/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe-Before.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 08:21:06,284 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 08:21:06,285 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 08:21:06,328 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 08:21:06,329 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 08:21:06,330 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 08:21:06,331 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 08:21:06,332 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 08:21:06,348 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 08:21:06,349 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 08:21:06,350 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 08:21:06,350 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 08:21:06,351 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 08:21:06,352 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 08:21:06,352 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 08:21:06,353 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 08:21:06,354 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 08:21:06,355 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 08:21:06,356 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 08:21:06,357 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 08:21:06,360 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 08:21:06,363 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 08:21:06,364 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 08:21:06,365 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 08:21:06,367 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 08:21:06,367 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 08:21:06,367 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 08:21:06,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 08:21:06,368 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 08:21:06,369 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 08:21:06,369 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 08:21:06,369 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 08:21:06,370 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 08:21:06,371 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 08:21:06,371 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 08:21:06,371 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 08:21:06,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 08:21:06,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 08:21:06,372 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 08:21:06,373 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 08:21:06,373 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 08:21:06,375 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 08:21:06,413 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 08:21:06,413 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 08:21:06,414 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 08:21:06,414 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 08:21:06,415 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 08:21:06,415 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 08:21:06,415 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 08:21:06,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 08:21:06,415 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 08:21:06,415 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 08:21:06,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 08:21:06,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 08:21:06,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 08:21:06,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 08:21:06,417 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 08:21:06,417 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 08:21:06,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 08:21:06,417 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 08:21:06,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 08:21:06,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 08:21:06,417 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 08:21:06,417 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 08:21:06,417 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 08:21:06,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 08:21:06,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 08:21:06,418 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 08:21:06,418 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 08:21:06,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 08:21:06,418 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 08:21:06,418 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 08:21:06,418 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 08:21:06,418 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=BEFORE [2022-01-19 08:21:06,419 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 08:21:06,603 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 08:21:06,618 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 08:21:06,620 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 08:21:06,621 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 08:21:06,621 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 08:21:06,622 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2022-01-19 08:21:06,676 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a146362b7/6cb8af9c51554596a3ab70731f84f08f/FLAGfba9187ff [2022-01-19 08:21:07,087 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 08:21:07,088 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c [2022-01-19 08:21:07,103 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a146362b7/6cb8af9c51554596a3ab70731f84f08f/FLAGfba9187ff [2022-01-19 08:21:07,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a146362b7/6cb8af9c51554596a3ab70731f84f08f [2022-01-19 08:21:07,120 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 08:21:07,123 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 08:21:07,124 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 08:21:07,124 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 08:21:07,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 08:21:07,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71d5360e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07, skipping insertion in model container [2022-01-19 08:21:07,128 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,133 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 08:21:07,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 08:21:07,323 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c[4099,4112] [2022-01-19 08:21:07,330 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 08:21:07,335 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 08:21:07,364 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-buffer-mult2.wvr.c[4099,4112] [2022-01-19 08:21:07,374 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 08:21:07,386 INFO L208 MainTranslator]: Completed translation [2022-01-19 08:21:07,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07 WrapperNode [2022-01-19 08:21:07,386 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 08:21:07,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 08:21:07,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 08:21:07,387 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 08:21:07,392 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,425 INFO L137 Inliner]: procedures = 27, calls = 76, calls flagged for inlining = 18, calls inlined = 22, statements flattened = 303 [2022-01-19 08:21:07,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 08:21:07,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 08:21:07,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 08:21:07,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 08:21:07,435 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,435 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,439 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,439 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,449 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,462 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,464 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,467 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 08:21:07,468 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 08:21:07,468 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 08:21:07,468 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 08:21:07,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (1/1) ... [2022-01-19 08:21:07,483 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 08:21:07,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:21:07,503 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 08:21:07,507 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 08:21:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 08:21:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 08:21:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 08:21:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 08:21:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 08:21:07,530 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 08:21:07,530 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 08:21:07,531 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 08:21:07,531 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 08:21:07,531 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 08:21:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-01-19 08:21:07,532 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-01-19 08:21:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 08:21:07,532 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 08:21:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 08:21:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 08:21:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 08:21:07,533 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 08:21:07,533 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 08:21:07,534 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 08:21:07,614 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 08:21:07,615 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 08:21:07,971 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 08:21:08,103 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 08:21:08,104 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2022-01-19 08:21:08,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 08:21:08 BoogieIcfgContainer [2022-01-19 08:21:08,106 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 08:21:08,107 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 08:21:08,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 08:21:08,110 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 08:21:08,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 08:21:07" (1/3) ... [2022-01-19 08:21:08,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a695855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 08:21:08, skipping insertion in model container [2022-01-19 08:21:08,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 08:21:07" (2/3) ... [2022-01-19 08:21:08,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a695855 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 08:21:08, skipping insertion in model container [2022-01-19 08:21:08,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 08:21:08" (3/3) ... [2022-01-19 08:21:08,113 INFO L111 eAbstractionObserver]: Analyzing ICFG popl20-more-buffer-mult2.wvr.c [2022-01-19 08:21:08,117 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 08:21:08,117 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 08:21:08,117 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 08:21:08,155 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,156 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,156 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,157 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,157 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,157 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,157 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,157 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,158 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,159 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,159 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,159 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,159 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,159 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,160 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,160 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,160 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,160 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,161 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,162 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,163 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,163 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,163 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,163 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,163 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,164 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,164 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,164 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,164 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,165 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,165 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,165 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,165 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,166 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,166 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,166 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,166 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,167 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,167 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,167 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,167 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,168 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,168 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,168 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,168 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,168 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,168 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,168 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,168 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,169 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,169 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,169 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,170 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,170 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,170 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,170 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,171 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,171 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,171 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,172 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,172 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,173 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,174 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,174 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,174 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,174 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,174 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,175 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,175 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,175 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,176 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,176 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,178 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,179 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,179 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,179 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,179 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,179 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,180 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,180 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,180 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,180 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,180 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,181 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,181 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,181 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,181 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,183 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,183 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,183 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,183 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,185 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,185 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~mem10#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~post12#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,190 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_~cond~3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#t~ret11#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,191 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,192 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,192 WARN L322 ript$VariableManager]: TermVariabe |thread4Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post5#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_~cond~1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,193 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,194 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork1_#t~post6#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,194 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,194 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,194 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#res#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_~cond~2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~mem7#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~ret8#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#t~post9#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,195 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~a#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_#in~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,196 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork2_plus_~b#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_~cond~0#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~post3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,197 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,198 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork3_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 08:21:08,204 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-19 08:21:08,256 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 08:21:08,261 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 08:21:08,261 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-19 08:21:08,279 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 224 places, 229 transitions, 490 flow [2022-01-19 08:21:08,377 INFO L129 PetriNetUnfolder]: 18/225 cut-off events. [2022-01-19 08:21:08,377 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 08:21:08,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 242 conditions, 225 events. 