/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:51:25,300 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:51:25,302 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:51:25,338 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 11:51:25,338 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 11:51:25,343 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 11:51:25,346 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 11:51:25,350 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 11:51:25,352 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 11:51:25,356 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 11:51:25,357 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 11:51:25,358 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 11:51:25,358 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:51:25,360 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:51:25,361 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:51:25,363 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:51:25,364 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:51:25,365 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:51:25,366 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:51:25,367 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:51:25,368 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:51:25,369 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:51:25,370 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:51:25,371 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:51:25,373 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:51:25,373 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:51:25,374 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:51:25,374 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:51:25,375 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:51:25,375 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 11:51:25,375 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 11:51:25,376 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 11:51:25,377 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 11:51:25,377 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 11:51:25,378 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 11:51:25,378 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 11:51:25,379 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 11:51:25,379 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 11:51:25,379 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:51:25,380 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:51:25,380 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:51:25,381 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf [2022-09-16 11:51:25,398 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:51:25,398 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:51:25,401 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:51:25,401 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:51:25,402 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:51:25,402 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:51:25,402 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:51:25,402 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:51:25,402 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:51:25,403 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:51:25,403 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:51:25,403 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:51:25,403 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:51:25,403 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:51:25,403 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:51:25,404 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:51:25,404 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:51:25,404 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:51:25,404 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:51:25,404 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:51:25,404 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:51:25,405 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:51:25,405 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:51:25,405 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:51:25,405 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:51:25,405 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:51:25,405 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:51:25,406 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:51:25,406 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:51:25,406 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:51:25,406 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:51:25,406 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:51:25,636 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:51:25,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:51:25,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:51:25,666 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:51:25,668 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:51:25,669 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-09-16 11:51:25,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61cd74929/d2e8e187daa34506a878501ea74b0d77/FLAG4f4a449ce [2022-09-16 11:51:26,180 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:51:26,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c [2022-09-16 11:51:26,187 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61cd74929/d2e8e187daa34506a878501ea74b0d77/FLAG4f4a449ce [2022-09-16 11:51:26,199 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/61cd74929/d2e8e187daa34506a878501ea74b0d77 [2022-09-16 11:51:26,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:51:26,202 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:51:26,210 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:51:26,210 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:51:26,213 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:51:26,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,214 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51418aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26, skipping insertion in model container [2022-09-16 11:51:26,214 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,221 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:51:26,238 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:51:26,389 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3089,3102] [2022-09-16 11:51:26,390 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:51:26,397 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:51:26,415 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-3.wvr.c[3089,3102] [2022-09-16 11:51:26,416 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:51:26,427 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:51:26,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26 WrapperNode [2022-09-16 11:51:26,428 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:51:26,430 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:51:26,430 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:51:26,431 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:51:26,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,446 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,468 INFO L138 Inliner]: procedures = 22, calls = 55, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 170 [2022-09-16 11:51:26,469 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:51:26,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:51:26,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:51:26,470 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:51:26,476 