/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-PN-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/parallel-lamport.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 01:09:58,939 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 01:09:58,941 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 01:09:59,009 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 01:09:59,010 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 01:09:59,012 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 01:09:59,013 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 01:09:59,016 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 01:09:59,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 01:09:59,019 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 01:09:59,020 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 01:09:59,021 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 01:09:59,021 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 01:09:59,022 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 01:09:59,023 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 01:09:59,025 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 01:09:59,026 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 01:09:59,026 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 01:09:59,028 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 01:09:59,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 01:09:59,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 01:09:59,034 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 01:09:59,035 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 01:09:59,036 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 01:09:59,038 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-01-19 01:09:59,038 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-01-19 01:09:59,038 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-01-19 01:09:59,039 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-01-19 01:09:59,039 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-01-19 01:09:59,039 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-01-19 01:09:59,039 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 01:09:59,040 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 01:09:59,041 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 01:09:59,041 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 01:09:59,042 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 01:09:59,042 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 01:09:59,043 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 01:09:59,043 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 01:09:59,043 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 01:09:59,044 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 01:09:59,044 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 01:09:59,045 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 [2022-01-19 01:09:59,068 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 01:09:59,068 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 01:09:59,069 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 01:09:59,069 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 01:09:59,070 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 01:09:59,070 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 01:09:59,070 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 01:09:59,070 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 01:09:59,070 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 01:09:59,070 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 01:09:59,071 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 01:09:59,071 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 01:09:59,072 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 01:09:59,072 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 01:09:59,072 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 01:09:59,072 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 01:09:59,072 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 01:09:59,073 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 01:09:59,073 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 01:09:59,073 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 01:09:59,073 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 01:09:59,073 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 01:09:59,253 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 01:09:59,267 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 01:09:59,269 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 01:09:59,269 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 01:09:59,270 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 01:09:59,271 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/parallel-lamport.wvr.c [2022-01-19 01:09:59,325 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f95bdf1a6/fd0bd0e8e6cd415ab579a2064e9f8e1e/FLAG04c93af04 [2022-01-19 01:09:59,701 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 01:09:59,701 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-lamport.wvr.c [2022-01-19 01:09:59,710 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f95bdf1a6/fd0bd0e8e6cd415ab579a2064e9f8e1e/FLAG04c93af04 [2022-01-19 01:09:59,721 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f95bdf1a6/fd0bd0e8e6cd415ab579a2064e9f8e1e [2022-01-19 01:09:59,724 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 01:09:59,725 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 01:09:59,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 01:09:59,728 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 01:09:59,729 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 01:09:59,730 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:09:59" (1/1) ... [2022-01-19 01:09:59,731 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@768e1f0d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:09:59, skipping insertion in model container [2022-01-19 01:09:59,731 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 01:09:59" (1/1) ... [2022-01-19 01:09:59,736 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 01:09:59,759 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 01:09:59,949 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-lamport.wvr.c[4210,4223] [2022-01-19 01:09:59,962 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 01:09:59,968 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 01:09:59,997 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-lamport.wvr.c[4210,4223] [2022-01-19 01:09:59,999 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 01:10:00,010 INFO L208 MainTranslator]: Completed translation [2022-01-19 01:10:00,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00 WrapperNode [2022-01-19 01:10:00,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 01:10:00,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 01:10:00,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 01:10:00,013 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 01:10:00,017 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (1/1) ... [2022-01-19 01:10:00,030 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (1/1) ... [2022-01-19 01:10:00,053 INFO L137 Inliner]: procedures = 25, calls = 89, calls flagged for inlining = 15, calls inlined = 15, statements flattened = 235 [2022-01-19 01:10:00,053 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 01:10:00,054 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 01:10:00,054 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 01:10:00,054 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 01:10:00,059 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (1/1) ... [2022-01-19 01:10:00,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (1/1) ... [2022-01-19 01:10:00,064 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (1/1) ... [2022-01-19 01:10:00,064 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (1/1) ... [2022-01-19 01:10:00,068 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (1/1) ... [2022-01-19 01:10:00,071 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (1/1) ... [2022-01-19 01:10:00,072 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (1/1) ... [2022-01-19 01:10:00,076 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 01:10:00,079 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 01:10:00,079 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 01:10:00,080 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 01:10:00,080 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (1/1) ... [2022-01-19 01:10:00,084 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 01:10:00,093 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 01:10:00,101 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-19 01:10:00,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-19 01:10:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 01:10:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 01:10:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 01:10:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-19 01:10:00,127 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-19 01:10:00,128 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-19 01:10:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-19 01:10:00,128 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-19 01:10:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-01-19 01:10:00,128 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-01-19 01:10:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 01:10:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 01:10:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 01:10:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-19 01:10:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 01:10:00,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 01:10:00,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 01:10:00,129 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-19 01:10:00,188 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 01:10:00,189 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 01:10:00,396 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 01:10:00,451 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 01:10:00,451 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2022-01-19 01:10:00,453 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:10:00 BoogieIcfgContainer [2022-01-19 01:10:00,453 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 01:10:00,454 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 01:10:00,454 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 01:10:00,456 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 01:10:00,456 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 01:09:59" (1/3) ... [2022-01-19 01:10:00,456 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191969c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:10:00, skipping insertion in model container [2022-01-19 01:10:00,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 01:10:00" (2/3) ... [2022-01-19 01:10:00,457 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@191969c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 01:10:00, skipping insertion in model container [2022-01-19 01:10:00,457 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 01:10:00" (3/3) ... [2022-01-19 01:10:00,458 INFO L111 eAbstractionObserver]: Analyzing ICFG parallel-lamport.wvr.c [2022-01-19 01:10:00,461 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 01:10:00,461 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 01:10:00,461 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 01:10:00,501 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,502 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,503 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,504 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,504 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,505 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,505 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,505 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,505 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,505 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,505 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,505 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,506 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,506 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,506 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,506 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,506 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,506 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,507 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,507 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,507 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,507 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,507 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,507 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,507 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,507 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,508 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,508 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,508 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,508 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,508 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,508 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,508 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,508 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,510 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,510 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,511 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,511 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_#t~mem2#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,511 WARN L322 ript$VariableManager]: TermVariabe |thread2Thread1of1ForFork0_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,511 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,511 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,511 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,512 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,512 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem3#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,512 WARN L322 ript$VariableManager]: TermVariabe |thread3Thread1of1ForFork1_#t~mem4#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_#in~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#res#1.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_assume_abort_if_not_~cond#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,512 WARN L322 ript$VariableManager]: TermVariabe |thread1Thread1of1ForFork2_#t~mem1#1| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 01:10:00,515 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-01-19 01:10:00,551 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 01:10:00,559 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-19 01:10:00,559 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 01:10:00,570 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 189 places, 186 transitions, 396 flow [2022-01-19 01:10:00,641 INFO L129 PetriNetUnfolder]: 7/183 cut-off events. [2022-01-19 01:10:00,641 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 01:10:00,644 INFO L84 FinitePrefix]: Finished finitePrefix Result has 196 conditions, 183 events. 7/183 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 100 event pairs, 0 based on Foata normal form. 0/175 useless extension candidates. Maximal degree in co-relation 150. Up to 2 conditions per place. [2022-01-19 01:10:00,644 INFO L82 GeneralOperation]: Start removeDead. Operand has 189 places, 186 transitions, 396 flow [2022-01-19 01:10:00,650 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 175 places, 172 transitions, 362 flow [2022-01-19 01:10:00,683 INFO L129 PetriNetUnfolder]: 7/171 cut-off events. [2022-01-19 01:10:00,684 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-01-19 01:10:00,684 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:00,685 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:00,685 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:00,688 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:00,688 INFO L85 PathProgramCache]: Analyzing trace with hash 1585459092, now seen corresponding path program 1 times [2022-01-19 01:10:00,699 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:00,700 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425286592] [2022-01-19 01:10:00,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:00,700 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:00,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:00,886 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:00,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:00,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425286592] [2022-01-19 01:10:00,888 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425286592] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:10:00,889 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:10:00,893 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-19 01:10:00,894 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786862680] [2022-01-19 01:10:00,894 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:10:00,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-19 01:10:00,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:00,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-19 01:10:00,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-19 01:10:00,926 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 162 out of 186 [2022-01-19 01:10:00,931 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 175 places, 172 transitions, 362 flow. Second operand has 2 states, 2 states have (on average 171.0) internal successors, (342), 2 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:00,931 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:00,931 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 162 of 186 [2022-01-19 01:10:00,932 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:01,086 INFO L129 PetriNetUnfolder]: 215/670 cut-off events. [2022-01-19 01:10:01,086 INFO L130 PetriNetUnfolder]: For 106/106 co-relation queries the response was YES. [2022-01-19 01:10:01,090 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1131 conditions, 670 events. 215/670 cut-off events. For 106/106 co-relation queries the response was YES. Maximal size of possible extension queue 46. Compared 3318 event pairs, 214 based on Foata normal form. 6/665 useless extension candidates. Maximal degree in co-relation 942. Up to 370 conditions per place. [2022-01-19 01:10:01,094 INFO L132 encePairwiseOnDemand]: 180/186 looper letters, 17 selfloop transitions, 0 changer transitions 5/166 dead transitions. [2022-01-19 01:10:01,094 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 176 places, 166 transitions, 384 flow [2022-01-19 01:10:01,097 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-19 01:10:01,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2022-01-19 01:10:01,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 347 transitions. [2022-01-19 01:10:01,108 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9327956989247311 [2022-01-19 01:10:01,109 INFO L72 ComplementDD]: Start complementDD. Operand 2 states and 347 transitions. [2022-01-19 01:10:01,109 INFO L73 IsDeterministic]: Start isDeterministic. Operand 2 states and 347 transitions. [2022-01-19 01:10:01,111 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:01,113 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 2 states and 347 transitions. [2022-01-19 01:10:01,117 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 3 states, 2 states have (on average 173.5) internal successors, (347), 2 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:01,121 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:01,122 INFO L81 ComplementDD]: Finished complementDD. Result has 3 states, 3 states have (on average 186.0) internal successors, (558), 3 states have internal predecessors, (558), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:01,123 INFO L186 Difference]: Start difference. First operand has 175 places, 172 transitions, 362 flow. Second operand 2 states and 347 transitions. [2022-01-19 01:10:01,124 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 176 places, 166 transitions, 384 flow [2022-01-19 01:10:01,127 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 170 places, 166 transitions, 372 flow, removed 0 selfloop flow, removed 6 redundant places. [2022-01-19 01:10:01,130 INFO L242 Difference]: Finished difference. Result has 170 places, 161 transitions, 328 flow [2022-01-19 01:10:01,131 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=338, PETRI_DIFFERENCE_MINUEND_PLACES=169, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=166, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=166, PETRI_DIFFERENCE_SUBTRAHEND_STATES=2, PETRI_FLOW=328, PETRI_PLACES=170, PETRI_TRANSITIONS=161} [2022-01-19 01:10:01,135 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, -5 predicate places. [2022-01-19 01:10:01,135 INFO L470 AbstractCegarLoop]: Abstraction has has 170 places, 161 transitions, 328 flow [2022-01-19 01:10:01,136 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 171.0) internal successors, (342), 2 states have internal predecessors, (342), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:01,136 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:01,136 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:01,137 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 01:10:01,137 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:01,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:01,137 INFO L85 PathProgramCache]: Analyzing trace with hash 1309777273, now seen corresponding path program 1 times [2022-01-19 01:10:01,137 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:01,138 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [178322565] [2022-01-19 01:10:01,138 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:01,138 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:01,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:01,352 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:01,353 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:01,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [178322565] [2022-01-19 01:10:01,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [178322565] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:10:01,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:10:01,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 01:10:01,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789886462] [2022-01-19 01:10:01,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:10:01,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 01:10:01,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:01,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 01:10:01,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 01:10:01,358 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 143 out of 186 [2022-01-19 01:10:01,359 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 170 places, 161 transitions, 328 flow. Second operand has 7 states, 7 states have (on average 147.57142857142858) internal successors, (1033), 7 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:01,359 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:01,359 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 143 of 186 [2022-01-19 01:10:01,359 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:01,568 INFO L129 PetriNetUnfolder]: 275/841 cut-off events. [2022-01-19 01:10:01,568 INFO L130 PetriNetUnfolder]: For 25/25 co-relation queries the response was YES. [2022-01-19 01:10:01,570 INFO L84 FinitePrefix]: Finished finitePrefix Result has 1403 conditions, 841 events. 275/841 cut-off events. For 25/25 co-relation queries the response was YES. Maximal size of possible extension queue 44. Compared 4309 event pairs, 274 based on Foata normal form. 41/873 useless extension candidates. Maximal degree in co-relation 1400. Up to 382 conditions per place. [2022-01-19 01:10:01,573 INFO L132 encePairwiseOnDemand]: 176/186 looper letters, 34 selfloop transitions, 6 changer transitions 13/178 dead transitions. [2022-01-19 01:10:01,573 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 171 places, 178 transitions, 471 flow [2022-01-19 01:10:01,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-19 01:10:01,574 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2022-01-19 01:10:01,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 1057 transitions. [2022-01-19 01:10:01,577 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8118279569892473 [2022-01-19 01:10:01,578 INFO L72 ComplementDD]: Start complementDD. Operand 7 states and 1057 transitions. [2022-01-19 01:10:01,578 INFO L73 IsDeterministic]: Start isDeterministic. Operand 7 states and 1057 transitions. [2022-01-19 01:10:01,578 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:01,578 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 7 states and 1057 transitions. [2022-01-19 01:10:01,580 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 8 states, 7 states have (on average 151.0) internal successors, (1057), 7 states have internal predecessors, (1057), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:01,583 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 8 states, 8 states have (on average 186.0) internal successors, (1488), 8 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:01,584 INFO L81 ComplementDD]: Finished complementDD. Result has 8 states, 8 states have (on average 186.0) internal successors, (1488), 8 states have internal predecessors, (1488), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:01,584 INFO L186 Difference]: Start difference. First operand has 170 places, 161 transitions, 328 flow. Second operand 7 states and 1057 transitions. [2022-01-19 01:10:01,584 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 171 places, 178 transitions, 471 flow [2022-01-19 01:10:01,586 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 171 places, 178 transitions, 471 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 01:10:01,590 INFO L242 Difference]: Finished difference. Result has 173 places, 162 transitions, 354 flow [2022-01-19 01:10:01,590 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=328, PETRI_DIFFERENCE_MINUEND_PLACES=165, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=161, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=5, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=155, PETRI_DIFFERENCE_SUBTRAHEND_STATES=7, PETRI_FLOW=354, PETRI_PLACES=173, PETRI_TRANSITIONS=162} [2022-01-19 01:10:01,590 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, -2 predicate places. [2022-01-19 01:10:01,590 INFO L470 AbstractCegarLoop]: Abstraction has has 173 places, 162 transitions, 354 flow [2022-01-19 01:10:01,591 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 147.57142857142858) internal successors, (1033), 7 states have internal predecessors, (1033), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:01,591 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:01,592 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:01,592 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 01:10:01,592 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:01,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:01,592 INFO L85 PathProgramCache]: Analyzing trace with hash 710443097, now seen corresponding path program 1 times [2022-01-19 01:10:01,593 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:01,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1762854025] [2022-01-19 01:10:01,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:01,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:01,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:01,776 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 01:10:01,777 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:01,777 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1762854025] [2022-01-19 01:10:01,777 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1762854025] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:10:01,777 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:10:01,777 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 01:10:01,778 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [817273185] [2022-01-19 01:10:01,778 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:10:01,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 01:10:01,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:01,779 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 01:10:01,779 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-01-19 01:10:01,780 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 186 [2022-01-19 01:10:01,781 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 173 places, 162 transitions, 354 flow. Second operand has 7 states, 7 states have (on average 152.42857142857142) internal successors, (1067), 7 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:01,781 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:01,781 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 186 [2022-01-19 01:10:01,782 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:02,165 INFO L129 PetriNetUnfolder]: 1031/2322 cut-off events. [2022-01-19 01:10:02,166 INFO L130 PetriNetUnfolder]: For 213/213 co-relation queries the response was YES. [2022-01-19 01:10:02,171 INFO L84 FinitePrefix]: Finished finitePrefix Result has 4495 conditions, 2322 events. 1031/2322 cut-off events. For 213/213 co-relation queries the response was YES. Maximal size of possible extension queue 133. Compared 15973 event pairs, 364 based on Foata normal form. 25/2314 useless extension candidates. Maximal degree in co-relation 4489. Up to 511 conditions per place. [2022-01-19 01:10:02,180 INFO L132 encePairwiseOnDemand]: 176/186 looper letters, 91 selfloop transitions, 18 changer transitions 0/240 dead transitions. [2022-01-19 01:10:02,180 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 180 places, 240 transitions, 768 flow [2022-01-19 01:10:02,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 01:10:02,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 01:10:02,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1442 transitions. [2022-01-19 01:10:02,183 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8614097968936678 [2022-01-19 01:10:02,184 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1442 transitions. [2022-01-19 01:10:02,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1442 transitions. [2022-01-19 01:10:02,187 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:02,187 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1442 transitions. [2022-01-19 01:10:02,189 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 160.22222222222223) internal successors, (1442), 9 states have internal predecessors, (1442), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:02,191 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 186.0) internal successors, (1860), 10 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:02,192 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 186.0) internal successors, (1860), 10 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:02,192 INFO L186 Difference]: Start difference. First operand has 173 places, 162 transitions, 354 flow. Second operand 9 states and 1442 transitions. [2022-01-19 01:10:02,192 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 180 places, 240 transitions, 768 flow [2022-01-19 01:10:02,194 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 176 places, 240 transitions, 758 flow, removed 0 selfloop flow, removed 4 redundant places. [2022-01-19 01:10:02,198 INFO L242 Difference]: Finished difference. Result has 181 places, 176 transitions, 448 flow [2022-01-19 01:10:02,198 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=344, PETRI_DIFFERENCE_MINUEND_PLACES=168, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=162, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=153, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=448, PETRI_PLACES=181, PETRI_TRANSITIONS=176} [2022-01-19 01:10:02,199 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 6 predicate places. [2022-01-19 01:10:02,200 INFO L470 AbstractCegarLoop]: Abstraction has has 181 places, 176 transitions, 448 flow [2022-01-19 01:10:02,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 152.42857142857142) internal successors, (1067), 7 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:02,200 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:02,200 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:02,201 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 01:10:02,201 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:02,202 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:02,203 INFO L85 PathProgramCache]: Analyzing trace with hash 446910751, now seen corresponding path program 2 times [2022-01-19 01:10:02,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:02,203 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [930138038] [2022-01-19 01:10:02,203 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:02,203 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:02,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:02,845 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:02,845 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:02,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [930138038] [2022-01-19 01:10:02,845 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [930138038] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 01:10:02,845 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636697256] [2022-01-19 01:10:02,845 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 01:10:02,845 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:10:02,846 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 01:10:02,847 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 01:10:02,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-19 01:10:02,945 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 01:10:02,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 01:10:02,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 24 conjunts are in the unsatisfiable core [2022-01-19 01:10:02,952 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 01:10:03,528 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:10:03,529 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2022-01-19 01:10:03,561 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 01:10:03,562 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 01:10:03,562 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636697256] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:10:03,562 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 01:10:03,563 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [25] total 33 [2022-01-19 01:10:03,563 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753043973] [2022-01-19 01:10:03,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:10:03,563 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 01:10:03,563 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:03,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 01:10:03,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=92, Invalid=964, Unknown=0, NotChecked=0, Total=1056 [2022-01-19 01:10:03,566 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 186 [2022-01-19 01:10:03,567 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 181 places, 176 transitions, 448 flow. Second operand has 12 states, 12 states have (on average 120.83333333333333) internal successors, (1450), 12 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:03,567 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:03,567 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 186 [2022-01-19 01:10:03,567 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:04,370 INFO L129 PetriNetUnfolder]: 2890/6198 cut-off events. [2022-01-19 01:10:04,370 INFO L130 PetriNetUnfolder]: For 948/966 co-relation queries the response was YES. [2022-01-19 01:10:04,383 INFO L84 FinitePrefix]: Finished finitePrefix Result has 12483 conditions, 6198 events. 2890/6198 cut-off events. For 948/966 co-relation queries the response was YES. Maximal size of possible extension queue 350. Compared 51657 event pairs, 398 based on Foata normal form. 5/6068 useless extension candidates. Maximal degree in co-relation 12472. Up to 2776 conditions per place. [2022-01-19 01:10:04,403 INFO L132 encePairwiseOnDemand]: 159/186 looper letters, 103 selfloop transitions, 47 changer transitions 4/272 dead transitions. [2022-01-19 01:10:04,403 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 195 places, 272 transitions, 996 flow [2022-01-19 01:10:04,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-19 01:10:04,403 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2022-01-19 01:10:04,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 1895 transitions. [2022-01-19 01:10:04,406 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6792114695340502 [2022-01-19 01:10:04,406 INFO L72 ComplementDD]: Start complementDD. Operand 15 states and 1895 transitions. [2022-01-19 01:10:04,406 INFO L73 IsDeterministic]: Start isDeterministic. Operand 15 states and 1895 transitions. [2022-01-19 01:10:04,407 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:04,407 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 15 states and 1895 transitions. [2022-01-19 01:10:04,411 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 16 states, 15 states have (on average 126.33333333333333) internal successors, (1895), 15 states have internal predecessors, (1895), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:04,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 16 states, 16 states have (on average 186.0) internal successors, (2976), 16 states have internal predecessors, (2976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:04,414 INFO L81 ComplementDD]: Finished complementDD. Result has 16 states, 16 states have (on average 186.0) internal successors, (2976), 16 states have internal predecessors, (2976), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:04,414 INFO L186 Difference]: Start difference. First operand has 181 places, 176 transitions, 448 flow. Second operand 15 states and 1895 transitions. [2022-01-19 01:10:04,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 195 places, 272 transitions, 996 flow [2022-01-19 01:10:04,423 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 195 places, 272 transitions, 996 flow, removed 0 selfloop flow, removed 0 redundant places. [2022-01-19 01:10:04,426 INFO L242 Difference]: Finished difference. Result has 202 places, 221 transitions, 778 flow [2022-01-19 01:10:04,426 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=448, PETRI_DIFFERENCE_MINUEND_PLACES=181, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=176, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=152, PETRI_DIFFERENCE_SUBTRAHEND_STATES=15, PETRI_FLOW=778, PETRI_PLACES=202, PETRI_TRANSITIONS=221} [2022-01-19 01:10:04,427 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 27 predicate places. [2022-01-19 01:10:04,427 INFO L470 AbstractCegarLoop]: Abstraction has has 202 places, 221 transitions, 778 flow [2022-01-19 01:10:04,428 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.83333333333333) internal successors, (1450), 12 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:04,428 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:04,428 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:04,449 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-01-19 01:10:04,643 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:10:04,644 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:04,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:04,644 INFO L85 PathProgramCache]: Analyzing trace with hash 795173689, now seen corresponding path program 3 times [2022-01-19 01:10:04,644 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:04,644 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127968538] [2022-01-19 01:10:04,644 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:04,645 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:04,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 01:10:04,712 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:04,712 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127968538] [2022-01-19 01:10:04,712 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127968538] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:10:04,712 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:10:04,712 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 01:10:04,712 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [760138902] [2022-01-19 01:10:04,712 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:10:04,713 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 01:10:04,713 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:04,713 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 01:10:04,713 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 01:10:04,714 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 148 out of 186 [2022-01-19 01:10:04,715 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 202 places, 221 transitions, 778 flow. Second operand has 7 states, 7 states have (on average 152.42857142857142) internal successors, (1067), 7 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:04,715 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:04,715 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 148 of 186 [2022-01-19 01:10:04,715 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:05,357 INFO L129 PetriNetUnfolder]: 2499/5476 cut-off events. [2022-01-19 01:10:05,357 INFO L130 PetriNetUnfolder]: For 7497/7884 co-relation queries the response was YES. [2022-01-19 01:10:05,372 INFO L84 FinitePrefix]: Finished finitePrefix Result has 17081 conditions, 5476 events. 2499/5476 cut-off events. For 7497/7884 co-relation queries the response was YES. Maximal size of possible extension queue 318. Compared 44395 event pairs, 602 based on Foata normal form. 112/5390 useless extension candidates. Maximal degree in co-relation 17062. Up to 1650 conditions per place. [2022-01-19 01:10:05,397 INFO L132 encePairwiseOnDemand]: 176/186 looper letters, 186 selfloop transitions, 24 changer transitions 0/354 dead transitions. [2022-01-19 01:10:05,397 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 208 places, 354 transitions, 1884 flow [2022-01-19 01:10:05,398 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 01:10:05,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 01:10:05,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 1439 transitions. [2022-01-19 01:10:05,400 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8596176821983273 [2022-01-19 01:10:05,400 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 1439 transitions. [2022-01-19 01:10:05,400 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 1439 transitions. [2022-01-19 01:10:05,401 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:05,401 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 1439 transitions. [2022-01-19 01:10:05,403 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 159.88888888888889) internal successors, (1439), 9 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:05,404 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 186.0) internal successors, (1860), 10 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:05,405 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 186.0) internal successors, (1860), 10 states have internal predecessors, (1860), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:05,405 INFO L186 Difference]: Start difference. First operand has 202 places, 221 transitions, 778 flow. Second operand 9 states and 1439 transitions. [2022-01-19 01:10:05,405 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 208 places, 354 transitions, 1884 flow [2022-01-19 01:10:05,418 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 202 places, 354 transitions, 1858 flow, removed 9 selfloop flow, removed 6 redundant places. [2022-01-19 01:10:05,422 INFO L242 Difference]: Finished difference. Result has 205 places, 227 transitions, 873 flow [2022-01-19 01:10:05,423 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=756, PETRI_DIFFERENCE_MINUEND_PLACES=194, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=220, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=17, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=201, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=873, PETRI_PLACES=205, PETRI_TRANSITIONS=227} [2022-01-19 01:10:05,424 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 30 predicate places. [2022-01-19 01:10:05,424 INFO L470 AbstractCegarLoop]: Abstraction has has 205 places, 227 transitions, 873 flow [2022-01-19 01:10:05,426 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 152.42857142857142) internal successors, (1067), 7 states have internal predecessors, (1067), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:05,426 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:05,426 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:05,426 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 01:10:05,426 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:05,427 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:05,427 INFO L85 PathProgramCache]: Analyzing trace with hash 250132429, now seen corresponding path program 4 times [2022-01-19 01:10:05,427 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:05,427 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2145256268] [2022-01-19 01:10:05,427 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:05,427 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:05,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 01:10:05,514 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:05,514 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2145256268] [2022-01-19 01:10:05,514 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2145256268] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:10:05,514 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 01:10:05,515 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-19 01:10:05,515 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596834457] [2022-01-19 01:10:05,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:10:05,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-19 01:10:05,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:05,516 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-19 01:10:05,516 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-19 01:10:05,516 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 158 out of 186 [2022-01-19 01:10:05,517 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 205 places, 227 transitions, 873 flow. Second operand has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:05,517 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:05,517 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 158 of 186 [2022-01-19 01:10:05,517 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:05,935 INFO L129 PetriNetUnfolder]: 1872/4606 cut-off events. [2022-01-19 01:10:05,936 INFO L130 PetriNetUnfolder]: For 6280/6753 co-relation queries the response was YES. [2022-01-19 01:10:05,955 INFO L84 FinitePrefix]: Finished finitePrefix Result has 14241 conditions, 4606 events. 1872/4606 cut-off events. For 6280/6753 co-relation queries the response was YES. Maximal size of possible extension queue 280. Compared 38766 event pairs, 815 based on Foata normal form. 35/4439 useless extension candidates. Maximal degree in co-relation 14220. Up to 2459 conditions per place. [2022-01-19 01:10:05,980 INFO L132 encePairwiseOnDemand]: 183/186 looper letters, 73 selfloop transitions, 2 changer transitions 0/249 dead transitions. [2022-01-19 01:10:05,980 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 207 places, 249 transitions, 1145 flow [2022-01-19 01:10:05,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-19 01:10:05,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2022-01-19 01:10:05,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 504 transitions. [2022-01-19 01:10:05,982 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.9032258064516129 [2022-01-19 01:10:05,982 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 504 transitions. [2022-01-19 01:10:05,982 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 504 transitions. [2022-01-19 01:10:05,982 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:05,982 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 504 transitions. [2022-01-19 01:10:05,983 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 168.0) internal successors, (504), 3 states have internal predecessors, (504), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:05,984 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:05,984 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 186.0) internal successors, (744), 4 states have internal predecessors, (744), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:05,984 INFO L186 Difference]: Start difference. First operand has 205 places, 227 transitions, 873 flow. Second operand 3 states and 504 transitions. [2022-01-19 01:10:05,984 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 207 places, 249 transitions, 1145 flow [2022-01-19 01:10:06,006 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 203 places, 249 transitions, 1109 flow, removed 5 selfloop flow, removed 4 redundant places. [2022-01-19 01:10:06,008 INFO L242 Difference]: Finished difference. Result has 204 places, 227 transitions, 845 flow [2022-01-19 01:10:06,008 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=837, PETRI_DIFFERENCE_MINUEND_PLACES=201, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=225, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=845, PETRI_PLACES=204, PETRI_TRANSITIONS=227} [2022-01-19 01:10:06,010 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 29 predicate places. [2022-01-19 01:10:06,010 INFO L470 AbstractCegarLoop]: Abstraction has has 204 places, 227 transitions, 845 flow [2022-01-19 01:10:06,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 165.0) internal successors, (495), 3 states have internal predecessors, (495), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:06,010 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:06,010 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:06,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 01:10:06,011 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:06,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:06,011 INFO L85 PathProgramCache]: Analyzing trace with hash -2092178769, now seen corresponding path program 5 times [2022-01-19 01:10:06,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:06,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1467188362] [2022-01-19 01:10:06,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:06,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:06,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:06,650 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:06,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:06,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1467188362] [2022-01-19 01:10:06,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1467188362] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 01:10:06,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1353577936] [2022-01-19 01:10:06,651 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-19 01:10:06,651 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:10:06,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 01:10:06,652 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 01:10:06,683 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-19 01:10:06,740 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-19 01:10:06,740 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 01:10:06,742 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 52 conjunts are in the unsatisfiable core [2022-01-19 01:10:06,745 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 01:10:08,165 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-01-19 01:10:08,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:08,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 01:10:08,442 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:10:08,442 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 36 [2022-01-19 01:10:09,484 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:09,484 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1353577936] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 01:10:09,484 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 01:10:09,484 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29, 29, 23] total 64 [2022-01-19 01:10:09,485 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [192569251] [2022-01-19 01:10:09,485 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 01:10:09,485 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 64 states [2022-01-19 01:10:09,485 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:09,486 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 64 interpolants. [2022-01-19 01:10:09,487 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=542, Invalid=3490, Unknown=0, NotChecked=0, Total=4032 [2022-01-19 01:10:09,491 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 186 [2022-01-19 01:10:09,496 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 204 places, 227 transitions, 845 flow. Second operand has 64 states, 64 states have (on average 101.828125) internal successors, (6517), 64 states have internal predecessors, (6517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:09,496 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:09,496 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 186 [2022-01-19 01:10:09,496 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:14,187 INFO L129 PetriNetUnfolder]: 6150/12750 cut-off events. [2022-01-19 01:10:14,187 INFO L130 PetriNetUnfolder]: For 19029/19934 co-relation queries the response was YES. [2022-01-19 01:10:14,234 INFO L84 FinitePrefix]: Finished finitePrefix Result has 42560 conditions, 12750 events. 6150/12750 cut-off events. For 19029/19934 co-relation queries the response was YES. Maximal size of possible extension queue 681. Compared 115257 event pairs, 702 based on Foata normal form. 99/12647 useless extension candidates. Maximal degree in co-relation 42540. Up to 4292 conditions per place. [2022-01-19 01:10:14,287 INFO L132 encePairwiseOnDemand]: 134/186 looper letters, 337 selfloop transitions, 155 changer transitions 41/639 dead transitions. [2022-01-19 01:10:14,287 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 266 places, 639 transitions, 4198 flow [2022-01-19 01:10:14,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-01-19 01:10:14,288 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 63 states. [2022-01-19 01:10:14,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 63 states to 63 states and 6623 transitions. [2022-01-19 01:10:14,299 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5651988393923878 [2022-01-19 01:10:14,299 INFO L72 ComplementDD]: Start complementDD. Operand 63 states and 6623 transitions. [2022-01-19 01:10:14,299 INFO L73 IsDeterministic]: Start isDeterministic. Operand 63 states and 6623 transitions. [2022-01-19 01:10:14,302 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:14,302 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 63 states and 6623 transitions. [2022-01-19 01:10:14,313 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 64 states, 63 states have (on average 105.12698412698413) internal successors, (6623), 63 states have internal predecessors, (6623), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:14,327 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 64 states, 64 states have (on average 186.0) internal successors, (11904), 64 states have internal predecessors, (11904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:14,329 INFO L81 ComplementDD]: Finished complementDD. Result has 64 states, 64 states have (on average 186.0) internal successors, (11904), 64 states have internal predecessors, (11904), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:14,330 INFO L186 Difference]: Start difference. First operand has 204 places, 227 transitions, 845 flow. Second operand 63 states and 6623 transitions. [2022-01-19 01:10:14,330 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 266 places, 639 transitions, 4198 flow [2022-01-19 01:10:14,374 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 264 places, 639 transitions, 4194 flow, removed 0 selfloop flow, removed 2 redundant places. [2022-01-19 01:10:14,380 INFO L242 Difference]: Finished difference. Result has 300 places, 383 transitions, 2373 flow [2022-01-19 01:10:14,380 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=841, PETRI_DIFFERENCE_MINUEND_PLACES=202, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=227, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=31, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=156, PETRI_DIFFERENCE_SUBTRAHEND_STATES=63, PETRI_FLOW=2373, PETRI_PLACES=300, PETRI_TRANSITIONS=383} [2022-01-19 01:10:14,381 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 125 predicate places. [2022-01-19 01:10:14,381 INFO L470 AbstractCegarLoop]: Abstraction has has 300 places, 383 transitions, 2373 flow [2022-01-19 01:10:14,392 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 64 states, 64 states have (on average 101.828125) internal successors, (6517), 64 states have internal predecessors, (6517), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:14,392 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:14,392 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:14,408 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-01-19 01:10:14,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-01-19 01:10:14,609 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:14,610 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:14,610 INFO L85 PathProgramCache]: Analyzing trace with hash -886467297, now seen corresponding path program 6 times [2022-01-19 01:10:14,610 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:14,610 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1050448044] [2022-01-19 01:10:14,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:14,610 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:14,914 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:14,915 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:14,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1050448044] [2022-01-19 01:10:14,915 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1050448044] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 01:10:14,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1301215070] [2022-01-19 01:10:14,915 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-01-19 01:10:14,915 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:10:14,915 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 01:10:14,916 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 01:10:14,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-19 01:10:15,016 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 1 check-sat command(s) [2022-01-19 01:10:15,016 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 01:10:15,017 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 24 conjunts are in the unsatisfiable core [2022-01-19 01:10:15,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 01:10:15,364 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:10:15,364 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2022-01-19 01:10:15,395 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 01:10:15,396 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 01:10:15,397 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1301215070] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:10:15,397 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 01:10:15,397 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [21] total 28 [2022-01-19 01:10:15,398 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [810611971] [2022-01-19 01:10:15,398 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:10:15,399 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-19 01:10:15,399 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:15,400 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-19 01:10:15,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=67, Invalid=689, Unknown=0, NotChecked=0, Total=756 [2022-01-19 01:10:15,403 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 116 out of 186 [2022-01-19 01:10:15,404 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 300 places, 383 transitions, 2373 flow. Second operand has 12 states, 12 states have (on average 120.83333333333333) internal successors, (1450), 12 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:15,405 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:15,405 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 116 of 186 [2022-01-19 01:10:15,405 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:17,881 INFO L129 PetriNetUnfolder]: 6972/14542 cut-off events. [2022-01-19 01:10:17,882 INFO L130 PetriNetUnfolder]: For 60447/62929 co-relation queries the response was YES. [2022-01-19 01:10:17,966 INFO L84 FinitePrefix]: Finished finitePrefix Result has 67347 conditions, 14542 events. 6972/14542 cut-off events. For 60447/62929 co-relation queries the response was YES. Maximal size of possible extension queue 749. Compared 134953 event pairs, 825 based on Foata normal form. 360/14635 useless extension candidates. Maximal degree in co-relation 67291. Up to 6383 conditions per place. [2022-01-19 01:10:18,038 INFO L132 encePairwiseOnDemand]: 162/186 looper letters, 282 selfloop transitions, 130 changer transitions 9/554 dead transitions. [2022-01-19 01:10:18,039 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 308 places, 554 transitions, 4781 flow [2022-01-19 01:10:18,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-01-19 01:10:18,039 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2022-01-19 01:10:18,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 2016 transitions. [2022-01-19 01:10:18,041 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6774193548387096 [2022-01-19 01:10:18,042 INFO L72 ComplementDD]: Start complementDD. Operand 16 states and 2016 transitions. [2022-01-19 01:10:18,042 INFO L73 IsDeterministic]: Start isDeterministic. Operand 16 states and 2016 transitions. [2022-01-19 01:10:18,042 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:18,042 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 16 states and 2016 transitions. [2022-01-19 01:10:18,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 17 states, 16 states have (on average 126.0) internal successors, (2016), 16 states have internal predecessors, (2016), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:18,047 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 17 states, 17 states have (on average 186.0) internal successors, (3162), 17 states have internal predecessors, (3162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:18,047 INFO L81 ComplementDD]: Finished complementDD. Result has 17 states, 17 states have (on average 186.0) internal successors, (3162), 17 states have internal predecessors, (3162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:18,047 INFO L186 Difference]: Start difference. First operand has 300 places, 383 transitions, 2373 flow. Second operand 16 states and 2016 transitions. [2022-01-19 01:10:18,047 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 308 places, 554 transitions, 4781 flow [2022-01-19 01:10:18,292 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 288 places, 554 transitions, 4575 flow, removed 89 selfloop flow, removed 20 redundant places. [2022-01-19 01:10:18,297 INFO L242 Difference]: Finished difference. Result has 295 places, 446 transitions, 3263 flow [2022-01-19 01:10:18,298 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=2241, PETRI_DIFFERENCE_MINUEND_PLACES=273, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=383, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=72, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=281, PETRI_DIFFERENCE_SUBTRAHEND_STATES=16, PETRI_FLOW=3263, PETRI_PLACES=295, PETRI_TRANSITIONS=446} [2022-01-19 01:10:18,298 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 120 predicate places. [2022-01-19 01:10:18,298 INFO L470 AbstractCegarLoop]: Abstraction has has 295 places, 446 transitions, 3263 flow [2022-01-19 01:10:18,299 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 120.83333333333333) internal successors, (1450), 12 states have internal predecessors, (1450), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:18,299 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:18,299 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:18,317 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-19 01:10:18,515 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:10:18,515 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:18,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:18,516 INFO L85 PathProgramCache]: Analyzing trace with hash 2144886995, now seen corresponding path program 7 times [2022-01-19 01:10:18,516 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:18,516 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378843954] [2022-01-19 01:10:18,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:18,516 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:19,130 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:19,130 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:19,130 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378843954] [2022-01-19 01:10:19,131 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378843954] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 01:10:19,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049867441] [2022-01-19 01:10:19,131 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-01-19 01:10:19,131 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:10:19,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 01:10:19,132 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 01:10:19,143 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-19 01:10:19,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:19,223 INFO L263 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 46 conjunts are in the unsatisfiable core [2022-01-19 01:10:19,226 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 01:10:20,257 INFO L353 Elim1Store]: treesize reduction 7, result has 30.0 percent of original size [2022-01-19 01:10:20,257 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 34 treesize of output 18 [2022-01-19 01:10:20,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:20,392 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 01:10:20,658 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:10:20,658 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 64 treesize of output 36 [2022-01-19 01:10:21,355 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:21,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049867441] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-19 01:10:21,356 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-19 01:10:21,356 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 25, 19] total 53 [2022-01-19 01:10:21,356 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771197116] [2022-01-19 01:10:21,356 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-19 01:10:21,357 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 53 states [2022-01-19 01:10:21,357 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:21,357 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 53 interpolants. [2022-01-19 01:10:21,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=405, Invalid=2351, Unknown=0, NotChecked=0, Total=2756 [2022-01-19 01:10:21,360 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 99 out of 186 [2022-01-19 01:10:21,363 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 295 places, 446 transitions, 3263 flow. Second operand has 53 states, 53 states have (on average 102.16981132075472) internal successors, (5415), 53 states have internal predecessors, (5415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:21,363 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:21,363 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 99 of 186 [2022-01-19 01:10:21,363 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:29,050 INFO L129 PetriNetUnfolder]: 12558/27648 cut-off events. [2022-01-19 01:10:29,050 INFO L130 PetriNetUnfolder]: For 166717/169207 co-relation queries the response was YES. [2022-01-19 01:10:29,351 INFO L84 FinitePrefix]: Finished finitePrefix Result has 143315 conditions, 27648 events. 12558/27648 cut-off events. For 166717/169207 co-relation queries the response was YES. Maximal size of possible extension queue 1631. Compared 299147 event pairs, 834 based on Foata normal form. 460/27761 useless extension candidates. Maximal degree in co-relation 143258. Up to 8897 conditions per place. [2022-01-19 01:10:29,469 INFO L132 encePairwiseOnDemand]: 138/186 looper letters, 789 selfloop transitions, 535 changer transitions 45/1475 dead transitions. [2022-01-19 01:10:29,469 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 366 places, 1475 transitions, 16394 flow [2022-01-19 01:10:29,469 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 74 states. [2022-01-19 01:10:29,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2022-01-19 01:10:29,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 7915 transitions. [2022-01-19 01:10:29,483 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5750508573089218 [2022-01-19 01:10:29,483 INFO L72 ComplementDD]: Start complementDD. Operand 74 states and 7915 transitions. [2022-01-19 01:10:29,483 INFO L73 IsDeterministic]: Start isDeterministic. Operand 74 states and 7915 transitions. [2022-01-19 01:10:29,487 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:29,488 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 74 states and 7915 transitions. [2022-01-19 01:10:29,616 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 75 states, 74 states have (on average 106.95945945945945) internal successors, (7915), 74 states have internal predecessors, (7915), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:29,637 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 75 states, 75 states have (on average 186.0) internal successors, (13950), 75 states have internal predecessors, (13950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:29,638 INFO L81 ComplementDD]: Finished complementDD. Result has 75 states, 75 states have (on average 186.0) internal successors, (13950), 75 states have internal predecessors, (13950), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:29,639 INFO L186 Difference]: Start difference. First operand has 295 places, 446 transitions, 3263 flow. Second operand 74 states and 7915 transitions. [2022-01-19 01:10:29,639 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 366 places, 1475 transitions, 16394 flow [2022-01-19 01:10:30,300 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 359 places, 1475 transitions, 16074 flow, removed 145 selfloop flow, removed 7 redundant places. [2022-01-19 01:10:30,312 INFO L242 Difference]: Finished difference. Result has 399 places, 945 transitions, 10409 flow [2022-01-19 01:10:30,313 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=3139, PETRI_DIFFERENCE_MINUEND_PLACES=286, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=446, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=128, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=241, PETRI_DIFFERENCE_SUBTRAHEND_STATES=74, PETRI_FLOW=10409, PETRI_PLACES=399, PETRI_TRANSITIONS=945} [2022-01-19 01:10:30,313 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 224 predicate places. [2022-01-19 01:10:30,313 INFO L470 AbstractCegarLoop]: Abstraction has has 399 places, 945 transitions, 10409 flow [2022-01-19 01:10:30,315 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 53 states, 53 states have (on average 102.16981132075472) internal successors, (5415), 53 states have internal predecessors, (5415), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:30,315 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:30,315 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:30,335 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-19 01:10:30,524 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:10:30,524 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:30,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:30,524 INFO L85 PathProgramCache]: Analyzing trace with hash 872739589, now seen corresponding path program 8 times [2022-01-19 01:10:30,525 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:30,525 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1364074675] [2022-01-19 01:10:30,525 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:30,525 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:30,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:30,998 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:30,998 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:30,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1364074675] [2022-01-19 01:10:30,998 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1364074675] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 01:10:30,998 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [403502116] [2022-01-19 01:10:30,998 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-19 01:10:30,998 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:10:30,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 01:10:30,999 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 01:10:31,000 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-19 01:10:31,078 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-01-19 01:10:31,078 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 01:10:31,079 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 30 conjunts are in the unsatisfiable core [2022-01-19 01:10:31,081 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 01:10:31,108 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 01:10:31,129 INFO L353 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-01-19 01:10:31,129 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2022-01-19 01:10:31,378 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-19 01:10:31,404 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 01:10:31,581 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:10:31,581 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2022-01-19 01:10:31,613 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 01:10:31,613 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 01:10:31,613 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [403502116] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:10:31,613 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 01:10:31,614 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [26] total 37 [2022-01-19 01:10:31,614 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1448857450] [2022-01-19 01:10:31,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:10:31,614 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-19 01:10:31,614 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:31,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-19 01:10:31,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=1225, Unknown=0, NotChecked=0, Total=1332 [2022-01-19 01:10:31,616 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 103 out of 186 [2022-01-19 01:10:31,617 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 399 places, 945 transitions, 10409 flow. Second operand has 15 states, 15 states have (on average 107.4) internal successors, (1611), 15 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:31,617 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:31,617 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 103 of 186 [2022-01-19 01:10:31,617 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:39,922 INFO L129 PetriNetUnfolder]: 13537/30386 cut-off events. [2022-01-19 01:10:39,922 INFO L130 PetriNetUnfolder]: For 474923/479675 co-relation queries the response was YES. [2022-01-19 01:10:40,389 INFO L84 FinitePrefix]: Finished finitePrefix Result has 210759 conditions, 30386 events. 13537/30386 cut-off events. For 474923/479675 co-relation queries the response was YES. Maximal size of possible extension queue 1755. Compared 337927 event pairs, 1385 based on Foata normal form. 802/30716 useless extension candidates. Maximal degree in co-relation 210663. Up to 17131 conditions per place. [2022-01-19 01:10:40,540 INFO L132 encePairwiseOnDemand]: 158/186 looper letters, 855 selfloop transitions, 224 changer transitions 34/1238 dead transitions. [2022-01-19 01:10:40,540 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 419 places, 1238 transitions, 17043 flow [2022-01-19 01:10:40,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-19 01:10:40,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2022-01-19 01:10:40,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 2785 transitions. [2022-01-19 01:10:40,543 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.5989247311827957 [2022-01-19 01:10:40,543 INFO L72 ComplementDD]: Start complementDD. Operand 25 states and 2785 transitions. [2022-01-19 01:10:40,543 INFO L73 IsDeterministic]: Start isDeterministic. Operand 25 states and 2785 transitions. [2022-01-19 01:10:40,544 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:40,544 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 25 states and 2785 transitions. [2022-01-19 01:10:40,547 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 26 states, 25 states have (on average 111.4) internal successors, (2785), 25 states have internal predecessors, (2785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:40,551 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 26 states, 26 states have (on average 186.0) internal successors, (4836), 26 states have internal predecessors, (4836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:40,552 INFO L81 ComplementDD]: Finished complementDD. Result has 26 states, 26 states have (on average 186.0) internal successors, (4836), 26 states have internal predecessors, (4836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:40,552 INFO L186 Difference]: Start difference. First operand has 399 places, 945 transitions, 10409 flow. Second operand 25 states and 2785 transitions. [2022-01-19 01:10:40,552 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 419 places, 1238 transitions, 17043 flow [2022-01-19 01:10:44,293 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 392 places, 1238 transitions, 16362 flow, removed 317 selfloop flow, removed 27 redundant places. [2022-01-19 01:10:44,309 INFO L242 Difference]: Finished difference. Result has 405 places, 1030 transitions, 11853 flow [2022-01-19 01:10:44,311 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=9834, PETRI_DIFFERENCE_MINUEND_PLACES=368, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=945, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=142, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=755, PETRI_DIFFERENCE_SUBTRAHEND_STATES=25, PETRI_FLOW=11853, PETRI_PLACES=405, PETRI_TRANSITIONS=1030} [2022-01-19 01:10:44,312 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 230 predicate places. [2022-01-19 01:10:44,312 INFO L470 AbstractCegarLoop]: Abstraction has has 405 places, 1030 transitions, 11853 flow [2022-01-19 01:10:44,312 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 107.4) internal successors, (1611), 15 states have internal predecessors, (1611), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:44,312 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:10:44,313 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:10:44,328 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-19 01:10:44,513 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-01-19 01:10:44,513 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:10:44,514 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:10:44,514 INFO L85 PathProgramCache]: Analyzing trace with hash 422036635, now seen corresponding path program 9 times [2022-01-19 01:10:44,514 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:10:44,514 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [338892159] [2022-01-19 01:10:44,514 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:10:44,514 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:10:44,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:10:45,052 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:10:45,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:10:45,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [338892159] [2022-01-19 01:10:45,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [338892159] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 01:10:45,052 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1201350200] [2022-01-19 01:10:45,053 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-19 01:10:45,053 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:10:45,053 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 01:10:45,054 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 01:10:45,054 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-19 01:10:45,134 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2022-01-19 01:10:45,135 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 01:10:45,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 370 conjuncts, 31 conjunts are in the unsatisfiable core [2022-01-19 01:10:45,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 01:10:45,557 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:10:45,557 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 39 treesize of output 26 [2022-01-19 01:10:45,589 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-19 01:10:45,589 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-19 01:10:45,590 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1201350200] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 01:10:45,590 INFO L186 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-01-19 01:10:45,590 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [26] total 34 [2022-01-19 01:10:45,590 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480746726] [2022-01-19 01:10:45,590 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 01:10:45,590 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-01-19 01:10:45,590 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 01:10:45,591 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-01-19 01:10:45,591 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=99, Invalid=1023, Unknown=0, NotChecked=0, Total=1122 [2022-01-19 01:10:45,594 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 186 [2022-01-19 01:10:45,595 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 405 places, 1030 transitions, 11853 flow. Second operand has 13 states, 13 states have (on average 115.84615384615384) internal successors, (1506), 13 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:45,595 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 01:10:45,595 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 186 [2022-01-19 01:10:45,595 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 01:10:57,058 INFO L129 PetriNetUnfolder]: 20072/40911 cut-off events. [2022-01-19 01:10:57,058 INFO L130 PetriNetUnfolder]: For 735583/739467 co-relation queries the response was YES. [2022-01-19 01:10:57,956 INFO L84 FinitePrefix]: Finished finitePrefix Result has 297411 conditions, 40911 events. 20072/40911 cut-off events. For 735583/739467 co-relation queries the response was YES. Maximal size of possible extension queue 2145. Compared 433888 event pairs, 2600 based on Foata normal form. 1033/41674 useless extension candidates. Maximal degree in co-relation 297305. Up to 28177 conditions per place. [2022-01-19 01:10:58,173 INFO L132 encePairwiseOnDemand]: 157/186 looper letters, 947 selfloop transitions, 288 changer transitions 18/1371 dead transitions. [2022-01-19 01:10:58,173 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 421 places, 1371 transitions, 19780 flow [2022-01-19 01:10:58,173 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-01-19 01:10:58,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2022-01-19 01:10:58,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 2526 transitions. [2022-01-19 01:10:58,176 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.6466973886328725 [2022-01-19 01:10:58,176 INFO L72 ComplementDD]: Start complementDD. Operand 21 states and 2526 transitions. [2022-01-19 01:10:58,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 2526 transitions. [2022-01-19 01:10:58,177 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 01:10:58,177 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 21 states and 2526 transitions. [2022-01-19 01:10:58,179 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 22 states, 21 states have (on average 120.28571428571429) internal successors, (2526), 21 states have internal predecessors, (2526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:58,182 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 22 states, 22 states have (on average 186.0) internal successors, (4092), 22 states have internal predecessors, (4092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:58,182 INFO L81 ComplementDD]: Finished complementDD. Result has 22 states, 22 states have (on average 186.0) internal successors, (4092), 22 states have internal predecessors, (4092), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:10:58,182 INFO L186 Difference]: Start difference. First operand has 405 places, 1030 transitions, 11853 flow. Second operand 21 states and 2526 transitions. [2022-01-19 01:10:58,182 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 421 places, 1371 transitions, 19780 flow [2022-01-19 01:11:06,324 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 409 places, 1371 transitions, 18906 flow, removed 361 selfloop flow, removed 12 redundant places. [2022-01-19 01:11:06,342 INFO L242 Difference]: Finished difference. Result has 422 places, 1249 transitions, 15951 flow [2022-01-19 01:11:06,343 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=186, PETRI_DIFFERENCE_MINUEND_FLOW=11262, PETRI_DIFFERENCE_MINUEND_PLACES=389, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=1030, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=103, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=828, PETRI_DIFFERENCE_SUBTRAHEND_STATES=21, PETRI_FLOW=15951, PETRI_PLACES=422, PETRI_TRANSITIONS=1249} [2022-01-19 01:11:06,343 INFO L334 CegarLoopForPetriNet]: 175 programPoint places, 247 predicate places. [2022-01-19 01:11:06,343 INFO L470 AbstractCegarLoop]: Abstraction has has 422 places, 1249 transitions, 15951 flow [2022-01-19 01:11:06,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 115.84615384615384) internal successors, (1506), 13 states have internal predecessors, (1506), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-19 01:11:06,344 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 01:11:06,344 INFO L254 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-19 01:11:06,361 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-01-19 01:11:06,559 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:11:06,560 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-01-19 01:11:06,560 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 01:11:06,560 INFO L85 PathProgramCache]: Analyzing trace with hash -943930637, now seen corresponding path program 10 times [2022-01-19 01:11:06,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 01:11:06,560 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2140749674] [2022-01-19 01:11:06,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 01:11:06,560 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 01:11:06,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 01:11:07,158 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:11:07,158 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 01:11:07,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2140749674] [2022-01-19 01:11:07,158 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2140749674] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-19 01:11:07,158 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [962025803] [2022-01-19 01:11:07,159 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-19 01:11:07,159 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:11:07,159 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 01:11:07,160 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-19 01:11:07,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-01-19 01:11:07,236 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-19 01:11:07,236 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-19 01:11:07,238 INFO L263 TraceCheckSpWp]: Trace formula consists of 331 conjuncts, 57 conjunts are in the unsatisfiable core [2022-01-19 01:11:07,241 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-19 01:11:07,755 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2022-01-19 01:11:08,413 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 01:11:08,496 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 01:11:08,609 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2022-01-19 01:11:08,870 INFO L353 Elim1Store]: treesize reduction 9, result has 25.0 percent of original size [2022-01-19 01:11:08,870 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 20 [2022-01-19 01:11:08,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-19 01:11:08,941 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-19 01:11:12,754 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:11:12,754 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 190 treesize of output 130 [2022-01-19 01:11:12,773 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:11:12,774 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 5816 treesize of output 5452 [2022-01-19 01:11:12,837 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:11:12,838 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 6440 treesize of output 4738 [2022-01-19 01:11:12,906 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:11:12,907 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 3820 treesize of output 2982 [2022-01-19 01:11:12,974 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-19 01:11:12,975 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 3848 treesize of output 3442 [2022-01-19 01:11:13,022 INFO L884 QuantifierPusher]: Run 10 iterations of DualJunctionQuantifierElimination maybe there is a nontermination bug. Received shutdown request... [2022-01-19 01:24:07,637 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-01-19 01:24:07,639 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 01:24:07,657 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-01-19 01:24:07,682 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 01:24:07,682 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-19 01:24:07,839 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-19 01:24:07,840 WARN L594 AbstractCegarLoop]: Verification canceled: while CegarLoopForPetriNet was analyzing trace of length 162 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 26ms.. [2022-01-19 01:24:07,841 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 01:24:07,841 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 01:24:07,841 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-19 01:24:07,843 INFO L732 BasicCegarLoop]: Path program histogram: [10, 1, 1] [2022-01-19 01:24:07,844 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 01:24:07,844 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 01:24:07,846 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 01:24:07 BasicIcfg [2022-01-19 01:24:07,846 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 01:24:07,846 INFO L158 Benchmark]: Toolchain (without parser) took 848121.44ms. Allocated memory was 419.4MB in the beginning and 8.5GB in the end (delta: 8.1GB). Free memory was 365.7MB in the beginning and 1.9GB in the end (delta: -1.5GB). Peak memory consumption was 7.4GB. Max. memory is 16.0GB. [2022-01-19 01:24:07,846 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 419.4MB. Free memory is still 383.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 01:24:07,847 INFO L158 Benchmark]: CACSL2BoogieTranslator took 284.91ms. Allocated memory is still 419.4MB. Free memory was 365.5MB in the beginning and 391.3MB in the end (delta: -25.7MB). Peak memory consumption was 16.9MB. Max. memory is 16.0GB. [2022-01-19 01:24:07,847 INFO L158 Benchmark]: Boogie Procedure Inliner took 40.46ms. Allocated memory is still 419.4MB. Free memory was 391.3MB in the beginning and 388.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. [2022-01-19 01:24:07,847 INFO L158 Benchmark]: Boogie Preprocessor took 22.19ms. Allocated memory is still 419.4MB. Free memory was 388.1MB in the beginning and 387.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 01:24:07,847 INFO L158 Benchmark]: RCFGBuilder took 373.48ms. Allocated memory is still 419.4MB. Free memory was 387.1MB in the beginning and 363.0MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2022-01-19 01:24:07,847 INFO L158 Benchmark]: TraceAbstraction took 847392.32ms. Allocated memory was 419.4MB in the beginning and 8.5GB in the end (delta: 8.1GB). Free memory was 361.9MB in the beginning and 1.9GB in the end (delta: -1.5GB). Peak memory consumption was 7.4GB. Max. memory is 16.0GB. [2022-01-19 01:24:07,848 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 419.4MB. Free memory is still 383.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 284.91ms. Allocated memory is still 419.4MB. Free memory was 365.5MB in the beginning and 391.3MB in the end (delta: -25.7MB). Peak memory consumption was 16.9MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 40.46ms. Allocated memory is still 419.4MB. Free memory was 391.3MB in the beginning and 388.1MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.19ms. Allocated memory is still 419.4MB. Free memory was 388.1MB in the beginning and 387.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 373.48ms. Allocated memory is still 419.4MB. Free memory was 387.1MB in the beginning and 363.0MB in the end (delta: 24.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 847392.32ms. Allocated memory was 419.4MB in the beginning and 8.5GB in the end (delta: 8.1GB). Free memory was 361.9MB in the beginning and 1.9GB in the end (delta: -1.5GB). Peak memory consumption was 7.4GB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 161]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while CegarLoopForPetriNet was analyzing trace of length 162 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 26ms.. - TimeoutResultAtElement [Line: 155]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 162 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 26ms.. - TimeoutResultAtElement [Line: 154]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 162 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 26ms.. - TimeoutResultAtElement [Line: 153]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while CegarLoopForPetriNet was analyzing trace of length 162 with TraceHistMax 1,while TraceCheckSpWp was constructing backward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 4 for 26ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 215 locations, 4 error locations. Started 1 CEGAR loops. EmptinessCheckTime: 0.0s, RemoveRedundantFlowTime: 0.0s, RemoveRedundantFlowUnfoldingTime: 0.0s, BackfoldingTime: 0.0s, BackfoldingUnfoldingTime: 0.0s, FlowIncreaseByBackfolding: 0, BasicCegarLoop: OverallTime: 847.3s, OverallIterations: 12, TraceHistogramMax: 1, PathProgramHistogramMax: 10, EmptinessCheckTime: 0.0s, AutomataDifference: 53.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3534 SdHoareTripleChecker+Valid, 3.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 3534 mSDsluCounter, 3254 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 2743 IncrementalHoareTripleChecker+Unchecked, 6662 mSDsCounter, 406 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 7981 IncrementalHoareTripleChecker+Invalid, 11130 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 406 mSolverCounterUnsat, 312 mSDtfsCounter, 7981 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 1666 GetRequests, 1211 SyntacticMatches, 29 SemanticMatches, 426 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9607 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15951occurred in iteration=11, InterpolantAutomatonStates: 244, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 10.1s InterpolantComputationTime, 2723 NumberOfCodeBlocks, 2695 NumberOfCodeBlocksAsserted, 18 NumberOfCheckSat, 3026 ConstructedInterpolants, 55 QuantifiedInterpolants, 19464 SizeOfPredicates, 120 NumberOfNonLiveVariables, 2246 ConjunctsInSsa, 207 ConjunctsInUnsatCore, 19 InterpolantComputations, 9 PerfectInterpolantSequences, 7/17 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown