/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 -i ../../../trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-3902331-m [2022-09-20 22:55:59,973 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-20 22:55:59,975 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-20 22:55:59,995 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-20 22:55:59,996 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-20 22:55:59,997 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-20 22:55:59,997 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-20 22:55:59,998 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-20 22:55:59,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-20 22:56:00,000 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-20 22:56:00,001 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-20 22:56:00,001 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-20 22:56:00,001 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-20 22:56:00,002 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-20 22:56:00,003 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-20 22:56:00,003 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-20 22:56:00,004 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-20 22:56:00,004 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-20 22:56:00,005 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-20 22:56:00,006 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-20 22:56:00,007 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-20 22:56:00,008 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-20 22:56:00,009 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-20 22:56:00,009 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-20 22:56:00,011 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-20 22:56:00,011 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-20 22:56:00,011 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-20 22:56:00,012 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-20 22:56:00,012 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-20 22:56:00,013 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-20 22:56:00,013 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-20 22:56:00,013 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-20 22:56:00,014 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-20 22:56:00,014 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-20 22:56:00,015 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-20 22:56:00,015 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-20 22:56:00,015 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-20 22:56:00,015 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-20 22:56:00,016 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-20 22:56:00,016 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-20 22:56:00,016 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-20 22:56:00,017 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 [2022-09-20 22:56:00,034 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-20 22:56:00,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-20 22:56:00,034 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-20 22:56:00,035 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-20 22:56:00,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-20 22:56:00,035 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-20 22:56:00,035 INFO L138 SettingsManager]: * Use SBE=true [2022-09-20 22:56:00,035 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-20 22:56:00,035 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-20 22:56:00,036 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-20 22:56:00,036 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-20 22:56:00,037 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-20 22:56:00,037 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-20 22:56:00,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:56:00,037 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-20 22:56:00,037 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-20 22:56:00,037 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-20 22:56:00,037 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-20 22:56:00,037 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-20 22:56:00,037 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-20 22:56:00,037 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-09-20 22:56:00,037 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-09-20 22:56:00,175 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-20 22:56:00,197 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-20 22:56:00,199 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-20 22:56:00,199 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-20 22:56:00,201 INFO L275 PluginConnector]: CDTParser initialized [2022-09-20 22:56:00,202 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2022-09-20 22:56:00,251 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29fe407b6/05c04f26893345c3929151829237ebfd/FLAG96e6d8d2f [2022-09-20 22:56:00,599 INFO L306 CDTParser]: Found 1 translation units. [2022-09-20 22:56:00,599 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-bakery-2.wvr.c [2022-09-20 22:56:00,604 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29fe407b6/05c04f26893345c3929151829237ebfd/FLAG96e6d8d2f [2022-09-20 22:56:00,616 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/29fe407b6/05c04f26893345c3929151829237ebfd [2022-09-20 22:56:00,617 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-20 22:56:00,618 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-20 22:56:00,619 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-20 22:56:00,620 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-20 22:56:00,621 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-20 22:56:00,622 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,623 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b01cf68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00, skipping insertion in model container [2022-09-20 22:56:00,623 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,629 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-20 22:56:00,641 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-20 22:56:00,790 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-bakery-2.wvr.c[3512,3525] [2022-09-20 22:56:00,792 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:56:00,797 INFO L203 MainTranslator]: Completed pre-run [2022-09-20 22:56:00,810 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-bakery-2.wvr.c[3512,3525] [2022-09-20 22:56:00,811 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-20 22:56:00,820 INFO L208 MainTranslator]: Completed translation [2022-09-20 22:56:00,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00 WrapperNode [2022-09-20 22:56:00,820 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-20 22:56:00,821 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-20 22:56:00,821 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-20 22:56:00,821 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-20 22:56:00,826 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,830 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,846 INFO L138 Inliner]: procedures = 21, calls = 60, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 156 [2022-09-20 22:56:00,847 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-20 22:56:00,847 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-20 22:56:00,847 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-20 22:56:00,848 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-20 22:56:00,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,854 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,862 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,863 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,872 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,877 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-20 22:56:00,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-20 22:56:00,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-20 22:56:00,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-20 22:56:00,882 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (1/1) ... [2022-09-20 22:56:00,886 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-20 22:56:00,896 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-20 22:56:00,916 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) [2022-09-20 22:56:00,923 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 [2022-09-20 22:56:00,942 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-20 22:56:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-20 22:56:00,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-20 22:56:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-20 22:56:00,943 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-20 22:56:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-20 22:56:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-20 22:56:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-20 22:56:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-20 22:56:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-20 22:56:00,943 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-20 22:56:00,944 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-20 22:56:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-20 22:56:00,944 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-20 22:56:00,945 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-20 22:56:00,995 INFO L234 CfgBuilder]: Building ICFG [2022-09-20 22:56:00,996 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-20 22:56:01,198 INFO L275 CfgBuilder]: Performing block encoding [2022-09-20 22:56:01,266 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-20 22:56:01,266 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-09-20 22:56:01,268 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:56:01 BoogieIcfgContainer [2022-09-20 22:56:01,268 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-20 22:56:01,269 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-20 22:56:01,269 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-20 22:56:01,271 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-20 22:56:01,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 10:56:00" (1/3) ... [2022-09-20 22:56:01,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d55ac4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:56:01, skipping insertion in model container [2022-09-20 22:56:01,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 10:56:00" (2/3) ... [2022-09-20 22:56:01,272 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d55ac4e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 10:56:01, skipping insertion in model container [2022-09-20 22:56:01,272 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 10:56:01" (3/3) ... [2022-09-20 22:56:01,274 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-bakery-2.wvr.c [2022-09-20 22:56:01,285 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-20 22:56:01,285 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-09-20 22:56:01,285 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-20 22:56:01,346 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-09-20 22:56:01,385 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 113 places, 108 transitions, 232 flow [2022-09-20 22:56:01,450 INFO L130 PetriNetUnfolder]: 2/106 cut-off events. [2022-09-20 22:56:01,451 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-20 22:56:01,454 INFO L83 FinitePrefix]: Finished finitePrefix Result has 115 conditions, 106 events. 2/106 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/103 useless extension candidates. Maximal degree in co-relation 70. Up to 2 conditions per place. [2022-09-20 22:56:01,454 INFO L82 GeneralOperation]: Start removeDead. Operand has 113 places, 108 transitions, 232 flow [2022-09-20 22:56:01,458 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 102 places, 97 transitions, 206 flow [2022-09-20 22:56:01,476 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-20 22:56:01,481 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;@67379b49, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-20 22:56:01,481 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-09-20 22:56:01,499 INFO L130 PetriNetUnfolder]: 2/96 cut-off events. [2022-09-20 22:56:01,500 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2022-09-20 22:56:01,500 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:56:01,500 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] [2022-09-20 22:56:01,501 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:56:01,505 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:56:01,506 INFO L85 PathProgramCache]: Analyzing trace with hash -1691119551, now seen corresponding path program 1 times [2022-09-20 22:56:01,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:56:01,513 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [57334843] [2022-09-20 22:56:01,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:56:01,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:56:01,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:56:01,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:56:01,892 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:56:01,892 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [57334843] [2022-09-20 22:56:01,893 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [57334843] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:56:01,893 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:56:01,893 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 22:56:01,894 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839351588] [2022-09-20 22:56:01,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:56:01,900 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 22:56:01,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:56:01,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 22:56:01,921 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 22:56:01,924 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 108 [2022-09-20 22:56:01,927 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 102 places, 97 transitions, 206 flow. Second operand has 11 states, 11 states have (on average 75.72727272727273) internal successors, (833), 11 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:01,928 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:56:01,928 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 108 [2022-09-20 22:56:01,928 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:56:02,297 INFO L130 PetriNetUnfolder]: 46/296 cut-off events. [2022-09-20 22:56:02,298 INFO L131 PetriNetUnfolder]: For 53/53 co-relation queries the response was YES. [2022-09-20 22:56:02,299 INFO L83 FinitePrefix]: Finished finitePrefix Result has 483 conditions, 296 events. 46/296 cut-off events. For 53/53 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 1101 event pairs, 24 based on Foata normal form. 5/295 useless extension candidates. Maximal degree in co-relation 301. Up to 61 conditions per place. [2022-09-20 22:56:02,301 INFO L137 encePairwiseOnDemand]: 90/108 looper letters, 44 selfloop transitions, 13 changer transitions 18/138 dead transitions. [2022-09-20 22:56:02,301 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 117 places, 138 transitions, 465 flow [2022-09-20 22:56:02,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-09-20 22:56:02,304 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-09-20 22:56:02,312 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 1249 transitions. [2022-09-20 22:56:02,315 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7228009259259259 [2022-09-20 22:56:02,315 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 1249 transitions. [2022-09-20 22:56:02,316 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 1249 transitions. [2022-09-20 22:56:02,318 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:56:02,320 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 1249 transitions. [2022-09-20 22:56:02,324 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 78.0625) internal successors, (1249), 16 states have internal predecessors, (1249), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,331 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 108.0) internal successors, (1836), 17 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,332 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 108.0) internal successors, (1836), 17 states have internal predecessors, (1836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,333 INFO L175 Difference]: Start difference. First operand has 102 places, 97 transitions, 206 flow. Second operand 16 states and 1249 transitions. [2022-09-20 22:56:02,334 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 117 places, 138 transitions, 465 flow [2022-09-20 22:56:02,337 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 113 places, 138 transitions, 439 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-09-20 22:56:02,340 INFO L231 Difference]: Finished difference. Result has 118 places, 98 transitions, 246 flow [2022-09-20 22:56:02,342 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=194, PETRI_DIFFERENCE_MINUEND_PLACES=98, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=95, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=85, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=246, PETRI_PLACES=118, PETRI_TRANSITIONS=98} [2022-09-20 22:56:02,346 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 16 predicate places. [2022-09-20 22:56:02,347 INFO L495 AbstractCegarLoop]: Abstraction has has 118 places, 98 transitions, 246 flow [2022-09-20 22:56:02,347 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 75.72727272727273) internal successors, (833), 11 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,347 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:56:02,347 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] [2022-09-20 22:56:02,348 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-20 22:56:02,348 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:56:02,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:56:02,349 INFO L85 PathProgramCache]: Analyzing trace with hash 406477489, now seen corresponding path program 2 times [2022-09-20 22:56:02,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:56:02,349 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1535159928] [2022-09-20 22:56:02,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:56:02,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:56:02,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:56:02,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:56:02,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:56:02,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1535159928] [2022-09-20 22:56:02,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1535159928] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:56:02,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:56:02,423 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-20 22:56:02,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1054999939] [2022-09-20 22:56:02,423 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:56:02,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 22:56:02,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:56:02,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 22:56:02,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 22:56:02,425 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2022-09-20 22:56:02,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 118 places, 98 transitions, 246 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:56:02,426 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2022-09-20 22:56:02,426 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:56:02,468 INFO L130 PetriNetUnfolder]: 31/232 cut-off events. [2022-09-20 22:56:02,469 INFO L131 PetriNetUnfolder]: For 17/17 co-relation queries the response was YES. [2022-09-20 22:56:02,472 INFO L83 FinitePrefix]: Finished finitePrefix Result has 378 conditions, 232 events. 31/232 cut-off events. For 17/17 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 717 event pairs, 19 based on Foata normal form. 3/229 useless extension candidates. Maximal degree in co-relation 358. Up to 58 conditions per place. [2022-09-20 22:56:02,477 INFO L137 encePairwiseOnDemand]: 105/108 looper letters, 18 selfloop transitions, 2 changer transitions 1/102 dead transitions. [2022-09-20 22:56:02,477 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 110 places, 102 transitions, 297 flow [2022-09-20 22:56:02,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 22:56:02,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 22:56:02,478 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2022-09-20 22:56:02,478 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2022-09-20 22:56:02,478 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2022-09-20 22:56:02,479 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2022-09-20 22:56:02,479 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:56:02,479 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2022-09-20 22:56:02,479 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,480 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,480 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,481 INFO L175 Difference]: Start difference. First operand has 118 places, 98 transitions, 246 flow. Second operand 3 states and 286 transitions. [2022-09-20 22:56:02,481 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 110 places, 102 transitions, 297 flow [2022-09-20 22:56:02,484 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 105 places, 102 transitions, 287 flow, removed 3 selfloop flow, removed 5 redundant places. [2022-09-20 22:56:02,486 INFO L231 Difference]: Finished difference. Result has 106 places, 98 transitions, 244 flow [2022-09-20 22:56:02,486 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=236, PETRI_DIFFERENCE_MINUEND_PLACES=103, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=96, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=106, PETRI_TRANSITIONS=98} [2022-09-20 22:56:02,487 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 4 predicate places. [2022-09-20 22:56:02,487 INFO L495 AbstractCegarLoop]: Abstraction has has 106 places, 98 transitions, 244 flow [2022-09-20 22:56:02,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,488 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:56:02,488 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] [2022-09-20 22:56:02,488 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-09-20 22:56:02,488 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:56:02,488 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:56:02,489 INFO L85 PathProgramCache]: Analyzing trace with hash -586311985, now seen corresponding path program 3 times [2022-09-20 22:56:02,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:56:02,489 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523536002] [2022-09-20 22:56:02,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:56:02,489 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:56:02,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:56:02,651 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:56:02,652 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:56:02,652 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523536002] [2022-09-20 22:56:02,652 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523536002] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:56:02,652 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:56:02,652 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 22:56:02,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922195957] [2022-09-20 22:56:02,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:56:02,654 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 22:56:02,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:56:02,655 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 22:56:02,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-09-20 22:56:02,656 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-09-20 22:56:02,657 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 106 places, 98 transitions, 244 flow. Second operand has 8 states, 8 states have (on average 80.25) internal successors, (642), 8 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,657 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:56:02,657 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-09-20 22:56:02,657 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:56:02,801 INFO L130 PetriNetUnfolder]: 55/333 cut-off events. [2022-09-20 22:56:02,801 INFO L131 PetriNetUnfolder]: For 33/33 co-relation queries the response was YES. [2022-09-20 22:56:02,803 INFO L83 FinitePrefix]: Finished finitePrefix Result has 603 conditions, 333 events. 55/333 cut-off events. For 33/33 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1395 event pairs, 26 based on Foata normal form. 3/325 useless extension candidates. Maximal degree in co-relation 313. Up to 104 conditions per place. [2022-09-20 22:56:02,804 INFO L137 encePairwiseOnDemand]: 100/108 looper letters, 28 selfloop transitions, 7 changer transitions 15/122 dead transitions. [2022-09-20 22:56:02,804 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 113 places, 122 transitions, 400 flow [2022-09-20 22:56:02,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-20 22:56:02,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-20 22:56:02,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 667 transitions. [2022-09-20 22:56:02,806 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7719907407407407 [2022-09-20 22:56:02,806 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 667 transitions. [2022-09-20 22:56:02,806 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 667 transitions. [2022-09-20 22:56:02,807 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:56:02,807 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 667 transitions. [2022-09-20 22:56:02,808 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 83.375) internal successors, (667), 8 states have internal predecessors, (667), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,809 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,810 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,810 INFO L175 Difference]: Start difference. First operand has 106 places, 98 transitions, 244 flow. Second operand 8 states and 667 transitions. [2022-09-20 22:56:02,810 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 113 places, 122 transitions, 400 flow [2022-09-20 22:56:02,812 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 122 transitions, 396 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 22:56:02,814 INFO L231 Difference]: Finished difference. Result has 115 places, 101 transitions, 281 flow [2022-09-20 22:56:02,814 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=240, PETRI_DIFFERENCE_MINUEND_PLACES=104, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=98, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=281, PETRI_PLACES=115, PETRI_TRANSITIONS=101} [2022-09-20 22:56:02,815 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 13 predicate places. [2022-09-20 22:56:02,815 INFO L495 AbstractCegarLoop]: Abstraction has has 115 places, 101 transitions, 281 flow [2022-09-20 22:56:02,816 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.25) internal successors, (642), 8 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,816 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:56:02,816 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] [2022-09-20 22:56:02,816 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-09-20 22:56:02,816 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:56:02,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:56:02,817 INFO L85 PathProgramCache]: Analyzing trace with hash 1634082107, now seen corresponding path program 4 times [2022-09-20 22:56:02,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:56:02,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594237149] [2022-09-20 22:56:02,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:56:02,817 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:56:02,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:56:02,878 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:56:02,878 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:56:02,878 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594237149] [2022-09-20 22:56:02,878 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594237149] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:56:02,879 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:56:02,879 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-20 22:56:02,879 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825771734] [2022-09-20 22:56:02,879 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:56:02,880 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-09-20 22:56:02,882 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:56:02,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-09-20 22:56:02,882 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-09-20 22:56:02,883 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 88 out of 108 [2022-09-20 22:56:02,883 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 115 places, 101 transitions, 281 flow. Second operand has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,883 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:56:02,883 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 88 of 108 [2022-09-20 22:56:02,884 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:56:02,926 INFO L130 PetriNetUnfolder]: 33/270 cut-off events. [2022-09-20 22:56:02,926 INFO L131 PetriNetUnfolder]: For 78/79 co-relation queries the response was YES. [2022-09-20 22:56:02,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 515 conditions, 270 events. 33/270 cut-off events. For 78/79 co-relation queries the response was YES. Maximal size of possible extension queue 19. Compared 960 event pairs, 16 based on Foata normal form. 5/268 useless extension candidates. Maximal degree in co-relation 465. Up to 63 conditions per place. [2022-09-20 22:56:02,929 INFO L137 encePairwiseOnDemand]: 105/108 looper letters, 22 selfloop transitions, 2 changer transitions 0/106 dead transitions. [2022-09-20 22:56:02,929 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 115 places, 106 transitions, 351 flow [2022-09-20 22:56:02,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-09-20 22:56:02,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-09-20 22:56:02,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 286 transitions. [2022-09-20 22:56:02,930 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.8827160493827161 [2022-09-20 22:56:02,930 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 286 transitions. [2022-09-20 22:56:02,930 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 286 transitions. [2022-09-20 22:56:02,930 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:56:02,930 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 286 transitions. [2022-09-20 22:56:02,931 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 95.33333333333333) internal successors, (286), 3 states have internal predecessors, (286), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,931 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,932 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 108.0) internal successors, (432), 4 states have internal predecessors, (432), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,932 INFO L175 Difference]: Start difference. First operand has 115 places, 101 transitions, 281 flow. Second operand 3 states and 286 transitions. [2022-09-20 22:56:02,932 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 115 places, 106 transitions, 351 flow [2022-09-20 22:56:02,936 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 111 places, 106 transitions, 341 flow, removed 1 selfloop flow, removed 4 redundant places. [2022-09-20 22:56:02,938 INFO L231 Difference]: Finished difference. Result has 112 places, 101 transitions, 280 flow [2022-09-20 22:56:02,938 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=272, PETRI_DIFFERENCE_MINUEND_PLACES=109, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=99, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=280, PETRI_PLACES=112, PETRI_TRANSITIONS=101} [2022-09-20 22:56:02,940 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 10 predicate places. [2022-09-20 22:56:02,940 INFO L495 AbstractCegarLoop]: Abstraction has has 112 places, 101 transitions, 280 flow [2022-09-20 22:56:02,940 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.66666666666667) internal successors, (281), 3 states have internal predecessors, (281), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:02,941 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:56:02,943 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] [2022-09-20 22:56:02,945 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-09-20 22:56:02,945 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:56:02,945 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:56:02,945 INFO L85 PathProgramCache]: Analyzing trace with hash -1258756065, now seen corresponding path program 5 times [2022-09-20 22:56:02,945 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:56:02,946 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001213644] [2022-09-20 22:56:02,946 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:56:02,946 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:56:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:56:03,144 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:56:03,144 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:56:03,144 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001213644] [2022-09-20 22:56:03,144 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001213644] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:56:03,144 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:56:03,144 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2022-09-20 22:56:03,145 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224443955] [2022-09-20 22:56:03,145 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:56:03,145 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-09-20 22:56:03,145 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:56:03,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-09-20 22:56:03,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=40, Unknown=0, NotChecked=0, Total=72 [2022-09-20 22:56:03,146 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-09-20 22:56:03,147 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 112 places, 101 transitions, 280 flow. Second operand has 9 states, 9 states have (on average 79.88888888888889) internal successors, (719), 9 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,147 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:56:03,147 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-09-20 22:56:03,147 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:56:03,265 INFO L130 PetriNetUnfolder]: 57/384 cut-off events. [2022-09-20 22:56:03,265 INFO L131 PetriNetUnfolder]: For 169/169 co-relation queries the response was YES. [2022-09-20 22:56:03,266 INFO L83 FinitePrefix]: Finished finitePrefix Result has 810 conditions, 384 events. 57/384 cut-off events. For 169/169 co-relation queries the response was YES. Maximal size of possible extension queue 20. Compared 1709 event pairs, 18 based on Foata normal form. 3/377 useless extension candidates. Maximal degree in co-relation 550. Up to 89 conditions per place. [2022-09-20 22:56:03,267 INFO L137 encePairwiseOnDemand]: 98/108 looper letters, 35 selfloop transitions, 15 changer transitions 7/129 dead transitions. [2022-09-20 22:56:03,267 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 120 places, 129 transitions, 494 flow [2022-09-20 22:56:03,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-09-20 22:56:03,268 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-09-20 22:56:03,269 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 747 transitions. [2022-09-20 22:56:03,269 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7685185185185185 [2022-09-20 22:56:03,269 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 747 transitions. [2022-09-20 22:56:03,269 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 747 transitions. [2022-09-20 22:56:03,269 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:56:03,270 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 747 transitions. [2022-09-20 22:56:03,271 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 83.0) internal successors, (747), 9 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,273 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,274 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 108.0) internal successors, (1080), 10 states have internal predecessors, (1080), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,274 INFO L175 Difference]: Start difference. First operand has 112 places, 101 transitions, 280 flow. Second operand 9 states and 747 transitions. [2022-09-20 22:56:03,274 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 120 places, 129 transitions, 494 flow [2022-09-20 22:56:03,276 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 118 places, 129 transitions, 490 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-09-20 22:56:03,277 INFO L231 Difference]: Finished difference. Result has 122 places, 109 transitions, 362 flow [2022-09-20 22:56:03,277 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=276, PETRI_DIFFERENCE_MINUEND_PLACES=110, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=101, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=9, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=90, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=362, PETRI_PLACES=122, PETRI_TRANSITIONS=109} [2022-09-20 22:56:03,279 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 20 predicate places. [2022-09-20 22:56:03,279 INFO L495 AbstractCegarLoop]: Abstraction has has 122 places, 109 transitions, 362 flow [2022-09-20 22:56:03,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 79.88888888888889) internal successors, (719), 9 states have internal predecessors, (719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,280 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:56:03,280 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] [2022-09-20 22:56:03,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-09-20 22:56:03,280 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:56:03,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:56:03,281 INFO L85 PathProgramCache]: Analyzing trace with hash -1719766423, now seen corresponding path program 6 times [2022-09-20 22:56:03,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:56:03,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [465415522] [2022-09-20 22:56:03,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:56:03,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:56:03,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:56:03,423 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:56:03,423 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:56:03,423 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [465415522] [2022-09-20 22:56:03,423 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [465415522] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:56:03,423 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:56:03,424 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:56:03,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1554918355] [2022-09-20 22:56:03,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:56:03,424 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:56:03,424 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:56:03,425 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:56:03,425 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:56:03,426 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-09-20 22:56:03,426 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 122 places, 109 transitions, 362 flow. Second operand has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,426 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:56:03,427 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-09-20 22:56:03,427 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:56:03,532 INFO L130 PetriNetUnfolder]: 38/337 cut-off events. [2022-09-20 22:56:03,532 INFO L131 PetriNetUnfolder]: For 351/361 co-relation queries the response was YES. [2022-09-20 22:56:03,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 755 conditions, 337 events. 38/337 cut-off events. For 351/361 co-relation queries the response was YES. Maximal size of possible extension queue 18. Compared 1433 event pairs, 15 based on Foata normal form. 6/335 useless extension candidates. Maximal degree in co-relation 504. Up to 124 conditions per place. [2022-09-20 22:56:03,534 INFO L137 encePairwiseOnDemand]: 99/108 looper letters, 30 selfloop transitions, 9 changer transitions 7/118 dead transitions. [2022-09-20 22:56:03,534 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 127 places, 118 transitions, 500 flow [2022-09-20 22:56:03,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:56:03,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:56:03,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 580 transitions. [2022-09-20 22:56:03,535 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7671957671957672 [2022-09-20 22:56:03,535 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 580 transitions. [2022-09-20 22:56:03,535 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 580 transitions. [2022-09-20 22:56:03,536 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:56:03,536 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 580 transitions. [2022-09-20 22:56:03,536 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 82.85714285714286) internal successors, (580), 7 states have internal predecessors, (580), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,537 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,538 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,538 INFO L175 Difference]: Start difference. First operand has 122 places, 109 transitions, 362 flow. Second operand 7 states and 580 transitions. [2022-09-20 22:56:03,538 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 127 places, 118 transitions, 500 flow [2022-09-20 22:56:03,540 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 121 places, 118 transitions, 474 flow, removed 8 selfloop flow, removed 6 redundant places. [2022-09-20 22:56:03,541 INFO L231 Difference]: Finished difference. Result has 123 places, 108 transitions, 360 flow [2022-09-20 22:56:03,541 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=340, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=109, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=8, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=100, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=360, PETRI_PLACES=123, PETRI_TRANSITIONS=108} [2022-09-20 22:56:03,543 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 21 predicate places. [2022-09-20 22:56:03,543 INFO L495 AbstractCegarLoop]: Abstraction has has 123 places, 108 transitions, 360 flow [2022-09-20 22:56:03,544 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,544 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:56:03,545 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] [2022-09-20 22:56:03,545 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-09-20 22:56:03,545 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:56:03,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:56:03,545 INFO L85 PathProgramCache]: Analyzing trace with hash 1944451625, now seen corresponding path program 7 times [2022-09-20 22:56:03,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:56:03,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275300113] [2022-09-20 22:56:03,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:56:03,546 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:56:03,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:56:03,674 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:56:03,674 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:56:03,674 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275300113] [2022-09-20 22:56:03,674 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275300113] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:56:03,674 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:56:03,674 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-09-20 22:56:03,678 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1478430729] [2022-09-20 22:56:03,678 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:56:03,678 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-09-20 22:56:03,678 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:56:03,678 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-09-20 22:56:03,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-09-20 22:56:03,679 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-09-20 22:56:03,679 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 123 places, 108 transitions, 360 flow. Second operand has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,680 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:56:03,680 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-09-20 22:56:03,680 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:56:03,753 INFO L130 PetriNetUnfolder]: 22/278 cut-off events. [2022-09-20 22:56:03,754 INFO L131 PetriNetUnfolder]: For 218/226 co-relation queries the response was YES. [2022-09-20 22:56:03,754 INFO L83 FinitePrefix]: Finished finitePrefix Result has 597 conditions, 278 events. 22/278 cut-off events. For 218/226 co-relation queries the response was YES. Maximal size of possible extension queue 15. Compared 1042 event pairs, 16 based on Foata normal form. 4/275 useless extension candidates. Maximal degree in co-relation 345. Up to 101 conditions per place. [2022-09-20 22:56:03,755 INFO L137 encePairwiseOnDemand]: 101/108 looper letters, 28 selfloop transitions, 4 changer transitions 7/111 dead transitions. [2022-09-20 22:56:03,755 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 129 places, 111 transitions, 448 flow [2022-09-20 22:56:03,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-09-20 22:56:03,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-09-20 22:56:03,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 573 transitions. [2022-09-20 22:56:03,757 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7579365079365079 [2022-09-20 22:56:03,757 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 573 transitions. [2022-09-20 22:56:03,757 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 573 transitions. [2022-09-20 22:56:03,757 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:56:03,757 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 573 transitions. [2022-09-20 22:56:03,758 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 81.85714285714286) internal successors, (573), 7 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) [2022-09-20 22:56:03,759 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,760 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 108.0) internal successors, (864), 8 states have internal predecessors, (864), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,760 INFO L175 Difference]: Start difference. First operand has 123 places, 108 transitions, 360 flow. Second operand 7 states and 573 transitions. [2022-09-20 22:56:03,760 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 129 places, 111 transitions, 448 flow [2022-09-20 22:56:03,761 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 124 places, 111 transitions, 425 flow, removed 4 selfloop flow, removed 5 redundant places. [2022-09-20 22:56:03,762 INFO L231 Difference]: Finished difference. Result has 125 places, 104 transitions, 322 flow [2022-09-20 22:56:03,763 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=333, PETRI_DIFFERENCE_MINUEND_PLACES=118, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=107, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=103, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=322, PETRI_PLACES=125, PETRI_TRANSITIONS=104} [2022-09-20 22:56:03,763 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 23 predicate places. [2022-09-20 22:56:03,763 INFO L495 AbstractCegarLoop]: Abstraction has has 125 places, 104 transitions, 322 flow [2022-09-20 22:56:03,763 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 80.71428571428571) internal successors, (565), 7 states have internal predecessors, (565), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,763 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:56:03,764 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] [2022-09-20 22:56:03,764 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-09-20 22:56:03,764 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:56:03,764 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:56:03,764 INFO L85 PathProgramCache]: Analyzing trace with hash -1575469029, now seen corresponding path program 8 times [2022-09-20 22:56:03,764 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:56:03,764 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403178961] [2022-09-20 22:56:03,764 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:56:03,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:56:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:56:03,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:56:03,904 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:56:03,904 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1403178961] [2022-09-20 22:56:03,904 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1403178961] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:56:03,904 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:56:03,904 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-09-20 22:56:03,904 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1853614026] [2022-09-20 22:56:03,904 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:56:03,904 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-09-20 22:56:03,905 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:56:03,905 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-09-20 22:56:03,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2022-09-20 22:56:03,906 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 108 [2022-09-20 22:56:03,906 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 125 places, 104 transitions, 322 flow. Second operand has 11 states, 11 states have (on average 75.72727272727273) internal successors, (833), 11 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:03,906 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:56:03,906 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 108 [2022-09-20 22:56:03,907 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:56:04,118 INFO L130 PetriNetUnfolder]: 26/271 cut-off events. [2022-09-20 22:56:04,118 INFO L131 PetriNetUnfolder]: For 166/166 co-relation queries the response was YES. [2022-09-20 22:56:04,119 INFO L83 FinitePrefix]: Finished finitePrefix Result has 573 conditions, 271 events. 26/271 cut-off events. For 166/166 co-relation queries the response was YES. Maximal size of possible extension queue 14. Compared 936 event pairs, 9 based on Foata normal form. 2/271 useless extension candidates. Maximal degree in co-relation 449. Up to 37 conditions per place. [2022-09-20 22:56:04,120 INFO L137 encePairwiseOnDemand]: 94/108 looper letters, 31 selfloop transitions, 12 changer transitions 21/129 dead transitions. [2022-09-20 22:56:04,120 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 133 places, 129 transitions, 539 flow [2022-09-20 22:56:04,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-09-20 22:56:04,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2022-09-20 22:56:04,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 935 transitions. [2022-09-20 22:56:04,122 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7214506172839507 [2022-09-20 22:56:04,122 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 935 transitions. [2022-09-20 22:56:04,122 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 935 transitions. [2022-09-20 22:56:04,122 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:56:04,123 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 935 transitions. [2022-09-20 22:56:04,124 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 77.91666666666667) internal successors, (935), 12 states have internal predecessors, (935), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:04,125 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:04,126 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 108.0) internal successors, (1404), 13 states have internal predecessors, (1404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:04,126 INFO L175 Difference]: Start difference. First operand has 125 places, 104 transitions, 322 flow. Second operand 12 states and 935 transitions. [2022-09-20 22:56:04,126 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 133 places, 129 transitions, 539 flow [2022-09-20 22:56:04,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 126 places, 129 transitions, 521 flow, removed 3 selfloop flow, removed 7 redundant places. [2022-09-20 22:56:04,129 INFO L231 Difference]: Finished difference. Result has 129 places, 97 transitions, 301 flow [2022-09-20 22:56:04,129 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=306, PETRI_DIFFERENCE_MINUEND_PLACES=115, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=104, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=92, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=301, PETRI_PLACES=129, PETRI_TRANSITIONS=97} [2022-09-20 22:56:04,131 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, 27 predicate places. [2022-09-20 22:56:04,131 INFO L495 AbstractCegarLoop]: Abstraction has has 129 places, 97 transitions, 301 flow [2022-09-20 22:56:04,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 75.72727272727273) internal successors, (833), 11 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:04,131 INFO L200 CegarLoopForPetriNet]: Found error trace [2022-09-20 22:56:04,131 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] [2022-09-20 22:56:04,132 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-09-20 22:56:04,132 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2022-09-20 22:56:04,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-20 22:56:04,132 INFO L85 PathProgramCache]: Analyzing trace with hash -1730718057, now seen corresponding path program 9 times [2022-09-20 22:56:04,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-20 22:56:04,132 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929204946] [2022-09-20 22:56:04,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-20 22:56:04,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-20 22:56:04,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-20 22:56:04,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-20 22:56:04,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-20 22:56:04,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929204946] [2022-09-20 22:56:04,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [929204946] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-20 22:56:04,233 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-20 22:56:04,233 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-09-20 22:56:04,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076376648] [2022-09-20 22:56:04,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-20 22:56:04,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-09-20 22:56:04,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-20 22:56:04,233 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-09-20 22:56:04,233 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2022-09-20 22:56:04,234 INFO L477 CegarLoopForPetriNet]: Number of universal loopers: 77 out of 108 [2022-09-20 22:56:04,235 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 129 places, 97 transitions, 301 flow. Second operand has 8 states, 8 states have (on average 80.25) internal successors, (642), 8 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:04,235 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-09-20 22:56:04,235 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 77 of 108 [2022-09-20 22:56:04,235 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-09-20 22:56:04,289 INFO L130 PetriNetUnfolder]: 4/84 cut-off events. [2022-09-20 22:56:04,290 INFO L131 PetriNetUnfolder]: For 35/35 co-relation queries the response was YES. [2022-09-20 22:56:04,290 INFO L83 FinitePrefix]: Finished finitePrefix Result has 179 conditions, 84 events. 4/84 cut-off events. For 35/35 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 50 event pairs, 0 based on Foata normal form. 3/87 useless extension candidates. Maximal degree in co-relation 163. Up to 10 conditions per place. [2022-09-20 22:56:04,290 INFO L137 encePairwiseOnDemand]: 101/108 looper letters, 0 selfloop transitions, 0 changer transitions 73/73 dead transitions. [2022-09-20 22:56:04,290 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 108 places, 73 transitions, 252 flow [2022-09-20 22:56:04,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-09-20 22:56:04,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2022-09-20 22:56:04,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 636 transitions. [2022-09-20 22:56:04,292 INFO L522 CegarLoopForPetriNet]: DFA transition density 0.7361111111111112 [2022-09-20 22:56:04,292 INFO L72 ComplementDD]: Start complementDD. Operand 8 states and 636 transitions. [2022-09-20 22:56:04,292 INFO L73 IsDeterministic]: Start isDeterministic. Operand 8 states and 636 transitions. [2022-09-20 22:56:04,292 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-09-20 22:56:04,292 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 8 states and 636 transitions. [2022-09-20 22:56:04,293 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 9 states, 8 states have (on average 79.5) internal successors, (636), 8 states have internal predecessors, (636), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:04,294 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:04,295 INFO L81 ComplementDD]: Finished complementDD. Result has 9 states, 9 states have (on average 108.0) internal successors, (972), 9 states have internal predecessors, (972), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:04,295 INFO L175 Difference]: Start difference. First operand has 129 places, 97 transitions, 301 flow. Second operand 8 states and 636 transitions. [2022-09-20 22:56:04,295 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 108 places, 73 transitions, 252 flow [2022-09-20 22:56:04,296 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 89 places, 73 transitions, 205 flow, removed 3 selfloop flow, removed 19 redundant places. [2022-09-20 22:56:04,296 INFO L231 Difference]: Finished difference. Result has 89 places, 0 transitions, 0 flow [2022-09-20 22:56:04,296 INFO L270 CegarLoopForPetriNet]: {PETRI_ALPHABET=108, PETRI_DIFFERENCE_MINUEND_FLOW=159, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=71, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=8, PETRI_FLOW=0, PETRI_PLACES=89, PETRI_TRANSITIONS=0} [2022-09-20 22:56:04,297 INFO L287 CegarLoopForPetriNet]: 102 programPoint places, -13 predicate places. [2022-09-20 22:56:04,297 INFO L495 AbstractCegarLoop]: Abstraction has has 89 places, 0 transitions, 0 flow [2022-09-20 22:56:04,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 80.25) internal successors, (642), 8 states have internal predecessors, (642), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-09-20 22:56:04,299 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2022-09-20 22:56:04,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2022-09-20 22:56:04,300 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2022-09-20 22:56:04,300 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-09-20 22:56:04,300 INFO L444 BasicCegarLoop]: Path program histogram: [9] [2022-09-20 22:56:04,302 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-09-20 22:56:04,303 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-09-20 22:56:04,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 10:56:04 BasicIcfg [2022-09-20 22:56:04,309 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-09-20 22:56:04,310 INFO L158 Benchmark]: Toolchain (without parser) took 3691.35ms. Allocated memory was 234.9MB in the beginning and 282.1MB in the end (delta: 47.2MB). Free memory was 203.6MB in the beginning and 126.7MB in the end (delta: 76.9MB). Peak memory consumption was 123.5MB. Max. memory is 8.0GB. [2022-09-20 22:56:04,310 INFO L158 Benchmark]: CDTParser took 0.12ms. Allocated memory is still 234.9MB. Free memory is still 192.6MB. There was no memory consumed. Max. memory is 8.0GB. [2022-09-20 22:56:04,310 INFO L158 Benchmark]: CACSL2BoogieTranslator took 200.93ms. Allocated memory is still 234.9MB. Free memory was 203.5MB in the beginning and 206.1MB in the end (delta: -2.6MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. [2022-09-20 22:56:04,310 INFO L158 Benchmark]: Boogie Procedure Inliner took 26.04ms. Allocated memory is still 234.9MB. Free memory was 206.1MB in the beginning and 204.2MB in the end (delta: 1.9MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-09-20 22:56:04,311 INFO L158 Benchmark]: Boogie Preprocessor took 30.77ms. Allocated memory is still 234.9MB. Free memory was 204.2MB in the beginning and 202.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-09-20 22:56:04,311 INFO L158 Benchmark]: RCFGBuilder took 389.46ms. Allocated memory is still 234.9MB. Free memory was 202.9MB in the beginning and 185.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-09-20 22:56:04,311 INFO L158 Benchmark]: TraceAbstraction took 3040.11ms. Allocated memory was 234.9MB in the beginning and 282.1MB in the end (delta: 47.2MB). Free memory was 184.9MB in the beginning and 126.7MB in the end (delta: 58.2MB). Peak memory consumption was 104.7MB. Max. memory is 8.0GB. [2022-09-20 22:56:04,312 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12ms. Allocated memory is still 234.9MB. Free memory is still 192.6MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 200.93ms. Allocated memory is still 234.9MB. Free memory was 203.5MB in the beginning and 206.1MB in the end (delta: -2.6MB). Peak memory consumption was 10.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 26.04ms. Allocated memory is still 234.9MB. Free memory was 206.1MB in the beginning and 204.2MB in the end (delta: 1.9MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 30.77ms. Allocated memory is still 234.9MB. Free memory was 204.2MB in the beginning and 202.9MB in the end (delta: 1.3MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 389.46ms. Allocated memory is still 234.9MB. Free memory was 202.9MB in the beginning and 185.8MB in the end (delta: 17.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 3040.11ms. Allocated memory was 234.9MB in the beginning and 282.1MB in the end (delta: 47.2MB). Free memory was 184.9MB in the beginning and 126.7MB in the end (delta: 58.2MB). Peak memory consumption was 104.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 130]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 133 locations, 3 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 2.9s, OverallIterations: 9, TraceHistogramMax: 1, PathProgramHistogramMax: 9, EmptinessCheckTime: 0.0s, AutomataDifference: 1.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 283 SdHoareTripleChecker+Valid, 0.5s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 283 mSDsluCounter, 329 SdHoareTripleChecker+Invalid, 0.4s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 653 mSDsCounter, 74 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1188 IncrementalHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 74 mSolverCounterUnsat, 112 mSDtfsCounter, 1188 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 99 GetRequests, 25 SyntacticMatches, 1 SemanticMatches, 73 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=362occurred in iteration=5, InterpolantAutomatonStates: 73, 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, 0.9s InterpolantComputationTime, 837 NumberOfCodeBlocks, 837 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 828 ConstructedInterpolants, 0 QuantifiedInterpolants, 2621 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-09-20 22:56:04,356 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...