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,487 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,488 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,492 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,494 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,496 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:51:26,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:51:26,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:51:26,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:51:26,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (1/1) ... [2022-09-16 11:51:26,518 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:51:26,533 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:51:26,544 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 11:51:26,546 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 11:51:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:51:26,590 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 11:51:26,590 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 11:51:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 11:51:26,591 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 11:51:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 11:51:26,591 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 11:51:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:51:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:51:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:51:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 11:51:26,591 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 11:51:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:51:26,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:51:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:51:26,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:51:26,594 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 11:51:26,730 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:51:26,731 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:51:27,018 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:51:27,113 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:51:27,114 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:51:27,116 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:51:27 BoogieIcfgContainer [2022-09-16 11:51:27,116 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:51:27,118 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:51:27,118 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:51:27,121 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:51:27,121 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:51:26" (1/3) ... [2022-09-16 11:51:27,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42880845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:51:27, skipping insertion in model container [2022-09-16 11:51:27,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:51:26" (2/3) ... [2022-09-16 11:51:27,122 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@42880845 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:51:27, skipping insertion in model container [2022-09-16 11:51:27,122 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:51:27" (3/3) ... [2022-09-16 11:51:27,124 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-3.wvr.c [2022-09-16 11:51:27,141 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:51:27,141 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-09-16 11:51:27,141 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:51:27,223 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 11:51:27,259 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 138 places, 130 transitions, 284 flow [2022-09-16 11:51:27,342 INFO L130 PetriNetUnfolder]: 2/127 cut-off events. [2022-09-16 11:51:27,343 INFO L131 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-09-16 11:51:27,346 INFO L83 FinitePrefix]: Finished finitePrefix Result has 140 conditions, 127 events. 2/127 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 85 event pairs, 0 based on Foata normal form. 0/113 useless extension candidates. Maximal degree in co-relation 90. Up to 2 conditions per place. [2022-09-16 11:51:27,346 INFO L82 GeneralOperation]: Start removeDead. Operand has 138 places, 130 transitions, 284 flow [2022-09-16 11:51:27,357 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 115 places, 106 transitions, 227 flow [2022-09-16 11:51:27,375 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:51:27,383 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@8116394, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:51:27,383 INFO L358 AbstractCegarLoop]: Starting to check reachability of 27 error locations. [2022-09-16 11:51:27,406 INFO L130 PetriNetUnfolder]: 1/54 cut-off events. [2022-09-16 11:51:27,406 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-09-16 11:51:27,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:51:27,407 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:51:27,408 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 11:51:27,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:51:27,413 INFO L85 PathProgramCache]: Analyzing trace with hash 752606577, now seen corresponding path program 1 times [2022-09-16 11:51:27,422 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:51:27,422 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1892907456] [2022-09-16 11:51:27,422 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:51:27,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:51:27,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:51:27,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:51:27,783 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:51:27,783 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1892907456] [2022-09-16 11:51:27,783 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1892907456] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:51:27,784 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:51:27,784 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:51:27,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2002843984] [2022-09-16 11:51:27,785 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:51:27,793 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:51:27,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:51:27,825 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:51:27,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:51:27,831 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 130 [2022-09-16 11:51:27,838 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 106 transitions, 227 flow. Second operand has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:27,839 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:51:27,839 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 130 [2022-09-16 11:51:27,840 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:51:28,402 INFO L130 PetriNetUnfolder]: 1132/2349 cut-off events. [2022-09-16 11:51:28,403 INFO L131 PetriNetUnfolder]: For 341/341 co-relation queries the response was YES. [2022-09-16 11:51:28,412 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4542 conditions, 2349 events. 1132/2349 cut-off events. For 341/341 co-relation queries the response was YES. Maximal size of possible extension queue 264. Compared 18061 event pairs, 760 based on Foata normal form. 1/1292 useless extension candidates. Maximal degree in co-relation 3903. Up to 1471 conditions per place. [2022-09-16 11:51:28,434 INFO L137 encePairwiseOnDemand]: 115/130 looper letters, 43 selfloop transitions, 11 changer transitions 1/127 dead transitions. [2022-09-16 11:51:28,434 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 119 places, 127 transitions, 391 flow [2022-09-16 11:51:28,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:51:28,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:51:28,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 499 transitions. [2022-09-16 11:51:28,447 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7676923076923077 [2022-09-16 11:51:28,448 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 499 transitions. [2022-09-16 11:51:28,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 499 transitions. [2022-09-16 11:51:28,450 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:51:28,452 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 499 transitions. [2022-09-16 11:51:28,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 99.8) internal successors, (499), 5 states have internal predecessors, (499), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:28,461 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:28,462 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:28,463 INFO L175 Difference]: Start difference. First operand has 115 places, 106 transitions, 227 flow. Second operand 5 states and 499 transitions. [2022-09-16 11:51:28,464 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 119 places, 127 transitions, 391 flow [2022-09-16 11:51:28,467 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 127 transitions, 375 flow, removed 0 selfloop flow, removed 5 redundant places. [2022-09-16 11:51:28,471 INFO L231 Difference]: Finished difference. Result has 116 places, 110 transitions, 284 flow [2022-09-16 11:51:28,472 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=216, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=105, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=94, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=284, PETRI_PLACES=116, PETRI_TRANSITIONS=110} [2022-09-16 11:51:28,475 INFO L287 CegarLoopForPetriNet]: 115 programPoint places, 1 predicate places. [2022-09-16 11:51:28,476 INFO L495 AbstractCegarLoop]: Abstraction has has 116 places, 110 transitions, 284 flow [2022-09-16 11:51:28,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 89.6) internal successors, (448), 5 states have internal predecessors, (448), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:28,476 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:51:28,476 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:51:28,477 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:51:28,477 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 11:51:28,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:51:28,477 INFO L85 PathProgramCache]: Analyzing trace with hash 752606578, now seen corresponding path program 1 times [2022-09-16 11:51:28,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:51:28,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097447805] [2022-09-16 11:51:28,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:51:28,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:51:28,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:51:28,556 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:51:28,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:51:28,557 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097447805] [2022-09-16 11:51:28,557 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2097447805] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:51:28,557 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:51:28,558 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:51:28,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952816950] [2022-09-16 11:51:28,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:51:28,559 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:51:28,559 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:51:28,560 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:51:28,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:51:28,561 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 130 [2022-09-16 11:51:28,561 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 116 places, 110 transitions, 284 flow. Second operand has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:28,562 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:51:28,562 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 130 [2022-09-16 11:51:28,562 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:51:28,782 INFO L130 PetriNetUnfolder]: 699/1439 cut-off events. [2022-09-16 11:51:28,783 INFO L131 PetriNetUnfolder]: For 573/573 co-relation queries the response was YES. [2022-09-16 11:51:28,786 INFO L83 FinitePrefix]: Finished finitePrefix Result has 3031 conditions, 1439 events. 699/1439 cut-off events. For 573/573 co-relation queries the response was YES. Maximal size of possible extension queue 152. Compared 9651 event pairs, 639 based on Foata normal form. 166/1056 useless extension candidates. Maximal degree in co-relation 2526. Up to 1147 conditions per place. [2022-09-16 11:51:28,795 INFO L137 encePairwiseOnDemand]: 124/130 looper letters, 29 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2022-09-16 11:51:28,796 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 104 transitions, 318 flow [2022-09-16 11:51:28,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:51:28,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:51:28,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 408 transitions. [2022-09-16 11:51:28,798 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7846153846153846 [2022-09-16 11:51:28,798 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 408 transitions. [2022-09-16 11:51:28,798 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 408 transitions. [2022-09-16 11:51:28,799 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:51:28,799 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 408 transitions. [2022-09-16 11:51:28,800 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 102.0) internal successors, (408), 4 states have internal predecessors, (408), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:28,801 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:28,802 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:28,802 INFO L175 Difference]: Start difference. First operand has 116 places, 110 transitions, 284 flow. Second operand 4 states and 408 transitions. [2022-09-16 11:51:28,802 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 104 transitions, 318 flow [2022-09-16 11:51:28,803 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 104 transitions, 302 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:51:28,805 INFO L231 Difference]: Finished difference. Result has 111 places, 104 transitions, 244 flow [2022-09-16 11:51:28,805 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=244, PETRI_PLACES=111, PETRI_TRANSITIONS=104} [2022-09-16 11:51:28,806 INFO L287 CegarLoopForPetriNet]: 115 programPoint places, -4 predicate places. [2022-09-16 11:51:28,806 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 104 transitions, 244 flow [2022-09-16 11:51:28,807 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.0) internal successors, (384), 4 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:28,807 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:51:28,807 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:51:28,807 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-16 11:51:28,807 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 11:51:28,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:51:28,808 INFO L85 PathProgramCache]: Analyzing trace with hash 2024874357, now seen corresponding path program 1 times [2022-09-16 11:51:28,808 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:51:28,808 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1179557627] [2022-09-16 11:51:28,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:51:28,808 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:51:28,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:51:28,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:51:28,877 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:51:28,877 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1179557627] [2022-09-16 11:51:28,877 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1179557627] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:51:28,877 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:51:28,877 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:51:28,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1607259810] [2022-09-16 11:51:28,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:51:28,878 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:51:28,878 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:51:28,878 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:51:28,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:51:28,879 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 130 [2022-09-16 11:51:28,880 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 104 transitions, 244 flow. Second operand has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:28,880 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:51:28,880 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 130 [2022-09-16 11:51:28,880 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:51:29,103 INFO L130 PetriNetUnfolder]: 498/1295 cut-off events. [2022-09-16 11:51:29,103 INFO L131 PetriNetUnfolder]: For 178/178 co-relation queries the response was YES. [2022-09-16 11:51:29,107 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2554 conditions, 1295 events. 498/1295 cut-off events. For 178/178 co-relation queries the response was YES. Maximal size of possible extension queue 128. Compared 9007 event pairs, 235 based on Foata normal form. 0/928 useless extension candidates. Maximal degree in co-relation 2506. Up to 449 conditions per place. [2022-09-16 11:51:29,116 INFO L137 encePairwiseOnDemand]: 116/130 looper letters, 40 selfloop transitions, 11 changer transitions 0/123 dead transitions. [2022-09-16 11:51:29,116 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 123 transitions, 401 flow [2022-09-16 11:51:29,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 11:51:29,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2022-09-16 11:51:29,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 491 transitions. [2022-09-16 11:51:29,118 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7553846153846154 [2022-09-16 11:51:29,118 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 491 transitions. [2022-09-16 11:51:29,118 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 491 transitions. [2022-09-16 11:51:29,119 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:51:29,119 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 491 transitions. [2022-09-16 11:51:29,120 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 98.2) internal successors, (491), 5 states have internal predecessors, (491), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,122 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 130.0) internal successors, (780), 6 states have internal predecessors, (780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,122 INFO L175 Difference]: Start difference. First operand has 111 places, 104 transitions, 244 flow. Second operand 5 states and 491 transitions. [2022-09-16 11:51:29,122 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 123 transitions, 401 flow [2022-09-16 11:51:29,125 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 123 transitions, 395 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:51:29,128 INFO L231 Difference]: Finished difference. Result has 114 places, 110 transitions, 308 flow [2022-09-16 11:51:29,129 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=308, PETRI_PLACES=114, PETRI_TRANSITIONS=110} [2022-09-16 11:51:29,131 INFO L287 CegarLoopForPetriNet]: 115 programPoint places, -1 predicate places. [2022-09-16 11:51:29,131 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 110 transitions, 308 flow [2022-09-16 11:51:29,132 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 90.0) internal successors, (450), 5 states have internal predecessors, (450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,132 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:51:29,132 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:51:29,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-16 11:51:29,132 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 11:51:29,133 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:51:29,133 INFO L85 PathProgramCache]: Analyzing trace with hash 2024874358, now seen corresponding path program 1 times [2022-09-16 11:51:29,133 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:51:29,134 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29940178] [2022-09-16 11:51:29,134 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:51:29,134 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:51:29,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:51:29,224 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:51:29,224 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:51:29,224 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29940178] [2022-09-16 11:51:29,225 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29940178] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:51:29,225 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:51:29,225 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 11:51:29,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1301644086] [2022-09-16 11:51:29,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:51:29,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 11:51:29,229 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:51:29,230 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 11:51:29,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 11:51:29,231 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 94 out of 130 [2022-09-16 11:51:29,232 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 110 transitions, 308 flow. Second operand has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,232 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:51:29,232 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 94 of 130 [2022-09-16 11:51:29,232 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:51:29,381 INFO L130 PetriNetUnfolder]: 293/726 cut-off events. [2022-09-16 11:51:29,381 INFO L131 PetriNetUnfolder]: For 462/462 co-relation queries the response was YES. [2022-09-16 11:51:29,384 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1704 conditions, 726 events. 293/726 cut-off events. For 462/462 co-relation queries the response was YES. Maximal size of possible extension queue 61. Compared 4064 event pairs, 244 based on Foata normal form. 99/658 useless extension candidates. Maximal degree in co-relation 1372. Up to 515 conditions per place. [2022-09-16 11:51:29,388 INFO L137 encePairwiseOnDemand]: 124/130 looper letters, 29 selfloop transitions, 3 changer transitions 0/104 dead transitions. [2022-09-16 11:51:29,388 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 114 places, 104 transitions, 342 flow [2022-09-16 11:51:29,388 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-09-16 11:51:29,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2022-09-16 11:51:29,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 405 transitions. [2022-09-16 11:51:29,390 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7788461538461539 [2022-09-16 11:51:29,390 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 405 transitions. [2022-09-16 11:51:29,390 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 405 transitions. [2022-09-16 11:51:29,391 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:51:29,391 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 405 transitions. [2022-09-16 11:51:29,392 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 101.25) internal successors, (405), 4 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,393 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,393 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 130.0) internal successors, (650), 5 states have internal predecessors, (650), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,394 INFO L175 Difference]: Start difference. First operand has 114 places, 110 transitions, 308 flow. Second operand 4 states and 405 transitions. [2022-09-16 11:51:29,394 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 114 places, 104 transitions, 342 flow [2022-09-16 11:51:29,396 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 110 places, 104 transitions, 326 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-16 11:51:29,400 INFO L231 Difference]: Finished difference. Result has 110 places, 104 transitions, 268 flow [2022-09-16 11:51:29,401 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=268, PETRI_PLACES=110, PETRI_TRANSITIONS=104} [2022-09-16 11:51:29,402 INFO L287 CegarLoopForPetriNet]: 115 programPoint places, -5 predicate places. [2022-09-16 11:51:29,405 INFO L495 AbstractCegarLoop]: Abstraction has has 110 places, 104 transitions, 268 flow [2022-09-16 11:51:29,405 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 96.5) internal successors, (386), 4 states have internal predecessors, (386), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,406 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:51:29,410 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:51:29,411 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-16 11:51:29,411 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 11:51:29,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:51:29,412 INFO L85 PathProgramCache]: Analyzing trace with hash -576348855, now seen corresponding path program 1 times [2022-09-16 11:51:29,412 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:51:29,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [318367059] [2022-09-16 11:51:29,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:51:29,413 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:51:29,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:51:29,509 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:51:29,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:51:29,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [318367059] [2022-09-16 11:51:29,510 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [318367059] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:51:29,510 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:51:29,510 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:51:29,510 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [115561053] [2022-09-16 11:51:29,510 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:51:29,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:51:29,511 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:51:29,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:51:29,511 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:51:29,512 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 130 [2022-09-16 11:51:29,513 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 110 places, 104 transitions, 268 flow. Second operand has 6 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,513 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:51:29,513 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 130 [2022-09-16 11:51:29,513 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:51:29,636 INFO L130 PetriNetUnfolder]: 232/597 cut-off events. [2022-09-16 11:51:29,636 INFO L131 PetriNetUnfolder]: For 175/175 co-relation queries the response was YES. [2022-09-16 11:51:29,638 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1330 conditions, 597 events. 232/597 cut-off events. For 175/175 co-relation queries the response was YES. Maximal size of possible extension queue 53. Compared 3223 event pairs, 105 based on Foata normal form. 0/485 useless extension candidates. Maximal degree in co-relation 1284. Up to 385 conditions per place. [2022-09-16 11:51:29,641 INFO L137 encePairwiseOnDemand]: 119/130 looper letters, 34 selfloop transitions, 11 changer transitions 0/117 dead transitions. [2022-09-16 11:51:29,641 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 117 transitions, 402 flow [2022-09-16 11:51:29,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:51:29,642 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:51:29,643 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 573 transitions. [2022-09-16 11:51:29,643 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7346153846153847 [2022-09-16 11:51:29,643 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 573 transitions. [2022-09-16 11:51:29,643 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 573 transitions. [2022-09-16 11:51:29,644 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:51:29,644 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 573 transitions. [2022-09-16 11:51:29,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 95.5) internal successors, (573), 6 states have internal predecessors, (573), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,647 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,647 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,647 INFO L175 Difference]: Start difference. First operand has 110 places, 104 transitions, 268 flow. Second operand 6 states and 573 transitions. [2022-09-16 11:51:29,647 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 117 transitions, 402 flow [2022-09-16 11:51:29,649 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 112 places, 117 transitions, 396 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-09-16 11:51:29,650 INFO L231 Difference]: Finished difference. Result has 113 places, 107 transitions, 314 flow [2022-09-16 11:51:29,651 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=262, PETRI_DIFFERENCE_MINUEND_PLACES=107, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=93, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=314, PETRI_PLACES=113, PETRI_TRANSITIONS=107} [2022-09-16 11:51:29,651 INFO L287 CegarLoopForPetriNet]: 115 programPoint places, -2 predicate places. [2022-09-16 11:51:29,651 INFO L495 AbstractCegarLoop]: Abstraction has has 113 places, 107 transitions, 314 flow [2022-09-16 11:51:29,652 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 89.66666666666667) internal successors, (538), 6 states have internal predecessors, (538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,652 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:51:29,652 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:51:29,652 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-16 11:51:29,652 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 11:51:29,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:51:29,653 INFO L85 PathProgramCache]: Analyzing trace with hash 1719043947, now seen corresponding path program 1 times [2022-09-16 11:51:29,653 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:51:29,653 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2008213451] [2022-09-16 11:51:29,653 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:51:29,653 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:51:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:51:29,763 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:51:29,763 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:51:29,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2008213451] [2022-09-16 11:51:29,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2008213451] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:51:29,764 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:51:29,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-09-16 11:51:29,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561192052] [2022-09-16 11:51:29,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:51:29,764 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-09-16 11:51:29,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:51:29,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-09-16 11:51:29,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-09-16 11:51:29,766 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 130 [2022-09-16 11:51:29,766 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 113 places, 107 transitions, 314 flow. Second operand has 6 states, 6 states have (on average 90.33333333333333) internal successors, (542), 6 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,767 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:51:29,767 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 130 [2022-09-16 11:51:29,767 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:51:29,915 INFO L130 PetriNetUnfolder]: 185/588 cut-off events. [2022-09-16 11:51:29,916 INFO L131 PetriNetUnfolder]: For 256/256 co-relation queries the response was YES. [2022-09-16 11:51:29,918 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1295 conditions, 588 events. 185/588 cut-off events. For 256/256 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 3108 event pairs, 40 based on Foata normal form. 0/529 useless extension candidates. Maximal degree in co-relation 1022. Up to 142 conditions per place. [2022-09-16 11:51:29,921 INFO L137 encePairwiseOnDemand]: 119/130 looper letters, 49 selfloop transitions, 11 changer transitions 3/135 dead transitions. [2022-09-16 11:51:29,921 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 135 transitions, 571 flow [2022-09-16 11:51:29,922 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-09-16 11:51:29,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2022-09-16 11:51:29,923 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 585 transitions. [2022-09-16 11:51:29,923 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.75 [2022-09-16 11:51:29,923 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 585 transitions. [2022-09-16 11:51:29,923 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 585 transitions. [2022-09-16 11:51:29,924 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:51:29,924 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 585 transitions. [2022-09-16 11:51:29,925 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 97.5) internal successors, (585), 6 states have internal predecessors, (585), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,927 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,929 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 130.0) internal successors, (910), 7 states have internal predecessors, (910), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,929 INFO L175 Difference]: Start difference. First operand has 113 places, 107 transitions, 314 flow. Second operand 6 states and 585 transitions. [2022-09-16 11:51:29,929 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 135 transitions, 571 flow [2022-09-16 11:51:29,931 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 135 transitions, 540 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-09-16 11:51:29,934 INFO L231 Difference]: Finished difference. Result has 115 places, 107 transitions, 326 flow [2022-09-16 11:51:29,934 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=292, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=11, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=326, PETRI_PLACES=115, PETRI_TRANSITIONS=107} [2022-09-16 11:51:29,937 INFO L287 CegarLoopForPetriNet]: 115 programPoint places, 0 predicate places. [2022-09-16 11:51:29,937 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 107 transitions, 326 flow [2022-09-16 11:51:29,937 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 90.33333333333333) internal successors, (542), 6 states have internal predecessors, (542), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:29,937 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:51:29,937 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:51:29,938 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-16 11:51:29,938 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 11:51:29,938 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:51:29,938 INFO L85 PathProgramCache]: Analyzing trace with hash -720331000, now seen corresponding path program 1 times [2022-09-16 11:51:29,938 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:51:29,938 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359282217] [2022-09-16 11:51:29,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:51:29,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:51:29,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:51:30,049 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:51:30,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:51:30,049 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359282217] [2022-09-16 11:51:30,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359282217] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:51:30,050 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:51:30,050 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 11:51:30,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244240436] [2022-09-16 11:51:30,054 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:51:30,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:51:30,055 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:51:30,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:51:30,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:51:30,057 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 130 [2022-09-16 11:51:30,059 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 107 transitions, 326 flow. Second operand has 7 states, 7 states have (on average 89.71428571428571) internal successors, (628), 7 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:30,059 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:51:30,059 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 130 [2022-09-16 11:51:30,059 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:51:30,210 INFO L130 PetriNetUnfolder]: 133/419 cut-off events. [2022-09-16 11:51:30,210 INFO L131 PetriNetUnfolder]: For 410/410 co-relation queries the response was YES. [2022-09-16 11:51:30,211 INFO L83 FinitePrefix]: Finished finitePrefix Result has 984 conditions, 419 events. 133/419 cut-off events. For 410/410 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1923 event pairs, 10 based on Foata normal form. 0/406 useless extension candidates. Maximal degree in co-relation 554. Up to 117 conditions per place. [2022-09-16 11:51:30,213 INFO L137 encePairwiseOnDemand]: 119/130 looper letters, 39 selfloop transitions, 14 changer transitions 0/125 dead transitions. [2022-09-16 11:51:30,213 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 118 places, 125 transitions, 509 flow [2022-09-16 11:51:30,213 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:51:30,214 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:51:30,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 666 transitions. [2022-09-16 11:51:30,216 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7318681318681318 [2022-09-16 11:51:30,216 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 666 transitions. [2022-09-16 11:51:30,216 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 666 transitions. [2022-09-16 11:51:30,216 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:51:30,216 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 666 transitions. [2022-09-16 11:51:30,218 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 95.14285714285714) internal successors, (666), 7 states have internal predecessors, (666), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:30,219 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 130.0) internal successors, (1040), 8 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:30,220 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 130.0) internal successors, (1040), 8 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:30,220 INFO L175 Difference]: Start difference. First operand has 115 places, 107 transitions, 326 flow. Second operand 7 states and 666 transitions. [2022-09-16 11:51:30,220 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 118 places, 125 transitions, 509 flow [2022-09-16 11:51:30,223 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 114 places, 125 transitions, 472 flow, removed 6 selfloop flow, removed 4 redundant places. [2022-09-16 11:51:30,225 INFO L231 Difference]: Finished difference. Result has 114 places, 104 transitions, 314 flow [2022-09-16 11:51:30,225 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=286, PETRI_DIFFERENCE_MINUEND_PLACES=108, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=14, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=314, PETRI_PLACES=114, PETRI_TRANSITIONS=104} [2022-09-16 11:51:30,226 INFO L287 CegarLoopForPetriNet]: 115 programPoint places, -1 predicate places. [2022-09-16 11:51:30,226 INFO L495 AbstractCegarLoop]: Abstraction has has 114 places, 104 transitions, 314 flow [2022-09-16 11:51:30,226 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 89.71428571428571) internal successors, (628), 7 states have internal predecessors, (628), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:30,226 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:51:30,226 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:51:30,227 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-16 11:51:30,227 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 24 more)] === [2022-09-16 11:51:30,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:51:30,227 INFO L85 PathProgramCache]: Analyzing trace with hash 1329403856, now seen corresponding path program 1 times [2022-09-16 11:51:30,227 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:51:30,228 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232140076] [2022-09-16 11:51:30,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:51:30,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:51:30,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:51:30,341 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 11:51:30,342 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:51:30,342 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232140076] [2022-09-16 11:51:30,342 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232140076] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:51:30,342 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:51:30,342 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-09-16 11:51:30,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [326501959] [2022-09-16 11:51:30,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:51:30,343 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-16 11:51:30,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:51:30,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-16 11:51:30,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-16 11:51:30,344 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 130 [2022-09-16 11:51:30,345 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 114 places, 104 transitions, 314 flow. Second operand has 7 states, 7 states have (on average 90.57142857142857) internal successors, (634), 7 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:30,345 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:51:30,345 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 130 [2022-09-16 11:51:30,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:51:30,460 INFO L130 PetriNetUnfolder]: 130/411 cut-off events. [2022-09-16 11:51:30,460 INFO L131 PetriNetUnfolder]: For 371/371 co-relation queries the response was YES. [2022-09-16 11:51:30,462 INFO L83 FinitePrefix]: Finished finitePrefix Result has 969 conditions, 411 events. 130/411 cut-off events. For 371/371 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 1800 event pairs, 40 based on Foata normal form. 6/394 useless extension candidates. Maximal degree in co-relation 378. Up to 102 conditions per place. [2022-09-16 11:51:30,462 INFO L137 encePairwiseOnDemand]: 119/130 looper letters, 0 selfloop transitions, 0 changer transitions 120/120 dead transitions. [2022-09-16 11:51:30,463 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 120 transitions, 484 flow [2022-09-16 11:51:30,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-16 11:51:30,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-16 11:51:30,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 658 transitions. [2022-09-16 11:51:30,465 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7230769230769231 [2022-09-16 11:51:30,465 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 658 transitions. [2022-09-16 11:51:30,465 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 658 transitions. [2022-09-16 11:51:30,466 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:51:30,466 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 658 transitions. [2022-09-16 11:51:30,467 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 94.0) internal successors, (658), 7 states have internal predecessors, (658), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:30,469 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 130.0) internal successors, (1040), 8 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:30,469 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 130.0) internal successors, (1040), 8 states have internal predecessors, (1040), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:30,469 INFO L175 Difference]: Start difference. First operand has 114 places, 104 transitions, 314 flow. Second operand 7 states and 658 transitions. [2022-09-16 11:51:30,469 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 120 transitions, 484 flow [2022-09-16 11:51:30,471 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 108 places, 120 transitions, 390 flow, removed 18 selfloop flow, removed 9 redundant places. [2022-09-16 11:51:30,472 INFO L231 Difference]: Finished difference. Result has 108 places, 0 transitions, 0 flow [2022-09-16 11:51:30,472 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=130, PETRI_DIFFERENCE_MINUEND_FLOW=238, PETRI_DIFFERENCE_MINUEND_PLACES=102, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=101, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=0, PETRI_PLACES=108, PETRI_TRANSITIONS=0} [2022-09-16 11:51:30,472 INFO L287 CegarLoopForPetriNet]: 115 programPoint places, -7 predicate places. [2022-09-16 11:51:30,473 INFO L495 AbstractCegarLoop]: Abstraction has has 108 places, 0 transitions, 0 flow [2022-09-16 11:51:30,473 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 90.57142857142857) internal successors, (634), 7 states have internal predecessors, (634), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-16 11:51:30,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 27 remaining) [2022-09-16 11:51:30,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 27 remaining) [2022-09-16 11:51:30,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 27 remaining) [2022-09-16 11:51:30,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 27 remaining) [2022-09-16 11:51:30,476 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 27 remaining) [2022-09-16 11:51:30,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 27 remaining) [2022-09-16 11:51:30,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 27 remaining) [2022-09-16 11:51:30,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 27 remaining) [2022-09-16 11:51:30,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 27 remaining) [2022-09-16 11:51:30,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 27 remaining) [2022-09-16 11:51:30,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 27 remaining) [2022-09-16 11:51:30,477 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 27 remaining) [2022-09-16 11:51:30,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (14 of 27 remaining) [2022-09-16 11:51:30,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (13 of 27 remaining) [2022-09-16 11:51:30,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (12 of 27 remaining) [2022-09-16 11:51:30,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 27 remaining) [2022-09-16 11:51:30,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 27 remaining) [2022-09-16 11:51:30,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 27 remaining) [2022-09-16 11:51:30,478 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 27 remaining) [2022-09-16 11:51:30,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 27 remaining) [2022-09-16 11:51:30,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 27 remaining) [2022-09-16 11:51:30,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 27 remaining) [2022-09-16 11:51:30,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 27 remaining) [2022-09-16 11:51:30,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 27 remaining) [2022-09-16 11:51:30,479 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 27 remaining) [2022-09-16 11:51:30,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 27 remaining) [2022-09-16 11:51:30,480 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread3Err3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 27 remaining) [2022-09-16 11:51:30,480 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-16 11:51:30,480 INFO L444 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1] [2022-09-16 11:51:30,485 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-16 11:51:30,485 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-16 11:51:30,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 11:51:30 BasicIcfg [2022-09-16 11:51:30,489 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-16 11:51:30,490 INFO L158 Benchmark]: Toolchain (without parser) took 4287.40ms. Allocated memory was 174.1MB in the beginning and 336.6MB in the end (delta: 162.5MB). Free memory was 148.5MB in the beginning and 259.8MB in the end (delta: -111.3MB). Peak memory consumption was 51.0MB. Max. memory is 8.0GB. [2022-09-16 11:51:30,490 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 174.1MB. Free memory is still 132.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-16 11:51:30,490 INFO L158 Benchmark]: CACSL2BoogieTranslator took 219.57ms. Allocated memory was 174.1MB in the beginning and 261.1MB in the end (delta: 87.0MB). Free memory was 148.3MB in the beginning and 233.4MB in the end (delta: -85.0MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. [2022-09-16 11:51:30,491 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.57ms. Allocated memory is still 261.1MB. Free memory was 233.2MB in the beginning and 231.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-16 11:51:30,491 INFO L158 Benchmark]: Boogie Preprocessor took 28.90ms. Allocated memory is still 261.1MB. Free memory was 231.2MB in the beginning and 230.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-16 11:51:30,491 INFO L158 Benchmark]: RCFGBuilder took 616.79ms. Allocated memory is still 261.1MB. Free memory was 229.9MB in the beginning and 207.1MB in the end (delta: 22.8MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. [2022-09-16 11:51:30,491 INFO L158 Benchmark]: TraceAbstraction took 3371.43ms. Allocated memory was 261.1MB in the beginning and 336.6MB in the end (delta: 75.5MB). Free memory was 206.4MB in the beginning and 259.8MB in the end (delta: -53.4MB). Peak memory consumption was 22.7MB. Max. memory is 8.0GB. [2022-09-16 11:51:30,493 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 174.1MB. Free memory is still 132.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 219.57ms. Allocated memory was 174.1MB in the beginning and 261.1MB in the end (delta: 87.0MB). Free memory was 148.3MB in the beginning and 233.4MB in the end (delta: -85.0MB). Peak memory consumption was 7.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.57ms. Allocated memory is still 261.1MB. Free memory was 233.2MB in the beginning and 231.2MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 28.90ms. Allocated memory is still 261.1MB. Free memory was 231.2MB in the beginning and 230.1MB in the end (delta: 1.1MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 616.79ms. Allocated memory is still 261.1MB. Free memory was 229.9MB in the beginning and 207.1MB in the end (delta: 22.8MB). Peak memory consumption was 22.0MB. Max. memory is 8.0GB. * TraceAbstraction took 3371.43ms. Allocated memory was 261.1MB in the beginning and 336.6MB in the end (delta: 75.5MB). Free memory was 206.4MB in the beginning and 259.8MB in the end (delta: -53.4MB). Peak memory consumption was 22.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 57]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 66]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 76]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 85]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 95]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 166 locations, 27 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: 3.2s, OverallIterations: 8, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 265 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 265 mSDsluCounter, 41 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 247 mSDsCounter, 75 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 625 IncrementalHoareTripleChecker+Invalid, 700 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 75 mSolverCounterUnsat, 32 mSDtfsCounter, 625 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 44 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=326occurred in iteration=6, InterpolantAutomatonStates: 44, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 491 NumberOfCodeBlocks, 491 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 483 ConstructedInterpolants, 0 QuantifiedInterpolants, 961 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 12 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-16 11:51:30,528 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 Received shutdown request...