/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-After.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bf34d27 [2022-01-19 11:19:08,910 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-19 11:19:08,912 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-19 11:19:08,944 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-19 11:19:08,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-19 11:19:08,956 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-19 11:19:08,957 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-19 11:19:08,958 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-19 11:19:08,964 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-19 11:19:08,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-19 11:19:08,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-19 11:19:08,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-19 11:19:08,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-19 11:19:08,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-19 11:19:08,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-19 11:19:08,974 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-19 11:19:08,975 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-19 11:19:08,975 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-19 11:19:08,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-19 11:19:08,982 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-19 11:19:08,983 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-19 11:19:08,984 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-19 11:19:08,985 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-19 11:19:08,986 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-19 11:19:08,990 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-19 11:19:08,993 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-01-19 11:19:08,993 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-01-19 11:19:08,994 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-01-19 11:19:08,995 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-01-19 11:19:08,996 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-01-19 11:19:08,996 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-01-19 11:19:08,996 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-01-19 11:19:08,996 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-01-19 11:19:08,996 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-19 11:19:08,997 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-19 11:19:08,997 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-19 11:19:08,998 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-After.epf [2022-01-19 11:19:09,027 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-19 11:19:09,027 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-19 11:19:09,028 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-19 11:19:09,028 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-19 11:19:09,028 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-19 11:19:09,028 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-19 11:19:09,028 INFO L138 SettingsManager]: * Use SBE=true [2022-01-19 11:19:09,029 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-19 11:19:09,029 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-19 11:19:09,030 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-19 11:19:09,030 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-19 11:19:09,030 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-19 11:19:09,030 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-19 11:19:09,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:19:09,030 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-19 11:19:09,030 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-19 11:19:09,030 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-19 11:19:09,030 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-19 11:19:09,030 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-19 11:19:09,030 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-19 11:19:09,030 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-19 11:19:09,031 INFO L138 SettingsManager]: * When to check the insufficient erros location relative to the other error locations=AFTER [2022-01-19 11:19:09,031 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-19 11:19:09,232 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-19 11:19:09,253 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-19 11:19:09,255 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-19 11:19:09,256 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-19 11:19:09,259 INFO L275 PluginConnector]: CDTParser initialized [2022-01-19 11:19:09,260 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-19 11:19:09,316 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bcb9db20/43a5a87f518244b388fad6aa666acce5/FLAG2901b16d0 [2022-01-19 11:19:09,719 INFO L306 CDTParser]: Found 1 translation units. [2022-01-19 11:19:09,719 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-19 11:19:09,741 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bcb9db20/43a5a87f518244b388fad6aa666acce5/FLAG2901b16d0 [2022-01-19 11:19:10,094 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5bcb9db20/43a5a87f518244b388fad6aa666acce5 [2022-01-19 11:19:10,096 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-19 11:19:10,097 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-19 11:19:10,098 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-19 11:19:10,098 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-19 11:19:10,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-19 11:19:10,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76058871 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10, skipping insertion in model container [2022-01-19 11:19:10,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,108 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-19 11:19:10,138 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-19 11:19:10,270 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-01-19 11:19:10,382 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:19:10,387 INFO L203 MainTranslator]: Completed pre-run [2022-01-19 11:19:10,395 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i[1017,1030] [2022-01-19 11:19:10,417 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-19 11:19:10,439 INFO L208 MainTranslator]: Completed translation [2022-01-19 11:19:10,439 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10 WrapperNode [2022-01-19 11:19:10,439 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-19 11:19:10,440 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-19 11:19:10,440 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-19 11:19:10,440 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-19 11:19:10,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,454 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,468 INFO L137 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 72 [2022-01-19 11:19:10,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-19 11:19:10,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-19 11:19:10,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-19 11:19:10,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-19 11:19:10,474 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,476 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,476 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,480 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,481 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,482 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,484 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-19 11:19:10,485 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-19 11:19:10,485 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-19 11:19:10,485 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-19 11:19:10,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (1/1) ... [2022-01-19 11:19:10,491 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-19 11:19:10,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-19 11:19:10,512 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 11:19:10,535 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 11:19:10,549 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-19 11:19:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-01-19 11:19:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-19 11:19:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-01-19 11:19:10,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-01-19 11:19:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2022-01-19 11:19:10,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2022-01-19 11:19:10,551 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2022-01-19 11:19:10,551 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2022-01-19 11:19:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2022-01-19 11:19:10,552 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2022-01-19 11:19:10,552 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-19 11:19:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-01-19 11:19:10,553 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-19 11:19:10,553 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-19 11:19:10,554 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 11:19:10,654 INFO L234 CfgBuilder]: Building ICFG [2022-01-19 11:19:10,655 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-19 11:19:10,801 INFO L275 CfgBuilder]: Performing block encoding [2022-01-19 11:19:10,805 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-19 11:19:10,806 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-19 11:19:10,807 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:19:10 BoogieIcfgContainer [2022-01-19 11:19:10,807 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-19 11:19:10,808 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-19 11:19:10,808 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-19 11:19:10,811 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-19 11:19:10,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.01 11:19:10" (1/3) ... [2022-01-19 11:19:10,811 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552885b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:19:10, skipping insertion in model container [2022-01-19 11:19:10,811 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.01 11:19:10" (2/3) ... [2022-01-19 11:19:10,812 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@552885b4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.01 11:19:10, skipping insertion in model container [2022-01-19 11:19:10,812 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.01 11:19:10" (3/3) ... [2022-01-19 11:19:10,812 INFO L111 eAbstractionObserver]: Analyzing ICFG safe007_pso.oepc_pso.opt_tso.oepc_tso.opt-thin001_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2022-01-19 11:19:10,816 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-19 11:19:10,816 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-19 11:19:10,816 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-19 11:19:10,845 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,846 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,846 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,846 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,846 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,846 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,846 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,846 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,847 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,847 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,847 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,847 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,848 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,848 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,848 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,848 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,848 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,848 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,848 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,848 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,849 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,849 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,849 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,849 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,849 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,849 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,849 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,850 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,850 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,850 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,850 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,850 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,850 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,850 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,851 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,851 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,853 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,853 WARN L322 ript$VariableManager]: TermVariabe P1Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,853 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,853 WARN L322 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,855 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,855 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,855 WARN L322 ript$VariableManager]: TermVariabe P2Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,855 WARN L322 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,856 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,856 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,856 WARN L322 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,856 WARN L322 ript$VariableManager]: TermVariabe P0Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-19 11:19:10,857 INFO L148 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-01-19 11:19:10,895 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-19 11:19:10,900 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 11:19:10,900 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-19 11:19:10,908 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 101 places, 93 transitions, 201 flow [2022-01-19 11:19:10,945 INFO L129 PetriNetUnfolder]: 2/90 cut-off events. [2022-01-19 11:19:10,945 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:19:10,951 INFO L84 FinitePrefix]: Finished finitePrefix Result has 100 conditions, 90 events. 2/90 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/87 useless extension candidates. Maximal degree in co-relation 68. Up to 2 conditions per place. [2022-01-19 11:19:10,951 INFO L82 GeneralOperation]: Start removeDead. Operand has 101 places, 93 transitions, 201 flow [2022-01-19 11:19:10,954 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 85 places, 76 transitions, 161 flow [2022-01-19 11:19:10,973 INFO L129 PetriNetUnfolder]: 1/75 cut-off events. [2022-01-19 11:19:10,973 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2022-01-19 11:19:10,974 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:19:10,975 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] [2022-01-19 11:19:10,975 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 11:19:10,978 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:19:10,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1681563862, now seen corresponding path program 1 times [2022-01-19 11:19:10,984 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:19:10,984 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1425908317] [2022-01-19 11:19:10,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:19:10,985 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:19:11,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:19:11,333 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 11:19:11,333 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:19:11,333 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1425908317] [2022-01-19 11:19:11,334 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1425908317] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:19:11,334 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:19:11,334 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-19 11:19:11,335 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [223506650] [2022-01-19 11:19:11,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:19:11,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-19 11:19:11,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:19:11,369 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-19 11:19:11,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-01-19 11:19:11,374 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 78 out of 93 [2022-01-19 11:19:11,377 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 85 places, 76 transitions, 161 flow. Second operand has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 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 11:19:11,377 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:19:11,377 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 78 of 93 [2022-01-19 11:19:11,378 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:19:11,497 INFO L129 PetriNetUnfolder]: 4/97 cut-off events. [2022-01-19 11:19:11,497 INFO L130 PetriNetUnfolder]: For 4/4 co-relation queries the response was YES. [2022-01-19 11:19:11,498 INFO L84 FinitePrefix]: Finished finitePrefix Result has 134 conditions, 97 events. 4/97 cut-off events. For 4/4 co-relation queries the response was YES. Maximal size of possible extension queue 5. Compared 114 event pairs, 0 based on Foata normal form. 4/100 useless extension candidates. Maximal degree in co-relation 98. Up to 9 conditions per place. [2022-01-19 11:19:11,499 INFO L132 encePairwiseOnDemand]: 86/93 looper letters, 10 selfloop transitions, 2 changer transitions 11/86 dead transitions. [2022-01-19 11:19:11,499 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 93 places, 86 transitions, 228 flow [2022-01-19 11:19:11,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-19 11:19:11,502 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2022-01-19 11:19:11,509 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 728 transitions. [2022-01-19 11:19:11,512 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8697729988052568 [2022-01-19 11:19:11,512 INFO L72 ComplementDD]: Start complementDD. Operand 9 states and 728 transitions. [2022-01-19 11:19:11,512 INFO L73 IsDeterministic]: Start isDeterministic. Operand 9 states and 728 transitions. [2022-01-19 11:19:11,515 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:19:11,528 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 9 states and 728 transitions. [2022-01-19 11:19:11,533 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 10 states, 9 states have (on average 80.88888888888889) internal successors, (728), 9 states have internal predecessors, (728), 0 states have call successors, (0), 0 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 11:19:11,544 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 0 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 11:19:11,545 INFO L81 ComplementDD]: Finished complementDD. Result has 10 states, 10 states have (on average 93.0) internal successors, (930), 10 states have internal predecessors, (930), 0 states have call successors, (0), 0 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 11:19:11,547 INFO L186 Difference]: Start difference. First operand has 85 places, 76 transitions, 161 flow. Second operand 9 states and 728 transitions. [2022-01-19 11:19:11,547 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 93 places, 86 transitions, 228 flow [2022-01-19 11:19:11,553 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 90 places, 86 transitions, 224 flow, removed 0 selfloop flow, removed 3 redundant places. [2022-01-19 11:19:11,558 INFO L242 Difference]: Finished difference. Result has 97 places, 74 transitions, 174 flow [2022-01-19 11:19:11,560 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=75, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=73, PETRI_DIFFERENCE_SUBTRAHEND_STATES=9, PETRI_FLOW=174, PETRI_PLACES=97, PETRI_TRANSITIONS=74} [2022-01-19 11:19:11,564 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 12 predicate places. [2022-01-19 11:19:11,564 INFO L470 AbstractCegarLoop]: Abstraction has has 97 places, 74 transitions, 174 flow [2022-01-19 11:19:11,565 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 79.66666666666667) internal successors, (478), 6 states have internal predecessors, (478), 0 states have call successors, (0), 0 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 11:19:11,565 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:19:11,565 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] [2022-01-19 11:19:11,565 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-19 11:19:11,566 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 11:19:11,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:19:11,566 INFO L85 PathProgramCache]: Analyzing trace with hash 793373035, now seen corresponding path program 1 times [2022-01-19 11:19:11,567 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:19:11,567 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607837228] [2022-01-19 11:19:11,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:19:11,567 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:19:11,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:19:11,706 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 11:19:11,707 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:19:11,707 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1607837228] [2022-01-19 11:19:11,707 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1607837228] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:19:11,707 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:19:11,707 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 11:19:11,707 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910091608] [2022-01-19 11:19:11,707 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:19:11,708 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 11:19:11,709 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:19:11,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 11:19:11,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 11:19:11,710 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 76 out of 93 [2022-01-19 11:19:11,711 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 97 places, 74 transitions, 174 flow. Second operand has 7 states, 7 states have (on average 77.71428571428571) internal successors, (544), 7 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 11:19:11,711 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:19:11,711 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 76 of 93 [2022-01-19 11:19:11,711 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:19:11,900 INFO L129 PetriNetUnfolder]: 9/124 cut-off events. [2022-01-19 11:19:11,901 INFO L130 PetriNetUnfolder]: For 25/32 co-relation queries the response was YES. [2022-01-19 11:19:11,901 INFO L84 FinitePrefix]: Finished finitePrefix Result has 213 conditions, 124 events. 9/124 cut-off events. For 25/32 co-relation queries the response was YES. Maximal size of possible extension queue 8. Compared 284 event pairs, 1 based on Foata normal form. 2/124 useless extension candidates. Maximal degree in co-relation 198. Up to 10 conditions per place. [2022-01-19 11:19:11,902 INFO L132 encePairwiseOnDemand]: 85/93 looper letters, 12 selfloop transitions, 4 changer transitions 12/89 dead transitions. [2022-01-19 11:19:11,902 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 99 places, 89 transitions, 289 flow [2022-01-19 11:19:11,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 11:19:11,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 11:19:11,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 790 transitions. [2022-01-19 11:19:11,905 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8494623655913979 [2022-01-19 11:19:11,905 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 790 transitions. [2022-01-19 11:19:11,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 790 transitions. [2022-01-19 11:19:11,906 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:19:11,906 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 790 transitions. [2022-01-19 11:19:11,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 79.0) internal successors, (790), 10 states have internal predecessors, (790), 0 states have call successors, (0), 0 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 11:19:11,909 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 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 11:19:11,910 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 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 11:19:11,910 INFO L186 Difference]: Start difference. First operand has 97 places, 74 transitions, 174 flow. Second operand 10 states and 790 transitions. [2022-01-19 11:19:11,910 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 99 places, 89 transitions, 289 flow [2022-01-19 11:19:11,911 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 91 places, 89 transitions, 255 flow, removed 14 selfloop flow, removed 8 redundant places. [2022-01-19 11:19:11,912 INFO L242 Difference]: Finished difference. Result has 99 places, 74 transitions, 188 flow [2022-01-19 11:19:11,913 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=158, PETRI_DIFFERENCE_MINUEND_PLACES=82, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=70, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=188, PETRI_PLACES=99, PETRI_TRANSITIONS=74} [2022-01-19 11:19:11,913 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 14 predicate places. [2022-01-19 11:19:11,913 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 74 transitions, 188 flow [2022-01-19 11:19:11,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 77.71428571428571) internal successors, (544), 7 states have internal predecessors, (544), 0 states have call successors, (0), 0 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 11:19:11,914 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:19:11,914 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] [2022-01-19 11:19:11,914 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-19 11:19:11,914 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 11:19:11,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:19:11,915 INFO L85 PathProgramCache]: Analyzing trace with hash -1104625406, now seen corresponding path program 1 times [2022-01-19 11:19:11,915 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:19:11,915 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [104823204] [2022-01-19 11:19:11,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:19:11,915 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:19:11,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:19:12,053 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 11:19:12,055 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:19:12,055 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [104823204] [2022-01-19 11:19:12,055 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [104823204] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:19:12,055 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:19:12,055 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 11:19:12,056 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553461423] [2022-01-19 11:19:12,056 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:19:12,057 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 11:19:12,057 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:19:12,057 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 11:19:12,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2022-01-19 11:19:12,059 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 74 out of 93 [2022-01-19 11:19:12,060 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 74 transitions, 188 flow. Second operand has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 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 11:19:12,060 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:19:12,060 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 74 of 93 [2022-01-19 11:19:12,060 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:19:12,172 INFO L129 PetriNetUnfolder]: 8/120 cut-off events. [2022-01-19 11:19:12,173 INFO L130 PetriNetUnfolder]: For 37/43 co-relation queries the response was YES. [2022-01-19 11:19:12,173 INFO L84 FinitePrefix]: Finished finitePrefix Result has 218 conditions, 120 events. 8/120 cut-off events. For 37/43 co-relation queries the response was YES. Maximal size of possible extension queue 6. Compared 240 event pairs, 3 based on Foata normal form. 2/119 useless extension candidates. Maximal degree in co-relation 201. Up to 13 conditions per place. [2022-01-19 11:19:12,174 INFO L132 encePairwiseOnDemand]: 86/93 looper letters, 14 selfloop transitions, 3 changer transitions 10/86 dead transitions. [2022-01-19 11:19:12,174 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 102 places, 86 transitions, 292 flow [2022-01-19 11:19:12,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 11:19:12,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 11:19:12,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 769 transitions. [2022-01-19 11:19:12,176 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8268817204301075 [2022-01-19 11:19:12,176 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 769 transitions. [2022-01-19 11:19:12,176 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 769 transitions. [2022-01-19 11:19:12,176 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:19:12,176 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 769 transitions. [2022-01-19 11:19:12,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 76.9) internal successors, (769), 10 states have internal predecessors, (769), 0 states have call successors, (0), 0 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 11:19:12,179 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 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 11:19:12,179 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 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 11:19:12,179 INFO L186 Difference]: Start difference. First operand has 99 places, 74 transitions, 188 flow. Second operand 10 states and 769 transitions. [2022-01-19 11:19:12,180 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 102 places, 86 transitions, 292 flow [2022-01-19 11:19:12,181 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 92 places, 86 transitions, 244 flow, removed 18 selfloop flow, removed 10 redundant places. [2022-01-19 11:19:12,182 INFO L242 Difference]: Finished difference. Result has 99 places, 74 transitions, 184 flow [2022-01-19 11:19:12,182 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=162, PETRI_DIFFERENCE_MINUEND_PLACES=83, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=71, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=184, PETRI_PLACES=99, PETRI_TRANSITIONS=74} [2022-01-19 11:19:12,183 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 14 predicate places. [2022-01-19 11:19:12,183 INFO L470 AbstractCegarLoop]: Abstraction has has 99 places, 74 transitions, 184 flow [2022-01-19 11:19:12,183 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 76.0) internal successors, (532), 7 states have internal predecessors, (532), 0 states have call successors, (0), 0 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 11:19:12,183 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:19:12,183 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] [2022-01-19 11:19:12,184 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-19 11:19:12,184 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 11:19:12,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:19:12,184 INFO L85 PathProgramCache]: Analyzing trace with hash -924770709, now seen corresponding path program 1 times [2022-01-19 11:19:12,184 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:19:12,184 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1966248861] [2022-01-19 11:19:12,184 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:19:12,185 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:19:12,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:19:12,286 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 11:19:12,286 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:19:12,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1966248861] [2022-01-19 11:19:12,287 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1966248861] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:19:12,287 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:19:12,287 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-19 11:19:12,287 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439836940] [2022-01-19 11:19:12,287 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:19:12,288 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-19 11:19:12,288 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:19:12,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-19 11:19:12,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2022-01-19 11:19:12,292 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 93 [2022-01-19 11:19:12,293 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 99 places, 74 transitions, 184 flow. Second operand has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 0 states have call successors, (0), 0 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 11:19:12,293 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:19:12,293 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 93 [2022-01-19 11:19:12,293 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:19:12,437 INFO L129 PetriNetUnfolder]: 15/162 cut-off events. [2022-01-19 11:19:12,437 INFO L130 PetriNetUnfolder]: For 44/58 co-relation queries the response was YES. [2022-01-19 11:19:12,439 INFO L84 FinitePrefix]: Finished finitePrefix Result has 287 conditions, 162 events. 15/162 cut-off events. For 44/58 co-relation queries the response was YES. Maximal size of possible extension queue 9. Compared 427 event pairs, 1 based on Foata normal form. 2/163 useless extension candidates. Maximal degree in co-relation 264. Up to 16 conditions per place. [2022-01-19 11:19:12,440 INFO L132 encePairwiseOnDemand]: 83/93 looper letters, 22 selfloop transitions, 6 changer transitions 12/97 dead transitions. [2022-01-19 11:19:12,440 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 103 places, 97 transitions, 364 flow [2022-01-19 11:19:12,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 11:19:12,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 11:19:12,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 834 transitions. [2022-01-19 11:19:12,442 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8152492668621701 [2022-01-19 11:19:12,442 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 834 transitions. [2022-01-19 11:19:12,442 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 834 transitions. [2022-01-19 11:19:12,443 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:19:12,443 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 834 transitions. [2022-01-19 11:19:12,444 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 75.81818181818181) internal successors, (834), 11 states have internal predecessors, (834), 0 states have call successors, (0), 0 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 11:19:12,446 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 11:19:12,446 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 11:19:12,446 INFO L186 Difference]: Start difference. First operand has 99 places, 74 transitions, 184 flow. Second operand 11 states and 834 transitions. [2022-01-19 11:19:12,446 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 103 places, 97 transitions, 364 flow [2022-01-19 11:19:12,449 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 94 places, 97 transitions, 314 flow, removed 20 selfloop flow, removed 9 redundant places. [2022-01-19 11:19:12,452 INFO L242 Difference]: Finished difference. Result has 103 places, 76 transitions, 215 flow [2022-01-19 11:19:12,452 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=166, PETRI_DIFFERENCE_MINUEND_PLACES=84, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=74, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=68, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=215, PETRI_PLACES=103, PETRI_TRANSITIONS=76} [2022-01-19 11:19:12,453 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 18 predicate places. [2022-01-19 11:19:12,453 INFO L470 AbstractCegarLoop]: Abstraction has has 103 places, 76 transitions, 215 flow [2022-01-19 11:19:12,454 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 74.28571428571429) internal successors, (520), 7 states have internal predecessors, (520), 0 states have call successors, (0), 0 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 11:19:12,454 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:19:12,454 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] [2022-01-19 11:19:12,454 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-19 11:19:12,454 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 11:19:12,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:19:12,455 INFO L85 PathProgramCache]: Analyzing trace with hash -406387113, now seen corresponding path program 2 times [2022-01-19 11:19:12,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:19:12,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989693863] [2022-01-19 11:19:12,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:19:12,457 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:19:12,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:19:12,570 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 11:19:12,571 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:19:12,571 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989693863] [2022-01-19 11:19:12,571 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989693863] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:19:12,571 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:19:12,571 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 11:19:12,572 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [572489060] [2022-01-19 11:19:12,572 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:19:12,572 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 11:19:12,572 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:19:12,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 11:19:12,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-19 11:19:12,574 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 93 [2022-01-19 11:19:12,575 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 103 places, 76 transitions, 215 flow. Second operand has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 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 11:19:12,575 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:19:12,575 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 93 [2022-01-19 11:19:12,575 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:19:12,696 INFO L129 PetriNetUnfolder]: 11/148 cut-off events. [2022-01-19 11:19:12,697 INFO L130 PetriNetUnfolder]: For 102/181 co-relation queries the response was YES. [2022-01-19 11:19:12,698 INFO L84 FinitePrefix]: Finished finitePrefix Result has 302 conditions, 148 events. 11/148 cut-off events. For 102/181 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 428 event pairs, 4 based on Foata normal form. 2/147 useless extension candidates. Maximal degree in co-relation 283. Up to 19 conditions per place. [2022-01-19 11:19:12,698 INFO L132 encePairwiseOnDemand]: 85/93 looper letters, 13 selfloop transitions, 4 changer transitions 17/91 dead transitions. [2022-01-19 11:19:12,698 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 106 places, 91 transitions, 363 flow [2022-01-19 11:19:12,699 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-19 11:19:12,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2022-01-19 11:19:12,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 753 transitions. [2022-01-19 11:19:12,701 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.8096774193548387 [2022-01-19 11:19:12,701 INFO L72 ComplementDD]: Start complementDD. Operand 10 states and 753 transitions. [2022-01-19 11:19:12,701 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 753 transitions. [2022-01-19 11:19:12,702 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:19:12,702 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 10 states and 753 transitions. [2022-01-19 11:19:12,703 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 11 states, 10 states have (on average 75.3) internal successors, (753), 10 states have internal predecessors, (753), 0 states have call successors, (0), 0 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 11:19:12,704 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 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 11:19:12,705 INFO L81 ComplementDD]: Finished complementDD. Result has 11 states, 11 states have (on average 93.0) internal successors, (1023), 11 states have internal predecessors, (1023), 0 states have call successors, (0), 0 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 11:19:12,705 INFO L186 Difference]: Start difference. First operand has 103 places, 76 transitions, 215 flow. Second operand 10 states and 753 transitions. [2022-01-19 11:19:12,705 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 106 places, 91 transitions, 363 flow [2022-01-19 11:19:12,708 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 97 places, 91 transitions, 323 flow, removed 17 selfloop flow, removed 9 redundant places. [2022-01-19 11:19:12,709 INFO L242 Difference]: Finished difference. Result has 105 places, 74 transitions, 210 flow [2022-01-19 11:19:12,709 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=195, PETRI_DIFFERENCE_MINUEND_PLACES=88, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=76, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=10, PETRI_FLOW=210, PETRI_PLACES=105, PETRI_TRANSITIONS=74} [2022-01-19 11:19:12,712 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 20 predicate places. [2022-01-19 11:19:12,712 INFO L470 AbstractCegarLoop]: Abstraction has has 105 places, 74 transitions, 210 flow [2022-01-19 11:19:12,712 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 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 11:19:12,712 INFO L246 CegarLoopForPetriNet]: Found error trace [2022-01-19 11:19:12,713 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] [2022-01-19 11:19:12,713 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-19 11:19:12,713 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 11:19:12,713 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-19 11:19:12,714 INFO L85 PathProgramCache]: Analyzing trace with hash -583365957, now seen corresponding path program 1 times [2022-01-19 11:19:12,714 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-19 11:19:12,714 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [6811729] [2022-01-19 11:19:12,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-19 11:19:12,714 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-19 11:19:12,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-19 11:19:12,852 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 11:19:12,852 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-19 11:19:12,852 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [6811729] [2022-01-19 11:19:12,852 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [6811729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-19 11:19:12,852 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-19 11:19:12,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2022-01-19 11:19:12,853 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334935645] [2022-01-19 11:19:12,853 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-19 11:19:12,854 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-01-19 11:19:12,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-19 11:19:12,855 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-01-19 11:19:12,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2022-01-19 11:19:12,856 INFO L499 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 93 [2022-01-19 11:19:12,857 INFO L92 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 105 places, 74 transitions, 210 flow. Second operand has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 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 11:19:12,857 INFO L101 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2022-01-19 11:19:12,857 INFO L102 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 93 [2022-01-19 11:19:12,857 INFO L74 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2022-01-19 11:19:12,963 INFO L129 PetriNetUnfolder]: 4/81 cut-off events. [2022-01-19 11:19:12,964 INFO L130 PetriNetUnfolder]: For 60/67 co-relation queries the response was YES. [2022-01-19 11:19:12,964 INFO L84 FinitePrefix]: Finished finitePrefix Result has 165 conditions, 81 events. 4/81 cut-off events. For 60/67 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 62 event pairs, 0 based on Foata normal form. 2/83 useless extension candidates. Maximal degree in co-relation 150. Up to 7 conditions per place. [2022-01-19 11:19:12,964 INFO L132 encePairwiseOnDemand]: 85/93 looper letters, 0 selfloop transitions, 0 changer transitions 79/79 dead transitions. [2022-01-19 11:19:12,964 INFO L138 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 107 places, 79 transitions, 286 flow [2022-01-19 11:19:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-19 11:19:12,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2022-01-19 11:19:12,966 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 817 transitions. [2022-01-19 11:19:12,967 INFO L544 CegarLoopForPetriNet]: DFA transition density 0.7986314760508308 [2022-01-19 11:19:12,967 INFO L72 ComplementDD]: Start complementDD. Operand 11 states and 817 transitions. [2022-01-19 11:19:12,967 INFO L73 IsDeterministic]: Start isDeterministic. Operand 11 states and 817 transitions. [2022-01-19 11:19:12,967 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-01-19 11:19:12,967 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 11 states and 817 transitions. [2022-01-19 11:19:12,969 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 12 states, 11 states have (on average 74.27272727272727) internal successors, (817), 11 states have internal predecessors, (817), 0 states have call successors, (0), 0 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 11:19:12,970 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 11:19:12,971 INFO L81 ComplementDD]: Finished complementDD. Result has 12 states, 12 states have (on average 93.0) internal successors, (1116), 12 states have internal predecessors, (1116), 0 states have call successors, (0), 0 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 11:19:12,971 INFO L186 Difference]: Start difference. First operand has 105 places, 74 transitions, 210 flow. Second operand 11 states and 817 transitions. [2022-01-19 11:19:12,971 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 107 places, 79 transitions, 286 flow [2022-01-19 11:19:12,972 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 95 places, 79 transitions, 232 flow, removed 16 selfloop flow, removed 12 redundant places. [2022-01-19 11:19:12,973 INFO L242 Difference]: Finished difference. Result has 95 places, 0 transitions, 0 flow [2022-01-19 11:19:12,973 INFO L317 CegarLoopForPetriNet]: {PETRI_ALPHABET=93, PETRI_DIFFERENCE_MINUEND_FLOW=168, PETRI_DIFFERENCE_MINUEND_PLACES=85, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=72, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=72, PETRI_DIFFERENCE_SUBTRAHEND_STATES=11, PETRI_FLOW=0, PETRI_PLACES=95, PETRI_TRANSITIONS=0} [2022-01-19 11:19:12,973 INFO L334 CegarLoopForPetriNet]: 85 programPoint places, 10 predicate places. [2022-01-19 11:19:12,973 INFO L470 AbstractCegarLoop]: Abstraction has has 95 places, 0 transitions, 0 flow [2022-01-19 11:19:12,974 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 74.0) internal successors, (592), 8 states have internal predecessors, (592), 0 states have call successors, (0), 0 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 11:19:12,976 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2022-01-19 11:19:12,976 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-01-19 11:19:12,976 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-01-19 11:19:12,977 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-01-19 11:19:12,977 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-19 11:19:12,980 INFO L732 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1] [2022-01-19 11:19:12,982 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-19 11:19:12,982 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-01-19 11:19:12,985 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.01 11:19:12 BasicIcfg [2022-01-19 11:19:12,985 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-19 11:19:12,985 INFO L158 Benchmark]: Toolchain (without parser) took 2888.08ms. Allocated memory was 371.2MB in the beginning and 488.6MB in the end (delta: 117.4MB). Free memory was 316.8MB in the beginning and 222.8MB in the end (delta: 93.9MB). Peak memory consumption was 209.7MB. Max. memory is 16.0GB. [2022-01-19 11:19:12,985 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 371.2MB. Free memory is still 334.6MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 11:19:12,986 INFO L158 Benchmark]: CACSL2BoogieTranslator took 341.28ms. Allocated memory was 371.2MB in the beginning and 488.6MB in the end (delta: 117.4MB). Free memory was 316.5MB in the beginning and 452.3MB in the end (delta: -135.8MB). Peak memory consumption was 9.0MB. Max. memory is 16.0GB. [2022-01-19 11:19:12,986 INFO L158 Benchmark]: Boogie Procedure Inliner took 28.25ms. Allocated memory is still 488.6MB. Free memory was 452.3MB in the beginning and 450.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-19 11:19:12,986 INFO L158 Benchmark]: Boogie Preprocessor took 15.52ms. Allocated memory is still 488.6MB. Free memory was 450.4MB in the beginning and 449.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-19 11:19:12,987 INFO L158 Benchmark]: RCFGBuilder took 322.50ms. Allocated memory is still 488.6MB. Free memory was 449.3MB in the beginning and 433.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. [2022-01-19 11:19:12,987 INFO L158 Benchmark]: TraceAbstraction took 2176.57ms. Allocated memory is still 488.6MB. Free memory was 432.6MB in the beginning and 222.8MB in the end (delta: 209.7MB). Peak memory consumption was 209.7MB. Max. memory is 16.0GB. [2022-01-19 11:19:12,988 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 371.2MB. Free memory is still 334.6MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 341.28ms. Allocated memory was 371.2MB in the beginning and 488.6MB in the end (delta: 117.4MB). Free memory was 316.5MB in the beginning and 452.3MB in the end (delta: -135.8MB). Peak memory consumption was 9.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 28.25ms. Allocated memory is still 488.6MB. Free memory was 452.3MB in the beginning and 450.4MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 15.52ms. Allocated memory is still 488.6MB. Free memory was 450.4MB in the beginning and 449.3MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 322.50ms. Allocated memory is still 488.6MB. Free memory was 449.3MB in the beginning and 433.6MB in the end (delta: 15.7MB). Peak memory consumption was 16.8MB. Max. memory is 16.0GB. * TraceAbstraction took 2176.57ms. Allocated memory is still 488.6MB. Free memory was 432.6MB in the beginning and 222.8MB in the end (delta: 209.7MB). Peak memory consumption was 209.7MB. 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 - PositiveResult [Line: 18]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 7 procedures, 116 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: 2.1s, OverallIterations: 6, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.1s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 188 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 188 mSDsluCounter, 283 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 277 mSDsCounter, 18 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 242 IncrementalHoareTripleChecker+Invalid, 260 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 18 mSolverCounterUnsat, 71 mSDtfsCounter, 242 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=215occurred in iteration=4, InterpolantAutomatonStates: 61, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 365 NumberOfCodeBlocks, 365 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 359 ConstructedInterpolants, 0 QuantifiedInterpolants, 1213 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-01-19 11:19:13,019 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...