/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/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 11:36:25,969 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 11:36:25,971 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 11:36:26,018 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-09-16 11:36:26,036 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 11:36:26,038 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 11:36:26,039 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 11:36:26,042 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 11:36:26,044 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 11:36:26,045 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 11:36:26,047 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 11:36:26,052 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 11:36:26,053 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 11:36:26,054 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 11:36:26,056 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 11:36:26,057 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 11:36:26,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 11:36:26,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 11:36:26,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 11:36:26,064 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 11:36:26,064 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 11:36:26,065 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-09-16 11:36:26,070 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 11:36:26,071 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 11:36:26,071 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 11:36:26,072 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 11:36:26,101 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 11:36:26,101 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 11:36:26,102 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 11:36:26,102 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 11:36:26,103 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 11:36:26,103 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 11:36:26,103 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 11:36:26,103 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 11:36:26,103 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 11:36:26,103 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 11:36:26,104 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 11:36:26,104 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 11:36:26,104 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 11:36:26,104 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 11:36:26,104 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 11:36:26,104 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 11:36:26,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 11:36:26,104 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 11:36:26,105 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 11:36:26,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 11:36:26,105 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 11:36:26,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 11:36:26,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 11:36:26,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:36:26,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 11:36:26,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 11:36:26,105 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 11:36:26,105 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 11:36:26,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 11:36:26,106 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 11:36:26,106 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-16 11:36:26,106 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 11:36:26,368 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 11:36:26,407 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 11:36:26,410 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 11:36:26,411 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 11:36:26,411 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 11:36:26,412 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i [2022-09-16 11:36:26,479 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11af44d26/12a2539686ce4fd4bcebc3291ddc5c7c/FLAG3eb366588 [2022-09-16 11:36:27,239 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 11:36:27,240 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i [2022-09-16 11:36:27,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11af44d26/12a2539686ce4fd4bcebc3291ddc5c7c/FLAG3eb366588 [2022-09-16 11:36:27,483 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/11af44d26/12a2539686ce4fd4bcebc3291ddc5c7c [2022-09-16 11:36:27,486 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 11:36:27,488 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 11:36:27,491 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 11:36:27,491 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 11:36:27,494 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 11:36:27,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:36:27" (1/1) ... [2022-09-16 11:36:27,496 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7eea8a0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:27, skipping insertion in model container [2022-09-16 11:36:27,496 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 11:36:27" (1/1) ... [2022-09-16 11:36:27,502 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 11:36:27,604 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 11:36:29,199 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i[178781,178794] [2022-09-16 11:36:29,358 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:36:29,386 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 11:36:29,637 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-linux-3.14-races/linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i[178781,178794] [2022-09-16 11:36:29,645 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 11:36:29,759 INFO L208 MainTranslator]: Completed translation [2022-09-16 11:36:29,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29 WrapperNode [2022-09-16 11:36:29,759 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 11:36:29,760 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 11:36:29,760 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 11:36:29,760 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 11:36:29,766 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (1/1) ... [2022-09-16 11:36:29,820 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (1/1) ... [2022-09-16 11:36:29,957 INFO L138 Inliner]: procedures = 301, calls = 1106, calls flagged for inlining = 393, calls inlined = 454, statements flattened = 4677 [2022-09-16 11:36:29,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 11:36:29,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 11:36:29,958 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 11:36:29,958 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 11:36:29,964 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (1/1) ... [2022-09-16 11:36:29,964 