18/225 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 113 event pairs, 0 based on Foata normal form. 0/206 useless extension candidates. Maximal degree in co-relation 186. Up to 2 conditions per place. [2022-01-19 08:21:08,383 INFO L82 GeneralOperation]: Start removeDead. Operand has 224 places, 229 transitions, 490 flow [2022-01-19 08:21:08,393 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 207 places, 212 transitions, 448 flow [2022-01-19 08:21:08,436 INFO L129 PetriNetUnfolder]: 18/211 cut-off events. [2022-01-19 08:21:08,436 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 08:21:08,436 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:08,437 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:08,437 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:08,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:08,444 INFO L85 PathProgramCache]: Analyzing trace with hash 238758714, now seen corresponding path program 1 times [2022-01-19 08:21:08,450 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:08,450 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2019046260] [2022-01-19 08:21:08,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:08,455 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:08,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:08,777 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 08:21:08,778 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:08,778 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2019046260] [2022-01-19 08:21:08,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2019046260] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:08,779 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:08,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 08:21:08,781 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1809665381] [2022-01-19 08:21:08,781 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:08,790 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 08:21:08,790 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:08,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 08:21:08,822 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 08:21:08,824 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 204 out of 229 [2022-01-19 08:21:08,830 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 207 places, 212 transitions, 448 flow. Second operand has 2 states, 2 states have (on average 209.0) internal successors, (418), 2 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:08,831 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:08,831 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 204 of 229 [2022-01-19 08:21:08,832 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:08,980 INFO L129 PetriNetUnfolder]: 123/515 cut-off events. [2022-01-19 08:21:08,981 INFO L130 PetriNetUnfolder]: For 105/106 co-relation queries the response was YES. [2022-01-19 08:21:08,985 INFO L84 FinitePrefix]: Finished finitePrefix Result has 743 conditions, 515 events. 123/515 cut-off events. For 105/106 co-relation queries the response was YES. Maximal size of possible extension queue 23. Compared 1702 event pairs, 51 based on Foata normal form. 125/579 useless extension candidates. Maximal degree in co-relation 504. Up to 163 conditions per place. [2022-01-19 08:21:08,990 INFO L132 encePairwiseOnDemand]: 217/229 looper letters, 12 selfloop transitions, 0 changer transitions 6/200 dead transitions. [2022-01-19 08:21:08,990 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 200 transitions, 448 flow [2022-01-19 08:21:08,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 08:21:08,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 08:21:09,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 432 transitions. [2022-01-19 08:21:09,007 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9432314410480349 [2022-01-19 08:21:09,008 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 432 transitions. [2022-01-19 08:21:09,008 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 432 transitions. [2022-01-19 08:21:09,011 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:09,013 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 432 transitions. [2022-01-19 08:21:09,018 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 216.0) internal successors, (432), 2 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,024 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,024 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 229.0) internal successors, (687), 3 states have internal predecessors, (687), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,026 INFO L186 Difference]: Start difference. First operand has 207 places, 212 transitions, 448 flow. Second operand 2 states and 432 transitions. [2022-01-19 08:21:09,027 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 200 transitions, 448 flow [2022-01-19 08:21:09,030 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 200 transitions, 432 flow, removed 0 selfloop flow, removed 8 redundant places. [2022-01-19 08:21:09,034 INFO L242 Difference]: Finished difference. Result has 200 places, 194 transitions, 396 flow [2022-01-19 08:21:09,036 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=408, PETRI_DIFFERENCE_MINUEND_PLACES=199, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=200, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=200, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=396, PETRI_PLACES=200, PETRI_TRANSITIONS=194} [2022-01-19 08:21:09,041 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, -7 predicate places. [2022-01-19 08:21:09,041 INFO L470 AbstractCegarLoop]: Abstraction has has 200 places, 194 transitions, 396 flow [2022-01-19 08:21:09,042 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 209.0) internal successors, (418), 2 states have internal predecessors, (418), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,042 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:09,045 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:09,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 08:21:09,047 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:09,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:09,048 INFO L85 PathProgramCache]: Analyzing trace with hash -399207150, now seen corresponding path program 1 times [2022-01-19 08:21:09,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:09,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1227154809] [2022-01-19 08:21:09,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:09,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:09,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:09,384 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 08:21:09,384 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:09,384 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1227154809] [2022-01-19 08:21:09,385 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1227154809] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:09,385 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:09,386 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-19 08:21:09,386 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937811906] [2022-01-19 08:21:09,386 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:09,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-19 08:21:09,388 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:09,389 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-19 08:21:09,389 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-01-19 08:21:09,391 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 173 out of 229 [2022-01-19 08:21:09,393 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 200 places, 194 transitions, 396 flow. Second operand has 5 states, 5 states have (on average 179.6) internal successors, (898), 5 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,393 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:09,393 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 173 of 229 [2022-01-19 08:21:09,393 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:09,563 INFO L129 PetriNetUnfolder]: 133/509 cut-off events. [2022-01-19 08:21:09,563 INFO L130 PetriNetUnfolder]: For 31/32 co-relation queries the response was YES. [2022-01-19 08:21:09,565 INFO L84 FinitePrefix]: Finished finitePrefix Result has 727 conditions, 509 events. 133/509 cut-off events. For 31/32 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 1579 event pairs, 14 based on Foata normal form. 1/469 useless extension candidates. Maximal degree in co-relation 724. Up to 133 conditions per place. [2022-01-19 08:21:09,568 INFO L132 encePairwiseOnDemand]: 223/229 looper letters, 42 selfloop transitions, 3 changer transitions 4/206 dead transitions. [2022-01-19 08:21:09,568 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 198 places, 206 transitions, 523 flow [2022-01-19 08:21:09,568 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-19 08:21:09,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-01-19 08:21:09,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 915 transitions. [2022-01-19 08:21:09,570 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7991266375545851 [2022-01-19 08:21:09,570 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 915 transitions. [2022-01-19 08:21:09,570 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 915 transitions. [2022-01-19 08:21:09,571 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:09,571 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 915 transitions. [2022-01-19 08:21:09,573 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 183.0) internal successors, (915), 5 states have internal predecessors, (915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,576 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 229.0) internal successors, (1374), 6 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,577 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 229.0) internal successors, (1374), 6 states have internal predecessors, (1374), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,577 INFO L186 Difference]: Start difference. First operand has 200 places, 194 transitions, 396 flow. Second operand 5 states and 915 transitions. [2022-01-19 08:21:09,577 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 198 places, 206 transitions, 523 flow [2022-01-19 08:21:09,579 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 206 transitions, 523 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 08:21:09,582 INFO L242 Difference]: Finished difference. Result has 201 places, 196 transitions, 419 flow [2022-01-19 08:21:09,582 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=396, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=194, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=191, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=419, PETRI_PLACES=201, PETRI_TRANSITIONS=196} [2022-01-19 08:21:09,583 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, -6 predicate places. [2022-01-19 08:21:09,583 INFO L470 AbstractCegarLoop]: Abstraction has has 201 places, 196 transitions, 419 flow [2022-01-19 08:21:09,584 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 179.6) internal successors, (898), 5 states have internal predecessors, (898), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,584 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:09,584 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:09,584 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 08:21:09,584 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:09,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:09,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1096965397, now seen corresponding path program 1 times [2022-01-19 08:21:09,585 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:09,585 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105881587] [2022-01-19 08:21:09,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:09,585 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:09,659 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:21:09,659 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:09,660 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105881587] [2022-01-19 08:21:09,660 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105881587] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:09,660 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:09,660 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 08:21:09,660 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1776313170] [2022-01-19 08:21:09,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:09,661 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 08:21:09,661 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:09,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 08:21:09,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 08:21:09,663 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 229 [2022-01-19 08:21:09,664 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 196 transitions, 419 flow. Second operand has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 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 08:21:09,664 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:09,664 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 229 [2022-01-19 08:21:09,664 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:09,845 INFO L129 PetriNetUnfolder]: 208/754 cut-off events. [2022-01-19 08:21:09,845 INFO L130 PetriNetUnfolder]: For 135/135 co-relation queries the response was YES. [2022-01-19 08:21:09,847 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1185 conditions, 754 events. 208/754 cut-off events. For 135/135 co-relation queries the response was YES. Maximal size of possible extension queue 37. Compared 3325 event pairs, 75 based on Foata normal form. 12/668 useless extension candidates. Maximal degree in co-relation 1178. Up to 207 conditions per place. [2022-01-19 08:21:09,852 INFO L132 encePairwiseOnDemand]: 226/229 looper letters, 30 selfloop transitions, 2 changer transitions 0/208 dead transitions. [2022-01-19 08:21:09,852 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 208 transitions, 519 flow [2022-01-19 08:21:09,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 08:21:09,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 08:21:09,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 624 transitions. [2022-01-19 08:21:09,854 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9082969432314411 [2022-01-19 08:21:09,854 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 624 transitions. [2022-01-19 08:21:09,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 624 transitions. [2022-01-19 08:21:09,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:09,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 624 transitions. [2022-01-19 08:21:09,856 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 208.0) internal successors, (624), 3 states have internal predecessors, (624), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,857 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,858 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:09,858 INFO L186 Difference]: Start difference. First operand has 201 places, 196 transitions, 419 flow. Second operand 3 states and 624 transitions. [2022-01-19 08:21:09,858 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 208 transitions, 519 flow [2022-01-19 08:21:09,862 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 198 places, 208 transitions, 511 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-01-19 08:21:09,866 INFO L242 Difference]: Finished difference. Result has 199 places, 197 transitions, 426 flow [2022-01-19 08:21:09,867 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=412, PETRI_DIFFERENCE_MINUEND_PLACES=196, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=196, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=426, PETRI_PLACES=199, PETRI_TRANSITIONS=197} [2022-01-19 08:21:09,868 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, -8 predicate places. [2022-01-19 08:21:09,869 INFO L470 AbstractCegarLoop]: Abstraction has has 199 places, 197 transitions, 426 flow [2022-01-19 08:21:09,869 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 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 08:21:09,869 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:09,869 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:09,869 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 08:21:09,870 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:09,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:09,870 INFO L85 PathProgramCache]: Analyzing trace with hash -422545413, now seen corresponding path program 1 times [2022-01-19 08:21:09,870 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:09,870 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1741358852] [2022-01-19 08:21:09,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:09,871 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:09,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:21:09,958 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:09,958 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1741358852] [2022-01-19 08:21:09,958 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1741358852] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:09,958 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:09,959 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 08:21:09,959 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1759288243] [2022-01-19 08:21:09,959 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:09,960 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 08:21:09,960 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:09,961 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 08:21:09,964 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 08:21:09,965 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 198 out of 229 [2022-01-19 08:21:09,966 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 199 places, 197 transitions, 426 flow. Second operand has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 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 08:21:09,966 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:09,966 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 198 of 229 [2022-01-19 08:21:09,966 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:10,087 INFO L129 PetriNetUnfolder]: 152/674 cut-off events. [2022-01-19 08:21:10,087 INFO L130 PetriNetUnfolder]: For 210/211 co-relation queries the response was YES. [2022-01-19 08:21:10,089 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1070 conditions, 674 events. 152/674 cut-off events. For 210/211 co-relation queries the response was YES. Maximal size of possible extension queue 28. Compared 2850 event pairs, 47 based on Foata normal form. 12/606 useless extension candidates. Maximal degree in co-relation 1064. Up to 171 conditions per place. [2022-01-19 08:21:10,092 INFO L132 encePairwiseOnDemand]: 226/229 looper letters, 31 selfloop transitions, 2 changer transitions 0/209 dead transitions. [2022-01-19 08:21:10,092 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 201 places, 209 transitions, 535 flow [2022-01-19 08:21:10,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 08:21:10,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 08:21:10,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 623 transitions. [2022-01-19 08:21:10,094 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9068413391557496 [2022-01-19 08:21:10,094 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 623 transitions. [2022-01-19 08:21:10,095 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 623 transitions. [2022-01-19 08:21:10,095 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:10,095 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 623 transitions. [2022-01-19 08:21:10,096 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 207.66666666666666) internal successors, (623), 3 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 08:21:10,098 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,098 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 229.0) internal successors, (916), 4 states have internal predecessors, (916), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,098 INFO L186 Difference]: Start difference. First operand has 199 places, 197 transitions, 426 flow. Second operand 3 states and 623 transitions. [2022-01-19 08:21:10,098 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 201 places, 209 transitions, 535 flow [2022-01-19 08:21:10,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 200 places, 209 transitions, 532 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 08:21:10,105 INFO L242 Difference]: Finished difference. Result has 201 places, 198 transitions, 438 flow [2022-01-19 08:21:10,105 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=424, PETRI_DIFFERENCE_MINUEND_PLACES=198, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=197, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=195, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=438, PETRI_PLACES=201, PETRI_TRANSITIONS=198} [2022-01-19 08:21:10,107 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, -6 predicate places. [2022-01-19 08:21:10,107 INFO L470 AbstractCegarLoop]: Abstraction has has 201 places, 198 transitions, 438 flow [2022-01-19 08:21:10,107 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 203.0) internal successors, (609), 3 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 08:21:10,107 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:10,107 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:10,108 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 08:21:10,108 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:10,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:10,108 INFO L85 PathProgramCache]: Analyzing trace with hash -532077630, now seen corresponding path program 1 times [2022-01-19 08:21:10,109 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:10,110 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [264189857] [2022-01-19 08:21:10,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:10,110 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:10,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:10,239 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:21:10,240 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:10,240 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [264189857] [2022-01-19 08:21:10,240 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [264189857] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:10,240 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:10,240 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 08:21:10,240 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709669733] [2022-01-19 08:21:10,240 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:10,241 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 08:21:10,241 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:10,241 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 08:21:10,241 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 08:21:10,243 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 229 [2022-01-19 08:21:10,244 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 201 places, 198 transitions, 438 flow. Second operand has 6 states, 6 states have (on average 182.66666666666666) internal successors, (1096), 6 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,244 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:10,244 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 229 [2022-01-19 08:21:10,244 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:10,449 INFO L129 PetriNetUnfolder]: 107/708 cut-off events. [2022-01-19 08:21:10,450 INFO L130 PetriNetUnfolder]: For 229/230 co-relation queries the response was YES. [2022-01-19 08:21:10,452 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1142 conditions, 708 events. 