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 36.5) internal successors, (219), 6 states have internal predecessors, (219), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,719 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:24,719 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:24,719 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 04:07:24,719 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:24,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:24,720 INFO L85 PathProgramCache]: Analyzing trace with hash -146990547, now seen corresponding path program 2 times [2022-01-19 04:07:24,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:24,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984685927] [2022-01-19 04:07:24,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:24,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:24,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:24,848 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:07:24,848 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:24,849 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1984685927] [2022-01-19 04:07:24,849 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1984685927] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:24,849 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:24,849 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:07:24,849 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188112110] [2022-01-19 04:07:24,849 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:24,849 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:07:24,849 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:24,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:07:24,850 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:07:24,850 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 34 out of 59 [2022-01-19 04:07:24,851 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 75 places, 57 transitions, 263 flow. Second operand has 7 states, 7 states have (on average 36.142857142857146) internal successors, (253), 7 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,851 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:24,851 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 34 of 59 [2022-01-19 04:07:24,851 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:24,938 INFO L129 PetriNetUnfolder]: 62/217 cut-off events. [2022-01-19 04:07:24,939 INFO L130 PetriNetUnfolder]: For 338/338 co-relation queries the response was YES. [2022-01-19 04:07:24,939 INFO L84 FinitePrefix]: Finished finitePrefix Result has 576 conditions, 217 events. 62/217 cut-off events. For 338/338 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 774 event pairs, 17 based on Foata normal form. 6/220 useless extension candidates. Maximal degree in co-relation 561. Up to 63 conditions per place. [2022-01-19 04:07:24,940 INFO L132 encePairwiseOnDemand]: 52/59 looper letters, 0 selfloop transitions, 0 changer transitions 63/63 dead transitions. [2022-01-19 04:07:24,940 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 78 places, 63 transitions, 335 flow [2022-01-19 04:07:24,940 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 04:07:24,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 04:07:24,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 267 transitions. [2022-01-19 04:07:24,941 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6464891041162227 [2022-01-19 04:07:24,941 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 267 transitions. [2022-01-19 04:07:24,941 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 267 transitions. [2022-01-19 04:07:24,942 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:24,942 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 267 transitions. [2022-01-19 04:07:24,942 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 38.142857142857146) internal successors, (267), 7 states have internal predecessors, (267), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,943 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,943 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 59.0) internal successors, (472), 8 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,943 INFO L186 Difference]: Start difference. First operand has 75 places, 57 transitions, 263 flow. Second operand 7 states and 267 transitions. [2022-01-19 04:07:24,943 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 78 places, 63 transitions, 335 flow [2022-01-19 04:07:24,945 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 71 places, 63 transitions, 292 flow, removed 4 selfloop flow, removed 7 redundant places. [2022-01-19 04:07:24,945 INFO L242 Difference]: Finished difference. Result has 71 places, 0 transitions, 0 flow [2022-01-19 04:07:24,945 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=59, PETRI_DIFFERENCE_MINUEND_FLOW=204, PETRI_DIFFERENCE_MINUEND_PLACES=65, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=55, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=71, PETRI_TRANSITIONS=0} [2022-01-19 04:07:24,946 INFO L334 CegarLoopForPetriNet]: 61 programPoint places, 10 predicate places. [2022-01-19 04:07:24,946 INFO L470 AbstractCegarLoop]: Abstraction has has 71 places, 0 transitions, 0 flow [2022-01-19 04:07:24,946 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 36.142857142857146) internal successors, (253), 7 states have internal predecessors, (253), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:24,946 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-01-19 04:07:24,946 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 3 remaining) [2022-01-19 04:07:24,946 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 3 remaining) [2022-01-19 04:07:24,947 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 04:07:24,947 INFO L732 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1] [2022-01-19 04:07:24,947 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE (1/2) [2022-01-19 04:07:24,948 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 04:07:24,948 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 04:07:24,948 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 04:07:24,949 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 61 places, 59 transitions, 130 flow [2022-01-19 04:07:24,954 INFO L129 PetriNetUnfolder]: 5/83 cut-off events. [2022-01-19 04:07:24,954 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 04:07:24,954 INFO L84 FinitePrefix]: Finished finitePrefix Result has 93 conditions, 83 events. 5/83 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 147 event pairs, 0 based on Foata normal form. 0/73 useless extension candidates. Maximal degree in co-relation 56. Up to 6 conditions per place. [2022-01-19 04:07:24,954 INFO L82 GeneralOperation]: Start removeDead. Operand has 61 places, 59 transitions, 130 flow [2022-01-19 04:07:24,955 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 61 places, 59 transitions, 130 flow [2022-01-19 04:07:24,959 INFO L129 PetriNetUnfolder]: 4/77 cut-off events. [2022-01-19 04:07:24,959 INFO L130 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-01-19 04:07:24,959 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:24,959 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:24,959 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 04:07:24,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:24,960 INFO L85 PathProgramCache]: Analyzing trace with hash -1144847341, now seen corresponding path program 1 times [2022-01-19 04:07:24,960 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:24,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318426832] [2022-01-19 04:07:24,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:24,960 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:24,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 04:07:24,966 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 04:07:24,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 04:07:24,973 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 04:07:24,973 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 04:07:24,973 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-19 04:07:24,974 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 04:07:24,974 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 04:07:24,974 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-19 04:07:24,974 WARN L235 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 04:07:24,974 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2022-01-19 04:07:24,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,982 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,983 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,984 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,985 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,986 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,987 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,988 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,989 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,990 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,991 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,992 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,993 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,994 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,995 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,996 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:07:24,996 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 04:07:24,997 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 04:07:24,998 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 04:07:24,998 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 04:07:24,999 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 169 flow [2022-01-19 04:07:25,006 INFO L129 PetriNetUnfolder]: 7/111 cut-off events. [2022-01-19 04:07:25,006 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 04:07:25,007 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 111 events. 7/111 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 231 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 87. Up to 8 conditions per place. [2022-01-19 04:07:25,007 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 169 flow [2022-01-19 04:07:25,008 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 74 transitions, 169 flow [2022-01-19 04:07:25,011 INFO L129 PetriNetUnfolder]: 2/54 cut-off events. [2022-01-19 04:07:25,011 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 04:07:25,011 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:25,011 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] [2022-01-19 04:07:25,011 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:25,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:25,011 INFO L85 PathProgramCache]: Analyzing trace with hash -1314245879, now seen corresponding path program 1 times [2022-01-19 04:07:25,012 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:25,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [580996883] [2022-01-19 04:07:25,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:25,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:25,051 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 04:07:25,051 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:25,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [580996883] [2022-01-19 04:07:25,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [580996883] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:25,052 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:25,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:07:25,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1555994497] [2022-01-19 04:07:25,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:25,052 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 04:07:25,052 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:25,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 04:07:25,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 04:07:25,053 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 74 [2022-01-19 04:07:25,053 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 77 places, 74 transitions, 169 flow. Second operand has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:25,053 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:25,053 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 74 [2022-01-19 04:07:25,054 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:25,507 INFO L129 PetriNetUnfolder]: 2447/4992 cut-off events. [2022-01-19 04:07:25,508 INFO L130 PetriNetUnfolder]: For 784/784 co-relation queries the response was YES. [2022-01-19 04:07:25,522 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9480 conditions, 4992 events. 2447/4992 cut-off events. For 784/784 co-relation queries the response was YES. Maximal size of possible extension queue 301. Compared 39362 event pairs, 1117 based on Foata normal form. 1519/5687 useless extension candidates. Maximal degree in co-relation 4058. Up to 1793 conditions per place. [2022-01-19 04:07:25,547 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 89 selfloop transitions, 12 changer transitions 0/136 dead transitions. [2022-01-19 04:07:25,547 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 136 transitions, 533 flow [2022-01-19 04:07:25,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 04:07:25,547 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 04:07:25,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 357 transitions. [2022-01-19 04:07:25,548 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8040540540540541 [2022-01-19 04:07:25,548 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 357 transitions. [2022-01-19 04:07:25,548 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 357 transitions. [2022-01-19 04:07:25,548 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:25,549 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 357 transitions. [2022-01-19 04:07:25,550 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 59.5) internal successors, (357), 6 states have internal predecessors, (357), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:25,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:25,551 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:25,551 INFO L186 Difference]: Start difference. First operand has 77 places, 74 transitions, 169 flow. Second operand 6 states and 357 transitions. [2022-01-19 04:07:25,551 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 136 transitions, 533 flow [2022-01-19 04:07:25,552 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 76 places, 136 transitions, 519 flow, removed 7 selfloop flow, removed 0 redundant places. [2022-01-19 04:07:25,554 INFO L242 Difference]: Finished difference. Result has 80 places, 79 transitions, 240 flow [2022-01-19 04:07:25,554 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=149, PETRI_DIFFERENCE_MINUEND_PLACES=71, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=67, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=61, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=240, PETRI_PLACES=80, PETRI_TRANSITIONS=79} [2022-01-19 04:07:25,555 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 3 predicate places. [2022-01-19 04:07:25,555 INFO L470 AbstractCegarLoop]: Abstraction has has 80 places, 79 transitions, 240 flow [2022-01-19 04:07:25,555 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 41.8) internal successors, (209), 5 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:25,555 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:25,555 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:25,556 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 04:07:25,556 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:25,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:25,556 INFO L85 PathProgramCache]: Analyzing trace with hash -465754956, now seen corresponding path program 1 times [2022-01-19 04:07:25,556 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:25,556 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015077682] [2022-01-19 04:07:25,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:25,556 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:25,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:25,608 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:07:25,609 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:25,609 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015077682] [2022-01-19 04:07:25,609 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015077682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:25,609 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:25,609 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:07:25,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [506506205] [2022-01-19 04:07:25,609 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:25,609 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 04:07:25,609 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:25,610 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 04:07:25,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 04:07:25,610 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 74 [2022-01-19 04:07:25,610 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 80 places, 79 transitions, 240 flow. Second operand has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:25,610 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:25,610 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 74 [2022-01-19 04:07:25,610 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:26,106 INFO L129 PetriNetUnfolder]: 3323/6727 cut-off events. [2022-01-19 04:07:26,106 INFO L130 PetriNetUnfolder]: For 2023/2033 co-relation queries the response was YES. [2022-01-19 04:07:26,124 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14478 conditions, 6727 events. 3323/6727 cut-off events. For 2023/2033 co-relation queries the response was YES. Maximal size of possible extension queue 372. Compared 55989 event pairs, 1227 based on Foata normal form. 10/6146 useless extension candidates. Maximal degree in co-relation 14385. Up to 2718 conditions per place. [2022-01-19 04:07:26,154 INFO L132 encePairwiseOnDemand]: 67/74 looper letters, 94 selfloop transitions, 19 changer transitions 0/149 dead transitions. [2022-01-19 04:07:26,154 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 85 places, 149 transitions, 694 flow [2022-01-19 04:07:26,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 04:07:26,154 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 04:07:26,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 341 transitions. [2022-01-19 04:07:26,155 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7680180180180181 [2022-01-19 04:07:26,155 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 341 transitions. [2022-01-19 04:07:26,155 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 341 transitions. [2022-01-19 04:07:26,155 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:26,155 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 341 transitions. [2022-01-19 04:07:26,156 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 56.833333333333336) internal successors, (341), 6 states have internal predecessors, (341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:26,156 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:26,157 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:26,157 INFO L186 Difference]: Start difference. First operand has 80 places, 79 transitions, 240 flow. Second operand 6 states and 341 transitions. [2022-01-19 04:07:26,157 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 85 places, 149 transitions, 694 flow [2022-01-19 04:07:26,162 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 85 places, 149 transitions, 694 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 04:07:26,165 INFO L242 Difference]: Finished difference. Result has 87 places, 91 transitions, 370 flow [2022-01-19 04:07:26,166 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=80, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=79, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=64, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=370, PETRI_PLACES=87, PETRI_TRANSITIONS=91} [2022-01-19 04:07:26,167 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 10 predicate places. [2022-01-19 04:07:26,167 INFO L470 AbstractCegarLoop]: Abstraction has has 87 places, 91 transitions, 370 flow [2022-01-19 04:07:26,167 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.0) internal successors, (210), 5 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:26,167 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:26,167 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:26,167 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 04:07:26,167 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:26,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:26,168 INFO L85 PathProgramCache]: Analyzing trace with hash -1734874099, now seen corresponding path program 1 times [2022-01-19 04:07:26,168 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:26,168 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [975302135] [2022-01-19 04:07:26,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:26,168 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:26,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:26,231 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:07:26,231 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:26,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [975302135] [2022-01-19 04:07:26,231 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [975302135] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:26,231 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:26,231 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:07:26,231 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733781296] [2022-01-19 04:07:26,232 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:26,232 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:07:26,232 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:26,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:07:26,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:07:26,233 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:07:26,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 87 places, 91 transitions, 370 flow. Second operand has 7 states, 7 states have (on average 41.142857142857146) internal successors, (288), 7 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:26,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:26,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:07:26,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:26,856 INFO L129 PetriNetUnfolder]: 3367/6889 cut-off events. [2022-01-19 04:07:26,856 INFO L130 PetriNetUnfolder]: For 4396/4396 co-relation queries the response was YES. [2022-01-19 04:07:26,877 INFO L84 FinitePrefix]: Finished finitePrefix Result has 15967 conditions, 6889 events. 3367/6889 cut-off events. For 4396/4396 co-relation queries the response was YES. Maximal size of possible extension queue 396. Compared 58068 event pairs, 1661 based on Foata normal form. 127/6600 useless extension candidates. Maximal degree in co-relation 14854. Up to 2442 conditions per place. [2022-01-19 04:07:26,904 INFO L132 encePairwiseOnDemand]: 63/74 looper letters, 123 selfloop transitions, 22 changer transitions 3/182 dead transitions. [2022-01-19 04:07:26,904 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 95 places, 182 transitions, 940 flow [2022-01-19 04:07:26,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 04:07:26,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 04:07:26,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 495 transitions. [2022-01-19 04:07:26,906 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7432432432432432 [2022-01-19 04:07:26,906 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 495 transitions. [2022-01-19 04:07:26,906 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 495 transitions. [2022-01-19 04:07:26,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:26,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 495 transitions. [2022-01-19 04:07:26,907 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 55.0) internal successors, (495), 9 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:26,907 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:26,908 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:26,908 INFO L186 Difference]: Start difference. First operand has 87 places, 91 transitions, 370 flow. Second operand 9 states and 495 transitions. [2022-01-19 04:07:26,908 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 95 places, 182 transitions, 940 flow [2022-01-19 04:07:26,912 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 182 transitions, 940 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 04:07:26,914 INFO L242 Difference]: Finished difference. Result has 99 places, 95 transitions, 470 flow [2022-01-19 04:07:26,914 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=370, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=91, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=470, PETRI_PLACES=99, PETRI_TRANSITIONS=95} [2022-01-19 04:07:26,914 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 22 predicate places. [2022-01-19 04:07:26,914 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 95 transitions, 470 flow [2022-01-19 04:07:26,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.142857142857146) internal successors, (288), 7 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:26,915 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:26,915 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:26,915 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 04:07:26,915 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:26,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:26,915 INFO L85 PathProgramCache]: Analyzing trace with hash 136434675, now seen corresponding path program 2 times [2022-01-19 04:07:26,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:26,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342022937] [2022-01-19 04:07:26,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:26,916 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:26,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:26,967 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:07:26,967 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:26,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342022937] [2022-01-19 04:07:26,968 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342022937] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:26,968 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:26,968 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:07:26,968 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254765955] [2022-01-19 04:07:26,968 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:26,968 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:07:26,968 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:26,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:07:26,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:07:26,969 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:07:26,969 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 95 transitions, 470 flow. Second operand has 6 states, 6 states have (on average 41.5) internal successors, (249), 6 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:26,969 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:26,970 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:07:26,970 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:27,792 INFO L129 PetriNetUnfolder]: 4916/10249 cut-off events. [2022-01-19 04:07:27,792 INFO L130 PetriNetUnfolder]: For 12107/12107 co-relation queries the response was YES. [2022-01-19 04:07:27,838 INFO L84 FinitePrefix]: Finished finitePrefix Result has 25541 conditions, 10249 events. 