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (1/1) ... [2022-09-16 11:36:29,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (1/1) ... [2022-09-16 11:36:29,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (1/1) ... [2022-09-16 11:36:30,058 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (1/1) ... [2022-09-16 11:36:30,075 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (1/1) ... [2022-09-16 11:36:30,086 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (1/1) ... [2022-09-16 11:36:30,106 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 11:36:30,107 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 11:36:30,107 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 11:36:30,108 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 11:36:30,115 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (1/1) ... [2022-09-16 11:36:30,120 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 11:36:30,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 11:36:30,151 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 11:36:30,154 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 11:36:30,185 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_insmod_4 [2022-09-16 11:36:30,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_insmod_4 [2022-09-16 11:36:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 11:36:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_scenario_3 [2022-09-16 11:36:30,186 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_scenario_3 [2022-09-16 11:36:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-09-16 11:36:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 11:36:30,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-09-16 11:36:30,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 11:36:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 11:36:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2022-09-16 11:36:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 11:36:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 11:36:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-09-16 11:36:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_character_driver_scenario_2 [2022-09-16 11:36:30,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_character_driver_scenario_2 [2022-09-16 11:36:30,189 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 11:36:30,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 11:36:30,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 11:36:30,193 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 11:36:30,673 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 11:36:30,674 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 11:36:33,689 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 11:36:33,721 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 11:36:33,722 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-16 11:36:33,727 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:36:33 BoogieIcfgContainer [2022-09-16 11:36:33,727 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 11:36:33,728 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 11:36:33,728 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 11:36:33,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 11:36:33,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 11:36:27" (1/3) ... [2022-09-16 11:36:33,731 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52998e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:36:33, skipping insertion in model container [2022-09-16 11:36:33,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 11:36:29" (2/3) ... [2022-09-16 11:36:33,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@52998e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 11:36:33, skipping insertion in model container [2022-09-16 11:36:33,732 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 11:36:33" (3/3) ... [2022-09-16 11:36:33,733 INFO L112 eAbstractionObserver]: Analyzing ICFG linux-3.14--drivers--usb--misc--iowarrior.ko.cil.i [2022-09-16 11:36:33,744 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 11:36:33,744 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 50 error locations. [2022-09-16 11:36:33,744 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 11:36:34,526 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2022-09-16 11:36:34,613 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 5969 places, 6209 transitions, 12454 flow [2022-09-16 11:36:53,295 INFO L130 PetriNetUnfolder]: 422/9967 cut-off events. [2022-09-16 11:36:53,296 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-09-16 11:36:54,674 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9990 conditions, 9967 events. 422/9967 cut-off events. For 7/7 co-relation queries the response was YES. Maximal size of possible extension queue 29. Compared 56410 event pairs, 0 based on Foata normal form. 0/9453 useless extension candidates. Maximal degree in co-relation 9404. Up to 26 conditions per place. [2022-09-16 11:36:54,675 INFO L82 GeneralOperation]: Start removeDead. Operand has 5969 places, 6209 transitions, 12454 flow [2022-09-16 11:36:54,852 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 5917 places, 6155 transitions, 12334 flow [2022-09-16 11:36:54,871 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 11:36:54,878 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;@7a694a4b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 11:36:54,878 INFO L358 AbstractCegarLoop]: Starting to check reachability of 105 error locations. [2022-09-16 11:36:56,669 INFO L130 PetriNetUnfolder]: 83/2904 cut-off events. [2022-09-16 11:36:56,670 INFO L131 PetriNetUnfolder]: For 7/7 co-relation queries the response was YES. [2022-09-16 11:36:56,670 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:36:56,672 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 11:36:56,672 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_usb_scenario_3Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-09-16 11:36:56,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:36:56,678 INFO L85 PathProgramCache]: Analyzing trace with hash 809151130, now seen corresponding path program 1 times [2022-09-16 11:36:56,689 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:36:56,689 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922826848] [2022-09-16 11:36:56,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:36:56,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:36:57,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:36:57,958 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 11:36:57,958 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:36:57,959 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922826848] [2022-09-16 11:36:57,960 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922826848] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:36:57,960 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:36:57,960 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-09-16 11:36:57,962 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240242307] [2022-09-16 11:36:57,963 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:36:57,976 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-16 11:36:57,976 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:36:58,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-16 11:36:58,021 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-16 11:36:58,049 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 6090 out of 6211 [2022-09-16 11:36:58,075 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 5917 places, 6155 transitions, 12334 flow. Second operand has 3 states, 3 states have (on average 6092.666666666667) internal successors, (18278), 3 states have internal predecessors, (18278), 0 states have call successors, (0), 0 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 11:36:58,076 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:36:58,076 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 6090 of 6211 [2022-09-16 11:36:58,077 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-16 11:37:43,196 INFO L130 PetriNetUnfolder]: 1463/43368 cut-off events. [2022-09-16 11:37:43,197 INFO L131 PetriNetUnfolder]: For 152/154 co-relation queries the response was YES. [2022-09-16 11:37:45,160 INFO L83 FinitePrefix]: Finished finitePrefix Result has 43639 conditions, 43368 events. 1463/43368 cut-off events. For 152/154 co-relation queries the response was YES. Maximal size of possible extension queue 82. Compared 411201 event pairs, 30 based on Foata normal form. 1044/42175 useless extension candidates. Maximal degree in co-relation 41371. Up to 130 conditions per place. [2022-09-16 11:37:45,407 INFO L137 encePairwiseOnDemand]: 6110/6211 looper letters, 29 selfloop transitions, 3 changer transitions 5/6066 dead transitions. [2022-09-16 11:37:45,408 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 5899 places, 6066 transitions, 12238 flow [2022-09-16 11:37:45,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-16 11:37:45,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-16 11:37:45,439 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 18485 transitions. [2022-09-16 11:37:45,447 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.99205710298932 [2022-09-16 11:37:45,448 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 18485 transitions. [2022-09-16 11:37:45,448 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 18485 transitions. [2022-09-16 11:37:45,458 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-16 11:37:45,460 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 18485 transitions. [2022-09-16 11:37:45,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 6161.666666666667) internal successors, (18485), 3 states have internal predecessors, (18485), 0 states have call successors, (0), 0 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 11:37:45,535 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 6211.0) internal successors, (24844), 4 states have internal predecessors, (24844), 0 states have call successors, (0), 0 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 11:37:45,544 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 6211.0) internal successors, (24844), 4 states have internal predecessors, (24844), 0 states have call successors, (0), 0 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 11:37:45,545 INFO L175 Difference]: Start difference. First operand has 5917 places, 6155 transitions, 12334 flow. Second operand 3 states and 18485 transitions. [2022-09-16 11:37:45,546 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 5899 places, 6066 transitions, 12238 flow [2022-09-16 11:37:45,589 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 5893 places, 6066 transitions, 12210 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-09-16 11:37:45,657 INFO L231 Difference]: Finished difference. Result has 5894 places, 6050 transitions, 12125 flow [2022-09-16 11:37:45,667 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=6211, PETRI_DIFFERENCE_MINUEND_FLOW=12114, PETRI_DIFFERENCE_MINUEND_PLACES=5891, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=6053, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=6050, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=12125, PETRI_PLACES=5894, PETRI_TRANSITIONS=6050} [2022-09-16 11:37:45,670 INFO L287 CegarLoopForPetriNet]: 5917 programPoint places, -23 predicate places. [2022-09-16 11:37:45,670 INFO L495 AbstractCegarLoop]: Abstraction has has 5894 places, 6050 transitions, 12125 flow [2022-09-16 11:37:45,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6092.666666666667) internal successors, (18278), 3 states have internal predecessors, (18278), 0 states have call successors, (0), 0 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 11:37:45,675 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-16 11:37:45,675 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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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 11:37:45,676 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 11:37:45,676 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ldv_character_driver_scenario_2Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, ldv_character_driver_scenario_2Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 103 more)] === [2022-09-16 11:37:45,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 11:37:45,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1420492294, now seen corresponding path program 1 times [2022-09-16 11:37:45,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 11:37:45,680 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1547206917] [2022-09-16 11:37:45,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 11:37:45,680 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 11:37:45,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 11:37:46,017 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 11:37:46,018 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 11:37:46,018 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1547206917] [2022-09-16 11:37:46,018 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1547206917] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 11:37:46,018 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 11:37:46,018 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-09-16 11:37:46,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1216194727] [2022-09-16 11:37:46,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 11:37:46,021 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-09-16 11:37:46,021 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 11:37:46,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-09-16 11:37:46,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-09-16 11:37:46,039 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 5690 out of 6211 [2022-09-16 11:37:46,056 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 5894 places, 6050 transitions, 12125 flow. Second operand has 5 states, 5 states have (on average 5734.2) internal successors, (28671), 5 states have internal predecessors, (28671), 0 states have call successors, (0), 0 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 11:37:46,056 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-16 11:37:46,060 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 5690 of 6211 [2022-09-16 11:37:46,060 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand