/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-VariableLbe.epf --traceabstraction.when.to.check.the.insufficient.erros.location.relative.to.the.other.error.locations AFTER -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:03:37,927 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:03:37,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:03:37,948 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-28 07:03:37,948 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-28 07:03:37,951 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-28 07:03:37,954 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-28 07:03:37,956 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-28 07:03:37,959 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-28 07:03:37,962 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-28 07:03:37,963 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-28 07:03:37,964 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-28 07:03:37,965 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:03:37,968 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:03:37,969 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:03:37,970 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:03:37,970 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:03:37,971 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:03:37,972 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:03:37,973 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:03:37,974 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:03:37,975 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:03:37,975 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:03:37,976 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:03:37,982 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 07:03:37,986 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:03:37,986 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:03:37,986 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:03:37,989 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-VariableLbe.epf [2023-01-28 07:03:38,013 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:03:38,013 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:03:38,014 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:03:38,014 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:03:38,014 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:03:38,014 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:03:38,014 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:03:38,014 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:03:38,014 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:03:38,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:03:38,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:03:38,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:03:38,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:03:38,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:03:38,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:03:38,016 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:03:38,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:03:38,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:03:38,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:03:38,016 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:03:38,016 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:03:38,016 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:03:38,195 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:03:38,219 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:03:38,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:03:38,222 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:03:38,223 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:03:38,223 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-01-28 07:03:39,402 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:03:39,603 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:03:39,604 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-01-28 07:03:39,614 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e226d3fe4/3df10691b32942afa45caaa43614ebe8/FLAG61b2f6b60 [2023-01-28 07:03:39,624 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e226d3fe4/3df10691b32942afa45caaa43614ebe8 [2023-01-28 07:03:39,626 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:03:39,627 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:03:39,629 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:03:39,629 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:03:39,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:03:39,631 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:03:39" (1/1) ... [2023-01-28 07:03:39,632 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f35bdb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:39, skipping insertion in model container [2023-01-28 07:03:39,633 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:03:39" (1/1) ... [2023-01-28 07:03:39,637 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:03:39,678 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:03:39,810 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-01-28 07:03:39,948 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:03:39,956 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:03:39,967 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread-wmm/safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i[975,988] [2023-01-28 07:03:39,996 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:03:40,022 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:03:40,023 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:03:40,027 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:03:40,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40 WrapperNode [2023-01-28 07:03:40,028 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:03:40,029 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:03:40,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:03:40,029 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:03:40,033 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,056 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,073 INFO L138 Inliner]: procedures = 176, calls = 53, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 71 [2023-01-28 07:03:40,074 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:03:40,074 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:03:40,074 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:03:40,074 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:03:40,080 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,081 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,089 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,100 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,101 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,102 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,103 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:03:40,104 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:03:40,104 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:03:40,104 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:03:40,105 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (1/1) ... [2023-01-28 07:03:40,113 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:03:40,121 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:03:40,132 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) [2023-01-28 07:03:40,150 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 [2023-01-28 07:03:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:03:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 07:03:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:03:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:03:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:03:40,160 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2023-01-28 07:03:40,160 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2023-01-28 07:03:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2023-01-28 07:03:40,161 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2023-01-28 07:03:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2023-01-28 07:03:40,161 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2023-01-28 07:03:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:03:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 07:03:40,161 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:03:40,161 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:03:40,162 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-28 07:03:40,244 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:03:40,245 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:03:40,360 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:03:40,365 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:03:40,365 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:03:40,366 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:03:40 BoogieIcfgContainer [2023-01-28 07:03:40,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:03:40,368 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:03:40,368 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:03:40,370 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:03:40,370 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:03:39" (1/3) ... [2023-01-28 07:03:40,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59db1583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:03:40, skipping insertion in model container [2023-01-28 07:03:40,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:03:40" (2/3) ... [2023-01-28 07:03:40,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59db1583 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:03:40, skipping insertion in model container [2023-01-28 07:03:40,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:03:40" (3/3) ... [2023-01-28 07:03:40,372 INFO L112 eAbstractionObserver]: Analyzing ICFG safe028_pso.oepc_pso.opt_tso.oepc_tso.opt.i [2023-01-28 07:03:40,383 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:03:40,383 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-28 07:03:40,383 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:03:40,425 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2023-01-28 07:03:40,458 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 92 places, 84 transitions, 183 flow [2023-01-28 07:03:40,513 INFO L130 PetriNetUnfolder]: 2/81 cut-off events. [2023-01-28 07:03:40,514 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:03:40,517 INFO L83 FinitePrefix]: Finished finitePrefix Result has 91 conditions, 81 events. 2/81 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/78 useless extension candidates. Maximal degree in co-relation 63. Up to 2 conditions per place. [2023-01-28 07:03:40,518 INFO L82 GeneralOperation]: Start removeDead. Operand has 92 places, 84 transitions, 183 flow [2023-01-28 07:03:40,521 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 78 places, 69 transitions, 147 flow [2023-01-28 07:03:40,527 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:03:40,544 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 69 transitions, 147 flow [2023-01-28 07:03:40,548 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 78 places, 69 transitions, 147 flow [2023-01-28 07:03:40,548 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 78 places, 69 transitions, 147 flow [2023-01-28 07:03:40,572 INFO L130 PetriNetUnfolder]: 1/69 cut-off events. [2023-01-28 07:03:40,572 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:03:40,572 INFO L83 FinitePrefix]: Finished finitePrefix Result has 79 conditions, 69 events. 1/69 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 36 event pairs, 0 based on Foata normal form. 0/68 useless extension candidates. Maximal degree in co-relation 51. Up to 2 conditions per place. [2023-01-28 07:03:40,573 INFO L119 LiptonReduction]: Number of co-enabled transitions 974 [2023-01-28 07:03:42,137 INFO L134 LiptonReduction]: Checked pairs total: 1733 [2023-01-28 07:03:42,137 INFO L136 LiptonReduction]: Total number of compositions: 58 [2023-01-28 07:03:42,161 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:03:42,165 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@2a0f82ec, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:03:42,165 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-28 07:03:42,169 INFO L130 PetriNetUnfolder]: 0/13 cut-off events. [2023-01-28 07:03:42,169 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:03:42,169 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:03:42,170 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:03:42,170 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 07:03:42,174 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:03:42,174 INFO L85 PathProgramCache]: Analyzing trace with hash 55464821, now seen corresponding path program 1 times [2023-01-28 07:03:42,180 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:03:42,181 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235922536] [2023-01-28 07:03:42,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:03:42,181 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:03:42,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:03:42,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:03:42,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:03:42,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235922536] [2023-01-28 07:03:42,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235922536] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:03:42,625 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:03:42,625 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2023-01-28 07:03:42,626 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [462516797] [2023-01-28 07:03:42,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:03:42,631 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:03:42,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:03:42,651 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:03:42,651 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:03:42,652 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 71 out of 142 [2023-01-28 07:03:42,654 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 17 transitions, 43 flow. Second operand has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2023-01-28 07:03:42,654 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:03:42,654 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 71 of 142 [2023-01-28 07:03:42,654 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:03:42,747 INFO L130 PetriNetUnfolder]: 289/460 cut-off events. [2023-01-28 07:03:42,747 INFO L131 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2023-01-28 07:03:42,749 INFO L83 FinitePrefix]: Finished finitePrefix Result has 959 conditions, 460 events. 289/460 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 31. Compared 1579 event pairs, 85 based on Foata normal form. 6/466 useless extension candidates. Maximal degree in co-relation 948. Up to 407 conditions per place. [2023-01-28 07:03:42,753 INFO L137 encePairwiseOnDemand]: 137/142 looper letters, 23 selfloop transitions, 3 changer transitions 0/26 dead transitions. [2023-01-28 07:03:42,753 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 28 places, 26 transitions, 119 flow [2023-01-28 07:03:42,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:03:42,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:03:42,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 242 transitions. [2023-01-28 07:03:42,764 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.568075117370892 [2023-01-28 07:03:42,765 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 242 transitions. [2023-01-28 07:03:42,765 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 242 transitions. [2023-01-28 07:03:42,766 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:03:42,768 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 242 transitions. [2023-01-28 07:03:42,772 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 80.66666666666667) internal successors, (242), 3 states have internal predecessors, (242), 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) [2023-01-28 07:03:42,774 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2023-01-28 07:03:42,775 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2023-01-28 07:03:42,776 INFO L175 Difference]: Start difference. First operand has 26 places, 17 transitions, 43 flow. Second operand 3 states and 242 transitions. [2023-01-28 07:03:42,777 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 28 places, 26 transitions, 119 flow [2023-01-28 07:03:42,784 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 25 places, 26 transitions, 114 flow, removed 0 selfloop flow, removed 3 redundant places. [2023-01-28 07:03:42,785 INFO L231 Difference]: Finished difference. Result has 26 places, 18 transitions, 57 flow [2023-01-28 07:03:42,786 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=38, PETRI_DIFFERENCE_MINUEND_PLACES=23, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=16, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=13, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=57, PETRI_PLACES=26, PETRI_TRANSITIONS=18} [2023-01-28 07:03:42,789 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 0 predicate places. [2023-01-28 07:03:42,789 INFO L495 AbstractCegarLoop]: Abstraction has has 26 places, 18 transitions, 57 flow [2023-01-28 07:03:42,790 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 73.66666666666667) internal successors, (221), 3 states have internal predecessors, (221), 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) [2023-01-28 07:03:42,790 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:03:42,790 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:03:42,790 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:03:42,791 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 07:03:42,792 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:03:42,793 INFO L85 PathProgramCache]: Analyzing trace with hash 1719408301, now seen corresponding path program 1 times [2023-01-28 07:03:42,793 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:03:42,795 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297613796] [2023-01-28 07:03:42,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:03:42,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:03:42,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:03:42,991 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:03:42,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:03:42,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297613796] [2023-01-28 07:03:42,992 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297613796] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:03:42,994 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:03:42,995 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:03:43,000 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368952122] [2023-01-28 07:03:43,001 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:03:43,001 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:03:43,002 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:03:43,003 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:03:43,003 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 07:03:43,004 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 142 [2023-01-28 07:03:43,005 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 26 places, 18 transitions, 57 flow. Second operand has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 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) [2023-01-28 07:03:43,005 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:03:43,005 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 142 [2023-01-28 07:03:43,005 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:03:43,107 INFO L130 PetriNetUnfolder]: 223/400 cut-off events. [2023-01-28 07:03:43,107 INFO L131 PetriNetUnfolder]: For 79/79 co-relation queries the response was YES. [2023-01-28 07:03:43,109 INFO L83 FinitePrefix]: Finished finitePrefix Result has 919 conditions, 400 events. 223/400 cut-off events. For 79/79 co-relation queries the response was YES. Maximal size of possible extension queue 38. Compared 1623 event pairs, 47 based on Foata normal form. 30/430 useless extension candidates. Maximal degree in co-relation 908. Up to 168 conditions per place. [2023-01-28 07:03:43,111 INFO L137 encePairwiseOnDemand]: 138/142 looper letters, 23 selfloop transitions, 4 changer transitions 6/34 dead transitions. [2023-01-28 07:03:43,111 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 29 places, 34 transitions, 169 flow [2023-01-28 07:03:43,112 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:03:43,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:03:43,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 319 transitions. [2023-01-28 07:03:43,115 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5616197183098591 [2023-01-28 07:03:43,116 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 319 transitions. [2023-01-28 07:03:43,116 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 319 transitions. [2023-01-28 07:03:43,116 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:03:43,116 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 319 transitions. [2023-01-28 07:03:43,118 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 79.75) internal successors, (319), 4 states have internal predecessors, (319), 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) [2023-01-28 07:03:43,120 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2023-01-28 07:03:43,121 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2023-01-28 07:03:43,121 INFO L175 Difference]: Start difference. First operand has 26 places, 18 transitions, 57 flow. Second operand 4 states and 319 transitions. [2023-01-28 07:03:43,121 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 29 places, 34 transitions, 169 flow [2023-01-28 07:03:43,121 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 28 places, 34 transitions, 164 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:03:43,122 INFO L231 Difference]: Finished difference. Result has 30 places, 18 transitions, 71 flow [2023-01-28 07:03:43,122 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=54, PETRI_DIFFERENCE_MINUEND_PLACES=25, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=71, PETRI_PLACES=30, PETRI_TRANSITIONS=18} [2023-01-28 07:03:43,123 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 4 predicate places. [2023-01-28 07:03:43,123 INFO L495 AbstractCegarLoop]: Abstraction has has 30 places, 18 transitions, 71 flow [2023-01-28 07:03:43,124 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 74.25) internal successors, (297), 4 states have internal predecessors, (297), 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) [2023-01-28 07:03:43,124 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:03:43,124 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:03:43,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:03:43,124 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 07:03:43,125 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:03:43,125 INFO L85 PathProgramCache]: Analyzing trace with hash 1762070732, now seen corresponding path program 1 times [2023-01-28 07:03:43,125 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:03:43,125 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1270112441] [2023-01-28 07:03:43,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:03:43,126 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:03:43,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:03:43,298 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:03:43,298 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:03:43,298 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1270112441] [2023-01-28 07:03:43,299 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1270112441] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:03:43,299 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:03:43,299 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:03:43,300 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1839243938] [2023-01-28 07:03:43,300 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:03:43,300 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:03:43,301 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:03:43,301 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:03:43,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:03:43,303 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 142 [2023-01-28 07:03:43,303 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 30 places, 18 transitions, 71 flow. Second operand has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2023-01-28 07:03:43,303 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:03:43,303 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 142 [2023-01-28 07:03:43,303 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:03:43,357 INFO L130 PetriNetUnfolder]: 93/178 cut-off events. [2023-01-28 07:03:43,357 INFO L131 PetriNetUnfolder]: For 113/113 co-relation queries the response was YES. [2023-01-28 07:03:43,359 INFO L83 FinitePrefix]: Finished finitePrefix Result has 485 conditions, 178 events. 93/178 cut-off events. For 113/113 co-relation queries the response was YES. Maximal size of possible extension queue 16. Compared 582 event pairs, 28 based on Foata normal form. 7/183 useless extension candidates. Maximal degree in co-relation 471. Up to 139 conditions per place. [2023-01-28 07:03:43,360 INFO L137 encePairwiseOnDemand]: 137/142 looper letters, 22 selfloop transitions, 4 changer transitions 0/29 dead transitions. [2023-01-28 07:03:43,360 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 32 places, 29 transitions, 163 flow [2023-01-28 07:03:43,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:03:43,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:03:43,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 244 transitions. [2023-01-28 07:03:43,392 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5727699530516432 [2023-01-28 07:03:43,393 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 244 transitions. [2023-01-28 07:03:43,393 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 244 transitions. [2023-01-28 07:03:43,393 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:03:43,393 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 244 transitions. [2023-01-28 07:03:43,393 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-01-28 07:03:43,394 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2023-01-28 07:03:43,394 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 142.0) internal successors, (568), 4 states have internal predecessors, (568), 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) [2023-01-28 07:03:43,395 INFO L175 Difference]: Start difference. First operand has 30 places, 18 transitions, 71 flow. Second operand 3 states and 244 transitions. [2023-01-28 07:03:43,395 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 32 places, 29 transitions, 163 flow [2023-01-28 07:03:43,397 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 30 places, 29 transitions, 155 flow, removed 0 selfloop flow, removed 2 redundant places. [2023-01-28 07:03:43,397 INFO L231 Difference]: Finished difference. Result has 31 places, 21 transitions, 92 flow [2023-01-28 07:03:43,397 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=66, PETRI_DIFFERENCE_MINUEND_PLACES=28, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=18, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=92, PETRI_PLACES=31, PETRI_TRANSITIONS=21} [2023-01-28 07:03:43,398 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 5 predicate places. [2023-01-28 07:03:43,402 INFO L495 AbstractCegarLoop]: Abstraction has has 31 places, 21 transitions, 92 flow [2023-01-28 07:03:43,403 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 76.33333333333333) internal successors, (229), 3 states have internal predecessors, (229), 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) [2023-01-28 07:03:43,403 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:03:43,403 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:03:43,403 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:03:43,403 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 07:03:43,404 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:03:43,404 INFO L85 PathProgramCache]: Analyzing trace with hash -375248793, now seen corresponding path program 1 times [2023-01-28 07:03:43,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:03:43,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655811966] [2023-01-28 07:03:43,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:03:43,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:03:43,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:03:43,578 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:03:43,578 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:03:43,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655811966] [2023-01-28 07:03:43,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655811966] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:03:43,579 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:03:43,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:03:43,579 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129628277] [2023-01-28 07:03:43,579 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:03:43,580 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:03:43,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:03:43,581 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:03:43,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-01-28 07:03:43,582 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 142 [2023-01-28 07:03:43,582 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 31 places, 21 transitions, 92 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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) [2023-01-28 07:03:43,582 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:03:43,582 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 142 [2023-01-28 07:03:43,582 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:03:43,625 INFO L130 PetriNetUnfolder]: 59/126 cut-off events. [2023-01-28 07:03:43,626 INFO L131 PetriNetUnfolder]: For 73/83 co-relation queries the response was YES. [2023-01-28 07:03:43,626 INFO L83 FinitePrefix]: Finished finitePrefix Result has 412 conditions, 126 events. 59/126 cut-off events. For 73/83 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 372 event pairs, 14 based on Foata normal form. 17/141 useless extension candidates. Maximal degree in co-relation 397. Up to 54 conditions per place. [2023-01-28 07:03:43,628 INFO L137 encePairwiseOnDemand]: 137/142 looper letters, 26 selfloop transitions, 7 changer transitions 0/36 dead transitions. [2023-01-28 07:03:43,628 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 34 places, 36 transitions, 215 flow [2023-01-28 07:03:43,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:03:43,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:03:43,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 324 transitions. [2023-01-28 07:03:43,629 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5704225352112676 [2023-01-28 07:03:43,629 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 324 transitions. [2023-01-28 07:03:43,631 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 324 transitions. [2023-01-28 07:03:43,632 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:03:43,632 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 324 transitions. [2023-01-28 07:03:43,633 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 81.0) internal successors, (324), 4 states have internal predecessors, (324), 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) [2023-01-28 07:03:43,634 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2023-01-28 07:03:43,634 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2023-01-28 07:03:43,634 INFO L175 Difference]: Start difference. First operand has 31 places, 21 transitions, 92 flow. Second operand 4 states and 324 transitions. [2023-01-28 07:03:43,634 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 34 places, 36 transitions, 215 flow [2023-01-28 07:03:43,636 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 32 places, 36 transitions, 206 flow, removed 1 selfloop flow, removed 2 redundant places. [2023-01-28 07:03:43,636 INFO L231 Difference]: Finished difference. Result has 33 places, 24 transitions, 124 flow [2023-01-28 07:03:43,636 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=84, PETRI_DIFFERENCE_MINUEND_PLACES=29, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=21, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=4, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=124, PETRI_PLACES=33, PETRI_TRANSITIONS=24} [2023-01-28 07:03:43,637 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 7 predicate places. [2023-01-28 07:03:43,637 INFO L495 AbstractCegarLoop]: Abstraction has has 33 places, 24 transitions, 124 flow [2023-01-28 07:03:43,638 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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) [2023-01-28 07:03:43,638 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:03:43,638 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:03:43,638 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 07:03:43,638 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 07:03:43,639 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:03:43,639 INFO L85 PathProgramCache]: Analyzing trace with hash 120232283, now seen corresponding path program 1 times [2023-01-28 07:03:43,639 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:03:43,639 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [404132190] [2023-01-28 07:03:43,639 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:03:43,639 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:03:43,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:03:43,781 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:03:43,781 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:03:43,782 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [404132190] [2023-01-28 07:03:43,782 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [404132190] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:03:43,782 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:03:43,782 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-01-28 07:03:43,782 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1339573243] [2023-01-28 07:03:43,782 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:03:43,783 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-01-28 07:03:43,783 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:03:43,783 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-01-28 07:03:43,783 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2023-01-28 07:03:43,784 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 73 out of 142 [2023-01-28 07:03:43,784 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 33 places, 24 transitions, 124 flow. Second operand has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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) [2023-01-28 07:03:43,784 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:03:43,784 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 73 of 142 [2023-01-28 07:03:43,784 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:03:43,823 INFO L130 PetriNetUnfolder]: 49/105 cut-off events. [2023-01-28 07:03:43,823 INFO L131 PetriNetUnfolder]: For 155/175 co-relation queries the response was YES. [2023-01-28 07:03:43,823 INFO L83 FinitePrefix]: Finished finitePrefix Result has 368 conditions, 105 events. 49/105 cut-off events. For 155/175 co-relation queries the response was YES. Maximal size of possible extension queue 10. Compared 301 event pairs, 12 based on Foata normal form. 18/121 useless extension candidates. Maximal degree in co-relation 352. Up to 43 conditions per place. [2023-01-28 07:03:43,824 INFO L137 encePairwiseOnDemand]: 137/142 looper letters, 23 selfloop transitions, 10 changer transitions 0/36 dead transitions. [2023-01-28 07:03:43,824 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 37 places, 36 transitions, 234 flow [2023-01-28 07:03:43,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 07:03:43,824 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 07:03:43,825 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 397 transitions. [2023-01-28 07:03:43,825 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5591549295774648 [2023-01-28 07:03:43,825 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 397 transitions. [2023-01-28 07:03:43,825 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 397 transitions. [2023-01-28 07:03:43,825 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:03:43,826 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 397 transitions. [2023-01-28 07:03:43,827 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 79.4) internal successors, (397), 5 states have internal predecessors, (397), 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) [2023-01-28 07:03:43,828 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 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) [2023-01-28 07:03:43,828 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 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) [2023-01-28 07:03:43,828 INFO L175 Difference]: Start difference. First operand has 33 places, 24 transitions, 124 flow. Second operand 5 states and 397 transitions. [2023-01-28 07:03:43,828 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 37 places, 36 transitions, 234 flow [2023-01-28 07:03:43,830 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 34 places, 36 transitions, 209 flow, removed 5 selfloop flow, removed 3 redundant places. [2023-01-28 07:03:43,831 INFO L231 Difference]: Finished difference. Result has 35 places, 24 transitions, 131 flow [2023-01-28 07:03:43,831 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=103, PETRI_DIFFERENCE_MINUEND_PLACES=30, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=10, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=14, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=131, PETRI_PLACES=35, PETRI_TRANSITIONS=24} [2023-01-28 07:03:43,833 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 9 predicate places. [2023-01-28 07:03:43,833 INFO L495 AbstractCegarLoop]: Abstraction has has 35 places, 24 transitions, 131 flow [2023-01-28 07:03:43,833 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 75.4) internal successors, (377), 5 states have internal predecessors, (377), 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) [2023-01-28 07:03:43,833 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:03:43,833 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:03:43,833 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 07:03:43,833 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 07:03:43,834 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:03:43,834 INFO L85 PathProgramCache]: Analyzing trace with hash -905003426, now seen corresponding path program 1 times [2023-01-28 07:03:43,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:03:43,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [677442271] [2023-01-28 07:03:43,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:03:43,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:03:43,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:03:43,920 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:03:43,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:03:43,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [677442271] [2023-01-28 07:03:43,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [677442271] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:03:43,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:03:43,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:03:43,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [334901236] [2023-01-28 07:03:43,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:03:43,921 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:03:43,921 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:03:43,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:03:43,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 07:03:43,922 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 69 out of 142 [2023-01-28 07:03:43,922 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 35 places, 24 transitions, 131 flow. Second operand has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2023-01-28 07:03:43,922 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:03:43,923 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 69 of 142 [2023-01-28 07:03:43,923 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:03:43,968 INFO L130 PetriNetUnfolder]: 84/168 cut-off events. [2023-01-28 07:03:43,969 INFO L131 PetriNetUnfolder]: For 272/272 co-relation queries the response was YES. [2023-01-28 07:03:43,969 INFO L83 FinitePrefix]: Finished finitePrefix Result has 602 conditions, 168 events. 84/168 cut-off events. For 272/272 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 534 event pairs, 6 based on Foata normal form. 1/169 useless extension candidates. Maximal degree in co-relation 586. Up to 95 conditions per place. [2023-01-28 07:03:43,969 INFO L137 encePairwiseOnDemand]: 136/142 looper letters, 33 selfloop transitions, 7 changer transitions 13/53 dead transitions. [2023-01-28 07:03:43,970 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 39 places, 53 transitions, 398 flow [2023-01-28 07:03:43,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-01-28 07:03:43,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2023-01-28 07:03:43,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 384 transitions. [2023-01-28 07:03:43,971 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5408450704225352 [2023-01-28 07:03:43,971 INFO L72 ComplementDD]: Start complementDD. Operand 5 states and 384 transitions. [2023-01-28 07:03:43,971 INFO L73 IsDeterministic]: Start isDeterministic. Operand 5 states and 384 transitions. [2023-01-28 07:03:43,971 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:03:43,971 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 5 states and 384 transitions. [2023-01-28 07:03:43,972 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 6 states, 5 states have (on average 76.8) internal successors, (384), 5 states have internal predecessors, (384), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:03:43,973 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 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) [2023-01-28 07:03:43,973 INFO L81 ComplementDD]: Finished complementDD. Result has 6 states, 6 states have (on average 142.0) internal successors, (852), 6 states have internal predecessors, (852), 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) [2023-01-28 07:03:43,973 INFO L175 Difference]: Start difference. First operand has 35 places, 24 transitions, 131 flow. Second operand 5 states and 384 transitions. [2023-01-28 07:03:43,973 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 39 places, 53 transitions, 398 flow [2023-01-28 07:03:43,974 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 36 places, 53 transitions, 340 flow, removed 12 selfloop flow, removed 3 redundant places. [2023-01-28 07:03:43,975 INFO L231 Difference]: Finished difference. Result has 38 places, 26 transitions, 137 flow [2023-01-28 07:03:43,975 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=105, PETRI_DIFFERENCE_MINUEND_PLACES=32, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=24, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=19, PETRI_DIFFERENCE_SUBTRAHEND_STATES=5, PETRI_FLOW=137, PETRI_PLACES=38, PETRI_TRANSITIONS=26} [2023-01-28 07:03:43,976 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 12 predicate places. [2023-01-28 07:03:43,976 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 26 transitions, 137 flow [2023-01-28 07:03:43,976 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 73.0) internal successors, (292), 4 states have internal predecessors, (292), 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) [2023-01-28 07:03:43,976 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:03:43,976 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:03:43,976 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-28 07:03:43,976 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-28 07:03:43,977 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:03:43,977 INFO L85 PathProgramCache]: Analyzing trace with hash 1009241856, now seen corresponding path program 2 times [2023-01-28 07:03:43,977 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:03:43,977 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460636121] [2023-01-28 07:03:43,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:03:43,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:03:43,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:03:44,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-28 07:03:44,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:03:44,078 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460636121] [2023-01-28 07:03:44,078 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460636121] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:03:44,078 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:03:44,079 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-01-28 07:03:44,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113290999] [2023-01-28 07:03:44,079 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:03:44,079 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-01-28 07:03:44,079 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:03:44,079 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-01-28 07:03:44,080 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2023-01-28 07:03:44,080 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 72 out of 142 [2023-01-28 07:03:44,080 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 26 transitions, 137 flow. Second operand has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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) [2023-01-28 07:03:44,080 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:03:44,080 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 72 of 142 [2023-01-28 07:03:44,081 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:03:44,112 INFO L130 PetriNetUnfolder]: 46/105 cut-off events. [2023-01-28 07:03:44,112 INFO L131 PetriNetUnfolder]: For 172/172 co-relation queries the response was YES. [2023-01-28 07:03:44,113 INFO L83 FinitePrefix]: Finished finitePrefix Result has 385 conditions, 105 events. 46/105 cut-off events. For 172/172 co-relation queries the response was YES. Maximal size of possible extension queue 11. Compared 271 event pairs, 9 based on Foata normal form. 1/106 useless extension candidates. Maximal degree in co-relation 367. Up to 48 conditions per place. [2023-01-28 07:03:44,113 INFO L137 encePairwiseOnDemand]: 139/142 looper letters, 0 selfloop transitions, 0 changer transitions 32/32 dead transitions. [2023-01-28 07:03:44,113 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 32 transitions, 228 flow [2023-01-28 07:03:44,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-01-28 07:03:44,113 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2023-01-28 07:03:44,114 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 308 transitions. [2023-01-28 07:03:44,114 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5422535211267606 [2023-01-28 07:03:44,114 INFO L72 ComplementDD]: Start complementDD. Operand 4 states and 308 transitions. [2023-01-28 07:03:44,114 INFO L73 IsDeterministic]: Start isDeterministic. Operand 4 states and 308 transitions. [2023-01-28 07:03:44,115 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:03:44,115 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 4 states and 308 transitions. [2023-01-28 07:03:44,115 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 5 states, 4 states have (on average 77.0) internal successors, (308), 4 states have internal predecessors, (308), 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) [2023-01-28 07:03:44,116 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2023-01-28 07:03:44,116 INFO L81 ComplementDD]: Finished complementDD. Result has 5 states, 5 states have (on average 142.0) internal successors, (710), 5 states have internal predecessors, (710), 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) [2023-01-28 07:03:44,116 INFO L175 Difference]: Start difference. First operand has 38 places, 26 transitions, 137 flow. Second operand 4 states and 308 transitions. [2023-01-28 07:03:44,116 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 32 transitions, 228 flow [2023-01-28 07:03:44,117 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 32 transitions, 225 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:03:44,117 INFO L231 Difference]: Finished difference. Result has 39 places, 0 transitions, 0 flow [2023-01-28 07:03:44,117 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=142, PETRI_DIFFERENCE_MINUEND_FLOW=130, PETRI_DIFFERENCE_MINUEND_PLACES=36, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=25, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=0, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=25, PETRI_DIFFERENCE_SUBTRAHEND_STATES=4, PETRI_FLOW=0, PETRI_PLACES=39, PETRI_TRANSITIONS=0} [2023-01-28 07:03:44,118 INFO L281 CegarLoopForPetriNet]: 26 programPoint places, 13 predicate places. [2023-01-28 07:03:44,118 INFO L495 AbstractCegarLoop]: Abstraction has has 39 places, 0 transitions, 0 flow [2023-01-28 07:03:44,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 75.75) internal successors, (303), 4 states have internal predecessors, (303), 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) [2023-01-28 07:03:44,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (3 of 4 remaining) [2023-01-28 07:03:44,120 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 4 remaining) [2023-01-28 07:03:44,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-28 07:03:44,121 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-01-28 07:03:44,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-01-28 07:03:44,121 INFO L445 BasicCegarLoop]: Path program histogram: [2, 1, 1, 1, 1, 1] [2023-01-28 07:03:44,123 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:03:44,123 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:03:44,125 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:03:44 BasicIcfg [2023-01-28 07:03:44,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:03:44,125 INFO L158 Benchmark]: Toolchain (without parser) took 4498.93ms. Allocated memory is still 666.9MB. Free memory was 614.0MB in the beginning and 414.9MB in the end (delta: 199.2MB). Peak memory consumption was 201.4MB. Max. memory is 16.0GB. [2023-01-28 07:03:44,126 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 411.0MB. Free memory is still 358.2MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:03:44,126 INFO L158 Benchmark]: CACSL2BoogieTranslator took 399.24ms. Allocated memory is still 666.9MB. Free memory was 613.6MB in the beginning and 593.7MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. [2023-01-28 07:03:44,126 INFO L158 Benchmark]: Boogie Procedure Inliner took 45.11ms. Allocated memory is still 666.9MB. Free memory was 593.7MB in the beginning and 591.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:03:44,126 INFO L158 Benchmark]: Boogie Preprocessor took 29.19ms. Allocated memory is still 666.9MB. Free memory was 591.7MB in the beginning and 590.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:03:44,126 INFO L158 Benchmark]: RCFGBuilder took 262.71ms. Allocated memory is still 666.9MB. Free memory was 590.3MB in the beginning and 576.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. [2023-01-28 07:03:44,127 INFO L158 Benchmark]: TraceAbstraction took 3757.22ms. Allocated memory is still 666.9MB. Free memory was 575.6MB in the beginning and 414.9MB in the end (delta: 160.8MB). Peak memory consumption was 163.6MB. Max. memory is 16.0GB. [2023-01-28 07:03:44,128 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.09ms. Allocated memory is still 411.0MB. Free memory is still 358.2MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 399.24ms. Allocated memory is still 666.9MB. Free memory was 613.6MB in the beginning and 593.7MB in the end (delta: 20.0MB). Peak memory consumption was 21.0MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 45.11ms. Allocated memory is still 666.9MB. Free memory was 593.7MB in the beginning and 591.7MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 29.19ms. Allocated memory is still 666.9MB. Free memory was 591.7MB in the beginning and 590.3MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.0GB. * RCFGBuilder took 262.71ms. Allocated memory is still 666.9MB. Free memory was 590.3MB in the beginning and 576.3MB in the end (delta: 14.0MB). Peak memory consumption was 14.7MB. Max. memory is 16.0GB. * TraceAbstraction took 3757.22ms. Allocated memory is still 666.9MB. Free memory was 575.6MB in the beginning and 414.9MB in the end (delta: 160.8MB). Peak memory consumption was 163.6MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 1.6s, 78 PlacesBefore, 26 PlacesAfterwards, 69 TransitionsBefore, 17 TransitionsAfterwards, 974 CoEnabledTransitionPairs, 5 FixpointIterations, 20 TrivialSequentialCompositions, 34 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 4 ConcurrentYvCompositions, 0 ChoiceCompositions, 58 TotalNumberOfCompositions, 1733 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 1063, independent: 994, independent conditional: 0, independent unconditional: 994, dependent: 69, dependent conditional: 0, dependent unconditional: 69, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 560, independent: 540, independent conditional: 0, independent unconditional: 540, dependent: 20, dependent conditional: 0, dependent unconditional: 20, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 1063, independent: 454, independent conditional: 0, independent unconditional: 454, dependent: 49, dependent conditional: 0, dependent unconditional: 49, unknown: 560, unknown conditional: 0, unknown unconditional: 560] , Statistics on independence cache: Total cache size (in pairs): 43, Positive cache size: 36, Positive conditional cache size: 0, Positive unconditional cache size: 36, Negative cache size: 7, Negative conditional cache size: 0, Negative unconditional cache size: 7, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 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, 106 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: 3.7s, OverallIterations: 7, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 1.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 78 SdHoareTripleChecker+Valid, 0.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 78 mSDsluCounter, 5 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1 mSDsCounter, 9 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 252 IncrementalHoareTripleChecker+Invalid, 261 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 9 mSolverCounterUnsat, 4 mSDtfsCounter, 252 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=6, InterpolantAutomatonStates: 28, 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, 0.1s SatisfiabilityAnalysisTime, 1.1s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 304 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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! [2023-01-28 07:03:44,142 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...