4916/10249 cut-off events. For 12107/12107 co-relation queries the response was YES. Maximal size of possible extension queue 604. Compared 93240 event pairs, 2354 based on Foata normal form. 66/9728 useless extension candidates. Maximal degree in co-relation 23139. Up to 5226 conditions per place. [2022-01-19 04:07:27,876 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 126 selfloop transitions, 28 changer transitions 1/189 dead transitions. [2022-01-19 04:07:27,876 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 189 transitions, 1175 flow [2022-01-19 04:07:27,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 04:07:27,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 04:07:27,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 448 transitions. [2022-01-19 04:07:27,878 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7567567567567568 [2022-01-19 04:07:27,878 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 448 transitions. [2022-01-19 04:07:27,878 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 448 transitions. [2022-01-19 04:07:27,878 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:27,878 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 448 transitions. [2022-01-19 04:07:27,879 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 56.0) internal successors, (448), 8 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:27,880 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:27,880 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:27,880 INFO L186 Difference]: Start difference. First operand has 99 places, 95 transitions, 470 flow. Second operand 8 states and 448 transitions. [2022-01-19 04:07:27,880 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 189 transitions, 1175 flow [2022-01-19 04:07:27,906 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 102 places, 189 transitions, 1124 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-01-19 04:07:27,912 INFO L242 Difference]: Finished difference. Result has 106 places, 112 transitions, 684 flow [2022-01-19 04:07:27,912 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=434, PETRI_DIFFERENCE_MINUEND_PLACES=95, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=13, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=684, PETRI_PLACES=106, PETRI_TRANSITIONS=112} [2022-01-19 04:07:27,912 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 29 predicate places. [2022-01-19 04:07:27,912 INFO L470 AbstractCegarLoop]: Abstraction has has 106 places, 112 transitions, 684 flow [2022-01-19 04:07:27,913 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.5) internal successors, (249), 6 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:27,913 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:27,913 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:27,913 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 04:07:27,913 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:27,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:27,913 INFO L85 PathProgramCache]: Analyzing trace with hash 455374523, now seen corresponding path program 3 times [2022-01-19 04:07:27,913 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:27,913 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152370370] [2022-01-19 04:07:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:27,914 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:27,969 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:07:27,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:27,969 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152370370] [2022-01-19 04:07:27,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [152370370] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:27,969 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:27,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:07:27,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1727556393] [2022-01-19 04:07:27,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:27,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:07:27,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:27,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:07:27,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:07:27,971 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:07:27,972 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 112 transitions, 684 flow. Second operand has 6 states, 6 states have (on average 41.5) internal successors, (249), 6 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:27,972 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:27,972 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:07:27,972 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:29,114 INFO L129 PetriNetUnfolder]: 6963/14606 cut-off events. [2022-01-19 04:07:29,114 INFO L130 PetriNetUnfolder]: For 22989/22989 co-relation queries the response was YES. [2022-01-19 04:07:29,245 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38234 conditions, 14606 events. 6963/14606 cut-off events. For 22989/22989 co-relation queries the response was YES. Maximal size of possible extension queue 901. Compared 142638 event pairs, 3576 based on Foata normal form. 66/13847 useless extension candidates. Maximal degree in co-relation 38114. Up to 6791 conditions per place. [2022-01-19 04:07:29,307 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 135 selfloop transitions, 39 changer transitions 1/209 dead transitions. [2022-01-19 04:07:29,308 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 209 transitions, 1525 flow [2022-01-19 04:07:29,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 04:07:29,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 04:07:29,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 443 transitions. [2022-01-19 04:07:29,309 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7483108108108109 [2022-01-19 04:07:29,309 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 443 transitions. [2022-01-19 04:07:29,309 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 443 transitions. [2022-01-19 04:07:29,309 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:29,310 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 443 transitions. [2022-01-19 04:07:29,310 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 55.375) internal successors, (443), 8 states have internal predecessors, (443), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:29,311 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:29,311 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:29,311 INFO L186 Difference]: Start difference. First operand has 106 places, 112 transitions, 684 flow. Second operand 8 states and 443 transitions. [2022-01-19 04:07:29,311 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 209 transitions, 1525 flow [2022-01-19 04:07:29,401 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 209 transitions, 1500 flow, removed 3 selfloop flow, removed 2 redundant places. [2022-01-19 04:07:29,403 INFO L242 Difference]: Finished difference. Result has 115 places, 136 transitions, 1084 flow [2022-01-19 04:07:29,403 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=666, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=112, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=16, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=77, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1084, PETRI_PLACES=115, PETRI_TRANSITIONS=136} [2022-01-19 04:07:29,403 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 38 predicate places. [2022-01-19 04:07:29,404 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 136 transitions, 1084 flow [2022-01-19 04:07:29,404 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.5) internal successors, (249), 6 states have internal predecessors, (249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:29,404 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:29,404 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:29,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 04:07:29,404 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:29,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:29,405 INFO L85 PathProgramCache]: Analyzing trace with hash 1126585041, now seen corresponding path program 4 times [2022-01-19 04:07:29,405 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:29,405 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363095485] [2022-01-19 04:07:29,405 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:29,405 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:29,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:29,466 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:07:29,466 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:29,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363095485] [2022-01-19 04:07:29,466 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363095485] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:29,466 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:29,466 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:07:29,466 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [403283395] [2022-01-19 04:07:29,466 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:29,467 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:07:29,467 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:29,467 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:07:29,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:07:29,468 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:07:29,468 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 136 transitions, 1084 flow. Second operand has 7 states, 7 states have (on average 41.142857142857146) internal successors, (288), 7 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:29,468 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:29,468 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:07:29,468 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:30,839 INFO L129 PetriNetUnfolder]: 6509/13712 cut-off events. [2022-01-19 04:07:30,840 INFO L130 PetriNetUnfolder]: For 30384/30384 co-relation queries the response was YES. [2022-01-19 04:07:30,883 INFO L84 FinitePrefix]: Finished finitePrefix Result has 38279 conditions, 13712 events. 6509/13712 cut-off events. For 30384/30384 co-relation queries the response was YES. Maximal size of possible extension queue 844. Compared 132656 event pairs, 1251 based on Foata normal form. 277/13126 useless extension candidates. Maximal degree in co-relation 38152. Up to 3453 conditions per place. [2022-01-19 04:07:30,926 INFO L132 encePairwiseOnDemand]: 61/74 looper letters, 161 selfloop transitions, 80 changer transitions 6/280 dead transitions. [2022-01-19 04:07:30,926 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 128 places, 280 transitions, 2128 flow [2022-01-19 04:07:30,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 04:07:30,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 04:07:30,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 752 transitions. [2022-01-19 04:07:30,928 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7258687258687259 [2022-01-19 04:07:30,928 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 752 transitions. [2022-01-19 04:07:30,928 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 752 transitions. [2022-01-19 04:07:30,928 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:30,929 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 752 transitions. [2022-01-19 04:07:30,930 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 53.714285714285715) internal successors, (752), 14 states have internal predecessors, (752), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:30,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:30,931 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:30,931 INFO L186 Difference]: Start difference. First operand has 115 places, 136 transitions, 1084 flow. Second operand 14 states and 752 transitions. [2022-01-19 04:07:30,931 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 128 places, 280 transitions, 2128 flow [2022-01-19 04:07:31,061 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 280 transitions, 2105 flow, removed 2 selfloop flow, removed 2 redundant places. [2022-01-19 04:07:31,064 INFO L242 Difference]: Finished difference. Result has 130 places, 149 transitions, 1452 flow [2022-01-19 04:07:31,064 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=1061, PETRI_DIFFERENCE_MINUEND_PLACES=113, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=136, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=65, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=69, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=1452, PETRI_PLACES=130, PETRI_TRANSITIONS=149} [2022-01-19 04:07:31,065 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 53 predicate places. [2022-01-19 04:07:31,065 INFO L470 AbstractCegarLoop]: Abstraction has has 130 places, 149 transitions, 1452 flow [2022-01-19 04:07:31,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.142857142857146) internal successors, (288), 7 states have internal predecessors, (288), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:31,065 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:31,066 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:31,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 04:07:31,066 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:31,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:31,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1617890134, now seen corresponding path program 1 times [2022-01-19 04:07:31,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:31,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163993688] [2022-01-19 04:07:31,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:31,066 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:31,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:31,121 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:07:31,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:31,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163993688] [2022-01-19 04:07:31,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163993688] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:31,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:31,121 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:07:31,122 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904638266] [2022-01-19 04:07:31,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:31,123 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 04:07:31,123 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:31,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 04:07:31,124 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 04:07:31,124 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 40 out of 74 [2022-01-19 04:07:31,124 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 130 places, 149 transitions, 1452 flow. Second operand has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:31,124 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:31,124 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 40 of 74 [2022-01-19 04:07:31,124 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:32,770 INFO L129 PetriNetUnfolder]: 8207/17247 cut-off events. [2022-01-19 04:07:32,770 INFO L130 PetriNetUnfolder]: For 56071/56090 co-relation queries the response was YES. [2022-01-19 04:07:32,829 INFO L84 FinitePrefix]: Finished finitePrefix Result has 53927 conditions, 17247 events. 8207/17247 cut-off events. For 56071/56090 co-relation queries the response was YES. Maximal size of possible extension queue 1058. Compared 169689 event pairs, 3892 based on Foata normal form. 6/16367 useless extension candidates. Maximal degree in co-relation 53803. Up to 5546 conditions per place. [2022-01-19 04:07:32,887 INFO L132 encePairwiseOnDemand]: 67/74 looper letters, 162 selfloop transitions, 59 changer transitions 0/264 dead transitions. [2022-01-19 04:07:32,888 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 264 transitions, 3041 flow [2022-01-19 04:07:32,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 04:07:32,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 04:07:32,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 336 transitions. [2022-01-19 04:07:32,889 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7567567567567568 [2022-01-19 04:07:32,889 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 336 transitions. [2022-01-19 04:07:32,889 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 336 transitions. [2022-01-19 04:07:32,889 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:32,889 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 336 transitions. [2022-01-19 04:07:32,890 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 56.0) internal successors, (336), 6 states have internal predecessors, (336), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:32,890 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:32,891 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 74.0) internal successors, (518), 7 states have internal predecessors, (518), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:32,891 INFO L186 Difference]: Start difference. First operand has 130 places, 149 transitions, 1452 flow. Second operand 6 states and 336 transitions. [2022-01-19 04:07:32,891 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 264 transitions, 3041 flow [2022-01-19 04:07:33,086 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 264 transitions, 2796 flow, removed 30 selfloop flow, removed 7 redundant places. [2022-01-19 04:07:33,091 INFO L242 Difference]: Finished difference. Result has 128 places, 190 transitions, 2110 flow [2022-01-19 04:07:33,091 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=1304, PETRI_DIFFERENCE_MINUEND_PLACES=121, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=149, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=18, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=2110, PETRI_PLACES=128, PETRI_TRANSITIONS=190} [2022-01-19 04:07:33,092 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 51 predicate places. [2022-01-19 04:07:33,092 INFO L470 AbstractCegarLoop]: Abstraction has has 128 places, 190 transitions, 2110 flow [2022-01-19 04:07:33,092 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 42.2) internal successors, (211), 5 states have internal predecessors, (211), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:33,092 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:33,092 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:33,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 04:07:33,092 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:33,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:33,093 INFO L85 PathProgramCache]: Analyzing trace with hash -937348699, now seen corresponding path program 1 times [2022-01-19 04:07:33,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:33,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1527234493] [2022-01-19 04:07:33,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:33,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:33,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:33,162 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:07:33,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:33,162 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1527234493] [2022-01-19 04:07:33,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1527234493] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:33,163 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:33,163 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:07:33,163 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840770317] [2022-01-19 04:07:33,163 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:33,163 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:07:33,163 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:33,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:07:33,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:07:33,164 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:07:33,164 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 128 places, 190 transitions, 2110 flow. Second operand has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:33,164 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:33,164 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:07:33,164 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:35,053 INFO L129 PetriNetUnfolder]: 8282/17446 cut-off events. [2022-01-19 04:07:35,053 INFO L130 PetriNetUnfolder]: For 61177/61189 co-relation queries the response was YES. [2022-01-19 04:07:35,117 INFO L84 FinitePrefix]: Finished finitePrefix Result has 56019 conditions, 17446 events. 8282/17446 cut-off events. For 61177/61189 co-relation queries the response was YES. Maximal size of possible extension queue 1098. Compared 173518 event pairs, 3618 based on Foata normal form. 246/17647 useless extension candidates. Maximal degree in co-relation 55885. Up to 7259 conditions per place. [2022-01-19 04:07:35,169 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 158 selfloop transitions, 89 changer transitions 4/289 dead transitions. [2022-01-19 04:07:35,169 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 136 places, 289 transitions, 3249 flow [2022-01-19 04:07:35,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 04:07:35,170 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 04:07:35,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 484 transitions. [2022-01-19 04:07:35,171 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7267267267267268 [2022-01-19 04:07:35,171 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 484 transitions. [2022-01-19 04:07:35,171 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 484 transitions. [2022-01-19 04:07:35,171 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:35,171 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 484 transitions. [2022-01-19 04:07:35,172 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 53.77777777777778) internal successors, (484), 9 states have internal predecessors, (484), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:35,173 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:35,173 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:35,173 INFO L186 Difference]: Start difference. First operand has 128 places, 190 transitions, 2110 flow. Second operand 9 states and 484 transitions. [2022-01-19 04:07:35,173 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 136 places, 289 transitions, 3249 flow [2022-01-19 04:07:35,444 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 136 places, 289 transitions, 3249 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 04:07:35,447 INFO L242 Difference]: Finished difference. Result has 139 places, 205 transitions, 2624 flow [2022-01-19 04:07:35,447 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=2110, PETRI_DIFFERENCE_MINUEND_PLACES=128, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=190, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=74, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=108, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=2624, PETRI_PLACES=139, PETRI_TRANSITIONS=205} [2022-01-19 04:07:35,447 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 62 predicate places. [2022-01-19 04:07:35,447 INFO L470 AbstractCegarLoop]: Abstraction has has 139 places, 205 transitions, 2624 flow [2022-01-19 04:07:35,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:35,448 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:35,448 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:35,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 04:07:35,448 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:35,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:35,448 INFO L85 PathProgramCache]: Analyzing trace with hash 549940229, now seen corresponding path program 2 times [2022-01-19 04:07:35,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:35,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604762426] [2022-01-19 04:07:35,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:35,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:35,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:35,506 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:07:35,507 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:35,507 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604762426] [2022-01-19 04:07:35,507 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604762426] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:35,507 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:35,507 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:07:35,507 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [255646597] [2022-01-19 04:07:35,507 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:35,508 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:07:35,508 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:35,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:07:35,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:07:35,508 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:07:35,509 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 139 places, 205 transitions, 2624 flow. Second operand has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:35,509 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:35,509 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:07:35,509 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:38,187 INFO L129 PetriNetUnfolder]: 12084/25531 cut-off events. [2022-01-19 04:07:38,187 INFO L130 PetriNetUnfolder]: For 118644/118648 co-relation queries the response was YES. [2022-01-19 04:07:38,356 INFO L84 FinitePrefix]: Finished finitePrefix Result has 87086 conditions, 25531 events. 12084/25531 cut-off events. For 118644/118648 co-relation queries the response was YES. Maximal size of possible extension queue 1602. Compared 269226 event pairs, 7282 based on Foata normal form. 258/25737 useless extension candidates. Maximal degree in co-relation 86945. Up to 14143 conditions per place. [2022-01-19 04:07:38,435 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 229 selfloop transitions, 82 changer transitions 1/350 dead transitions. [2022-01-19 04:07:38,435 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 146 places, 350 transitions, 4917 flow [2022-01-19 04:07:38,436 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 04:07:38,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 04:07:38,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 433 transitions. [2022-01-19 04:07:38,436 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.731418918918919 [2022-01-19 04:07:38,436 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 433 transitions. [2022-01-19 04:07:38,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 433 transitions. [2022-01-19 04:07:38,437 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:38,437 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 433 transitions. [2022-01-19 04:07:38,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 54.125) internal successors, (433), 8 states have internal predecessors, (433), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:38,438 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:38,438 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:38,438 INFO L186 Difference]: Start difference. First operand has 139 places, 205 transitions, 2624 flow. Second operand 8 states and 433 transitions. [2022-01-19 04:07:38,438 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 146 places, 350 transitions, 4917 flow [2022-01-19 04:07:39,457 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 143 places, 350 transitions, 4788 flow, removed 30 selfloop flow, removed 3 redundant places. [2022-01-19 04:07:39,461 INFO L242 Difference]: Finished difference. Result has 147 places, 263 transitions, 3838 flow [2022-01-19 04:07:39,461 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=2533, PETRI_DIFFERENCE_MINUEND_PLACES=136, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=205, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=25, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=135, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=3838, PETRI_PLACES=147, PETRI_TRANSITIONS=263} [2022-01-19 04:07:39,461 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 70 predicate places. [2022-01-19 04:07:39,461 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 263 transitions, 3838 flow [2022-01-19 04:07:39,461 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:39,461 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:39,462 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:39,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 04:07:39,462 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:39,462 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:39,462 INFO L85 PathProgramCache]: Analyzing trace with hash -576218261, now seen corresponding path program 3 times [2022-01-19 04:07:39,462 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:39,462 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1556110283] [2022-01-19 04:07:39,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:39,462 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:39,508 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:07:39,508 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:39,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1556110283] [2022-01-19 04:07:39,508 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1556110283] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:39,508 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:39,508 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:07:39,508 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2005944577] [2022-01-19 04:07:39,508 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:39,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:07:39,509 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:39,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:07:39,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:07:39,509 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:07:39,510 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 263 transitions, 3838 flow. Second operand has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:39,510 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:39,510 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:07:39,510 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:43,437 INFO L129 PetriNetUnfolder]: 15876/34283 cut-off events. [2022-01-19 04:07:43,437 INFO L130 PetriNetUnfolder]: For 183696/183719 co-relation queries the response was YES. [2022-01-19 04:07:43,702 INFO L84 FinitePrefix]: Finished finitePrefix Result has 119701 conditions, 34283 events. 15876/34283 cut-off events. For 183696/183719 co-relation queries the response was YES. Maximal size of possible extension queue 2224. Compared 383584 event pairs, 7346 based on Foata normal form. 260/34466 useless extension candidates. Maximal degree in co-relation 110666. Up to 14293 conditions per place. [2022-01-19 04:07:43,813 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 238 selfloop transitions, 152 changer transitions 1/429 dead transitions. [2022-01-19 04:07:43,813 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 154 places, 429 transitions, 6745 flow [2022-01-19 04:07:43,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 04:07:43,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 04:07:43,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 440 transitions. [2022-01-19 04:07:43,814 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7432432432432432 [2022-01-19 04:07:43,814 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 440 transitions. [2022-01-19 04:07:43,814 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 440 transitions. [2022-01-19 04:07:43,814 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:43,814 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 440 transitions. [2022-01-19 04:07:43,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 55.0) internal successors, (440), 8 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:43,816 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:43,816 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:43,816 INFO L186 Difference]: Start difference. First operand has 147 places, 263 transitions, 3838 flow. Second operand 8 states and 440 transitions. [2022-01-19 04:07:43,816 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 154 places, 429 transitions, 6745 flow [2022-01-19 04:07:46,508 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 152 places, 429 transitions, 6678 flow, removed 9 selfloop flow, removed 2 redundant places. [2022-01-19 04:07:46,513 INFO L242 Difference]: Finished difference. Result has 156 places, 341 transitions, 5892 flow [2022-01-19 04:07:46,514 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=3792, PETRI_DIFFERENCE_MINUEND_PLACES=145, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=263, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=78, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=131, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=5892, PETRI_PLACES=156, PETRI_TRANSITIONS=341} [2022-01-19 04:07:46,514 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 79 predicate places. [2022-01-19 04:07:46,514 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 341 transitions, 5892 flow [2022-01-19 04:07:46,514 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:46,519 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:46,519 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:46,519 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 04:07:46,519 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:46,520 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:46,520 INFO L85 PathProgramCache]: Analyzing trace with hash 424885327, now seen corresponding path program 4 times [2022-01-19 04:07:46,520 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:46,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1098678429] [2022-01-19 04:07:46,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:46,520 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:46,583 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:07:46,583 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:46,583 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1098678429] [2022-01-19 04:07:46,583 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1098678429] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:46,583 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:46,583 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:07:46,583 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [282068199] [2022-01-19 04:07:46,583 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:46,584 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:07:46,584 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:46,585 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:07:46,585 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:07:46,585 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:07:46,585 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 341 transitions, 5892 flow. Second operand has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:46,585 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:46,585 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:07:46,585 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:50,553 INFO L129 PetriNetUnfolder]: 14003/30607 cut-off events. [2022-01-19 04:07:50,553 INFO L130 PetriNetUnfolder]: For 204687/204697 co-relation queries the response was YES. [2022-01-19 04:07:50,803 INFO L84 FinitePrefix]: Finished finitePrefix Result has 115265 conditions, 30607 events. 14003/30607 cut-off events. For 204687/204697 co-relation queries the response was YES. Maximal size of possible extension queue 1869. Compared 338397 event pairs, 2815 based on Foata normal form. 648/31187 useless extension candidates. Maximal degree in co-relation 107171. Up to 6561 conditions per place. [2022-01-19 04:07:51,053 INFO L132 encePairwiseOnDemand]: 61/74 looper letters, 205 selfloop transitions, 254 changer transitions 7/503 dead transitions. [2022-01-19 04:07:51,053 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 169 places, 503 transitions, 8047 flow [2022-01-19 04:07:51,067 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 04:07:51,067 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 04:07:51,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 740 transitions. [2022-01-19 04:07:51,068 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7142857142857143 [2022-01-19 04:07:51,069 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 740 transitions. [2022-01-19 04:07:51,069 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 740 transitions. [2022-01-19 04:07:51,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:51,069 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 740 transitions. [2022-01-19 04:07:51,070 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 52.857142857142854) internal successors, (740), 14 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:51,071 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:51,071 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:51,072 INFO L186 Difference]: Start difference. First operand has 156 places, 341 transitions, 5892 flow. Second operand 14 states and 740 transitions. [2022-01-19 04:07:51,072 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 169 places, 503 transitions, 8047 flow [2022-01-19 04:07:53,782 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 168 places, 503 transitions, 8028 flow, removed 5 selfloop flow, removed 1 redundant places. [2022-01-19 04:07:53,788 INFO L242 Difference]: Finished difference. Result has 172 places, 371 transitions, 7233 flow [2022-01-19 04:07:53,788 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=5873, PETRI_DIFFERENCE_MINUEND_PLACES=155, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=341, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=222, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=117, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=7233, PETRI_PLACES=172, PETRI_TRANSITIONS=371} [2022-01-19 04:07:53,789 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 95 predicate places. [2022-01-19 04:07:53,789 INFO L470 AbstractCegarLoop]: Abstraction has has 172 places, 371 transitions, 7233 flow [2022-01-19 04:07:53,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:53,789 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:07:53,789 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:07:53,789 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 04:07:53,789 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:07:53,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:07:53,790 INFO L85 PathProgramCache]: Analyzing trace with hash -188080573, now seen corresponding path program 1 times [2022-01-19 04:07:53,790 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:07:53,790 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2125386651] [2022-01-19 04:07:53,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:07:53,790 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:07:53,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:07:53,861 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:07:53,861 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:07:53,861 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2125386651] [2022-01-19 04:07:53,861 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2125386651] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:07:53,861 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:07:53,861 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:07:53,862 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [453887875] [2022-01-19 04:07:53,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:07:53,863 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:07:53,863 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:07:53,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:07:53,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:07:53,864 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:07:53,864 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 172 places, 371 transitions, 7233 flow. Second operand has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:53,864 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:07:53,864 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:07:53,865 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:07:57,829 INFO L129 PetriNetUnfolder]: 13605/29473 cut-off events. [2022-01-19 04:07:57,830 INFO L130 PetriNetUnfolder]: For 258509/258520 co-relation queries the response was YES. [2022-01-19 04:07:58,060 INFO L84 FinitePrefix]: Finished finitePrefix Result has 120625 conditions, 29473 events. 13605/29473 cut-off events. For 258509/258520 co-relation queries the response was YES. Maximal size of possible extension queue 1754. Compared 323119 event pairs, 4919 based on Foata normal form. 252/29675 useless extension candidates. Maximal degree in co-relation 120475. Up to 10328 conditions per place. [2022-01-19 04:07:58,151 INFO L132 encePairwiseOnDemand]: 65/74 looper letters, 262 selfloop transitions, 154 changer transitions 7/464 dead transitions. [2022-01-19 04:07:58,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 464 transitions, 8735 flow [2022-01-19 04:07:58,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 04:07:58,152 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 04:07:58,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 478 transitions. [2022-01-19 04:07:58,152 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7177177177177178 [2022-01-19 04:07:58,152 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 478 transitions. [2022-01-19 04:07:58,152 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 478 transitions. [2022-01-19 04:07:58,153 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:07:58,153 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 478 transitions. [2022-01-19 04:07:58,153 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 53.111111111111114) internal successors, (478), 9 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:58,154 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:58,154 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:07:58,154 INFO L186 Difference]: Start difference. First operand has 172 places, 371 transitions, 7233 flow. Second operand 9 states and 478 transitions. [2022-01-19 04:07:58,154 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 464 transitions, 8735 flow [2022-01-19 04:08:01,391 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 464 transitions, 8148 flow, removed 53 selfloop flow, removed 8 redundant places. [2022-01-19 04:08:01,398 INFO L242 Difference]: Finished difference. Result has 173 places, 377 transitions, 7195 flow [2022-01-19 04:08:01,399 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=6710, PETRI_DIFFERENCE_MINUEND_PLACES=162, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=371, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=145, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=219, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=7195, PETRI_PLACES=173, PETRI_TRANSITIONS=377} [2022-01-19 04:08:01,399 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 96 predicate places. [2022-01-19 04:08:01,399 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 377 transitions, 7195 flow [2022-01-19 04:08:01,399 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:01,399 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:08:01,399 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:08:01,400 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 04:08:01,400 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:08:01,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:08:01,400 INFO L85 PathProgramCache]: Analyzing trace with hash -67641367, now seen corresponding path program 2 times [2022-01-19 04:08:01,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:08:01,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1503949043] [2022-01-19 04:08:01,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:08:01,400 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:08:01,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:08:01,462 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:08:01,462 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:08:01,462 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1503949043] [2022-01-19 04:08:01,462 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1503949043] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:08:01,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:08:01,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:08:01,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044478724] [2022-01-19 04:08:01,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:08:01,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:08:01,463 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:08:01,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:08:01,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:08:01,463 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:08:01,463 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 377 transitions, 7195 flow. Second operand has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:01,464 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:08:01,464 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:08:01,464 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:08:06,489 INFO L129 PetriNetUnfolder]: 17228/37831 cut-off events. [2022-01-19 04:08:06,489 INFO L130 PetriNetUnfolder]: For 323826/323826 co-relation queries the response was YES. [2022-01-19 04:08:06,876 INFO L84 FinitePrefix]: Finished finitePrefix Result has 152329 conditions, 37831 events. 17228/37831 cut-off events. For 323826/323826 co-relation queries the response was YES. Maximal size of possible extension queue 2337. Compared 434457 event pairs, 7063 based on Foata normal form. 456/38218 useless extension candidates. Maximal degree in co-relation 152179. Up to 18330 conditions per place. [2022-01-19 04:08:06,992 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 370 selfloop transitions, 134 changer transitions 22/567 dead transitions. [2022-01-19 04:08:06,992 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 567 transitions, 11281 flow [2022-01-19 04:08:06,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 04:08:06,993 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 04:08:06,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 430 transitions. [2022-01-19 04:08:06,993 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7263513513513513 [2022-01-19 04:08:06,993 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 430 transitions. [2022-01-19 04:08:06,993 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 430 transitions. [2022-01-19 04:08:06,994 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:08:06,994 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 430 transitions. [2022-01-19 04:08:06,994 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 53.75) internal successors, (430), 8 states have internal predecessors, (430), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:06,995 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:06,995 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:06,995 INFO L186 Difference]: Start difference. First operand has 173 places, 377 transitions, 7195 flow. Second operand 8 states and 430 transitions. [2022-01-19 04:08:06,995 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 567 transitions, 11281 flow [2022-01-19 04:08:12,019 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 177 places, 567 transitions, 11130 flow, removed 27 selfloop flow, removed 3 redundant places. [2022-01-19 04:08:12,027 INFO L242 Difference]: Finished difference. Result has 181 places, 449 transitions, 9036 flow [2022-01-19 04:08:12,027 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=7082, PETRI_DIFFERENCE_MINUEND_PLACES=170, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=377, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=61, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=265, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=9036, PETRI_PLACES=181, PETRI_TRANSITIONS=449} [2022-01-19 04:08:12,028 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 104 predicate places. [2022-01-19 04:08:12,028 INFO L470 AbstractCegarLoop]: Abstraction has has 181 places, 449 transitions, 9036 flow [2022-01-19 04:08:12,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:12,028 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:08:12,028 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:08:12,028 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 04:08:12,028 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:08:12,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:08:12,028 INFO L85 PathProgramCache]: Analyzing trace with hash -400759967, now seen corresponding path program 3 times [2022-01-19 04:08:12,029 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:08:12,029 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [604835079] [2022-01-19 04:08:12,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:08:12,029 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:08:12,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:08:12,084 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:08:12,085 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:08:12,085 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [604835079] [2022-01-19 04:08:12,085 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [604835079] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:08:12,085 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:08:12,085 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:08:12,086 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603866699] [2022-01-19 04:08:12,086 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:08:12,086 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:08:12,086 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:08:12,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:08:12,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:08:12,087 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:08:12,087 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 449 transitions, 9036 flow. Second operand has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:12,087 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:08:12,087 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:08:12,087 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:08:18,685 INFO L129 PetriNetUnfolder]: 20432/45324 cut-off events. [2022-01-19 04:08:18,686 INFO L130 PetriNetUnfolder]: For 438490/438490 co-relation queries the response was YES. [2022-01-19 04:08:19,222 INFO L84 FinitePrefix]: Finished finitePrefix Result has 187875 conditions, 45324 events. 20432/45324 cut-off events. For 438490/438490 co-relation queries the response was YES. Maximal size of possible extension queue 2856. Compared 539501 event pairs, 9738 based on Foata normal form. 342/45580 useless extension candidates. Maximal degree in co-relation 187721. Up to 19927 conditions per place. [2022-01-19 04:08:19,493 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 389 selfloop transitions, 176 changer transitions 31/637 dead transitions. [2022-01-19 04:08:19,493 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 188 places, 637 transitions, 13287 flow [2022-01-19 04:08:19,493 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 04:08:19,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 04:08:19,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 424 transitions. [2022-01-19 04:08:19,494 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7162162162162162 [2022-01-19 04:08:19,494 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 424 transitions. [2022-01-19 04:08:19,494 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 424 transitions. [2022-01-19 04:08:19,499 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:08:19,499 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 424 transitions. [2022-01-19 04:08:19,500 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 53.0) internal successors, (424), 8 states have internal predecessors, (424), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:19,500 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:19,501 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 74.0) internal successors, (666), 9 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:19,501 INFO L186 Difference]: Start difference. First operand has 181 places, 449 transitions, 9036 flow. Second operand 8 states and 424 transitions. [2022-01-19 04:08:19,501 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 188 places, 637 transitions, 13287 flow [2022-01-19 04:08:27,859 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 187 places, 637 transitions, 13262 flow, removed 6 selfloop flow, removed 1 redundant places. [2022-01-19 04:08:27,868 INFO L242 Difference]: Finished difference. Result has 191 places, 519 transitions, 11026 flow [2022-01-19 04:08:27,869 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=9017, PETRI_DIFFERENCE_MINUEND_PLACES=180, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=449, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=291, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11026, PETRI_PLACES=191, PETRI_TRANSITIONS=519} [2022-01-19 04:08:27,869 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 114 predicate places. [2022-01-19 04:08:27,869 INFO L470 AbstractCegarLoop]: Abstraction has has 191 places, 519 transitions, 11026 flow [2022-01-19 04:08:27,870 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.666666666666664) internal successors, (250), 6 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:27,870 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:08:27,870 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:08:27,870 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 04:08:27,870 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:08:27,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:08:27,870 INFO L85 PathProgramCache]: Analyzing trace with hash 1826175947, now seen corresponding path program 4 times [2022-01-19 04:08:27,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:08:27,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163842460] [2022-01-19 04:08:27,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:08:27,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:08:27,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:08:27,921 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:08:27,921 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:08:27,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163842460] [2022-01-19 04:08:27,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163842460] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:08:27,922 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:08:27,922 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:08:27,922 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042083726] [2022-01-19 04:08:27,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:08:27,922 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:08:27,922 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:08:27,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:08:27,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:08:27,923 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 39 out of 74 [2022-01-19 04:08:27,923 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 191 places, 519 transitions, 11026 flow. Second operand has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:27,923 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:08:27,923 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 39 of 74 [2022-01-19 04:08:27,923 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:08:35,214 INFO L129 PetriNetUnfolder]: 20010/46042 cut-off events. [2022-01-19 04:08:35,214 INFO L130 PetriNetUnfolder]: For 495589/495589 co-relation queries the response was YES. [2022-01-19 04:08:35,719 INFO L84 FinitePrefix]: Finished finitePrefix Result has 192033 conditions, 46042 events. 20010/46042 cut-off events. For 495589/495589 co-relation queries the response was YES. Maximal size of possible extension queue 2998. Compared 562699 event pairs, 2868 based on Foata normal form. 252/46207 useless extension candidates. Maximal degree in co-relation 191873. Up to 8736 conditions per place. [2022-01-19 04:08:35,834 INFO L132 encePairwiseOnDemand]: 63/74 looper letters, 254 selfloop transitions, 348 changer transitions 38/680 dead transitions. [2022-01-19 04:08:35,834 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 204 places, 680 transitions, 13859 flow [2022-01-19 04:08:35,834 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 04:08:35,835 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 04:08:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 729 transitions. [2022-01-19 04:08:35,835 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7036679536679536 [2022-01-19 04:08:35,835 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 729 transitions. [2022-01-19 04:08:35,835 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 729 transitions. [2022-01-19 04:08:35,836 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:08:35,836 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 729 transitions. [2022-01-19 04:08:35,837 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 52.07142857142857) internal successors, (729), 14 states have internal predecessors, (729), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:35,838 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:35,838 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 74.0) internal successors, (1110), 15 states have internal predecessors, (1110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:35,838 INFO L186 Difference]: Start difference. First operand has 191 places, 519 transitions, 11026 flow. Second operand 14 states and 729 transitions. [2022-01-19 04:08:35,838 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 204 places, 680 transitions, 13859 flow [2022-01-19 04:08:45,460 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 680 transitions, 13842 flow, removed 2 selfloop flow, removed 1 redundant places. [2022-01-19 04:08:45,470 INFO L242 Difference]: Finished difference. Result has 207 places, 535 transitions, 12394 flow [2022-01-19 04:08:45,470 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=11009, PETRI_DIFFERENCE_MINUEND_PLACES=190, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=326, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=190, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=12394, PETRI_PLACES=207, PETRI_TRANSITIONS=535} [2022-01-19 04:08:45,471 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 130 predicate places. [2022-01-19 04:08:45,471 INFO L470 AbstractCegarLoop]: Abstraction has has 207 places, 535 transitions, 12394 flow [2022-01-19 04:08:45,471 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 41.285714285714285) internal successors, (289), 7 states have internal predecessors, (289), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:45,471 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:08:45,471 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:08:45,471 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 04:08:45,471 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:08:45,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:08:45,472 INFO L85 PathProgramCache]: Analyzing trace with hash 1597572184, now seen corresponding path program 1 times [2022-01-19 04:08:45,472 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:08:45,472 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044210172] [2022-01-19 04:08:45,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:08:45,472 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:08:45,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:08:45,566 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:08:45,567 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:08:45,567 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044210172] [2022-01-19 04:08:45,567 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1044210172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:08:45,567 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:08:45,567 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 04:08:45,567 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053206005] [2022-01-19 04:08:45,567 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:08:45,567 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 04:08:45,567 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:08:45,568 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 04:08:45,568 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 04:08:45,568 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 74 [2022-01-19 04:08:45,568 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 535 transitions, 12394 flow. Second operand has 9 states, 9 states have (on average 40.333333333333336) internal successors, (363), 9 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:45,568 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:08:45,568 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 74 [2022-01-19 04:08:45,568 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:08:53,276 INFO L129 PetriNetUnfolder]: 19927/45537 cut-off events. [2022-01-19 04:08:53,277 INFO L130 PetriNetUnfolder]: For 580137/580137 co-relation queries the response was YES. [2022-01-19 04:08:53,775 INFO L84 FinitePrefix]: Finished finitePrefix Result has 204820 conditions, 45537 events. 19927/45537 cut-off events. For 580137/580137 co-relation queries the response was YES. Maximal size of possible extension queue 2923. Compared 557345 event pairs, 6154 based on Foata normal form. 27/45548 useless extension candidates. Maximal degree in co-relation 204643. Up to 19101 conditions per place. [2022-01-19 04:08:53,902 INFO L132 encePairwiseOnDemand]: 63/74 looper letters, 287 selfloop transitions, 277 changer transitions 26/620 dead transitions. [2022-01-19 04:08:53,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 215 places, 620 transitions, 14045 flow [2022-01-19 04:08:53,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 04:08:53,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 04:08:53,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 561 transitions. [2022-01-19 04:08:53,903 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6891891891891891 [2022-01-19 04:08:53,903 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 561 transitions. [2022-01-19 04:08:53,903 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 561 transitions. [2022-01-19 04:08:53,903 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:08:53,903 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 561 transitions. [2022-01-19 04:08:53,904 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 51.0) internal successors, (561), 11 states have internal predecessors, (561), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:53,905 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:53,905 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:08:53,905 INFO L186 Difference]: Start difference. First operand has 207 places, 535 transitions, 12394 flow. Second operand 11 states and 561 transitions. [2022-01-19 04:08:53,905 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 215 places, 620 transitions, 14045 flow [2022-01-19 04:09:05,530 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 210 places, 620 transitions, 13641 flow, removed 57 selfloop flow, removed 5 redundant places. [2022-01-19 04:09:05,540 INFO L242 Difference]: Finished difference. Result has 211 places, 527 transitions, 12444 flow [2022-01-19 04:09:05,540 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=12003, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=277, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=258, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12444, PETRI_PLACES=211, PETRI_TRANSITIONS=527} [2022-01-19 04:09:05,540 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 134 predicate places. [2022-01-19 04:09:05,541 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 527 transitions, 12444 flow [2022-01-19 04:09:05,541 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.333333333333336) internal successors, (363), 9 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:05,541 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:09:05,541 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:09:05,541 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 04:09:05,541 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:09:05,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:09:05,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1926125450, now seen corresponding path program 2 times [2022-01-19 04:09:05,541 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:09:05,542 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [316261612] [2022-01-19 04:09:05,542 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:09:05,542 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:09:05,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:09:05,620 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:09:05,620 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:09:05,620 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [316261612] [2022-01-19 04:09:05,620 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [316261612] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:09:05,620 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:09:05,620 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 04:09:05,620 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383325879] [2022-01-19 04:09:05,620 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:09:05,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 04:09:05,621 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:09:05,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 04:09:05,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 04:09:05,621 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 74 [2022-01-19 04:09:05,621 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 527 transitions, 12444 flow. Second operand has 9 states, 9 states have (on average 40.333333333333336) internal successors, (363), 9 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:05,621 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:09:05,622 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 74 [2022-01-19 04:09:05,622 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:09:13,061 INFO L129 PetriNetUnfolder]: 19736/45275 cut-off events. [2022-01-19 04:09:13,061 INFO L130 PetriNetUnfolder]: For 593219/593222 co-relation queries the response was YES. [2022-01-19 04:09:13,574 INFO L84 FinitePrefix]: Finished finitePrefix Result has 205160 conditions, 45275 events. 19736/45275 cut-off events. For 593219/593222 co-relation queries the response was YES. Maximal size of possible extension queue 2912. Compared 554970 event pairs, 6100 based on Foata normal form. 27/45272 useless extension candidates. Maximal degree in co-relation 200732. Up to 18819 conditions per place. [2022-01-19 04:09:13,851 INFO L132 encePairwiseOnDemand]: 63/74 looper letters, 279 selfloop transitions, 276 changer transitions 25/610 dead transitions. [2022-01-19 04:09:13,851 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 219 places, 610 transitions, 14076 flow [2022-01-19 04:09:13,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 04:09:13,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 04:09:13,859 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 559 transitions. [2022-01-19 04:09:13,859 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6867321867321867 [2022-01-19 04:09:13,860 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 559 transitions. [2022-01-19 04:09:13,860 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 559 transitions. [2022-01-19 04:09:13,860 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:09:13,860 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 559 transitions. [2022-01-19 04:09:13,860 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 50.81818181818182) internal successors, (559), 11 states have internal predecessors, (559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:13,861 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:13,861 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 74.0) internal successors, (888), 12 states have internal predecessors, (888), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:13,861 INFO L186 Difference]: Start difference. First operand has 211 places, 527 transitions, 12444 flow. Second operand 11 states and 559 transitions. [2022-01-19 04:09:13,861 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 219 places, 610 transitions, 14076 flow [2022-01-19 04:09:23,480 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 610 transitions, 13681 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-01-19 04:09:23,490 INFO L242 Difference]: Finished difference. Result has 212 places, 519 transitions, 12467 flow [2022-01-19 04:09:23,490 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=12055, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=527, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=276, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=251, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12467, PETRI_PLACES=212, PETRI_TRANSITIONS=519} [2022-01-19 04:09:23,491 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 135 predicate places. [2022-01-19 04:09:23,491 INFO L470 AbstractCegarLoop]: Abstraction has has 212 places, 519 transitions, 12467 flow [2022-01-19 04:09:23,491 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.333333333333336) internal successors, (363), 9 states have internal predecessors, (363), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:23,491 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:09:23,491 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:09:23,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2022-01-19 04:09:23,491 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:09:23,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:09:23,492 INFO L85 PathProgramCache]: Analyzing trace with hash -208865600, now seen corresponding path program 1 times [2022-01-19 04:09:23,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:09:23,492 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607100702] [2022-01-19 04:09:23,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:09:23,492 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:09:23,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:09:23,564 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:09:23,564 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:09:23,564 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607100702] [2022-01-19 04:09:23,564 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607100702] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:09:23,564 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:09:23,564 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 04:09:23,565 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079098509] [2022-01-19 04:09:23,565 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:09:23,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 04:09:23,565 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:09:23,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 04:09:23,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-19 04:09:23,565 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 74 [2022-01-19 04:09:23,566 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 212 places, 519 transitions, 12467 flow. Second operand has 8 states, 8 states have (on average 40.625) internal successors, (325), 8 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:23,566 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:09:23,566 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 74 [2022-01-19 04:09:23,566 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:09:31,249 INFO L129 PetriNetUnfolder]: 19888/45539 cut-off events. [2022-01-19 04:09:31,250 INFO L130 PetriNetUnfolder]: For 622478/622478 co-relation queries the response was YES. [2022-01-19 04:09:31,720 INFO L84 FinitePrefix]: Finished finitePrefix Result has 208842 conditions, 45539 events. 19888/45539 cut-off events. For 622478/622478 co-relation queries the response was YES. Maximal size of possible extension queue 2927. Compared 558296 event pairs, 6121 based on Foata normal form. 9/45532 useless extension candidates. Maximal degree in co-relation 208665. Up to 20037 conditions per place. [2022-01-19 04:09:31,843 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 299 selfloop transitions, 284 changer transitions 13/626 dead transitions. [2022-01-19 04:09:31,843 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 221 places, 626 transitions, 14570 flow [2022-01-19 04:09:31,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 04:09:31,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 04:09:31,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 608 transitions. [2022-01-19 04:09:31,844 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6846846846846847 [2022-01-19 04:09:31,844 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 608 transitions. [2022-01-19 04:09:31,844 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 608 transitions. [2022-01-19 04:09:31,845 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:09:31,845 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 608 transitions. [2022-01-19 04:09:31,845 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 50.666666666666664) internal successors, (608), 12 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:31,846 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 74.0) internal successors, (962), 13 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:31,846 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 74.0) internal successors, (962), 13 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:31,846 INFO L186 Difference]: Start difference. First operand has 212 places, 519 transitions, 12467 flow. Second operand 12 states and 608 transitions. [2022-01-19 04:09:31,846 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 221 places, 626 transitions, 14570 flow [2022-01-19 04:09:42,185 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 212 places, 626 transitions, 13995 flow, removed 9 selfloop flow, removed 9 redundant places. [2022-01-19 04:09:42,195 INFO L242 Difference]: Finished difference. Result has 215 places, 535 transitions, 12905 flow [2022-01-19 04:09:42,195 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=11933, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=519, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=270, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=245, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12905, PETRI_PLACES=215, PETRI_TRANSITIONS=535} [2022-01-19 04:09:42,196 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 138 predicate places. [2022-01-19 04:09:42,196 INFO L470 AbstractCegarLoop]: Abstraction has has 215 places, 535 transitions, 12905 flow [2022-01-19 04:09:42,196 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.625) internal successors, (325), 8 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:42,196 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:09:42,196 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:09:42,196 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2022-01-19 04:09:42,196 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:09:42,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:09:42,197 INFO L85 PathProgramCache]: Analyzing trace with hash -2054870988, now seen corresponding path program 1 times [2022-01-19 04:09:42,197 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:09:42,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [201275773] [2022-01-19 04:09:42,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:09:42,197 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:09:42,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:09:42,268 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:09:42,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:09:42,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [201275773] [2022-01-19 04:09:42,268 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [201275773] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:09:42,268 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:09:42,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 04:09:42,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779954018] [2022-01-19 04:09:42,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:09:42,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 04:09:42,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:09:42,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 04:09:42,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-19 04:09:42,269 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 74 [2022-01-19 04:09:42,270 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 535 transitions, 12905 flow. Second operand has 8 states, 8 states have (on average 40.625) internal successors, (325), 8 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:42,270 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:09:42,270 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 74 [2022-01-19 04:09:42,270 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:09:50,219 INFO L129 PetriNetUnfolder]: 20020/45823 cut-off events. [2022-01-19 04:09:50,219 INFO L130 PetriNetUnfolder]: For 624409/624412 co-relation queries the response was YES. [2022-01-19 04:09:50,936 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210538 conditions, 45823 events. 20020/45823 cut-off events. For 624409/624412 co-relation queries the response was YES. Maximal size of possible extension queue 2920. Compared 561328 event pairs, 6184 based on Foata normal form. 9/45802 useless extension candidates. Maximal degree in co-relation 205667. Up to 19929 conditions per place. [2022-01-19 04:09:51,054 INFO L132 encePairwiseOnDemand]: 62/74 looper letters, 300 selfloop transitions, 289 changer transitions 13/632 dead transitions. [2022-01-19 04:09:51,054 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 226 places, 632 transitions, 14788 flow [2022-01-19 04:09:51,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 04:09:51,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 04:09:51,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 608 transitions. [2022-01-19 04:09:51,055 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6846846846846847 [2022-01-19 04:09:51,056 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 608 transitions. [2022-01-19 04:09:51,056 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 608 transitions. [2022-01-19 04:09:51,056 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:09:51,056 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 608 transitions. [2022-01-19 04:09:51,057 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 50.666666666666664) internal successors, (608), 12 states have internal predecessors, (608), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:51,057 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 74.0) internal successors, (962), 13 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:51,057 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 74.0) internal successors, (962), 13 states have internal predecessors, (962), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:09:51,057 INFO L186 Difference]: Start difference. First operand has 215 places, 535 transitions, 12905 flow. Second operand 12 states and 608 transitions. [2022-01-19 04:09:51,058 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 226 places, 632 transitions, 14788 flow [2022-01-19 04:10:02,137 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 219 places, 632 transitions, 14101 flow, removed 38 selfloop flow, removed 7 redundant places. [2022-01-19 04:10:02,147 INFO L242 Difference]: Finished difference. Result has 223 places, 542 transitions, 13015 flow [2022-01-19 04:10:02,147 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=12249, PETRI_DIFFERENCE_MINUEND_PLACES=208, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=535, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=279, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=250, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=13015, PETRI_PLACES=223, PETRI_TRANSITIONS=542} [2022-01-19 04:10:02,148 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 146 predicate places. [2022-01-19 04:10:02,148 INFO L470 AbstractCegarLoop]: Abstraction has has 223 places, 542 transitions, 13015 flow [2022-01-19 04:10:02,148 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.625) internal successors, (325), 8 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:02,148 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:02,148 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:10:02,148 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2022-01-19 04:10:02,148 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:10:02,148 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:02,148 INFO L85 PathProgramCache]: Analyzing trace with hash 1010383438, now seen corresponding path program 2 times [2022-01-19 04:10:02,148 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:02,149 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236958015] [2022-01-19 04:10:02,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:02,149 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:02,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:10:02,233 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:10:02,233 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:10:02,233 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236958015] [2022-01-19 04:10:02,233 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236958015] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:10:02,233 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:10:02,233 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 04:10:02,234 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [47528109] [2022-01-19 04:10:02,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:10:02,235 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 04:10:02,235 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:10:02,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 04:10:02,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-19 04:10:02,236 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 74 [2022-01-19 04:10:02,236 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 223 places, 542 transitions, 13015 flow. Second operand has 8 states, 8 states have (on average 40.625) internal successors, (325), 8 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:02,236 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:10:02,236 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 74 [2022-01-19 04:10:02,236 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:10:10,622 INFO L129 PetriNetUnfolder]: 20190/47251 cut-off events. [2022-01-19 04:10:10,622 INFO L130 PetriNetUnfolder]: For 640413/640413 co-relation queries the response was YES. [2022-01-19 04:10:11,282 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213677 conditions, 47251 events. 20190/47251 cut-off events. For 640413/640413 co-relation queries the response was YES. Maximal size of possible extension queue 3039. Compared 586282 event pairs, 4638 based on Foata normal form. 63/47300 useless extension candidates. Maximal degree in co-relation 213495. Up to 8369 conditions per place. [2022-01-19 04:10:11,393 INFO L132 encePairwiseOnDemand]: 59/74 looper letters, 273 selfloop transitions, 365 changer transitions 117/785 dead transitions. [2022-01-19 04:10:11,393 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 242 places, 785 transitions, 17342 flow [2022-01-19 04:10:11,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 04:10:11,393 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 04:10:11,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1025 transitions. [2022-01-19 04:10:11,402 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6925675675675675 [2022-01-19 04:10:11,402 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1025 transitions. [2022-01-19 04:10:11,402 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1025 transitions. [2022-01-19 04:10:11,402 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:10:11,402 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1025 transitions. [2022-01-19 04:10:11,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 51.25) internal successors, (1025), 20 states have internal predecessors, (1025), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:11,405 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 74.0) internal successors, (1554), 21 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:11,405 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 74.0) internal successors, (1554), 21 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:11,405 INFO L186 Difference]: Start difference. First operand has 223 places, 542 transitions, 13015 flow. Second operand 20 states and 1025 transitions. [2022-01-19 04:10:11,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 242 places, 785 transitions, 17342 flow [2022-01-19 04:10:23,560 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 236 places, 785 transitions, 16644 flow, removed 29 selfloop flow, removed 6 redundant places. [2022-01-19 04:10:23,571 INFO L242 Difference]: Finished difference. Result has 238 places, 511 transitions, 11902 flow [2022-01-19 04:10:23,572 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=12410, PETRI_DIFFERENCE_MINUEND_PLACES=217, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=541, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=313, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=226, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=11902, PETRI_PLACES=238, PETRI_TRANSITIONS=511} [2022-01-19 04:10:23,572 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 161 predicate places. [2022-01-19 04:10:23,572 INFO L470 AbstractCegarLoop]: Abstraction has has 238 places, 511 transitions, 11902 flow [2022-01-19 04:10:23,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.625) internal successors, (325), 8 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:23,572 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:23,573 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:10:23,573 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable28 [2022-01-19 04:10:23,573 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:10:23,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:23,573 INFO L85 PathProgramCache]: Analyzing trace with hash -1522482380, now seen corresponding path program 2 times [2022-01-19 04:10:23,573 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:23,573 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338412879] [2022-01-19 04:10:23,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:23,573 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:23,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:10:23,647 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:10:23,647 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:10:23,647 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1338412879] [2022-01-19 04:10:23,647 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1338412879] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:10:23,647 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:10:23,647 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 04:10:23,647 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [209969539] [2022-01-19 04:10:23,647 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:10:23,648 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 04:10:23,648 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:10:23,648 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 04:10:23,648 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2022-01-19 04:10:23,648 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 74 [2022-01-19 04:10:23,648 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 238 places, 511 transitions, 11902 flow. Second operand has 8 states, 8 states have (on average 40.625) internal successors, (325), 8 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:23,648 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:10:23,649 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 74 [2022-01-19 04:10:23,649 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:10:30,343 INFO L129 PetriNetUnfolder]: 15383/35605 cut-off events. [2022-01-19 04:10:30,344 INFO L130 PetriNetUnfolder]: For 471996/471996 co-relation queries the response was YES. [2022-01-19 04:10:31,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 163862 conditions, 35605 events. 15383/35605 cut-off events. For 471996/471996 co-relation queries the response was YES. Maximal size of possible extension queue 2130. Compared 417540 event pairs, 3015 based on Foata normal form. 90/35679 useless extension candidates. Maximal degree in co-relation 163678. Up to 6992 conditions per place. [2022-01-19 04:10:31,174 INFO L132 encePairwiseOnDemand]: 59/74 looper letters, 254 selfloop transitions, 337 changer transitions 116/737 dead transitions. [2022-01-19 04:10:31,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 254 places, 737 transitions, 16042 flow [2022-01-19 04:10:31,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-19 04:10:31,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2022-01-19 04:10:31,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 1002 transitions. [2022-01-19 04:10:31,176 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.677027027027027 [2022-01-19 04:10:31,176 INFO L72 ComplementDD]: Start complementDD. Operand 20 states and 1002 transitions. [2022-01-19 04:10:31,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 20 states and 1002 transitions. [2022-01-19 04:10:31,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:10:31,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 20 states and 1002 transitions. [2022-01-19 04:10:31,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 21 states, 20 states have (on average 50.1) internal successors, (1002), 20 states have internal predecessors, (1002), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:31,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 21 states, 21 states have (on average 74.0) internal successors, (1554), 21 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:31,179 INFO L81 ComplementDD]: Finished complementDD. Result has 21 states, 21 states have (on average 74.0) internal successors, (1554), 21 states have internal predecessors, (1554), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:31,180 INFO L186 Difference]: Start difference. First operand has 238 places, 511 transitions, 11902 flow. Second operand 20 states and 1002 transitions. [2022-01-19 04:10:31,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 254 places, 737 transitions, 16042 flow [2022-01-19 04:10:39,211 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 244 places, 737 transitions, 15719 flow, removed 61 selfloop flow, removed 10 redundant places. [2022-01-19 04:10:39,222 INFO L242 Difference]: Finished difference. Result has 248 places, 485 transitions, 11352 flow [2022-01-19 04:10:39,222 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=11605, PETRI_DIFFERENCE_MINUEND_PLACES=225, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=510, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=274, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=232, PETRI_DIFFERENCE_SUBTRAHEND_STATES=20, PETRI_FLOW=11352, PETRI_PLACES=248, PETRI_TRANSITIONS=485} [2022-01-19 04:10:39,223 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 171 predicate places. [2022-01-19 04:10:39,223 INFO L470 AbstractCegarLoop]: Abstraction has has 248 places, 485 transitions, 11352 flow [2022-01-19 04:10:39,223 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 40.625) internal successors, (325), 8 states have internal predecessors, (325), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:39,223 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:39,223 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:10:39,223 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2022-01-19 04:10:39,223 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:10:39,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:39,223 INFO L85 PathProgramCache]: Analyzing trace with hash 641750502, now seen corresponding path program 3 times [2022-01-19 04:10:39,224 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:39,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [657198087] [2022-01-19 04:10:39,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:39,224 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:39,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:10:39,247 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:10:39,247 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:10:39,247 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [657198087] [2022-01-19 04:10:39,247 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [657198087] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:10:39,247 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:10:39,247 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 04:10:39,248 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1257137057] [2022-01-19 04:10:39,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:10:39,248 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 04:10:39,248 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:10:39,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 04:10:39,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 04:10:39,248 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 53 out of 74 [2022-01-19 04:10:39,249 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 248 places, 485 transitions, 11352 flow. Second operand has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:39,249 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:10:39,249 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 53 of 74 [2022-01-19 04:10:39,249 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:10:39,682 INFO L129 PetriNetUnfolder]: 719/2524 cut-off events. [2022-01-19 04:10:39,683 INFO L130 PetriNetUnfolder]: For 32409/32437 co-relation queries the response was YES. [2022-01-19 04:10:39,703 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12906 conditions, 2524 events. 719/2524 cut-off events. For 32409/32437 co-relation queries the response was YES. Maximal size of possible extension queue 249. Compared 23223 event pairs, 146 based on Foata normal form. 316/2828 useless extension candidates. Maximal degree in co-relation 12784. Up to 612 conditions per place. [2022-01-19 04:10:39,712 INFO L132 encePairwiseOnDemand]: 68/74 looper letters, 17 selfloop transitions, 6 changer transitions 51/302 dead transitions. [2022-01-19 04:10:39,713 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 241 places, 302 transitions, 6311 flow [2022-01-19 04:10:39,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 04:10:39,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 04:10:39,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 186 transitions. [2022-01-19 04:10:39,714 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8378378378378378 [2022-01-19 04:10:39,714 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 186 transitions. [2022-01-19 04:10:39,714 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 186 transitions. [2022-01-19 04:10:39,714 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:10:39,714 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 186 transitions. [2022-01-19 04:10:39,714 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 62.0) internal successors, (186), 3 states have internal predecessors, (186), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:39,714 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:39,714 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 74.0) internal successors, (296), 4 states have internal predecessors, (296), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:39,715 INFO L186 Difference]: Start difference. First operand has 248 places, 485 transitions, 11352 flow. Second operand 3 states and 186 transitions. [2022-01-19 04:10:39,715 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 241 places, 302 transitions, 6311 flow [2022-01-19 04:10:39,813 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 211 places, 302 transitions, 5428 flow, removed 106 selfloop flow, removed 30 redundant places. [2022-01-19 04:10:39,817 INFO L242 Difference]: Finished difference. Result has 211 places, 244 transitions, 4068 flow [2022-01-19 04:10:39,818 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=5292, PETRI_DIFFERENCE_MINUEND_PLACES=209, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=288, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=4068, PETRI_PLACES=211, PETRI_TRANSITIONS=244} [2022-01-19 04:10:39,818 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 134 predicate places. [2022-01-19 04:10:39,818 INFO L470 AbstractCegarLoop]: Abstraction has has 211 places, 244 transitions, 4068 flow [2022-01-19 04:10:39,819 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 56.0) internal successors, (168), 3 states have internal predecessors, (168), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:39,819 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:39,819 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:10:39,819 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2022-01-19 04:10:39,819 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:10:39,819 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:39,819 INFO L85 PathProgramCache]: Analyzing trace with hash -1006390739, now seen corresponding path program 1 times [2022-01-19 04:10:39,819 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:39,819 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [376525934] [2022-01-19 04:10:39,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:39,819 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:39,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:10:39,900 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:10:39,900 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:10:39,901 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [376525934] [2022-01-19 04:10:39,901 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [376525934] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:10:39,901 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:10:39,901 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 04:10:39,901 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251099192] [2022-01-19 04:10:39,901 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:10:39,901 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 04:10:39,901 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:10:39,901 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 04:10:39,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 04:10:39,902 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 74 [2022-01-19 04:10:39,902 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 211 places, 244 transitions, 4068 flow. Second operand has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 9 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:39,902 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:10:39,902 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 74 [2022-01-19 04:10:39,902 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:10:40,412 INFO L129 PetriNetUnfolder]: 1003/2510 cut-off events. [2022-01-19 04:10:40,412 INFO L130 PetriNetUnfolder]: For 18484/18484 co-relation queries the response was YES. [2022-01-19 04:10:40,424 INFO L84 FinitePrefix]: Finished finitePrefix Result has 11756 conditions, 2510 events. 1003/2510 cut-off events. For 18484/18484 co-relation queries the response was YES. Maximal size of possible extension queue 218. Compared 19083 event pairs, 536 based on Foata normal form. 16/2509 useless extension candidates. Maximal degree in co-relation 11704. Up to 769 conditions per place. [2022-01-19 04:10:40,432 INFO L132 encePairwiseOnDemand]: 63/74 looper letters, 129 selfloop transitions, 75 changer transitions 53/287 dead transitions. [2022-01-19 04:10:40,432 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 205 places, 287 transitions, 4809 flow [2022-01-19 04:10:40,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 04:10:40,433 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 04:10:40,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 472 transitions. [2022-01-19 04:10:40,434 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6378378378378379 [2022-01-19 04:10:40,434 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 472 transitions. [2022-01-19 04:10:40,434 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 472 transitions. [2022-01-19 04:10:40,434 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:10:40,434 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 472 transitions. [2022-01-19 04:10:40,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 47.2) internal successors, (472), 10 states have internal predecessors, (472), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:40,435 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 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 04:10:40,436 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 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 04:10:40,436 INFO L186 Difference]: Start difference. First operand has 211 places, 244 transitions, 4068 flow. Second operand 10 states and 472 transitions. [2022-01-19 04:10:40,436 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 205 places, 287 transitions, 4809 flow [2022-01-19 04:10:40,474 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 194 places, 287 transitions, 4247 flow, removed 13 selfloop flow, removed 11 redundant places. [2022-01-19 04:10:40,477 INFO L242 Difference]: Finished difference. Result has 195 places, 212 transitions, 3168 flow [2022-01-19 04:10:40,478 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=3521, PETRI_DIFFERENCE_MINUEND_PLACES=185, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=244, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=75, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=169, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=3168, PETRI_PLACES=195, PETRI_TRANSITIONS=212} [2022-01-19 04:10:40,479 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 118 predicate places. [2022-01-19 04:10:40,479 INFO L470 AbstractCegarLoop]: Abstraction has has 195 places, 212 transitions, 3168 flow [2022-01-19 04:10:40,479 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 9 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:40,479 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:40,479 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:10:40,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31 [2022-01-19 04:10:40,479 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:10:40,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:40,480 INFO L85 PathProgramCache]: Analyzing trace with hash -1642770515, now seen corresponding path program 1 times [2022-01-19 04:10:40,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:40,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214348782] [2022-01-19 04:10:40,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:40,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:40,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:10:40,560 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:10:40,561 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:10:40,561 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1214348782] [2022-01-19 04:10:40,561 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1214348782] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:10:40,561 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:10:40,561 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 04:10:40,561 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013082345] [2022-01-19 04:10:40,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:10:40,562 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 04:10:40,562 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:10:40,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 04:10:40,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2022-01-19 04:10:40,563 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 74 [2022-01-19 04:10:40,563 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 195 places, 212 transitions, 3168 flow. Second operand has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 9 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:40,563 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:10:40,563 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 74 [2022-01-19 04:10:40,563 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:10:40,982 INFO L129 PetriNetUnfolder]: 833/2162 cut-off events. [2022-01-19 04:10:40,982 INFO L130 PetriNetUnfolder]: For 13244/13244 co-relation queries the response was YES. [2022-01-19 04:10:40,994 INFO L84 FinitePrefix]: Finished finitePrefix Result has 9267 conditions, 2162 events. 833/2162 cut-off events. For 13244/13244 co-relation queries the response was YES. Maximal size of possible extension queue 209. Compared 16402 event pairs, 460 based on Foata normal form. 16/2163 useless extension candidates. Maximal degree in co-relation 9218. Up to 545 conditions per place. [2022-01-19 04:10:40,999 INFO L132 encePairwiseOnDemand]: 63/74 looper letters, 88 selfloop transitions, 46 changer transitions 84/248 dead transitions. [2022-01-19 04:10:41,000 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 199 places, 248 transitions, 3728 flow [2022-01-19 04:10:41,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 04:10:41,000 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 04:10:41,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 464 transitions. [2022-01-19 04:10:41,001 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6270270270270271 [2022-01-19 04:10:41,001 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 464 transitions. [2022-01-19 04:10:41,001 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 464 transitions. [2022-01-19 04:10:41,001 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:10:41,001 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 464 transitions. [2022-01-19 04:10:41,001 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 46.4) internal successors, (464), 10 states have internal predecessors, (464), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,005 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 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 04:10:41,005 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 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 04:10:41,005 INFO L186 Difference]: Start difference. First operand has 195 places, 212 transitions, 3168 flow. Second operand 10 states and 464 transitions. [2022-01-19 04:10:41,005 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 199 places, 248 transitions, 3728 flow [2022-01-19 04:10:41,037 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 188 places, 248 transitions, 3509 flow, removed 6 selfloop flow, removed 11 redundant places. [2022-01-19 04:10:41,040 INFO L242 Difference]: Finished difference. Result has 189 places, 153 transitions, 1947 flow [2022-01-19 04:10:41,040 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=2949, PETRI_DIFFERENCE_MINUEND_PLACES=179, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=212, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=46, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1947, PETRI_PLACES=189, PETRI_TRANSITIONS=153} [2022-01-19 04:10:41,041 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 112 predicate places. [2022-01-19 04:10:41,041 INFO L470 AbstractCegarLoop]: Abstraction has has 189 places, 153 transitions, 1947 flow [2022-01-19 04:10:41,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 9 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,041 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:41,041 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:10:41,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32 [2022-01-19 04:10:41,041 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:10:41,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:41,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1256609315, now seen corresponding path program 2 times [2022-01-19 04:10:41,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:41,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314044356] [2022-01-19 04:10:41,042 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:41,042 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:41,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:10:41,126 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:10:41,127 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:10:41,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314044356] [2022-01-19 04:10:41,127 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314044356] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:10:41,127 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:10:41,127 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 04:10:41,127 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1310393487] [2022-01-19 04:10:41,127 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:10:41,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 04:10:41,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:10:41,128 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 04:10:41,128 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 04:10:41,128 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 74 [2022-01-19 04:10:41,129 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 189 places, 153 transitions, 1947 flow. Second operand has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 9 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,129 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:10:41,129 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 74 [2022-01-19 04:10:41,129 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:10:41,420 INFO L129 PetriNetUnfolder]: 496/1253 cut-off events. [2022-01-19 04:10:41,420 INFO L130 PetriNetUnfolder]: For 7511/7511 co-relation queries the response was YES. [2022-01-19 04:10:41,427 INFO L84 FinitePrefix]: Finished finitePrefix Result has 5349 conditions, 1253 events. 496/1253 cut-off events. For 7511/7511 co-relation queries the response was YES. Maximal size of possible extension queue 112. Compared 7785 event pairs, 259 based on Foata normal form. 16/1254 useless extension candidates. Maximal degree in co-relation 5302. Up to 466 conditions per place. [2022-01-19 04:10:41,430 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 69 selfloop transitions, 29 changer transitions 48/176 dead transitions. [2022-01-19 04:10:41,430 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 178 places, 176 transitions, 2309 flow [2022-01-19 04:10:41,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 04:10:41,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 04:10:41,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 445 transitions. [2022-01-19 04:10:41,431 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6013513513513513 [2022-01-19 04:10:41,431 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 445 transitions. [2022-01-19 04:10:41,431 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 445 transitions. [2022-01-19 04:10:41,431 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:10:41,431 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 445 transitions. [2022-01-19 04:10:41,432 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 44.5) internal successors, (445), 10 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,432 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 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 04:10:41,433 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 74.0) internal successors, (814), 11 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 04:10:41,433 INFO L186 Difference]: Start difference. First operand has 189 places, 153 transitions, 1947 flow. Second operand 10 states and 445 transitions. [2022-01-19 04:10:41,433 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 178 places, 176 transitions, 2309 flow [2022-01-19 04:10:41,445 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 155 places, 176 transitions, 1956 flow, removed 29 selfloop flow, removed 23 redundant places. [2022-01-19 04:10:41,447 INFO L242 Difference]: Finished difference. Result has 156 places, 127 transitions, 1348 flow [2022-01-19 04:10:41,447 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=1594, PETRI_DIFFERENCE_MINUEND_PLACES=146, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=153, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=29, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=1348, PETRI_PLACES=156, PETRI_TRANSITIONS=127} [2022-01-19 04:10:41,448 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 79 predicate places. [2022-01-19 04:10:41,448 INFO L470 AbstractCegarLoop]: Abstraction has has 156 places, 127 transitions, 1348 flow [2022-01-19 04:10:41,448 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 9 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,448 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:41,448 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:10:41,448 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33 [2022-01-19 04:10:41,448 INFO L402 AbstractCegarLoop]: === Iteration 26 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-19 04:10:41,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:41,448 INFO L85 PathProgramCache]: Analyzing trace with hash 690251377, now seen corresponding path program 1 times [2022-01-19 04:10:41,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:41,449 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1075686414] [2022-01-19 04:10:41,449 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:41,449 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:41,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:10:41,521 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:10:41,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:10:41,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1075686414] [2022-01-19 04:10:41,522 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1075686414] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:10:41,522 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:10:41,522 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 04:10:41,522 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247599998] [2022-01-19 04:10:41,522 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:10:41,522 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 04:10:41,522 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:10:41,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 04:10:41,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 04:10:41,523 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 38 out of 74 [2022-01-19 04:10:41,523 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 156 places, 127 transitions, 1348 flow. Second operand has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 9 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,523 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:10:41,523 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 38 of 74 [2022-01-19 04:10:41,523 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:10:41,736 INFO L129 PetriNetUnfolder]: 341/948 cut-off events. [2022-01-19 04:10:41,737 INFO L130 PetriNetUnfolder]: For 3320/3320 co-relation queries the response was YES. [2022-01-19 04:10:41,740 INFO L84 FinitePrefix]: Finished finitePrefix Result has 3417 conditions, 948 events. 341/948 cut-off events. For 3320/3320 co-relation queries the response was YES. Maximal size of possible extension queue 111. Compared 6043 event pairs, 205 based on Foata normal form. 16/949 useless extension candidates. Maximal degree in co-relation 3381. Up to 413 conditions per place. [2022-01-19 04:10:41,741 INFO L132 encePairwiseOnDemand]: 64/74 looper letters, 0 selfloop transitions, 0 changer transitions 141/141 dead transitions. [2022-01-19 04:10:41,741 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 153 places, 141 transitions, 1573 flow [2022-01-19 04:10:41,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 04:10:41,742 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 04:10:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 392 transitions. [2022-01-19 04:10:41,742 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5885885885885885 [2022-01-19 04:10:41,742 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 392 transitions. [2022-01-19 04:10:41,742 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 392 transitions. [2022-01-19 04:10:41,742 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:10:41,742 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 392 transitions. [2022-01-19 04:10:41,743 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 43.55555555555556) internal successors, (392), 9 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,743 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,744 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 74.0) internal successors, (740), 10 states have internal predecessors, (740), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,744 INFO L186 Difference]: Start difference. First operand has 156 places, 127 transitions, 1348 flow. Second operand 9 states and 392 transitions. [2022-01-19 04:10:41,744 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 153 places, 141 transitions, 1573 flow [2022-01-19 04:10:41,750 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 137 places, 141 transitions, 1298 flow, removed 0 selfloop flow, removed 16 redundant places. [2022-01-19 04:10:41,751 INFO L242 Difference]: Finished difference. Result has 137 places, 0 transitions, 0 flow [2022-01-19 04:10:41,751 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=74, PETRI_DIFFERENCE_MINUEND_FLOW=1024, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=124, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=124, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=0, PETRI_PLACES=137, PETRI_TRANSITIONS=0} [2022-01-19 04:10:41,751 INFO L334 CegarLoopForPetriNet]: 77 programPoint places, 60 predicate places. [2022-01-19 04:10:41,751 INFO L470 AbstractCegarLoop]: Abstraction has has 137 places, 0 transitions, 0 flow [2022-01-19 04:10:41,751 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 40.44444444444444) internal successors, (364), 9 states have internal predecessors, (364), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 04:10:41,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2022-01-19 04:10:41,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 4 remaining) [2022-01-19 04:10:41,752 INFO L764 garLoopResultBuilder]: Registering result SAFE for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2022-01-19 04:10:41,752 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable34 [2022-01-19 04:10:41,752 INFO L732 BasicCegarLoop]: Path program histogram: [4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1] [2022-01-19 04:10:41,752 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE,SAFE,SAFE,SAFE (1/2) [2022-01-19 04:10:41,753 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 04:10:41,754 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 04:10:41,754 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 04:10:41,754 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 77 places, 74 transitions, 169 flow [2022-01-19 04:10:41,759 INFO L129 PetriNetUnfolder]: 7/111 cut-off events. [2022-01-19 04:10:41,759 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 04:10:41,759 INFO L84 FinitePrefix]: Finished finitePrefix Result has 127 conditions, 111 events. 7/111 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 231 event pairs, 0 based on Foata normal form. 0/97 useless extension candidates. Maximal degree in co-relation 87. Up to 8 conditions per place. [2022-01-19 04:10:41,759 INFO L82 GeneralOperation]: Start removeDead. Operand has 77 places, 74 transitions, 169 flow [2022-01-19 04:10:41,760 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 77 places, 74 transitions, 169 flow [2022-01-19 04:10:41,763 INFO L129 PetriNetUnfolder]: 6/106 cut-off events. [2022-01-19 04:10:41,764 INFO L130 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-01-19 04:10:41,764 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:41,764 INFO L254 CegarLoopForPetriNet]: trace histogram [4, 4, 4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:10:41,764 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0INUSE_VIOLATION] === [2022-01-19 04:10:41,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:41,764 INFO L85 PathProgramCache]: Analyzing trace with hash 670576747, now seen corresponding path program 1 times [2022-01-19 04:10:41,764 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:41,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936901789] [2022-01-19 04:10:41,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:41,764 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:41,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 04:10:41,770 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-19 04:10:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-19 04:10:41,776 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-19 04:10:41,776 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-19 04:10:41,776 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-19 04:10:41,776 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable35 [2022-01-19 04:10:41,777 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-01-19 04:10:41,777 INFO L309 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2022-01-19 04:10:41,777 WARN L235 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-19 04:10:41,777 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2022-01-19 04:10:41,783 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,784 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,785 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,786 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,787 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,788 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,789 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,790 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,791 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#in~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,792 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,793 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,794 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,795 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~v~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_~arg#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 WARN L322 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 04:10:41,796 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 04:10:41,797 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 04:10:41,797 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 04:10:41,797 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-19 04:10:41,798 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 93 places, 89 transitions, 210 flow [2022-01-19 04:10:41,803 INFO L129 PetriNetUnfolder]: 9/139 cut-off events. [2022-01-19 04:10:41,803 INFO L130 PetriNetUnfolder]: For 16/16 co-relation queries the response was YES. [2022-01-19 04:10:41,804 INFO L84 FinitePrefix]: Finished finitePrefix Result has 162 conditions, 139 events. 9/139 cut-off events. For 16/16 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 297 event pairs, 0 based on Foata normal form. 0/121 useless extension candidates. Maximal degree in co-relation 119. Up to 10 conditions per place. [2022-01-19 04:10:41,804 INFO L82 GeneralOperation]: Start removeDead. Operand has 93 places, 89 transitions, 210 flow [2022-01-19 04:10:41,805 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 93 places, 89 transitions, 210 flow [2022-01-19 04:10:41,806 INFO L129 PetriNetUnfolder]: 2/53 cut-off events. [2022-01-19 04:10:41,806 INFO L130 PetriNetUnfolder]: For 1/1 co-relation queries the response was YES. [2022-01-19 04:10:41,806 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:41,806 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] [2022-01-19 04:10:41,807 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 04:10:41,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:41,807 INFO L85 PathProgramCache]: Analyzing trace with hash -781406249, now seen corresponding path program 1 times [2022-01-19 04:10:41,807 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:41,807 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [912092357] [2022-01-19 04:10:41,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:41,807 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:41,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:10:41,836 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 04:10:41,836 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:10:41,837 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [912092357] [2022-01-19 04:10:41,837 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [912092357] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:10:41,837 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:10:41,837 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:10:41,837 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992651867] [2022-01-19 04:10:41,837 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:10:41,837 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 04:10:41,837 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:10:41,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 04:10:41,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 04:10:41,838 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2022-01-19 04:10:41,838 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 93 places, 89 transitions, 210 flow. Second operand has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:41,838 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:10:41,838 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2022-01-19 04:10:41,838 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:10:45,662 INFO L129 PetriNetUnfolder]: 44351/70797 cut-off events. [2022-01-19 04:10:45,663 INFO L130 PetriNetUnfolder]: For 15385/15385 co-relation queries the response was YES. [2022-01-19 04:10:45,943 INFO L84 FinitePrefix]: Finished finitePrefix Result has 139247 conditions, 70797 events. 44351/70797 cut-off events. For 15385/15385 co-relation queries the response was YES. Maximal size of possible extension queue 3210. Compared 618952 event pairs, 21629 based on Foata normal form. 17293/74856 useless extension candidates. Maximal degree in co-relation 58478. Up to 30317 conditions per place. [2022-01-19 04:10:46,226 INFO L132 encePairwiseOnDemand]: 75/89 looper letters, 126 selfloop transitions, 15 changer transitions 0/181 dead transitions. [2022-01-19 04:10:46,227 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 92 places, 181 transitions, 750 flow [2022-01-19 04:10:46,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 04:10:46,227 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 04:10:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 429 transitions. [2022-01-19 04:10:46,228 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8033707865168539 [2022-01-19 04:10:46,228 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 429 transitions. [2022-01-19 04:10:46,228 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 429 transitions. [2022-01-19 04:10:46,228 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:10:46,228 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 429 transitions. [2022-01-19 04:10:46,228 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 71.5) internal successors, (429), 6 states have internal predecessors, (429), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:46,229 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:46,229 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:46,229 INFO L186 Difference]: Start difference. First operand has 93 places, 89 transitions, 210 flow. Second operand 6 states and 429 transitions. [2022-01-19 04:10:46,229 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 92 places, 181 transitions, 750 flow [2022-01-19 04:10:46,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 181 transitions, 714 flow, removed 18 selfloop flow, removed 0 redundant places. [2022-01-19 04:10:46,233 INFO L242 Difference]: Finished difference. Result has 96 places, 98 transitions, 302 flow [2022-01-19 04:10:46,233 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=184, PETRI_DIFFERENCE_MINUEND_PLACES=87, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=82, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=75, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=302, PETRI_PLACES=96, PETRI_TRANSITIONS=98} [2022-01-19 04:10:46,233 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 3 predicate places. [2022-01-19 04:10:46,233 INFO L470 AbstractCegarLoop]: Abstraction has has 96 places, 98 transitions, 302 flow [2022-01-19 04:10:46,234 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.8) internal successors, (234), 5 states have internal predecessors, (234), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:46,234 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:46,234 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:10:46,234 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36 [2022-01-19 04:10:46,234 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 04:10:46,234 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:46,234 INFO L85 PathProgramCache]: Analyzing trace with hash 1373759277, now seen corresponding path program 1 times [2022-01-19 04:10:46,234 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:46,234 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1083245363] [2022-01-19 04:10:46,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:46,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:46,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:10:46,267 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:10:46,267 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:10:46,267 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1083245363] [2022-01-19 04:10:46,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1083245363] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:10:46,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:10:46,267 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:10:46,267 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [695723987] [2022-01-19 04:10:46,267 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:10:46,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 04:10:46,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:10:46,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 04:10:46,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 04:10:46,268 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2022-01-19 04:10:46,268 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 96 places, 98 transitions, 302 flow. Second operand has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:46,268 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:10:46,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2022-01-19 04:10:46,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:10:53,128 INFO L129 PetriNetUnfolder]: 69435/112976 cut-off events. [2022-01-19 04:10:53,129 INFO L130 PetriNetUnfolder]: For 39628/39694 co-relation queries the response was YES. [2022-01-19 04:10:53,873 INFO L84 FinitePrefix]: Finished finitePrefix Result has 249371 conditions, 112976 events. 69435/112976 cut-off events. For 39628/39694 co-relation queries the response was YES. Maximal size of possible extension queue 4671. Compared 1078983 event pairs, 26947 based on Foata normal form. 66/102479 useless extension candidates. Maximal degree in co-relation 249277. Up to 51002 conditions per place. [2022-01-19 04:10:54,354 INFO L132 encePairwiseOnDemand]: 81/89 looper letters, 137 selfloop transitions, 25 changer transitions 0/203 dead transitions. [2022-01-19 04:10:54,354 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 101 places, 203 transitions, 975 flow [2022-01-19 04:10:54,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 04:10:54,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 04:10:54,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 411 transitions. [2022-01-19 04:10:54,355 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7696629213483146 [2022-01-19 04:10:54,355 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 411 transitions. [2022-01-19 04:10:54,355 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 411 transitions. [2022-01-19 04:10:54,355 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:10:54,355 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 411 transitions. [2022-01-19 04:10:54,356 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.5) internal successors, (411), 6 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:54,356 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:54,356 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:54,356 INFO L186 Difference]: Start difference. First operand has 96 places, 98 transitions, 302 flow. Second operand 6 states and 411 transitions. [2022-01-19 04:10:54,356 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 101 places, 203 transitions, 975 flow [2022-01-19 04:10:54,623 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 101 places, 203 transitions, 975 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 04:10:54,624 INFO L242 Difference]: Finished difference. Result has 103 places, 114 transitions, 473 flow [2022-01-19 04:10:54,625 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=302, PETRI_DIFFERENCE_MINUEND_PLACES=96, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=79, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=473, PETRI_PLACES=103, PETRI_TRANSITIONS=114} [2022-01-19 04:10:54,625 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 10 predicate places. [2022-01-19 04:10:54,625 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 114 transitions, 473 flow [2022-01-19 04:10:54,625 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.0) internal successors, (235), 5 states have internal predecessors, (235), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:54,625 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:10:54,625 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:10:54,625 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable37 [2022-01-19 04:10:54,625 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 04:10:54,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:10:54,626 INFO L85 PathProgramCache]: Analyzing trace with hash -2119532954, now seen corresponding path program 1 times [2022-01-19 04:10:54,626 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:10:54,626 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707596685] [2022-01-19 04:10:54,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:10:54,626 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:10:54,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:10:54,678 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:10:54,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:10:54,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707596685] [2022-01-19 04:10:54,678 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707596685] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:10:54,678 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:10:54,678 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:10:54,678 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1862841029] [2022-01-19 04:10:54,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:10:54,679 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:10:54,679 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:10:54,679 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:10:54,679 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:10:54,679 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 89 [2022-01-19 04:10:54,680 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 114 transitions, 473 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:10:54,680 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:10:54,680 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 89 [2022-01-19 04:10:54,680 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:11:02,699 INFO L129 PetriNetUnfolder]: 73221/118455 cut-off events. [2022-01-19 04:11:02,699 INFO L130 PetriNetUnfolder]: For 79723/79723 co-relation queries the response was YES. [2022-01-19 04:11:03,358 INFO L84 FinitePrefix]: Finished finitePrefix Result has 279994 conditions, 118455 events. 73221/118455 cut-off events. For 79723/79723 co-relation queries the response was YES. Maximal size of possible extension queue 5044. Compared 1129141 event pairs, 35299 based on Foata normal form. 1727/111918 useless extension candidates. Maximal degree in co-relation 264268. Up to 48918 conditions per place. [2022-01-19 04:11:04,009 INFO L132 encePairwiseOnDemand]: 76/89 looper letters, 199 selfloop transitions, 29 changer transitions 0/267 dead transitions. [2022-01-19 04:11:04,009 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 111 places, 267 transitions, 1398 flow [2022-01-19 04:11:04,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 04:11:04,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 04:11:04,010 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 617 transitions. [2022-01-19 04:11:04,010 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7702871410736579 [2022-01-19 04:11:04,010 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 617 transitions. [2022-01-19 04:11:04,010 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 617 transitions. [2022-01-19 04:11:04,010 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:11:04,010 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 617 transitions. [2022-01-19 04:11:04,011 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 68.55555555555556) internal successors, (617), 9 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:04,012 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:04,012 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:04,012 INFO L186 Difference]: Start difference. First operand has 103 places, 114 transitions, 473 flow. Second operand 9 states and 617 transitions. [2022-01-19 04:11:04,012 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 111 places, 267 transitions, 1398 flow [2022-01-19 04:11:04,159 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 267 transitions, 1398 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 04:11:04,160 INFO L242 Difference]: Finished difference. Result has 115 places, 121 transitions, 618 flow [2022-01-19 04:11:04,161 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=473, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=114, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=88, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=618, PETRI_PLACES=115, PETRI_TRANSITIONS=121} [2022-01-19 04:11:04,161 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 22 predicate places. [2022-01-19 04:11:04,161 INFO L470 AbstractCegarLoop]: Abstraction has has 115 places, 121 transitions, 618 flow [2022-01-19 04:11:04,161 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:04,161 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:11:04,161 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:11:04,161 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable38 [2022-01-19 04:11:04,162 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 04:11:04,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:11:04,162 INFO L85 PathProgramCache]: Analyzing trace with hash 963575820, now seen corresponding path program 2 times [2022-01-19 04:11:04,162 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:11:04,162 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1411366566] [2022-01-19 04:11:04,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:11:04,162 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:11:04,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:11:04,202 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:11:04,202 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:11:04,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1411366566] [2022-01-19 04:11:04,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1411366566] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:11:04,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:11:04,202 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:11:04,202 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1283332365] [2022-01-19 04:11:04,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:11:04,203 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:11:04,203 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:11:04,204 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:11:04,204 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:11:04,204 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 89 [2022-01-19 04:11:04,204 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 121 transitions, 618 flow. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:04,204 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:11:04,204 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 89 [2022-01-19 04:11:04,204 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:11:16,685 INFO L129 PetriNetUnfolder]: 104863/172589 cut-off events. [2022-01-19 04:11:16,685 INFO L130 PetriNetUnfolder]: For 217742/217742 co-relation queries the response was YES. [2022-01-19 04:11:17,785 INFO L84 FinitePrefix]: Finished finitePrefix Result has 442745 conditions, 172589 events. 104863/172589 cut-off events. For 217742/217742 co-relation queries the response was YES. Maximal size of possible extension queue 7492. Compared 1749827 event pairs, 56483 based on Foata normal form. 666/161019 useless extension candidates. Maximal degree in co-relation 386088. Up to 101140 conditions per place. [2022-01-19 04:11:18,752 INFO L132 encePairwiseOnDemand]: 78/89 looper letters, 191 selfloop transitions, 37 changer transitions 0/267 dead transitions. [2022-01-19 04:11:18,753 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 122 places, 267 transitions, 1684 flow [2022-01-19 04:11:18,753 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 04:11:18,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 04:11:18,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 549 transitions. [2022-01-19 04:11:18,754 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7710674157303371 [2022-01-19 04:11:18,754 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 549 transitions. [2022-01-19 04:11:18,754 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 549 transitions. [2022-01-19 04:11:18,754 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:11:18,754 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 549 transitions. [2022-01-19 04:11:18,755 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.625) internal successors, (549), 8 states have internal predecessors, (549), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:18,755 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:18,755 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:18,756 INFO L186 Difference]: Start difference. First operand has 115 places, 121 transitions, 618 flow. Second operand 8 states and 549 transitions. [2022-01-19 04:11:18,756 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 122 places, 267 transitions, 1684 flow [2022-01-19 04:11:21,674 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 267 transitions, 1618 flow, removed 7 selfloop flow, removed 4 redundant places. [2022-01-19 04:11:21,676 INFO L242 Difference]: Finished difference. Result has 122 places, 144 transitions, 909 flow [2022-01-19 04:11:21,677 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=572, PETRI_DIFFERENCE_MINUEND_PLACES=111, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=121, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=91, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=909, PETRI_PLACES=122, PETRI_TRANSITIONS=144} [2022-01-19 04:11:21,681 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 29 predicate places. [2022-01-19 04:11:21,681 INFO L470 AbstractCegarLoop]: Abstraction has has 122 places, 144 transitions, 909 flow [2022-01-19 04:11:21,681 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:21,681 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:11:21,681 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:11:21,681 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable39 [2022-01-19 04:11:21,681 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 04:11:21,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:11:21,681 INFO L85 PathProgramCache]: Analyzing trace with hash -448877904, now seen corresponding path program 3 times [2022-01-19 04:11:21,682 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:11:21,682 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1189249549] [2022-01-19 04:11:21,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:11:21,682 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:11:21,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:11:21,814 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:11:21,814 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:11:21,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1189249549] [2022-01-19 04:11:21,815 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1189249549] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:11:21,815 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:11:21,815 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:11:21,815 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1633232231] [2022-01-19 04:11:21,815 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:11:21,815 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:11:21,815 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:11:21,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:11:21,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:11:21,816 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 89 [2022-01-19 04:11:21,816 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 144 transitions, 909 flow. Second operand has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:21,816 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:11:21,816 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 89 [2022-01-19 04:11:21,816 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:11:42,335 INFO L129 PetriNetUnfolder]: 150309/249440 cut-off events. [2022-01-19 04:11:42,335 INFO L130 PetriNetUnfolder]: For 403788/403788 co-relation queries the response was YES. [2022-01-19 04:11:44,359 INFO L84 FinitePrefix]: Finished finitePrefix Result has 665885 conditions, 249440 events. 150309/249440 cut-off events. For 403788/403788 co-relation queries the response was YES. Maximal size of possible extension queue 11089. Compared 2685073 event pairs, 71624 based on Foata normal form. 666/233157 useless extension candidates. Maximal degree in co-relation 665764. Up to 130035 conditions per place. [2022-01-19 04:11:45,531 INFO L132 encePairwiseOnDemand]: 78/89 looper letters, 205 selfloop transitions, 53 changer transitions 0/297 dead transitions. [2022-01-19 04:11:45,531 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 297 transitions, 2186 flow [2022-01-19 04:11:45,532 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 04:11:45,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 04:11:45,533 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 544 transitions. [2022-01-19 04:11:45,533 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7640449438202247 [2022-01-19 04:11:45,533 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 544 transitions. [2022-01-19 04:11:45,533 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 544 transitions. [2022-01-19 04:11:45,533 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:11:45,533 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 544 transitions. [2022-01-19 04:11:45,534 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 68.0) internal successors, (544), 8 states have internal predecessors, (544), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:45,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:45,535 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 89.0) internal successors, (801), 9 states have internal predecessors, (801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:11:45,535 INFO L186 Difference]: Start difference. First operand has 122 places, 144 transitions, 909 flow. Second operand 8 states and 544 transitions. [2022-01-19 04:11:45,535 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 297 transitions, 2186 flow [2022-01-19 04:12:03,358 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 127 places, 297 transitions, 2159 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-01-19 04:12:03,360 INFO L242 Difference]: Finished difference. Result has 131 places, 178 transitions, 1482 flow [2022-01-19 04:12:03,361 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=888, PETRI_DIFFERENCE_MINUEND_PLACES=120, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=144, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=20, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=1482, PETRI_PLACES=131, PETRI_TRANSITIONS=178} [2022-01-19 04:12:03,361 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 38 predicate places. [2022-01-19 04:12:03,361 INFO L470 AbstractCegarLoop]: Abstraction has has 131 places, 178 transitions, 1482 flow [2022-01-19 04:12:03,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 46.5) internal successors, (279), 6 states have internal predecessors, (279), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:12:03,361 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:12:03,361 INFO L254 CegarLoopForPetriNet]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:12:03,361 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40 [2022-01-19 04:12:03,361 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 04:12:03,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:12:03,362 INFO L85 PathProgramCache]: Analyzing trace with hash 369901836, now seen corresponding path program 4 times [2022-01-19 04:12:03,362 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:12:03,362 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1575954686] [2022-01-19 04:12:03,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:12:03,362 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:12:03,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:12:03,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-19 04:12:03,422 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:12:03,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1575954686] [2022-01-19 04:12:03,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1575954686] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:12:03,422 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:12:03,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:12:03,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1336637251] [2022-01-19 04:12:03,422 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:12:03,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:12:03,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:12:03,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:12:03,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:12:03,424 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 89 [2022-01-19 04:12:03,424 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 131 places, 178 transitions, 1482 flow. Second operand has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:12:03,424 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:12:03,424 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 89 [2022-01-19 04:12:03,425 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:12:23,798 INFO L129 PetriNetUnfolder]: 146289/245663 cut-off events. [2022-01-19 04:12:23,798 INFO L130 PetriNetUnfolder]: For 537343/537343 co-relation queries the response was YES. [2022-01-19 04:12:25,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 683794 conditions, 245663 events. 146289/245663 cut-off events. For 537343/537343 co-relation queries the response was YES. Maximal size of possible extension queue 10874. Compared 2685867 event pairs, 35730 based on Foata normal form. 3941/231711 useless extension candidates. Maximal degree in co-relation 683666. Up to 82801 conditions per place. [2022-01-19 04:12:27,069 INFO L132 encePairwiseOnDemand]: 74/89 looper letters, 289 selfloop transitions, 113 changer transitions 0/441 dead transitions. [2022-01-19 04:12:27,069 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 144 places, 441 transitions, 3312 flow [2022-01-19 04:12:27,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-01-19 04:12:27,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2022-01-19 04:12:27,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 953 transitions. [2022-01-19 04:12:27,070 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7648475120385233 [2022-01-19 04:12:27,071 INFO L72 ComplementDD]: Start complementDD. Operand 14 states and 953 transitions. [2022-01-19 04:12:27,071 INFO L73 IsDeterministic]: Start isDeterministic. Operand 14 states and 953 transitions. [2022-01-19 04:12:27,071 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:12:27,071 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 14 states and 953 transitions. [2022-01-19 04:12:27,072 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 15 states, 14 states have (on average 68.07142857142857) internal successors, (953), 14 states have internal predecessors, (953), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:12:27,073 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 15 states, 15 states have (on average 89.0) internal successors, (1335), 15 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:12:27,073 INFO L81 ComplementDD]: Finished complementDD. Result has 15 states, 15 states have (on average 89.0) internal successors, (1335), 15 states have internal predecessors, (1335), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:12:27,073 INFO L186 Difference]: Start difference. First operand has 131 places, 178 transitions, 1482 flow. Second operand 14 states and 953 transitions. [2022-01-19 04:12:27,073 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 144 places, 441 transitions, 3312 flow [2022-01-19 04:13:01,443 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 142 places, 441 transitions, 3285 flow, removed 1 selfloop flow, removed 2 redundant places. [2022-01-19 04:13:01,446 INFO L242 Difference]: Finished difference. Result has 147 places, 204 transitions, 2097 flow [2022-01-19 04:13:01,447 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=1455, PETRI_DIFFERENCE_MINUEND_PLACES=129, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=178, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=88, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=86, PETRI_DIFFERENCE_SUBTRAHEND_STATES=14, PETRI_FLOW=2097, PETRI_PLACES=147, PETRI_TRANSITIONS=204} [2022-01-19 04:13:01,447 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 54 predicate places. [2022-01-19 04:13:01,447 INFO L470 AbstractCegarLoop]: Abstraction has has 147 places, 204 transitions, 2097 flow [2022-01-19 04:13:01,447 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.142857142857146) internal successors, (323), 7 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:13:01,447 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:13:01,447 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:13:01,447 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable41 [2022-01-19 04:13:01,448 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 04:13:01,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:13:01,448 INFO L85 PathProgramCache]: Analyzing trace with hash 637363224, now seen corresponding path program 1 times [2022-01-19 04:13:01,448 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:13:01,448 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [281450341] [2022-01-19 04:13:01,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:13:01,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:13:01,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:13:01,482 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:13:01,483 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:13:01,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [281450341] [2022-01-19 04:13:01,483 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [281450341] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:13:01,483 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:13:01,483 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-19 04:13:01,483 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [402663092] [2022-01-19 04:13:01,483 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:13:01,483 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 04:13:01,483 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:13:01,484 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 04:13:01,484 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 04:13:01,484 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 45 out of 89 [2022-01-19 04:13:01,484 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 204 transitions, 2097 flow. Second operand has 5 states, 5 states have (on average 47.2) internal successors, (236), 5 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:13:01,484 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:13:01,484 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 45 of 89 [2022-01-19 04:13:01,484 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:13:39,019 INFO L129 PetriNetUnfolder]: 223062/376055 cut-off events. [2022-01-19 04:13:39,020 INFO L130 PetriNetUnfolder]: For 1246278/1246531 co-relation queries the response was YES. [2022-01-19 04:13:42,707 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1167519 conditions, 376055 events. 223062/376055 cut-off events. For 1246278/1246531 co-relation queries the response was YES. Maximal size of possible extension queue 15755. Compared 4283764 event pairs, 94122 based on Foata normal form. 118/348077 useless extension candidates. Maximal degree in co-relation 1167393. Up to 157829 conditions per place. [2022-01-19 04:13:44,726 INFO L132 encePairwiseOnDemand]: 81/89 looper letters, 283 selfloop transitions, 80 changer transitions 0/412 dead transitions. [2022-01-19 04:13:44,727 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 152 places, 412 transitions, 5053 flow [2022-01-19 04:13:44,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-19 04:13:44,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-01-19 04:13:44,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 408 transitions. [2022-01-19 04:13:44,727 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7640449438202247 [2022-01-19 04:13:44,728 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 408 transitions. [2022-01-19 04:13:44,728 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 408 transitions. [2022-01-19 04:13:44,728 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:13:44,728 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 408 transitions. [2022-01-19 04:13:44,728 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 68.0) internal successors, (408), 6 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:13:44,729 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:13:44,729 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 89.0) internal successors, (623), 7 states have internal predecessors, (623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:13:44,729 INFO L186 Difference]: Start difference. First operand has 147 places, 204 transitions, 2097 flow. Second operand 6 states and 408 transitions. [2022-01-19 04:13:44,729 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 152 places, 412 transitions, 5053 flow [2022-01-19 04:15:40,360 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 146 places, 412 transitions, 4691 flow, removed 50 selfloop flow, removed 6 redundant places. [2022-01-19 04:15:40,364 INFO L242 Difference]: Finished difference. Result has 148 places, 262 transitions, 3034 flow [2022-01-19 04:15:40,364 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=1912, PETRI_DIFFERENCE_MINUEND_PLACES=141, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=22, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=139, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=3034, PETRI_PLACES=148, PETRI_TRANSITIONS=262} [2022-01-19 04:15:40,364 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 55 predicate places. [2022-01-19 04:15:40,364 INFO L470 AbstractCegarLoop]: Abstraction has has 148 places, 262 transitions, 3034 flow [2022-01-19 04:15:40,364 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 47.2) internal successors, (236), 5 states have internal predecessors, (236), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:15:40,364 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:15:40,365 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:15:40,365 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable42 [2022-01-19 04:15:40,365 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 04:15:40,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:15:40,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1844971891, now seen corresponding path program 1 times [2022-01-19 04:15:40,365 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:15:40,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434106246] [2022-01-19 04:15:40,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:15:40,365 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:15:40,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:15:40,433 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:15:40,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:15:40,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434106246] [2022-01-19 04:15:40,434 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434106246] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:15:40,434 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:15:40,434 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 04:15:40,434 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961063771] [2022-01-19 04:15:40,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:15:40,435 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 04:15:40,435 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:15:40,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 04:15:40,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 04:15:40,436 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 89 [2022-01-19 04:15:40,437 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 148 places, 262 transitions, 3034 flow. Second operand has 7 states, 7 states have (on average 46.285714285714285) internal successors, (324), 7 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:15:40,437 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:15:40,437 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 89 [2022-01-19 04:15:40,437 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:16:26,297 INFO L129 PetriNetUnfolder]: 240314/408961 cut-off events. [2022-01-19 04:16:26,297 INFO L130 PetriNetUnfolder]: For 1447821/1447856 co-relation queries the response was YES. [2022-01-19 04:16:30,253 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1298139 conditions, 408961 events. 240314/408961 cut-off events. For 1447821/1447856 co-relation queries the response was YES. Maximal size of possible extension queue 17596. Compared 4758106 event pairs, 114489 based on Foata normal form. 3006/394373 useless extension candidates. Maximal degree in co-relation 1212972. Up to 198862 conditions per place. [2022-01-19 04:16:32,575 INFO L132 encePairwiseOnDemand]: 79/89 looper letters, 278 selfloop transitions, 139 changer transitions 0/461 dead transitions. [2022-01-19 04:16:32,576 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 156 places, 461 transitions, 5353 flow [2022-01-19 04:16:32,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 04:16:32,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 04:16:32,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 609 transitions. [2022-01-19 04:16:32,577 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7602996254681648 [2022-01-19 04:16:32,577 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 609 transitions. [2022-01-19 04:16:32,577 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 609 transitions. [2022-01-19 04:16:32,577 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 04:16:32,577 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 609 transitions. [2022-01-19 04:16:32,578 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 67.66666666666667) internal successors, (609), 9 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:16:32,578 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:16:32,578 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 89.0) internal successors, (890), 10 states have internal predecessors, (890), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:16:32,578 INFO L186 Difference]: Start difference. First operand has 148 places, 262 transitions, 3034 flow. Second operand 9 states and 609 transitions. [2022-01-19 04:16:32,578 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 156 places, 461 transitions, 5353 flow [2022-01-19 04:18:36,106 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 156 places, 461 transitions, 5353 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 04:18:36,111 INFO L242 Difference]: Finished difference. Result has 159 places, 300 transitions, 4070 flow [2022-01-19 04:18:36,111 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=89, PETRI_DIFFERENCE_MINUEND_FLOW=3034, PETRI_DIFFERENCE_MINUEND_PLACES=148, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=262, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=101, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=146, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=4070, PETRI_PLACES=159, PETRI_TRANSITIONS=300} [2022-01-19 04:18:36,111 INFO L334 CegarLoopForPetriNet]: 93 programPoint places, 66 predicate places. [2022-01-19 04:18:36,111 INFO L470 AbstractCegarLoop]: Abstraction has has 159 places, 300 transitions, 4070 flow [2022-01-19 04:18:36,112 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 46.285714285714285) internal successors, (324), 7 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:18:36,112 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 04:18:36,112 INFO L254 CegarLoopForPetriNet]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 04:18:36,112 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable43 [2022-01-19 04:18:36,112 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting thr1Err0ASSERT_VIOLATIONERROR_FUNCTION === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2022-01-19 04:18:36,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 04:18:36,112 INFO L85 PathProgramCache]: Analyzing trace with hash -1943789671, now seen corresponding path program 2 times [2022-01-19 04:18:36,112 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 04:18:36,112 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1661219623] [2022-01-19 04:18:36,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 04:18:36,112 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 04:18:36,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 04:18:36,174 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2022-01-19 04:18:36,174 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 04:18:36,174 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1661219623] [2022-01-19 04:18:36,174 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1661219623] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 04:18:36,174 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 04:18:36,174 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 04:18:36,175 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773512106] [2022-01-19 04:18:36,175 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 04:18:36,175 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 04:18:36,175 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 04:18:36,175 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 04:18:36,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 04:18:36,176 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 44 out of 89 [2022-01-19 04:18:36,176 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 159 places, 300 transitions, 4070 flow. Second operand has 6 states, 6 states have (on average 46.666666666666664) internal successors, (280), 6 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 04:18:36,176 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 04:18:36,176 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 44 of 89 [2022-01-19 04:18:36,176 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 04:19:46,717 INFO L129 PetriNetUnfolder]: 349036/599711 cut-off events. [2022-01-19 04:19:46,718 INFO L130 PetriNetUnfolder]: For 2683920/2684002 co-relation queries the response was YES. Received shutdown request... [2022-01-19 04:19:51,958 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 04:19:52,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 [2022-01-19 04:19:53,476 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1996962 conditions, 599711 events. 349036/599711 cut-off events. For 2683920/2684002 co-relation queries the response was YES. Maximal size of possible extension queue 25986. Compared 7340739 event pairs, 183332 based on Foata normal form. 2902/577189 useless extension candidates. Maximal degree in co-relation 1859007. Up to 345617 conditions per place. Cannot interrupt operation gracefully because timeout expired. Forcing shutdown [2022-01-19 04:19:57,151 INFO L132 encePairwiseOnDemand]: 78/89 looper letters, 367 selfloop transitions, 149 changer transitions 0/560 dead transitions. [2022-01-19 04:19:57,151 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 166 places, 560 transitions, 8191 flow [2022-01-19 04:19:57,152 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-19 04:19:57,152 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable44 [2022-01-19 04:19:57,152 WARN L594 AbstractCegarLoop]: Verification canceled: while executing Executor. [2022-01-19 04:19:57,152 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (3 of 5 remaining) [2022-01-19 04:19:57,152 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (2 of 5 remaining) [2022-01-19 04:19:57,152 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (1 of 5 remaining) [2022-01-19 04:19:57,153 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location thr1Err0ASSERT_VIOLATIONERROR_FUNCTION (0 of 5 remaining) [2022-01-19 04:19:57,153 INFO L732 BasicCegarLoop]: Path program histogram: [4, 2, 1, 1, 1] [2022-01-19 04:19:57,154 INFO L309 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT,TIMEOUT (1/2) [2022-01-19 04:19:57,155 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == InUseError ======== [2022-01-19 04:19:57,161 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 04:19:57,161 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-19 04:19:57,161 WARN L594 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was constructing initial abstraction,while executing CegarLoopForPetriNet. [2022-01-19 04:19:57,161 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (0 of 1 remaining) [2022-01-19 04:19:57,162 INFO L732 BasicCegarLoop]: Path program histogram: [] [2022-01-19 04:19:57,162 INFO L309 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2022-01-19 04:19:57,162 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 4 thread instances [2022-01-19 04:19:57,162 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 04:19:57,186 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 04:19:57 BasicIcfg [2022-01-19 04:19:57,186 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 04:19:57,187 INFO L158 Benchmark]: Toolchain (without parser) took 755135.98ms. Allocated memory was 448.8MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 390.4MB in the beginning and 8.3GB in the end (delta: -7.9GB). Peak memory consumption was 7.6GB. Max. memory is 16.0GB. [2022-01-19 04:19:57,187 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 448.8MB. Free memory is still 407.9MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 04:19:57,187 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.23ms. Allocated memory was 448.8MB in the beginning and 597.7MB in the end (delta: 148.9MB). Free memory was 390.1MB in the beginning and 558.5MB in the end (delta: -168.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.0GB. [2022-01-19 04:19:57,187 INFO L158 Benchmark]: Boogie Procedure Inliner took 31.60ms. Allocated memory is still 597.7MB. Free memory was 558.5MB in the beginning and 556.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 04:19:57,188 INFO L158 Benchmark]: Boogie Preprocessor took 25.64ms. Allocated memory is still 597.7MB. Free memory was 556.4MB in the beginning and 555.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 04:19:57,190 INFO L158 Benchmark]: RCFGBuilder took 320.19ms. Allocated memory is still 597.7MB. Free memory was 554.3MB in the beginning and 538.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-19 04:19:57,190 INFO L158 Benchmark]: TraceAbstraction took 754406.88ms. Allocated memory was 597.7MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 537.5MB in the beginning and 8.3GB in the end (delta: -7.8GB). Peak memory consumption was 7.6GB. Max. memory is 16.0GB. [2022-01-19 04:19:57,197 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 448.8MB. Free memory is still 407.9MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 341.23ms. Allocated memory was 448.8MB in the beginning and 597.7MB in the end (delta: 148.9MB). Free memory was 390.1MB in the beginning and 558.5MB in the end (delta: -168.4MB). Peak memory consumption was 9.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 31.60ms. Allocated memory is still 597.7MB. Free memory was 558.5MB in the beginning and 556.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 25.64ms. Allocated memory is still 597.7MB. Free memory was 556.4MB in the beginning and 555.4MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 320.19ms. Allocated memory is still 597.7MB. Free memory was 554.3MB in the beginning and 538.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 754406.88ms. Allocated memory was 597.7MB in the beginning and 16.0GB in the end (delta: 15.4GB). Free memory was 537.5MB in the beginning and 8.3GB in the end (delta: -7.8GB). Peak memory consumption was 7.6GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 726]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 733]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was constructing initial abstraction,while executing CegarLoopForPetriNet. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 57 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.4s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 5 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 5 mSDsluCounter, 3 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 17 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 2 mSDtfsCounter, 17 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 28 NumberOfCodeBlocks, 28 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 85 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 71 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 1.5s, OverallIterations: 6, TraceHistogramMax: 2, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 196 SdHoareTripleChecker+Valid, 0.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 196 mSDsluCounter, 66 SdHoareTripleChecker+Invalid, 0.3s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 194 mSDsCounter, 42 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 690 IncrementalHoareTripleChecker+Invalid, 732 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 42 mSolverCounterUnsat, 33 mSDtfsCounter, 690 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=263occurred in iteration=5, InterpolantAutomatonStates: 40, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 227 NumberOfCodeBlocks, 227 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 221 ConstructedInterpolants, 0 QuantifiedInterpolants, 814 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 25/25 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 85 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 196.8s, OverallIterations: 26, TraceHistogramMax: 3, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 195.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2640 SdHoareTripleChecker+Valid, 4.4s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2640 mSDsluCounter, 919 SdHoareTripleChecker+Invalid, 3.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2992 mSDsCounter, 389 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 8930 IncrementalHoareTripleChecker+Invalid, 9319 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 389 mSolverCounterUnsat, 369 mSDtfsCounter, 8930 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 288 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 261 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 439 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13015occurred in iteration=19, InterpolantAutomatonStates: 263, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.4s InterpolantComputationTime, 1251 NumberOfCodeBlocks, 1251 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1225 ConstructedInterpolants, 0 QuantifiedInterpolants, 5029 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 PerfectInterpolantSequences, 365/365 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 4 thread instances CFG has 6 procedures, 99 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 555.4s, OverallIterations: 9, TraceHistogramMax: 3, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 554.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1369 SdHoareTripleChecker+Valid, 1.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1369 mSDsluCounter, 344 SdHoareTripleChecker+Invalid, 1.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1369 mSDsCounter, 96 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4011 IncrementalHoareTripleChecker+Invalid, 4107 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 96 mSolverCounterUnsat, 181 mSDtfsCounter, 4011 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=4070occurred in iteration=8, InterpolantAutomatonStates: 66, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 365 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 356 ConstructedInterpolants, 0 QuantifiedInterpolants, 1304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 PerfectInterpolantSequences, 76/76 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 57 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 27 NumberOfCodeBlocks, 27 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 71 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 3, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=130occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 34 NumberOfCodeBlocks, 34 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 5 procedures, 85 locations, 5 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.0s, OverallIterations: 1, TraceHistogramMax: 4, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=169occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 4 thread instances CFG has 6 procedures, 99 locations, 6 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, PathProgramHistogramMax: 0, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout !SESSION 2022-01-19 04:07:19.317 ----------------------------------------------- eclipse.buildId=unknown java.version=11.0.12 java.vendor=Debian BootLoader constants: OS=linux, ARCH=x86_64, WS=gtk, NL=en_US Framework arguments: -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/pthread-ext/01b_inc.i Command-line arguments: -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/pthread-ext/01b_inc.i !ENTRY org.eclipse.osgi 4 0 2022-01-19 04:19:57.240 !MESSAGE Application error !STACK 1 org.eclipse.core.internal.resources.ResourceException(/)[568]: java.io.FileNotFoundException: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed83b55fc/.metadata/.plugins/org.eclipse.core.resources/.root/1.tree (No such file or directory) at java.base/java.io.FileOutputStream.open0(Native Method) at java.base/java.io.FileOutputStream.open(FileOutputStream.java:298) at java.base/java.io.FileOutputStream.(FileOutputStream.java:237) at java.base/java.io.FileOutputStream.(FileOutputStream.java:187) at org.eclipse.core.internal.localstore.SafeFileOutputStream.(SafeFileOutputStream.java:55) at org.eclipse.core.internal.resources.SaveManager.saveTree(SaveManager.java:1381) at org.eclipse.core.internal.resources.SaveManager.save(SaveManager.java:1168) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2333) at org.eclipse.core.internal.resources.Workspace.save(Workspace.java:2322) at de.uni_freiburg.informatik.ultimate.core.coreplugin.UltimateCore.start(UltimateCore.java:191) at org.eclipse.equinox.internal.app.EclipseAppHandle.run(EclipseAppHandle.java:203) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.runApplication(EclipseAppLauncher.java:134) at org.eclipse.core.runtime.internal.adaptor.EclipseAppLauncher.start(EclipseAppLauncher.java:104) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:401) at org.eclipse.core.runtime.adaptor.EclipseStarter.run(EclipseStarter.java:255) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at org.eclipse.equinox.launcher.Main.invokeFramework(Main.java:657) at org.eclipse.equinox.launcher.Main.basicRun(Main.java:594) at org.eclipse.equinox.launcher.Main.run(Main.java:1465) at org.eclipse.equinox.launcher.Main.main(Main.java:1438) An error has occurred. See the log file /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ed83b55fc/.metadata/.log.