107/708 cut-off events. For 229/230 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 2830 event pairs, 36 based on Foata normal form. 8/649 useless extension candidates. Maximal degree in co-relation 1135. Up to 155 conditions per place. [2022-01-19 08:21:10,455 INFO L132 encePairwiseOnDemand]: 219/229 looper letters, 60 selfloop transitions, 11 changer transitions 0/227 dead transitions. [2022-01-19 08:21:10,455 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 209 places, 227 transitions, 659 flow [2022-01-19 08:21:10,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 08:21:10,455 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 08:21:10,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1668 transitions. [2022-01-19 08:21:10,458 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8093158660844251 [2022-01-19 08:21:10,459 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1668 transitions. [2022-01-19 08:21:10,459 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1668 transitions. [2022-01-19 08:21:10,459 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:10,459 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1668 transitions. [2022-01-19 08:21:10,463 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 185.33333333333334) internal successors, (1668), 9 states have internal predecessors, (1668), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,466 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 229.0) internal successors, (2290), 10 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,468 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 229.0) internal successors, (2290), 10 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,468 INFO L186 Difference]: Start difference. First operand has 201 places, 198 transitions, 438 flow. Second operand 9 states and 1668 transitions. [2022-01-19 08:21:10,468 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 209 places, 227 transitions, 659 flow [2022-01-19 08:21:10,470 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 208 places, 227 transitions, 656 flow, removed 0 selfloop flow, removed 1 redundant places. [2022-01-19 08:21:10,472 INFO L242 Difference]: Finished difference. Result has 210 places, 202 transitions, 478 flow [2022-01-19 08:21:10,473 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=436, PETRI_DIFFERENCE_MINUEND_PLACES=200, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=198, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=7, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=189, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=478, PETRI_PLACES=210, PETRI_TRANSITIONS=202} [2022-01-19 08:21:10,475 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 3 predicate places. [2022-01-19 08:21:10,475 INFO L470 AbstractCegarLoop]: Abstraction has has 210 places, 202 transitions, 478 flow [2022-01-19 08:21:10,476 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.66666666666666) internal successors, (1096), 6 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,476 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:10,476 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:10,476 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 08:21:10,477 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:10,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:10,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1814960024, now seen corresponding path program 1 times [2022-01-19 08:21:10,477 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:10,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098384863] [2022-01-19 08:21:10,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:10,478 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:10,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:10,572 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 08:21:10,572 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:10,572 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098384863] [2022-01-19 08:21:10,573 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098384863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:10,573 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:10,573 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 08:21:10,573 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [973613023] [2022-01-19 08:21:10,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:10,573 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 08:21:10,573 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:10,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 08:21:10,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-01-19 08:21:10,576 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 178 out of 229 [2022-01-19 08:21:10,577 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 210 places, 202 transitions, 478 flow. Second operand has 6 states, 6 states have (on average 182.66666666666666) internal successors, (1096), 6 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,577 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:10,577 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 178 of 229 [2022-01-19 08:21:10,577 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:10,792 INFO L129 PetriNetUnfolder]: 123/934 cut-off events. [2022-01-19 08:21:10,792 INFO L130 PetriNetUnfolder]: For 321/323 co-relation queries the response was YES. [2022-01-19 08:21:10,795 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1478 conditions, 934 events. 123/934 cut-off events. For 321/323 co-relation queries the response was YES. Maximal size of possible extension queue 24. Compared 4507 event pairs, 42 based on Foata normal form. 15/868 useless extension candidates. Maximal degree in co-relation 1469. Up to 198 conditions per place. [2022-01-19 08:21:10,798 INFO L132 encePairwiseOnDemand]: 221/229 looper letters, 55 selfloop transitions, 8 changer transitions 0/219 dead transitions. [2022-01-19 08:21:10,798 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 216 places, 219 transitions, 660 flow [2022-01-19 08:21:10,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 08:21:10,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 08:21:10,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1300 transitions. [2022-01-19 08:21:10,802 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.810979413599501 [2022-01-19 08:21:10,802 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1300 transitions. [2022-01-19 08:21:10,802 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1300 transitions. [2022-01-19 08:21:10,802 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:10,802 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1300 transitions. [2022-01-19 08:21:10,805 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 185.71428571428572) internal successors, (1300), 7 states have internal predecessors, (1300), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,807 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 229.0) internal successors, (1832), 8 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,807 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 229.0) internal successors, (1832), 8 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,807 INFO L186 Difference]: Start difference. First operand has 210 places, 202 transitions, 478 flow. Second operand 7 states and 1300 transitions. [2022-01-19 08:21:10,808 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 216 places, 219 transitions, 660 flow [2022-01-19 08:21:10,810 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 213 places, 219 transitions, 651 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 08:21:10,812 INFO L242 Difference]: Finished difference. Result has 215 places, 204 transitions, 499 flow [2022-01-19 08:21:10,813 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=469, PETRI_DIFFERENCE_MINUEND_PLACES=207, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=202, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=194, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=499, PETRI_PLACES=215, PETRI_TRANSITIONS=204} [2022-01-19 08:21:10,813 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 8 predicate places. [2022-01-19 08:21:10,813 INFO L470 AbstractCegarLoop]: Abstraction has has 215 places, 204 transitions, 499 flow [2022-01-19 08:21:10,814 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 182.66666666666666) internal successors, (1096), 6 states have internal predecessors, (1096), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:10,814 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:10,814 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:10,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 08:21:10,814 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:10,815 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:10,815 INFO L85 PathProgramCache]: Analyzing trace with hash 669279275, now seen corresponding path program 1 times [2022-01-19 08:21:10,815 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:10,815 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [350636776] [2022-01-19 08:21:10,815 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:10,815 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:10,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:11,054 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:21:11,054 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:11,054 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [350636776] [2022-01-19 08:21:11,054 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [350636776] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:11,054 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:11,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 08:21:11,055 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1327761796] [2022-01-19 08:21:11,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:11,055 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:21:11,055 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:11,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:21:11,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-19 08:21:11,058 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 229 [2022-01-19 08:21:11,059 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 215 places, 204 transitions, 499 flow. Second operand has 9 states, 9 states have (on average 186.11111111111111) internal successors, (1675), 9 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:11,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:11,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 229 [2022-01-19 08:21:11,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:12,642 INFO L129 PetriNetUnfolder]: 5032/10171 cut-off events. [2022-01-19 08:21:12,643 INFO L130 PetriNetUnfolder]: For 3380/3421 co-relation queries the response was YES. [2022-01-19 08:21:12,666 INFO L84 FinitePrefix]: Finished finitePrefix Result has 20365 conditions, 10171 events. 5032/10171 cut-off events. For 3380/3421 co-relation queries the response was YES. Maximal size of possible extension queue 473. Compared 82194 event pairs, 1257 based on Foata normal form. 22/8514 useless extension candidates. Maximal degree in co-relation 20354. Up to 3533 conditions per place. [2022-01-19 08:21:12,704 INFO L132 encePairwiseOnDemand]: 219/229 looper letters, 77 selfloop transitions, 14 changer transitions 30/288 dead transitions. [2022-01-19 08:21:12,704 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 224 places, 288 transitions, 989 flow [2022-01-19 08:21:12,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 08:21:12,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 08:21:12,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 1949 transitions. [2022-01-19 08:21:12,709 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8510917030567685 [2022-01-19 08:21:12,709 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 1949 transitions. [2022-01-19 08:21:12,709 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 1949 transitions. [2022-01-19 08:21:12,710 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:12,710 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 1949 transitions. [2022-01-19 08:21:12,713 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 194.9) internal successors, (1949), 10 states have internal predecessors, (1949), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:12,716 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 229.0) internal successors, (2519), 11 states have internal predecessors, (2519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:12,717 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 229.0) internal successors, (2519), 11 states have internal predecessors, (2519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:12,717 INFO L186 Difference]: Start difference. First operand has 215 places, 204 transitions, 499 flow. Second operand 10 states and 1949 transitions. [2022-01-19 08:21:12,717 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 224 places, 288 transitions, 989 flow [2022-01-19 08:21:12,721 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 220 places, 288 transitions, 977 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 08:21:12,724 INFO L242 Difference]: Finished difference. Result has 226 places, 213 transitions, 590 flow [2022-01-19 08:21:12,724 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=487, PETRI_DIFFERENCE_MINUEND_PLACES=211, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=204, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=196, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=590, PETRI_PLACES=226, PETRI_TRANSITIONS=213} [2022-01-19 08:21:12,725 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 19 predicate places. [2022-01-19 08:21:12,725 INFO L470 AbstractCegarLoop]: Abstraction has has 226 places, 213 transitions, 590 flow [2022-01-19 08:21:12,726 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.11111111111111) internal successors, (1675), 9 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:12,726 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:12,726 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:12,726 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-19 08:21:12,726 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:12,726 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:12,727 INFO L85 PathProgramCache]: Analyzing trace with hash 1474183133, now seen corresponding path program 2 times [2022-01-19 08:21:12,727 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:12,727 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [944677884] [2022-01-19 08:21:12,727 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:12,727 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:12,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:12,969 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:21:12,969 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:12,970 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [944677884] [2022-01-19 08:21:12,970 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [944677884] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:12,970 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:12,970 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 08:21:12,970 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [538555460] [2022-01-19 08:21:12,970 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:12,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:21:12,971 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:12,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:21:12,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-19 08:21:12,972 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 229 [2022-01-19 08:21:12,974 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 226 places, 213 transitions, 590 flow. Second operand has 8 states, 8 states have (on average 186.5) internal successors, (1492), 8 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:12,974 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:12,974 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 229 [2022-01-19 08:21:12,974 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:14,991 INFO L129 PetriNetUnfolder]: 6104/12058 cut-off events. [2022-01-19 08:21:14,991 INFO L130 PetriNetUnfolder]: For 8646/8646 co-relation queries the response was YES. [2022-01-19 08:21:15,031 INFO L84 FinitePrefix]: Finished finitePrefix Result has 28044 conditions, 12058 events. 6104/12058 cut-off events. For 8646/8646 co-relation queries the response was YES. Maximal size of possible extension queue 556. Compared 98974 event pairs, 549 based on Foata normal form. 228/11618 useless extension candidates. Maximal degree in co-relation 28027. Up to 3770 conditions per place. [2022-01-19 08:21:15,080 INFO L132 encePairwiseOnDemand]: 219/229 looper letters, 120 selfloop transitions, 29 changer transitions 9/325 dead transitions. [2022-01-19 08:21:15,080 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 235 places, 325 transitions, 1344 flow [2022-01-19 08:21:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 08:21:15,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 08:21:15,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2339 transitions. [2022-01-19 08:21:15,085 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8511644832605532 [2022-01-19 08:21:15,085 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2339 transitions. [2022-01-19 08:21:15,086 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2339 transitions. [2022-01-19 08:21:15,087 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:15,087 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2339 transitions. [2022-01-19 08:21:15,091 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 194.91666666666666) internal successors, (2339), 12 states have internal predecessors, (2339), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:15,096 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 229.0) internal successors, (2977), 13 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:15,097 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 229.0) internal successors, (2977), 13 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:15,097 INFO L186 Difference]: Start difference. First operand has 226 places, 213 transitions, 590 flow. Second operand 12 states and 2339 transitions. [2022-01-19 08:21:15,097 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 235 places, 325 transitions, 1344 flow [2022-01-19 08:21:15,160 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 232 places, 325 transitions, 1322 flow, removed 10 selfloop flow, removed 3 redundant places. [2022-01-19 08:21:15,164 INFO L242 Difference]: Finished difference. Result has 241 places, 233 transitions, 836 flow [2022-01-19 08:21:15,164 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=584, PETRI_DIFFERENCE_MINUEND_PLACES=221, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=213, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=197, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=836, PETRI_PLACES=241, PETRI_TRANSITIONS=233} [2022-01-19 08:21:15,165 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 34 predicate places. [2022-01-19 08:21:15,165 INFO L470 AbstractCegarLoop]: Abstraction has has 241 places, 233 transitions, 836 flow [2022-01-19 08:21:15,166 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 186.5) internal successors, (1492), 8 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:15,166 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:15,166 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:15,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-19 08:21:15,166 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:15,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:15,167 INFO L85 PathProgramCache]: Analyzing trace with hash 934827895, now seen corresponding path program 3 times [2022-01-19 08:21:15,167 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:15,167 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1608000172] [2022-01-19 08:21:15,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:15,167 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:15,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:15,402 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:21:15,402 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:15,402 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1608000172] [2022-01-19 08:21:15,403 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1608000172] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:15,403 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:15,403 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 08:21:15,403 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1366663543] [2022-01-19 08:21:15,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:15,403 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:21:15,404 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:15,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:21:15,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-19 08:21:15,406 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 229 [2022-01-19 08:21:15,407 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 241 places, 233 transitions, 836 flow. Second operand has 8 states, 8 states have (on average 186.5) internal successors, (1492), 8 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:15,407 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:15,407 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 229 [2022-01-19 08:21:15,407 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:18,578 INFO L129 PetriNetUnfolder]: 10658/22126 cut-off events. [2022-01-19 08:21:18,579 INFO L130 PetriNetUnfolder]: For 34447/34487 co-relation queries the response was YES. [2022-01-19 08:21:18,683 INFO L84 FinitePrefix]: Finished finitePrefix Result has 57739 conditions, 22126 events. 10658/22126 cut-off events. For 34447/34487 co-relation queries the response was YES. Maximal size of possible extension queue 997. Compared 208929 event pairs, 1398 based on Foata normal form. 236/20101 useless extension candidates. Maximal degree in co-relation 57714. Up to 4916 conditions per place. [2022-01-19 08:21:18,781 INFO L132 encePairwiseOnDemand]: 216/229 looper letters, 166 selfloop transitions, 84 changer transitions 13/431 dead transitions. [2022-01-19 08:21:18,782 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 256 places, 431 transitions, 2407 flow [2022-01-19 08:21:18,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 08:21:18,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 08:21:18,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 3135 transitions. [2022-01-19 08:21:18,789 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8556222707423581 [2022-01-19 08:21:18,789 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 3135 transitions. [2022-01-19 08:21:18,789 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 3135 transitions. [2022-01-19 08:21:18,790 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:18,790 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 3135 transitions. [2022-01-19 08:21:18,796 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 195.9375) internal successors, (3135), 16 states have internal predecessors, (3135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:18,802 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 229.0) internal successors, (3893), 17 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:18,814 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 229.0) internal successors, (3893), 17 states have internal predecessors, (3893), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:18,814 INFO L186 Difference]: Start difference. First operand has 241 places, 233 transitions, 836 flow. Second operand 16 states and 3135 transitions. [2022-01-19 08:21:18,814 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 256 places, 431 transitions, 2407 flow [2022-01-19 08:21:19,033 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 252 places, 431 transitions, 2337 flow, removed 11 selfloop flow, removed 4 redundant places. [2022-01-19 08:21:19,038 INFO L242 Difference]: Finished difference. Result has 263 places, 294 transitions, 1651 flow [2022-01-19 08:21:19,039 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=802, PETRI_DIFFERENCE_MINUEND_PLACES=237, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=233, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=26, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=199, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=1651, PETRI_PLACES=263, PETRI_TRANSITIONS=294} [2022-01-19 08:21:19,040 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 56 predicate places. [2022-01-19 08:21:19,040 INFO L470 AbstractCegarLoop]: Abstraction has has 263 places, 294 transitions, 1651 flow [2022-01-19 08:21:19,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 186.5) internal successors, (1492), 8 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:19,041 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:19,041 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:19,041 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-01-19 08:21:19,041 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:19,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:19,042 INFO L85 PathProgramCache]: Analyzing trace with hash -159364171, now seen corresponding path program 4 times [2022-01-19 08:21:19,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:19,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691712813] [2022-01-19 08:21:19,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:19,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:19,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:19,462 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:21:19,463 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:19,463 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691712813] [2022-01-19 08:21:19,463 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691712813] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:19,463 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:19,463 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 08:21:19,463 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205304333] [2022-01-19 08:21:19,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:19,464 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:21:19,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:19,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:21:19,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 08:21:19,465 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 229 [2022-01-19 08:21:19,467 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 263 places, 294 transitions, 1651 flow. Second operand has 9 states, 9 states have (on average 189.66666666666666) internal successors, (1707), 9 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:19,467 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:19,467 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 229 [2022-01-19 08:21:19,467 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:23,726 INFO L129 PetriNetUnfolder]: 15536/31805 cut-off events. [2022-01-19 08:21:23,727 INFO L130 PetriNetUnfolder]: For 99348/101637 co-relation queries the response was YES. [2022-01-19 08:21:23,867 INFO L84 FinitePrefix]: Finished finitePrefix Result has 102982 conditions, 31805 events. 15536/31805 cut-off events. For 99348/101637 co-relation queries the response was YES. Maximal size of possible extension queue 1269. Compared 315638 event pairs, 1837 based on Foata normal form. 428/30049 useless extension candidates. Maximal degree in co-relation 102947. Up to 10136 conditions per place. [2022-01-19 08:21:23,989 INFO L132 encePairwiseOnDemand]: 217/229 looper letters, 212 selfloop transitions, 140 changer transitions 6/534 dead transitions. [2022-01-19 08:21:23,989 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 274 places, 534 transitions, 4389 flow [2022-01-19 08:21:23,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 08:21:23,990 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 08:21:23,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2402 transitions. [2022-01-19 08:21:23,995 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8740902474526928 [2022-01-19 08:21:23,995 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2402 transitions. [2022-01-19 08:21:23,995 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2402 transitions. [2022-01-19 08:21:23,996 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:23,996 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2402 transitions. [2022-01-19 08:21:24,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 200.16666666666666) internal successors, (2402), 12 states have internal predecessors, (2402), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:24,003 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 229.0) internal successors, (2977), 13 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:24,004 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 229.0) internal successors, (2977), 13 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:24,004 INFO L186 Difference]: Start difference. First operand has 263 places, 294 transitions, 1651 flow. Second operand 12 states and 2402 transitions. [2022-01-19 08:21:24,004 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 274 places, 534 transitions, 4389 flow [2022-01-19 08:21:24,990 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 271 places, 534 transitions, 4235 flow, removed 30 selfloop flow, removed 3 redundant places. [2022-01-19 08:21:24,995 INFO L242 Difference]: Finished difference. Result has 279 places, 385 transitions, 3236 flow [2022-01-19 08:21:24,995 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=1576, PETRI_DIFFERENCE_MINUEND_PLACES=260, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=294, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=51, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=220, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=3236, PETRI_PLACES=279, PETRI_TRANSITIONS=385} [2022-01-19 08:21:24,996 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 72 predicate places. [2022-01-19 08:21:24,996 INFO L470 AbstractCegarLoop]: Abstraction has has 279 places, 385 transitions, 3236 flow [2022-01-19 08:21:24,996 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 189.66666666666666) internal successors, (1707), 9 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:24,996 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:24,996 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:24,997 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-01-19 08:21:24,997 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:24,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:24,997 INFO L85 PathProgramCache]: Analyzing trace with hash 602522999, now seen corresponding path program 5 times [2022-01-19 08:21:24,997 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:24,997 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1977387990] [2022-01-19 08:21:24,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:24,998 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:25,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:25,229 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:21:25,229 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:25,229 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1977387990] [2022-01-19 08:21:25,230 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1977387990] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:25,230 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:25,230 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 08:21:25,230 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108991363] [2022-01-19 08:21:25,230 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:25,230 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:21:25,230 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:25,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:21:25,231 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-19 08:21:25,232 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 179 out of 229 [2022-01-19 08:21:25,233 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 279 places, 385 transitions, 3236 flow. Second operand has 9 states, 9 states have (on average 182.55555555555554) internal successors, (1643), 9 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:25,233 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:25,233 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 179 of 229 [2022-01-19 08:21:25,233 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:32,878 INFO L129 PetriNetUnfolder]: 27313/56914 cut-off events. [2022-01-19 08:21:32,878 INFO L130 PetriNetUnfolder]: For 273398/274274 co-relation queries the response was YES. [2022-01-19 08:21:33,651 INFO L84 FinitePrefix]: Finished finitePrefix Result has 212274 conditions, 56914 events. 27313/56914 cut-off events. For 273398/274274 co-relation queries the response was YES. Maximal size of possible extension queue 2708. Compared 637748 event pairs, 5089 based on Foata normal form. 517/55267 useless extension candidates. Maximal degree in co-relation 212230. Up to 13954 conditions per place. [2022-01-19 08:21:33,911 INFO L132 encePairwiseOnDemand]: 217/229 looper letters, 211 selfloop transitions, 260 changer transitions 12/650 dead transitions. [2022-01-19 08:21:33,911 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 291 places, 650 transitions, 7205 flow [2022-01-19 08:21:33,912 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 08:21:33,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 08:21:33,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2493 transitions. [2022-01-19 08:21:33,917 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8374202216996977 [2022-01-19 08:21:33,917 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2493 transitions. [2022-01-19 08:21:33,917 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2493 transitions. [2022-01-19 08:21:33,918 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:33,919 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2493 transitions. [2022-01-19 08:21:33,924 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 191.76923076923077) internal successors, (2493), 13 states have internal predecessors, (2493), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:33,928 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 229.0) internal successors, (3206), 14 states have internal predecessors, (3206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:33,928 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 229.0) internal successors, (3206), 14 states have internal predecessors, (3206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:33,928 INFO L186 Difference]: Start difference. First operand has 279 places, 385 transitions, 3236 flow. Second operand 13 states and 2493 transitions. [2022-01-19 08:21:33,928 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 291 places, 650 transitions, 7205 flow [2022-01-19 08:21:39,044 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 291 places, 650 transitions, 7189 flow, removed 8 selfloop flow, removed 0 redundant places. [2022-01-19 08:21:39,053 INFO L242 Difference]: Finished difference. Result has 300 places, 520 transitions, 6232 flow [2022-01-19 08:21:39,054 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=3228, PETRI_DIFFERENCE_MINUEND_PLACES=279, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=385, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=127, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=244, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=6232, PETRI_PLACES=300, PETRI_TRANSITIONS=520} [2022-01-19 08:21:39,054 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 93 predicate places. [2022-01-19 08:21:39,054 INFO L470 AbstractCegarLoop]: Abstraction has has 300 places, 520 transitions, 6232 flow [2022-01-19 08:21:39,055 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 182.55555555555554) internal successors, (1643), 9 states have internal predecessors, (1643), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:39,055 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:21:39,055 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:21:39,055 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-01-19 08:21:39,055 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:21:39,055 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:21:39,056 INFO L85 PathProgramCache]: Analyzing trace with hash 676680977, now seen corresponding path program 6 times [2022-01-19 08:21:39,056 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:21:39,056 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1542523837] [2022-01-19 08:21:39,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:21:39,056 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:21:39,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:21:39,322 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:21:39,323 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:21:39,323 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1542523837] [2022-01-19 08:21:39,323 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1542523837] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:21:39,323 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:21:39,323 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 08:21:39,323 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806204084] [2022-01-19 08:21:39,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:21:39,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:21:39,324 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:21:39,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:21:39,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-19 08:21:39,325 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 229 [2022-01-19 08:21:39,326 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 520 transitions, 6232 flow. Second operand has 8 states, 8 states have (on average 186.5) internal successors, (1492), 8 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:39,326 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:21:39,326 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 229 [2022-01-19 08:21:39,327 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:21:51,868 INFO L129 PetriNetUnfolder]: 35426/75503 cut-off events. [2022-01-19 08:21:51,868 INFO L130 PetriNetUnfolder]: For 509651/512813 co-relation queries the response was YES. [2022-01-19 08:21:52,618 INFO L84 FinitePrefix]: Finished finitePrefix Result has 307952 conditions, 75503 events. 35426/75503 cut-off events. For 509651/512813 co-relation queries the response was YES. Maximal size of possible extension queue 3393. Compared 894010 event pairs, 7687 based on Foata normal form. 595/72404 useless extension candidates. Maximal degree in co-relation 307898. Up to 21853 conditions per place. [2022-01-19 08:21:52,842 INFO L132 encePairwiseOnDemand]: 219/229 looper letters, 202 selfloop transitions, 362 changer transitions 49/787 dead transitions. [2022-01-19 08:21:52,842 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 310 places, 787 transitions, 11218 flow [2022-01-19 08:21:52,851 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 08:21:52,851 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 08:21:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2163 transitions. [2022-01-19 08:21:52,857 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8586740770146883 [2022-01-19 08:21:52,857 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2163 transitions. [2022-01-19 08:21:52,857 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2163 transitions. [2022-01-19 08:21:52,859 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:21:52,859 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2163 transitions. [2022-01-19 08:21:52,862 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 196.63636363636363) internal successors, (2163), 11 states have internal predecessors, (2163), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:52,866 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 229.0) internal successors, (2748), 12 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:52,866 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 229.0) internal successors, (2748), 12 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:21:52,866 INFO L186 Difference]: Start difference. First operand has 300 places, 520 transitions, 6232 flow. Second operand 11 states and 2163 transitions. [2022-01-19 08:21:52,866 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 310 places, 787 transitions, 11218 flow [2022-01-19 08:22:04,775 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 308 places, 787 transitions, 10970 flow, removed 22 selfloop flow, removed 2 redundant places. [2022-01-19 08:22:04,785 INFO L242 Difference]: Finished difference. Result has 315 places, 651 transitions, 9675 flow [2022-01-19 08:22:04,785 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=6067, PETRI_DIFFERENCE_MINUEND_PLACES=298, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=520, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=238, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=266, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=9675, PETRI_PLACES=315, PETRI_TRANSITIONS=651} [2022-01-19 08:22:04,786 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 108 predicate places. [2022-01-19 08:22:04,786 INFO L470 AbstractCegarLoop]: Abstraction has has 315 places, 651 transitions, 9675 flow [2022-01-19 08:22:04,786 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 186.5) internal successors, (1492), 8 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:04,786 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:22:04,786 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:04,787 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-01-19 08:22:04,787 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:22:04,787 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:22:04,787 INFO L85 PathProgramCache]: Analyzing trace with hash -597986911, now seen corresponding path program 7 times [2022-01-19 08:22:04,787 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:22:04,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1109485103] [2022-01-19 08:22:04,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:22:04,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:22:04,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:22:05,038 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:22:05,038 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:22:05,038 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1109485103] [2022-01-19 08:22:05,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1109485103] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:22:05,038 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:22:05,038 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2022-01-19 08:22:05,038 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845264880] [2022-01-19 08:22:05,038 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:22:05,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-01-19 08:22:05,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:22:05,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-01-19 08:22:05,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2022-01-19 08:22:05,041 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 229 [2022-01-19 08:22:05,042 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 315 places, 651 transitions, 9675 flow. Second operand has 10 states, 10 states have (on average 185.8) internal successors, (1858), 10 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:05,042 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:22:05,042 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 229 [2022-01-19 08:22:05,042 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:22:15,100 INFO L129 PetriNetUnfolder]: 25121/56828 cut-off events. [2022-01-19 08:22:15,100 INFO L130 PetriNetUnfolder]: For 407022/408508 co-relation queries the response was YES. [2022-01-19 08:22:15,681 INFO L84 FinitePrefix]: Finished finitePrefix Result has 245570 conditions, 56828 events. 25121/56828 cut-off events. For 407022/408508 co-relation queries the response was YES. Maximal size of possible extension queue 2498. Compared 667594 event pairs, 6666 based on Foata normal form. 794/55615 useless extension candidates. Maximal degree in co-relation 245509. Up to 18104 conditions per place. [2022-01-19 08:22:15,861 INFO L132 encePairwiseOnDemand]: 220/229 looper letters, 201 selfloop transitions, 372 changer transitions 49/796 dead transitions. [2022-01-19 08:22:15,861 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 322 places, 796 transitions, 13450 flow [2022-01-19 08:22:15,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 08:22:15,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 08:22:15,863 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1558 transitions. [2022-01-19 08:22:15,863 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8504366812227074 [2022-01-19 08:22:15,864 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1558 transitions. [2022-01-19 08:22:15,864 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1558 transitions. [2022-01-19 08:22:15,864 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:22:15,864 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1558 transitions. [2022-01-19 08:22:15,866 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 194.75) internal successors, (1558), 8 states have internal predecessors, (1558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:15,868 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 229.0) internal successors, (2061), 9 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:15,869 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 229.0) internal successors, (2061), 9 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:15,869 INFO L186 Difference]: Start difference. First operand has 315 places, 651 transitions, 9675 flow. Second operand 8 states and 1558 transitions. [2022-01-19 08:22:15,869 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 322 places, 796 transitions, 13450 flow [2022-01-19 08:22:23,150 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 320 places, 796 transitions, 13123 flow, removed 21 selfloop flow, removed 2 redundant places. [2022-01-19 08:22:23,161 INFO L242 Difference]: Finished difference. Result has 323 places, 700 transitions, 11595 flow [2022-01-19 08:22:23,162 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=9436, PETRI_DIFFERENCE_MINUEND_PLACES=313, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=651, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=319, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=329, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=11595, PETRI_PLACES=323, PETRI_TRANSITIONS=700} [2022-01-19 08:22:23,162 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 116 predicate places. [2022-01-19 08:22:23,162 INFO L470 AbstractCegarLoop]: Abstraction has has 323 places, 700 transitions, 11595 flow [2022-01-19 08:22:23,163 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 185.8) internal successors, (1858), 10 states have internal predecessors, (1858), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:23,163 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:22:23,163 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:23,163 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2022-01-19 08:22:23,163 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:22:23,163 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:22:23,163 INFO L85 PathProgramCache]: Analyzing trace with hash -1046237929, now seen corresponding path program 8 times [2022-01-19 08:22:23,163 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:22:23,164 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527410274] [2022-01-19 08:22:23,164 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:22:23,164 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:22:23,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:22:23,318 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:22:23,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:22:23,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527410274] [2022-01-19 08:22:23,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527410274] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:22:23,319 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:22:23,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 08:22:23,319 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2050113416] [2022-01-19 08:22:23,319 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:22:23,319 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 08:22:23,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:22:23,320 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 08:22:23,320 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 08:22:23,321 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 229 [2022-01-19 08:22:23,322 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 323 places, 700 transitions, 11595 flow. Second operand has 7 states, 7 states have (on average 190.42857142857142) internal successors, (1333), 7 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:23,322 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:22:23,322 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 229 [2022-01-19 08:22:23,322 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:22:36,490 INFO L129 PetriNetUnfolder]: 32589/71415 cut-off events. [2022-01-19 08:22:36,490 INFO L130 PetriNetUnfolder]: For 564314/567361 co-relation queries the response was YES. [2022-01-19 08:22:37,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 307673 conditions, 71415 events. 32589/71415 cut-off events. For 564314/567361 co-relation queries the response was YES. Maximal size of possible extension queue 3114. Compared 853237 event pairs, 8219 based on Foata normal form. 524/69027 useless extension candidates. Maximal degree in co-relation 307608. Up to 17915 conditions per place. [2022-01-19 08:22:37,494 INFO L132 encePairwiseOnDemand]: 218/229 looper letters, 173 selfloop transitions, 436 changer transitions 12/800 dead transitions. [2022-01-19 08:22:37,495 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 332 places, 800 transitions, 13517 flow [2022-01-19 08:22:37,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 08:22:37,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 08:22:37,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 2003 transitions. [2022-01-19 08:22:37,497 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8746724890829695 [2022-01-19 08:22:37,497 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 2003 transitions. [2022-01-19 08:22:37,498 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 2003 transitions. [2022-01-19 08:22:37,498 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:22:37,498 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 2003 transitions. [2022-01-19 08:22:37,501 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 200.3) internal successors, (2003), 10 states have internal predecessors, (2003), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:37,503 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 229.0) internal successors, (2519), 11 states have internal predecessors, (2519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:37,504 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 229.0) internal successors, (2519), 11 states have internal predecessors, (2519), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:37,504 INFO L186 Difference]: Start difference. First operand has 323 places, 700 transitions, 11595 flow. Second operand 10 states and 2003 transitions. [2022-01-19 08:22:37,504 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 332 places, 800 transitions, 13517 flow [2022-01-19 08:22:48,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 329 places, 800 transitions, 13079 flow, removed 2 selfloop flow, removed 3 redundant places. [2022-01-19 08:22:48,687 INFO L242 Difference]: Finished difference. Result has 335 places, 717 transitions, 12690 flow [2022-01-19 08:22:48,688 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=11157, PETRI_DIFFERENCE_MINUEND_PLACES=320, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=700, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=420, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=272, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=12690, PETRI_PLACES=335, PETRI_TRANSITIONS=717} [2022-01-19 08:22:48,689 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 128 predicate places. [2022-01-19 08:22:48,689 INFO L470 AbstractCegarLoop]: Abstraction has has 335 places, 717 transitions, 12690 flow [2022-01-19 08:22:48,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 190.42857142857142) internal successors, (1333), 7 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:48,689 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:22:48,689 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:22:48,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-01-19 08:22:48,690 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:22:48,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:22:48,690 INFO L85 PathProgramCache]: Analyzing trace with hash 886203133, now seen corresponding path program 9 times [2022-01-19 08:22:48,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:22:48,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1320676145] [2022-01-19 08:22:48,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:22:48,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:22:48,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:22:48,894 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:22:48,895 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:22:48,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1320676145] [2022-01-19 08:22:48,895 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1320676145] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:22:48,895 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:22:48,895 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 08:22:48,895 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084756720] [2022-01-19 08:22:48,895 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:22:48,896 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:22:48,896 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:22:48,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:22:48,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-19 08:22:48,897 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 229 [2022-01-19 08:22:48,898 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 335 places, 717 transitions, 12690 flow. Second operand has 8 states, 8 states have (on average 186.5) internal successors, (1492), 8 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:22:48,898 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:22:48,898 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 229 [2022-01-19 08:22:48,898 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:23:04,670 INFO L129 PetriNetUnfolder]: 39095/82105 cut-off events. [2022-01-19 08:23:04,670 INFO L130 PetriNetUnfolder]: For 812101/817103 co-relation queries the response was YES. [2022-01-19 08:23:05,744 INFO L84 FinitePrefix]: Finished finitePrefix Result has 364559 conditions, 82105 events. 39095/82105 cut-off events. For 812101/817103 co-relation queries the response was YES. Maximal size of possible extension queue 3479. Compared 967967 event pairs, 8136 based on Foata normal form. 1428/80342 useless extension candidates. Maximal degree in co-relation 364488. Up to 18834 conditions per place. [2022-01-19 08:23:05,970 INFO L132 encePairwiseOnDemand]: 219/229 looper letters, 247 selfloop transitions, 414 changer transitions 30/866 dead transitions. [2022-01-19 08:23:05,970 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 346 places, 866 transitions, 14642 flow [2022-01-19 08:23:05,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 08:23:05,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 08:23:05,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2358 transitions. [2022-01-19 08:23:05,973 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8580786026200873 [2022-01-19 08:23:05,973 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2358 transitions. [2022-01-19 08:23:05,973 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2358 transitions. [2022-01-19 08:23:05,974 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:23:05,974 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2358 transitions. [2022-01-19 08:23:05,977 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 196.5) internal successors, (2358), 12 states have internal predecessors, (2358), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:23:05,979 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 229.0) internal successors, (2977), 13 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:23:05,980 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 229.0) internal successors, (2977), 13 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:23:05,980 INFO L186 Difference]: Start difference. First operand has 335 places, 717 transitions, 12690 flow. Second operand 12 states and 2358 transitions. [2022-01-19 08:23:05,980 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 346 places, 866 transitions, 14642 flow [2022-01-19 08:23:21,266 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 343 places, 866 transitions, 14107 flow, removed 35 selfloop flow, removed 3 redundant places. [2022-01-19 08:23:21,279 INFO L242 Difference]: Finished difference. Result has 350 places, 727 transitions, 12759 flow [2022-01-19 08:23:21,279 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=10709, PETRI_DIFFERENCE_MINUEND_PLACES=332, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=661, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=341, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=294, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=12759, PETRI_PLACES=350, PETRI_TRANSITIONS=727} [2022-01-19 08:23:21,280 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 143 predicate places. [2022-01-19 08:23:21,280 INFO L470 AbstractCegarLoop]: Abstraction has has 350 places, 727 transitions, 12759 flow [2022-01-19 08:23:21,280 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 186.5) internal successors, (1492), 8 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:23:21,280 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:23:21,280 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:23:21,280 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-01-19 08:23:21,281 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:23:21,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:23:21,281 INFO L85 PathProgramCache]: Analyzing trace with hash 1531003059, now seen corresponding path program 10 times [2022-01-19 08:23:21,281 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:23:21,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1424817514] [2022-01-19 08:23:21,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:23:21,281 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:23:21,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:23:21,447 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:23:21,447 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:23:21,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1424817514] [2022-01-19 08:23:21,449 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1424817514] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:23:21,449 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:23:21,449 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 08:23:21,449 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2044515327] [2022-01-19 08:23:21,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:23:21,450 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:23:21,450 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:23:21,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:23:21,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-19 08:23:21,452 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 229 [2022-01-19 08:23:21,453 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 350 places, 727 transitions, 12759 flow. Second operand has 9 states, 9 states have (on average 189.66666666666666) internal successors, (1707), 9 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:23:21,453 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:23:21,453 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 229 [2022-01-19 08:23:21,453 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:23:35,178 INFO L129 PetriNetUnfolder]: 28254/62407 cut-off events. [2022-01-19 08:23:35,178 INFO L130 PetriNetUnfolder]: For 653330/656751 co-relation queries the response was YES. [2022-01-19 08:23:36,055 INFO L84 FinitePrefix]: Finished finitePrefix Result has 298320 conditions, 62407 events. 28254/62407 cut-off events. For 653330/656751 co-relation queries the response was YES. Maximal size of possible extension queue 2614. Compared 732112 event pairs, 8046 based on Foata normal form. 559/61035 useless extension candidates. Maximal degree in co-relation 298242. Up to 21066 conditions per place. [2022-01-19 08:23:36,257 INFO L132 encePairwiseOnDemand]: 219/229 looper letters, 241 selfloop transitions, 345 changer transitions 36/801 dead transitions. [2022-01-19 08:23:36,258 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 357 places, 801 transitions, 14734 flow [2022-01-19 08:23:36,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-01-19 08:23:36,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-01-19 08:23:36,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 1587 transitions. [2022-01-19 08:23:36,259 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8662663755458515 [2022-01-19 08:23:36,259 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 1587 transitions. [2022-01-19 08:23:36,259 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 1587 transitions. [2022-01-19 08:23:36,260 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:23:36,260 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 1587 transitions. [2022-01-19 08:23:36,262 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 198.375) internal successors, (1587), 8 states have internal predecessors, (1587), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:23:36,264 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 229.0) internal successors, (2061), 9 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:23:36,264 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 229.0) internal successors, (2061), 9 states have internal predecessors, (2061), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:23:36,264 INFO L186 Difference]: Start difference. First operand has 350 places, 727 transitions, 12759 flow. Second operand 8 states and 1587 transitions. [2022-01-19 08:23:36,264 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 357 places, 801 transitions, 14734 flow [2022-01-19 08:23:45,755 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 355 places, 801 transitions, 14474 flow, removed 36 selfloop flow, removed 2 redundant places. [2022-01-19 08:23:45,767 INFO L242 Difference]: Finished difference. Result has 357 places, 724 transitions, 13179 flow [2022-01-19 08:23:45,768 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=12468, PETRI_DIFFERENCE_MINUEND_PLACES=348, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=725, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=345, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=380, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=13179, PETRI_PLACES=357, PETRI_TRANSITIONS=724} [2022-01-19 08:23:45,768 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 150 predicate places. [2022-01-19 08:23:45,768 INFO L470 AbstractCegarLoop]: Abstraction has has 357 places, 724 transitions, 13179 flow [2022-01-19 08:23:45,769 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 189.66666666666666) internal successors, (1707), 9 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:23:45,769 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:23:45,769 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:23:45,769 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-01-19 08:23:45,769 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:23:45,769 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:23:45,770 INFO L85 PathProgramCache]: Analyzing trace with hash -804422253, now seen corresponding path program 11 times [2022-01-19 08:23:45,770 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:23:45,770 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [92500476] [2022-01-19 08:23:45,770 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:23:45,770 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:23:45,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:23:45,999 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:23:45,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:23:45,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [92500476] [2022-01-19 08:23:45,999 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [92500476] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:23:45,999 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:23:45,999 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 08:23:46,000 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094805934] [2022-01-19 08:23:46,000 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:23:46,000 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:23:46,000 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:23:46,000 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:23:46,000 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-19 08:23:46,001 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 229 [2022-01-19 08:23:46,002 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 357 places, 724 transitions, 13179 flow. Second operand has 8 states, 8 states have (on average 186.5) internal successors, (1492), 8 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:23:46,002 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:23:46,003 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 229 [2022-01-19 08:23:46,003 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:24:01,742 INFO L129 PetriNetUnfolder]: 37317/79097 cut-off events. [2022-01-19 08:24:01,743 INFO L130 PetriNetUnfolder]: For 830811/833621 co-relation queries the response was YES. [2022-01-19 08:24:03,215 INFO L84 FinitePrefix]: Finished finitePrefix Result has 366892 conditions, 79097 events. 37317/79097 cut-off events. For 830811/833621 co-relation queries the response was YES. Maximal size of possible extension queue 3346. Compared 934859 event pairs, 9900 based on Foata normal form. 330/76458 useless extension candidates. Maximal degree in co-relation 366811. Up to 25142 conditions per place. [2022-01-19 08:24:03,434 INFO L132 encePairwiseOnDemand]: 220/229 looper letters, 226 selfloop transitions, 311 changer transitions 16/728 dead transitions. [2022-01-19 08:24:03,434 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 362 places, 728 transitions, 13284 flow [2022-01-19 08:24:03,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 08:24:03,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 08:24:03,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1380 transitions. [2022-01-19 08:24:03,436 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.860885839051778 [2022-01-19 08:24:03,436 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1380 transitions. [2022-01-19 08:24:03,436 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1380 transitions. [2022-01-19 08:24:03,436 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:24:03,436 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1380 transitions. [2022-01-19 08:24:03,437 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 197.14285714285714) internal successors, (1380), 7 states have internal predecessors, (1380), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:03,439 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 229.0) internal successors, (1832), 8 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:03,439 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 229.0) internal successors, (1832), 8 states have internal predecessors, (1832), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:03,439 INFO L186 Difference]: Start difference. First operand has 357 places, 724 transitions, 13179 flow. Second operand 7 states and 1380 transitions. [2022-01-19 08:24:03,439 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 362 places, 728 transitions, 13284 flow [2022-01-19 08:24:18,564 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 356 places, 728 transitions, 12839 flow, removed 4 selfloop flow, removed 6 redundant places. [2022-01-19 08:24:18,574 INFO L242 Difference]: Finished difference. Result has 358 places, 683 transitions, 12143 flow [2022-01-19 08:24:18,574 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=11426, PETRI_DIFFERENCE_MINUEND_PLACES=350, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=682, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=310, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=371, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=12143, PETRI_PLACES=358, PETRI_TRANSITIONS=683} [2022-01-19 08:24:18,574 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 151 predicate places. [2022-01-19 08:24:18,575 INFO L470 AbstractCegarLoop]: Abstraction has has 358 places, 683 transitions, 12143 flow [2022-01-19 08:24:18,575 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 186.5) internal successors, (1492), 8 states have internal predecessors, (1492), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:18,575 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:24:18,575 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:18,575 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-01-19 08:24:18,576 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:24:18,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:24:18,576 INFO L85 PathProgramCache]: Analyzing trace with hash 272469073, now seen corresponding path program 12 times [2022-01-19 08:24:18,576 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:24:18,576 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990612219] [2022-01-19 08:24:18,576 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:24:18,576 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:24:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:24:18,770 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:24:18,770 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:24:18,770 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990612219] [2022-01-19 08:24:18,770 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990612219] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:24:18,770 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:24:18,770 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 08:24:18,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334437615] [2022-01-19 08:24:18,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:24:18,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:24:18,771 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:24:18,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:24:18,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2022-01-19 08:24:18,773 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 229 [2022-01-19 08:24:18,774 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 358 places, 683 transitions, 12143 flow. Second operand has 9 states, 9 states have (on average 189.66666666666666) internal successors, (1707), 9 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:18,774 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:24:18,774 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 229 [2022-01-19 08:24:18,774 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:24:29,674 INFO L129 PetriNetUnfolder]: 26062/55703 cut-off events. [2022-01-19 08:24:29,674 INFO L130 PetriNetUnfolder]: For 497044/499839 co-relation queries the response was YES. [2022-01-19 08:24:30,686 INFO L84 FinitePrefix]: Finished finitePrefix Result has 260088 conditions, 55703 events. 26062/55703 cut-off events. For 497044/499839 co-relation queries the response was YES. Maximal size of possible extension queue 2249. Compared 626944 event pairs, 5827 based on Foata normal form. 329/54502 useless extension candidates. Maximal degree in co-relation 260006. Up to 18517 conditions per place. [2022-01-19 08:24:30,852 INFO L132 encePairwiseOnDemand]: 218/229 looper letters, 338 selfloop transitions, 323 changer transitions 36/876 dead transitions. [2022-01-19 08:24:30,853 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 368 places, 876 transitions, 15335 flow [2022-01-19 08:24:30,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 08:24:30,853 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 08:24:30,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2194 transitions. [2022-01-19 08:24:30,854 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8709805478364431 [2022-01-19 08:24:30,854 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2194 transitions. [2022-01-19 08:24:30,854 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2194 transitions. [2022-01-19 08:24:30,855 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:24:30,855 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2194 transitions. [2022-01-19 08:24:30,857 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 199.45454545454547) internal successors, (2194), 11 states have internal predecessors, (2194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:30,858 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 229.0) internal successors, (2748), 12 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:30,858 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 229.0) internal successors, (2748), 12 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:30,859 INFO L186 Difference]: Start difference. First operand has 358 places, 683 transitions, 12143 flow. Second operand 11 states and 2194 transitions. [2022-01-19 08:24:30,859 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 368 places, 876 transitions, 15335 flow [2022-01-19 08:24:35,677 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 363 places, 876 transitions, 14754 flow, removed 8 selfloop flow, removed 5 redundant places. [2022-01-19 08:24:35,688 INFO L242 Difference]: Finished difference. Result has 367 places, 687 transitions, 12290 flow [2022-01-19 08:24:35,688 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=11146, PETRI_DIFFERENCE_MINUEND_PLACES=353, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=670, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=307, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=348, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=12290, PETRI_PLACES=367, PETRI_TRANSITIONS=687} [2022-01-19 08:24:35,688 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 160 predicate places. [2022-01-19 08:24:35,688 INFO L470 AbstractCegarLoop]: Abstraction has has 367 places, 687 transitions, 12290 flow [2022-01-19 08:24:35,689 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 189.66666666666666) internal successors, (1707), 9 states have internal predecessors, (1707), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:35,689 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:24:35,689 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:35,689 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2022-01-19 08:24:35,689 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:24:35,689 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:24:35,690 INFO L85 PathProgramCache]: Analyzing trace with hash 1533159283, now seen corresponding path program 13 times [2022-01-19 08:24:35,690 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:24:35,690 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1178857682] [2022-01-19 08:24:35,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:24:35,690 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:24:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:24:35,918 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:24:35,918 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:24:35,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1178857682] [2022-01-19 08:24:35,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1178857682] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:24:35,918 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:24:35,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 08:24:35,919 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188702171] [2022-01-19 08:24:35,919 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:24:35,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:24:35,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:24:35,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:24:35,919 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2022-01-19 08:24:35,920 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 229 [2022-01-19 08:24:35,921 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 367 places, 687 transitions, 12290 flow. Second operand has 9 states, 9 states have (on average 186.11111111111111) internal successors, (1675), 9 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:35,921 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:24:35,921 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 229 [2022-01-19 08:24:35,922 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:24:48,902 INFO L129 PetriNetUnfolder]: 29375/62907 cut-off events. [2022-01-19 08:24:48,902 INFO L130 PetriNetUnfolder]: For 668123/670573 co-relation queries the response was YES. [2022-01-19 08:24:49,814 INFO L84 FinitePrefix]: Finished finitePrefix Result has 314816 conditions, 62907 events. 29375/62907 cut-off events. For 668123/670573 co-relation queries the response was YES. Maximal size of possible extension queue 2793. Compared 721184 event pairs, 8179 based on Foata normal form. 688/61595 useless extension candidates. Maximal degree in co-relation 314731. Up to 22241 conditions per place. [2022-01-19 08:24:50,000 INFO L132 encePairwiseOnDemand]: 217/229 looper letters, 388 selfloop transitions, 497 changer transitions 9/1076 dead transitions. [2022-01-19 08:24:50,001 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 378 places, 1076 transitions, 20954 flow [2022-01-19 08:24:50,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 08:24:50,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 08:24:50,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2531 transitions. [2022-01-19 08:24:50,003 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8501847497480686 [2022-01-19 08:24:50,003 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2531 transitions. [2022-01-19 08:24:50,003 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2531 transitions. [2022-01-19 08:24:50,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:24:50,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2531 transitions. [2022-01-19 08:24:50,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 194.69230769230768) internal successors, (2531), 13 states have internal predecessors, (2531), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:50,008 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 229.0) internal successors, (3206), 14 states have internal predecessors, (3206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:50,008 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 229.0) internal successors, (3206), 14 states have internal predecessors, (3206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:50,008 INFO L186 Difference]: Start difference. First operand has 367 places, 687 transitions, 12290 flow. Second operand 13 states and 2531 transitions. [2022-01-19 08:24:50,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 378 places, 1076 transitions, 20954 flow [2022-01-19 08:24:59,048 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 373 places, 1076 transitions, 20315 flow, removed 32 selfloop flow, removed 5 redundant places. [2022-01-19 08:24:59,064 INFO L242 Difference]: Finished difference. Result has 378 places, 861 transitions, 17574 flow [2022-01-19 08:24:59,065 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=11864, PETRI_DIFFERENCE_MINUEND_PLACES=361, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=687, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=323, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=358, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=17574, PETRI_PLACES=378, PETRI_TRANSITIONS=861} [2022-01-19 08:24:59,065 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 171 predicate places. [2022-01-19 08:24:59,065 INFO L470 AbstractCegarLoop]: Abstraction has has 378 places, 861 transitions, 17574 flow [2022-01-19 08:24:59,066 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.11111111111111) internal successors, (1675), 9 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:59,066 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:24:59,066 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:24:59,066 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2022-01-19 08:24:59,066 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:24:59,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:24:59,066 INFO L85 PathProgramCache]: Analyzing trace with hash -305017773, now seen corresponding path program 14 times [2022-01-19 08:24:59,066 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:24:59,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979339658] [2022-01-19 08:24:59,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:24:59,067 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:24:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:24:59,264 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:24:59,264 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:24:59,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979339658] [2022-01-19 08:24:59,265 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979339658] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:24:59,265 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:24:59,265 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 08:24:59,265 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1287440309] [2022-01-19 08:24:59,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:24:59,265 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:24:59,265 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:24:59,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:24:59,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-01-19 08:24:59,267 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 229 [2022-01-19 08:24:59,267 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 378 places, 861 transitions, 17574 flow. Second operand has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:24:59,267 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:24:59,268 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 229 [2022-01-19 08:24:59,268 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:25:15,023 INFO L129 PetriNetUnfolder]: 32060/69621 cut-off events. [2022-01-19 08:25:15,023 INFO L130 PetriNetUnfolder]: For 778350/783084 co-relation queries the response was YES. [2022-01-19 08:25:16,144 INFO L84 FinitePrefix]: Finished finitePrefix Result has 359375 conditions, 69621 events. 32060/69621 cut-off events. For 778350/783084 co-relation queries the response was YES. Maximal size of possible extension queue 2908. Compared 813541 event pairs, 9552 based on Foata normal form. 373/67821 useless extension candidates. Maximal degree in co-relation 359285. Up to 23252 conditions per place. [2022-01-19 08:25:16,380 INFO L132 encePairwiseOnDemand]: 219/229 looper letters, 346 selfloop transitions, 455 changer transitions 23/1003 dead transitions. [2022-01-19 08:25:16,380 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 388 places, 1003 transitions, 20638 flow [2022-01-19 08:25:16,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 08:25:16,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 08:25:16,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 2188 transitions. [2022-01-19 08:25:16,382 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.868598650258039 [2022-01-19 08:25:16,382 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 2188 transitions. [2022-01-19 08:25:16,382 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 2188 transitions. [2022-01-19 08:25:16,382 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:25:16,383 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 2188 transitions. [2022-01-19 08:25:16,384 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 198.9090909090909) internal successors, (2188), 11 states have internal predecessors, (2188), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:25:16,386 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 229.0) internal successors, (2748), 12 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:25:16,386 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 229.0) internal successors, (2748), 12 states have internal predecessors, (2748), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:25:16,386 INFO L186 Difference]: Start difference. First operand has 378 places, 861 transitions, 17574 flow. Second operand 11 states and 2188 transitions. [2022-01-19 08:25:16,386 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 388 places, 1003 transitions, 20638 flow [2022-01-19 08:25:29,101 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 384 places, 1003 transitions, 20322 flow, removed 4 selfloop flow, removed 4 redundant places. [2022-01-19 08:25:29,117 INFO L242 Difference]: Finished difference. Result has 390 places, 870 transitions, 18647 flow [2022-01-19 08:25:29,118 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=17273, PETRI_DIFFERENCE_MINUEND_PLACES=374, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=861, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=447, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=410, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=18647, PETRI_PLACES=390, PETRI_TRANSITIONS=870} [2022-01-19 08:25:29,118 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 183 predicate places. [2022-01-19 08:25:29,118 INFO L470 AbstractCegarLoop]: Abstraction has has 390 places, 870 transitions, 18647 flow [2022-01-19 08:25:29,118 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:25:29,118 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:25:29,119 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:25:29,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2022-01-19 08:25:29,119 INFO L402 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:25:29,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:25:29,119 INFO L85 PathProgramCache]: Analyzing trace with hash -720344227, now seen corresponding path program 15 times [2022-01-19 08:25:29,119 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:25:29,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [872134815] [2022-01-19 08:25:29,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:25:29,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:25:29,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:25:29,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:25:29,316 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:25:29,316 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [872134815] [2022-01-19 08:25:29,317 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [872134815] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:25:29,317 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:25:29,317 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 08:25:29,317 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [270230530] [2022-01-19 08:25:29,317 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:25:29,317 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:25:29,317 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:25:29,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:25:29,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2022-01-19 08:25:29,319 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 229 [2022-01-19 08:25:29,320 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 390 places, 870 transitions, 18647 flow. Second operand has 9 states, 9 states have (on average 186.11111111111111) internal successors, (1675), 9 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:25:29,320 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:25:29,320 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 229 [2022-01-19 08:25:29,320 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:25:48,389 INFO L129 PetriNetUnfolder]: 34479/75002 cut-off events. [2022-01-19 08:25:48,389 INFO L130 PetriNetUnfolder]: For 887086/890531 co-relation queries the response was YES. [2022-01-19 08:25:49,716 INFO L84 FinitePrefix]: Finished finitePrefix Result has 392474 conditions, 75002 events. 34479/75002 cut-off events. For 887086/890531 co-relation queries the response was YES. Maximal size of possible extension queue 3331. Compared 892634 event pairs, 10380 based on Foata normal form. 314/72391 useless extension candidates. Maximal degree in co-relation 392379. Up to 24941 conditions per place. [2022-01-19 08:25:49,959 INFO L132 encePairwiseOnDemand]: 218/229 looper letters, 434 selfloop transitions, 685 changer transitions 21/1326 dead transitions. [2022-01-19 08:25:49,959 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 402 places, 1326 transitions, 30736 flow [2022-01-19 08:25:49,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-01-19 08:25:49,960 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2022-01-19 08:25:49,961 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 2536 transitions. [2022-01-19 08:25:49,961 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8518642929123278 [2022-01-19 08:25:49,961 INFO L72 ComplementDD]: Start complementDD. Operand 13 states and 2536 transitions. [2022-01-19 08:25:49,961 INFO L73 IsDeterministic]: Start isDeterministic. Operand 13 states and 2536 transitions. [2022-01-19 08:25:49,962 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:25:49,962 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 13 states and 2536 transitions. [2022-01-19 08:25:49,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 14 states, 13 states have (on average 195.07692307692307) internal successors, (2536), 13 states have internal predecessors, (2536), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:25:49,967 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 14 states, 14 states have (on average 229.0) internal successors, (3206), 14 states have internal predecessors, (3206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:25:49,967 INFO L81 ComplementDD]: Finished complementDD. Result has 14 states, 14 states have (on average 229.0) internal successors, (3206), 14 states have internal predecessors, (3206), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:25:49,967 INFO L186 Difference]: Start difference. First operand has 390 places, 870 transitions, 18647 flow. Second operand 13 states and 2536 transitions. [2022-01-19 08:25:49,967 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 402 places, 1326 transitions, 30736 flow [2022-01-19 08:26:05,316 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 398 places, 1326 transitions, 29575 flow, removed 23 selfloop flow, removed 4 redundant places. [2022-01-19 08:26:05,336 INFO L242 Difference]: Finished difference. Result has 405 places, 1096 transitions, 26852 flow [2022-01-19 08:26:05,336 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=17903, PETRI_DIFFERENCE_MINUEND_PLACES=386, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=870, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=463, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=393, PETRI_DIFFERENCE_SUBTRAHEND_STATES=13, PETRI_FLOW=26852, PETRI_PLACES=405, PETRI_TRANSITIONS=1096} [2022-01-19 08:26:05,337 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 198 predicate places. [2022-01-19 08:26:05,337 INFO L470 AbstractCegarLoop]: Abstraction has has 405 places, 1096 transitions, 26852 flow [2022-01-19 08:26:05,337 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.11111111111111) internal successors, (1675), 9 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:26:05,337 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:26:05,337 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:26:05,337 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2022-01-19 08:26:05,337 INFO L402 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:26:05,337 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:26:05,338 INFO L85 PathProgramCache]: Analyzing trace with hash -1839716487, now seen corresponding path program 16 times [2022-01-19 08:26:05,338 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:26:05,338 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553612998] [2022-01-19 08:26:05,338 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:26:05,338 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:26:05,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:26:05,522 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:26:05,522 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:26:05,522 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553612998] [2022-01-19 08:26:05,523 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553612998] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:26:05,523 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:26:05,523 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 08:26:05,523 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [96684613] [2022-01-19 08:26:05,523 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:26:05,523 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 08:26:05,523 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:26:05,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 08:26:05,524 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2022-01-19 08:26:05,525 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 229 [2022-01-19 08:26:05,525 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 1096 transitions, 26852 flow. Second operand has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:26:05,525 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:26:05,526 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 229 [2022-01-19 08:26:05,526 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:26:31,743 INFO L129 PetriNetUnfolder]: 44857/96729 cut-off events. [2022-01-19 08:26:31,744 INFO L130 PetriNetUnfolder]: For 1354829/1361693 co-relation queries the response was YES. [2022-01-19 08:26:34,139 INFO L84 FinitePrefix]: Finished finitePrefix Result has 555881 conditions, 96729 events. 44857/96729 cut-off events. For 1354829/1361693 co-relation queries the response was YES. Maximal size of possible extension queue 4189. Compared 1171879 event pairs, 11761 based on Foata normal form. 1080/94914 useless extension candidates. Maximal degree in co-relation 555780. Up to 30939 conditions per place. [2022-01-19 08:26:34,522 INFO L132 encePairwiseOnDemand]: 219/229 looper letters, 470 selfloop transitions, 1028 changer transitions 4/1683 dead transitions. [2022-01-19 08:26:34,523 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 416 places, 1683 transitions, 43017 flow [2022-01-19 08:26:34,523 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 08:26:34,523 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 08:26:34,524 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2385 transitions. [2022-01-19 08:26:34,524 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8679039301310044 [2022-01-19 08:26:34,525 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2385 transitions. [2022-01-19 08:26:34,525 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2385 transitions. [2022-01-19 08:26:34,525 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:26:34,525 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2385 transitions. [2022-01-19 08:26:34,528 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 198.75) internal successors, (2385), 12 states have internal predecessors, (2385), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:26:34,530 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 229.0) internal successors, (2977), 13 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:26:34,530 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 229.0) internal successors, (2977), 13 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:26:34,530 INFO L186 Difference]: Start difference. First operand has 405 places, 1096 transitions, 26852 flow. Second operand 12 states and 2385 transitions. [2022-01-19 08:26:34,530 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 416 places, 1683 transitions, 43017 flow [2022-01-19 08:27:09,954 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 412 places, 1683 transitions, 42447 flow, removed 22 selfloop flow, removed 4 redundant places. [2022-01-19 08:27:09,984 INFO L242 Difference]: Finished difference. Result has 419 places, 1490 transitions, 40854 flow [2022-01-19 08:27:09,984 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=26509, PETRI_DIFFERENCE_MINUEND_PLACES=401, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1096, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=636, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=378, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=40854, PETRI_PLACES=419, PETRI_TRANSITIONS=1490} [2022-01-19 08:27:09,985 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 212 predicate places. [2022-01-19 08:27:09,985 INFO L470 AbstractCegarLoop]: Abstraction has has 419 places, 1490 transitions, 40854 flow [2022-01-19 08:27:09,985 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 190.0) internal successors, (1520), 8 states have internal predecessors, (1520), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:27:09,985 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:27:09,985 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:27:09,985 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2022-01-19 08:27:09,985 INFO L402 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:27:09,986 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:27:09,986 INFO L85 PathProgramCache]: Analyzing trace with hash 372830655, now seen corresponding path program 17 times [2022-01-19 08:27:09,986 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:27:09,986 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1710449238] [2022-01-19 08:27:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:27:09,986 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:27:10,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:27:10,209 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:27:10,210 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:27:10,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1710449238] [2022-01-19 08:27:10,210 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1710449238] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:27:10,210 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:27:10,210 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-01-19 08:27:10,210 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1243543783] [2022-01-19 08:27:10,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:27:10,210 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-19 08:27:10,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:27:10,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-19 08:27:10,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-01-19 08:27:10,213 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 183 out of 229 [2022-01-19 08:27:10,213 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 419 places, 1490 transitions, 40854 flow. Second operand has 9 states, 9 states have (on average 186.11111111111111) internal successors, (1675), 9 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:27:10,213 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:27:10,214 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 183 of 229 [2022-01-19 08:27:10,214 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:27:43,168 INFO L129 PetriNetUnfolder]: 45655/101348 cut-off events. [2022-01-19 08:27:43,169 INFO L130 PetriNetUnfolder]: For 1505248/1509092 co-relation queries the response was YES. [2022-01-19 08:27:45,441 INFO L84 FinitePrefix]: Finished finitePrefix Result has 590653 conditions, 101348 events. 45655/101348 cut-off events. For 1505248/1509092 co-relation queries the response was YES. Maximal size of possible extension queue 4761. Compared 1270441 event pairs, 15647 based on Foata normal form. 349/98700 useless extension candidates. Maximal degree in co-relation 590547. Up to 34035 conditions per place. [2022-01-19 08:27:45,809 INFO L132 encePairwiseOnDemand]: 217/229 looper letters, 611 selfloop transitions, 1090 changer transitions 18/1911 dead transitions. [2022-01-19 08:27:45,809 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 430 places, 1911 transitions, 52928 flow [2022-01-19 08:27:45,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-19 08:27:45,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-01-19 08:27:45,810 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2341 transitions. [2022-01-19 08:27:45,811 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8518922852983989 [2022-01-19 08:27:45,811 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2341 transitions. [2022-01-19 08:27:45,811 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2341 transitions. [2022-01-19 08:27:45,811 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:27:45,811 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2341 transitions. [2022-01-19 08:27:45,813 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 195.08333333333334) internal successors, (2341), 12 states have internal predecessors, (2341), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:27:45,815 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 229.0) internal successors, (2977), 13 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:27:45,815 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 229.0) internal successors, (2977), 13 states have internal predecessors, (2977), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:27:45,815 INFO L186 Difference]: Start difference. First operand has 419 places, 1490 transitions, 40854 flow. Second operand 12 states and 2341 transitions. [2022-01-19 08:27:45,815 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 430 places, 1911 transitions, 52928 flow [2022-01-19 08:28:30,080 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 428 places, 1911 transitions, 52635 flow, removed 15 selfloop flow, removed 2 redundant places. [2022-01-19 08:28:30,117 INFO L242 Difference]: Finished difference. Result has 434 places, 1676 transitions, 49506 flow [2022-01-19 08:28:30,118 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=40629, PETRI_DIFFERENCE_MINUEND_PLACES=417, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1490, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=917, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=525, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=49506, PETRI_PLACES=434, PETRI_TRANSITIONS=1676} [2022-01-19 08:28:30,118 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 227 predicate places. [2022-01-19 08:28:30,118 INFO L470 AbstractCegarLoop]: Abstraction has has 434 places, 1676 transitions, 49506 flow [2022-01-19 08:28:30,119 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 186.11111111111111) internal successors, (1675), 9 states have internal predecessors, (1675), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:28:30,119 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:28:30,119 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:28:30,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2022-01-19 08:28:30,119 INFO L402 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:28:30,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:28:30,120 INFO L85 PathProgramCache]: Analyzing trace with hash 1622488931, now seen corresponding path program 18 times [2022-01-19 08:28:30,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:28:30,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396631728] [2022-01-19 08:28:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:28:30,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:28:30,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:28:30,250 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-19 08:28:30,251 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:28:30,251 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396631728] [2022-01-19 08:28:30,251 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [396631728] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 08:28:30,251 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 08:28:30,251 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 08:28:30,251 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [190753459] [2022-01-19 08:28:30,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 08:28:30,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 08:28:30,251 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:28:30,252 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 08:28:30,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-01-19 08:28:30,253 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 187 out of 229 [2022-01-19 08:28:30,253 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 434 places, 1676 transitions, 49506 flow. Second operand has 7 states, 7 states have (on average 190.42857142857142) internal successors, (1333), 7 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:28:30,253 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:28:30,253 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 187 of 229 [2022-01-19 08:28:30,253 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:29:13,697 INFO L129 PetriNetUnfolder]: 57090/123312 cut-off events. [2022-01-19 08:29:13,697 INFO L130 PetriNetUnfolder]: For 1990985/1996271 co-relation queries the response was YES. [2022-01-19 08:29:16,658 INFO L84 FinitePrefix]: Finished finitePrefix Result has 753405 conditions, 123312 events. 57090/123312 cut-off events. For 1990985/1996271 co-relation queries the response was YES. Maximal size of possible extension queue 5570. Compared 1542444 event pairs, 15597 based on Foata normal form. 967/121218 useless extension candidates. Maximal degree in co-relation 753292. Up to 46244 conditions per place. [2022-01-19 08:29:17,328 INFO L132 encePairwiseOnDemand]: 220/229 looper letters, 677 selfloop transitions, 1126 changer transitions 10/1998 dead transitions. [2022-01-19 08:29:17,328 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 441 places, 1998 transitions, 59623 flow [2022-01-19 08:29:17,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 08:29:17,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 08:29:17,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1794 transitions. [2022-01-19 08:29:17,330 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8704512372634643 [2022-01-19 08:29:17,330 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1794 transitions. [2022-01-19 08:29:17,330 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1794 transitions. [2022-01-19 08:29:17,330 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:29:17,331 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1794 transitions. [2022-01-19 08:29:17,333 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 199.33333333333334) internal successors, (1794), 9 states have internal predecessors, (1794), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:29:17,334 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 229.0) internal successors, (2290), 10 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:29:17,334 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 229.0) internal successors, (2290), 10 states have internal predecessors, (2290), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:29:17,335 INFO L186 Difference]: Start difference. First operand has 434 places, 1676 transitions, 49506 flow. Second operand 9 states and 1794 transitions. [2022-01-19 08:29:17,335 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 441 places, 1998 transitions, 59623 flow [2022-01-19 08:30:34,973 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 435 places, 1998 transitions, 58522 flow, removed 23 selfloop flow, removed 6 redundant places. [2022-01-19 08:30:35,015 INFO L242 Difference]: Finished difference. Result has 438 places, 1809 transitions, 55446 flow [2022-01-19 08:30:35,016 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=229, PETRI_DIFFERENCE_MINUEND_FLOW=48430, PETRI_DIFFERENCE_MINUEND_PLACES=427, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1672, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=984, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=674, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=55446, PETRI_PLACES=438, PETRI_TRANSITIONS=1809} [2022-01-19 08:30:35,016 INFO L334 CegarLoopForPetriNet]: 207 programPoint places, 231 predicate places. [2022-01-19 08:30:35,016 INFO L470 AbstractCegarLoop]: Abstraction has has 438 places, 1809 transitions, 55446 flow [2022-01-19 08:30:35,017 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 190.42857142857142) internal successors, (1333), 7 states have internal predecessors, (1333), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:30:35,017 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 08:30:35,017 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 08:30:35,017 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2022-01-19 08:30:35,017 INFO L402 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-01-19 08:30:35,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 08:30:35,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1901197637, now seen corresponding path program 19 times [2022-01-19 08:30:35,017 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 08:30:35,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326313261] [2022-01-19 08:30:35,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 08:30:35,018 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 08:30:35,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:30:35,180 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:30:35,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 08:30:35,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326313261] [2022-01-19 08:30:35,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326313261] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 08:30:35,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [895468596] [2022-01-19 08:30:35,181 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-19 08:30:35,181 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 08:30:35,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 08:30:35,182 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 08:30:35,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 08:30:35,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 08:30:35,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 465 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-19 08:30:35,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 08:30:36,291 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:30:36,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 08:30:36,840 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 08:30:36,840 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [895468596] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 08:30:36,840 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 08:30:36,840 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 10, 10] total 24 [2022-01-19 08:30:36,841 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [23434796] [2022-01-19 08:30:36,841 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 08:30:36,841 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2022-01-19 08:30:36,841 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 08:30:36,842 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2022-01-19 08:30:36,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=451, Unknown=0, NotChecked=0, Total=552 [2022-01-19 08:30:36,844 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 181 out of 229 [2022-01-19 08:30:36,846 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 438 places, 1809 transitions, 55446 flow. Second operand has 24 states, 24 states have (on average 184.04166666666666) internal successors, (4417), 24 states have internal predecessors, (4417), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:30:36,847 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 08:30:36,847 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 181 of 229 [2022-01-19 08:30:36,847 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 08:32:30,057 INFO L129 PetriNetUnfolder]: 151731/275331 cut-off events. [2022-01-19 08:32:30,058 INFO L130 PetriNetUnfolder]: For 3516803/3523207 co-relation queries the response was YES. [2022-01-19 08:32:36,868 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1591126 conditions, 275331 events. 151731/275331 cut-off events. For 3516803/3523207 co-relation queries the response was YES. Maximal size of possible extension queue 11207. Compared 3210721 event pairs, 12059 based on Foata normal form. 2809/274130 useless extension candidates. Maximal degree in co-relation 1591011. Up to 33924 conditions per place. [2022-01-19 08:32:38,200 INFO L132 encePairwiseOnDemand]: 213/229 looper letters, 1842 selfloop transitions, 2347 changer transitions 79/4433 dead transitions. [2022-01-19 08:32:38,200 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 503 places, 4433 transitions, 106716 flow [2022-01-19 08:32:38,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-01-19 08:32:38,200 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2022-01-19 08:32:38,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 13022 transitions. [2022-01-19 08:32:38,209 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8362445414847162 [2022-01-19 08:32:38,210 INFO L72 ComplementDD]: Start complementDD. Operand 68 states and 13022 transitions. [2022-01-19 08:32:38,210 INFO L73 IsDeterministic]: Start isDeterministic. Operand 68 states and 13022 transitions. [2022-01-19 08:32:38,212 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 08:32:38,212 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 68 states and 13022 transitions. [2022-01-19 08:32:38,223 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 69 states, 68 states have (on average 191.5) internal successors, (13022), 68 states have internal predecessors, (13022), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:32:38,235 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 69 states, 69 states have (on average 229.0) internal successors, (15801), 69 states have internal predecessors, (15801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:32:38,236 INFO L81 ComplementDD]: Finished complementDD. Result has 69 states, 69 states have (on average 229.0) internal successors, (15801), 69 states have internal predecessors, (15801), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 08:32:38,236 INFO L186 Difference]: Start difference. First operand has 438 places, 1809 transitions, 55446 flow. Second operand 68 states and 13022 transitions. [2022-01-19 08:32:38,236 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 503 places, 4433 transitions, 106716 flow Received shutdown request... [2022-01-19 08:33:21,646 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 08:33:21,647 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 08:33:22,683 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 [2022-01-19 08:33:22,687 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-19 08:33:23,140 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 5 remaining) [2022-01-19 08:33:23,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2022-01-19 08:33:23,141 WARN L594 AbstractCegarLoop]: Verification canceled: while executing RemoveRedundantFlow. [2022-01-19 08:33:23,143 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-01-19 08:33:23,143 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-01-19 08:33:23,143 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-01-19 08:33:23,143 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-01-19 08:33:23,148 INFO L732 BasicCegarLoop]: Path program histogram: [19, 1, 1, 1, 1, 1, 1] [2022-01-19 08:33:23,150 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 08:33:23,150 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 08:33:23,152 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 08:33:23 BasicIcfg [2022-01-19 08:33:23,152 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 08:33:23,153 INFO L158 Benchmark]: Toolchain (without parser) took 736030.36ms. Allocated memory was 369.1MB in the beginning and 16.0GB in the end (delta: 15.6GB). Free memory was 315.6MB in the beginning and 9.0GB in the end (delta: -8.7GB). Peak memory consumption was 9.8GB. Max. memory is 16.0GB. [2022-01-19 08:33:23,153 INFO L158 Benchmark]: CDTParser took 0.13ms. Allocated memory is still 369.1MB. Free memory is still 332.4MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 08:33:23,154 INFO L158 Benchmark]: CACSL2BoogieTranslator took 262.71ms. Allocated memory was 369.1MB in the beginning and 463.5MB in the end (delta: 94.4MB). Free memory was 315.4MB in the beginning and 435.2MB in the end (delta: -119.8MB). Peak memory consumption was 8.5MB. Max. memory is 16.0GB. [2022-01-19 08:33:23,154 INFO L158 Benchmark]: Boogie Procedure Inliner took 39.13ms. Allocated memory is still 463.5MB. Free memory was 435.2MB in the beginning and 433.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 08:33:23,154 INFO L158 Benchmark]: Boogie Preprocessor took 40.52ms. Allocated memory is still 463.5MB. Free memory was 433.1MB in the beginning and 431.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 08:33:23,154 INFO L158 Benchmark]: RCFGBuilder took 638.24ms. Allocated memory is still 463.5MB. Free memory was 431.0MB in the beginning and 392.2MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. [2022-01-19 08:33:23,156 INFO L158 Benchmark]: TraceAbstraction took 735045.12ms. Allocated memory was 463.5MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 391.2MB in the beginning and 9.0GB in the end (delta: -8.7GB). Peak memory consumption was 9.8GB. Max. memory is 16.0GB. [2022-01-19 08:33:23,161 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13ms. Allocated memory is still 369.1MB. Free memory is still 332.4MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 262.71ms. Allocated memory was 369.1MB in the beginning and 463.5MB in the end (delta: 94.4MB). Free memory was 315.4MB in the beginning and 435.2MB in the end (delta: -119.8MB). Peak memory consumption was 8.5MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 39.13ms. Allocated memory is still 463.5MB. Free memory was 435.2MB in the beginning and 433.1MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 40.52ms. Allocated memory is still 463.5MB. Free memory was 433.1MB in the beginning and 431.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 638.24ms. Allocated memory is still 463.5MB. Free memory was 431.0MB in the beginning and 392.2MB in the end (delta: 38.8MB). Peak memory consumption was 39.8MB. Max. memory is 16.0GB. * TraceAbstraction took 735045.12ms. Allocated memory was 463.5MB in the beginning and 16.0GB in the end (delta: 15.5GB). Free memory was 391.2MB in the beginning and 9.0GB in the end (delta: -8.7GB). Peak memory consumption was 9.8GB. 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 - TimeoutResultAtElement [Line: 148]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 140]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 141]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 138]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - TimeoutResultAtElement [Line: 139]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing RemoveRedundantFlow. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 244 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: 734.9s, OverallIterations: 25, TraceHistogramMax: 1, PathProgramHistogramMax: 19, EmptinessCheckTime: 0.0s, AutomataDifference: 727.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3302 SdHoareTripleChecker+Valid, 5.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3302 mSDsluCounter, 1497 SdHoareTripleChecker+Invalid, 4.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 3301 mSDsCounter, 310 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7658 IncrementalHoareTripleChecker+Invalid, 7968 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 310 mSolverCounterUnsat, 404 mSDtfsCounter, 7658 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 728 GetRequests, 413 SyntacticMatches, 0 SemanticMatches, 315 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2543 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=55446occurred in iteration=24, InterpolantAutomatonStates: 229, 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: 0.1s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 5.3s InterpolantComputationTime, 4646 NumberOfCodeBlocks, 4646 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 4800 ConstructedInterpolants, 0 QuantifiedInterpolants, 34573 SizeOfPredicates, 7 NumberOfNonLiveVariables, 465 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 27 InterpolantComputations, 24 PerfectInterpolantSequences, 66/69 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown