/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/ldv-races/race-2_3-container_of.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-28 07:04:49,934 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-28 07:04:49,935 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-28 07:04:49,967 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-01-28 07:04:49,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-28 07:04:49,982 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-28 07:04:49,982 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-28 07:04:49,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-28 07:04:49,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-28 07:04:49,984 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-28 07:04:49,985 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-28 07:04:49,989 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-28 07:04:49,989 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-28 07:04:49,990 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-28 07:04:49,991 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-28 07:04:49,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-28 07:04:49,997 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-28 07:04:50,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-28 07:04:50,002 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-28 07:04:50,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-28 07:04:50,004 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 07:04:50,025 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-28 07:04:50,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-28 07:04:50,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-28 07:04:50,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-28 07:04:50,027 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-28 07:04:50,027 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-28 07:04:50,027 INFO L138 SettingsManager]: * Use SBE=true [2023-01-28 07:04:50,027 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-28 07:04:50,027 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-28 07:04:50,027 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-28 07:04:50,028 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-28 07:04:50,028 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-28 07:04:50,028 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-28 07:04:50,028 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-28 07:04:50,028 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-28 07:04:50,028 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-28 07:04:50,028 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-28 07:04:50,028 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-28 07:04:50,028 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-28 07:04:50,028 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-28 07:04:50,029 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-28 07:04:50,029 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-28 07:04:50,029 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-28 07:04:50,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:04:50,029 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-28 07:04:50,029 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-28 07:04:50,029 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-28 07:04:50,029 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-28 07:04:50,029 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-28 07:04:50,030 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-28 07:04:50,030 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-28 07:04:50,030 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: When to check the insufficient erros location relative to the other error locations -> AFTER [2023-01-28 07:04:50,191 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-28 07:04:50,206 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-28 07:04:50,207 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-28 07:04:50,208 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-28 07:04:50,210 INFO L275 PluginConnector]: CDTParser initialized [2023-01-28 07:04:50,211 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-01-28 07:04:51,122 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-28 07:04:51,401 INFO L351 CDTParser]: Found 1 translation units. [2023-01-28 07:04:51,402 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i [2023-01-28 07:04:51,420 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/685c1a35c/27131be6de8d400c9ae088da7e5cd248/FLAGc526728c5 [2023-01-28 07:04:51,432 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/685c1a35c/27131be6de8d400c9ae088da7e5cd248 [2023-01-28 07:04:51,434 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-28 07:04:51,435 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-28 07:04:51,437 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-28 07:04:51,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-28 07:04:51,439 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-28 07:04:51,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:04:51" (1/1) ... [2023-01-28 07:04:51,440 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f38c18 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:51, skipping insertion in model container [2023-01-28 07:04:51,440 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.01 07:04:51" (1/1) ... [2023-01-28 07:04:51,444 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-28 07:04:51,485 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-28 07:04:51,576 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-28 07:04:51,861 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-01-28 07:04:51,890 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:04:51,909 INFO L203 MainTranslator]: Completed pre-run [2023-01-28 07:04:51,916 WARN L633 FunctionHandler]: implicit declaration of function __builtin_bswap16 [2023-01-28 07:04:51,945 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/ldv-races/race-2_3-container_of.i[75002,75015] [2023-01-28 07:04:51,955 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-28 07:04:52,025 WARN L667 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:04:52,026 WARN L667 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:04:52,026 WARN L667 CHandler]: The function __builtin_bswap16 is called, but not defined or handled by StandardFunctionHandler. [2023-01-28 07:04:52,030 INFO L208 MainTranslator]: Completed translation [2023-01-28 07:04:52,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52 WrapperNode [2023-01-28 07:04:52,031 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-28 07:04:52,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-28 07:04:52,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-28 07:04:52,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-28 07:04:52,036 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,065 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,111 INFO L138 Inliner]: procedures = 469, calls = 63, calls flagged for inlining = 12, calls inlined = 12, statements flattened = 144 [2023-01-28 07:04:52,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-28 07:04:52,112 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-28 07:04:52,112 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-28 07:04:52,112 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-28 07:04:52,118 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,118 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,128 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,129 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,142 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,157 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,159 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-28 07:04:52,163 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-28 07:04:52,163 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-28 07:04:52,163 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-28 07:04:52,163 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (1/1) ... [2023-01-28 07:04:52,167 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-28 07:04:52,178 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-28 07:04:52,189 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 07:04:52,191 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 07:04:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-01-28 07:04:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-28 07:04:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-01-28 07:04:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-28 07:04:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-28 07:04:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-28 07:04:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-28 07:04:52,213 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-28 07:04:52,213 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-28 07:04:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure my_callback [2023-01-28 07:04:52,214 INFO L138 BoogieDeclarations]: Found implementation of procedure my_callback [2023-01-28 07:04:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-28 07:04:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-28 07:04:52,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-28 07:04:52,215 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 07:04:52,452 INFO L236 CfgBuilder]: Building ICFG [2023-01-28 07:04:52,454 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-28 07:04:52,672 INFO L277 CfgBuilder]: Performing block encoding [2023-01-28 07:04:52,715 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-28 07:04:52,716 INFO L302 CfgBuilder]: Removed 0 assume(true) statements. [2023-01-28 07:04:52,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:04:52 BoogieIcfgContainer [2023-01-28 07:04:52,717 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-28 07:04:52,719 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-28 07:04:52,719 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-28 07:04:52,721 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-28 07:04:52,721 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.01 07:04:51" (1/3) ... [2023-01-28 07:04:52,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e10e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:04:52, skipping insertion in model container [2023-01-28 07:04:52,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.01 07:04:52" (2/3) ... [2023-01-28 07:04:52,722 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31e10e73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.01 07:04:52, skipping insertion in model container [2023-01-28 07:04:52,722 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.01 07:04:52" (3/3) ... [2023-01-28 07:04:52,726 INFO L112 eAbstractionObserver]: Analyzing ICFG race-2_3-container_of.i [2023-01-28 07:04:52,738 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-28 07:04:52,738 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2023-01-28 07:04:52,738 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-28 07:04:52,794 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2023-01-28 07:04:52,828 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 159 places, 159 transitions, 334 flow [2023-01-28 07:04:52,896 INFO L130 PetriNetUnfolder]: 8/197 cut-off events. [2023-01-28 07:04:52,896 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:04:52,901 INFO L83 FinitePrefix]: Finished finitePrefix Result has 206 conditions, 197 events. 8/197 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 338 event pairs, 0 based on Foata normal form. 0/179 useless extension candidates. Maximal degree in co-relation 104. Up to 4 conditions per place. [2023-01-28 07:04:52,901 INFO L82 GeneralOperation]: Start removeDead. Operand has 159 places, 159 transitions, 334 flow [2023-01-28 07:04:52,910 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 149 places, 147 transitions, 306 flow [2023-01-28 07:04:52,913 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-28 07:04:52,935 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 149 places, 147 transitions, 306 flow [2023-01-28 07:04:52,938 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 149 places, 147 transitions, 306 flow [2023-01-28 07:04:52,938 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 149 places, 147 transitions, 306 flow [2023-01-28 07:04:52,980 INFO L130 PetriNetUnfolder]: 5/178 cut-off events. [2023-01-28 07:04:52,980 INFO L131 PetriNetUnfolder]: For 2/2 co-relation queries the response was YES. [2023-01-28 07:04:52,982 INFO L83 FinitePrefix]: Finished finitePrefix Result has 187 conditions, 178 events. 5/178 cut-off events. For 2/2 co-relation queries the response was YES. Maximal size of possible extension queue 7. Compared 286 event pairs, 0 based on Foata normal form. 0/165 useless extension candidates. Maximal degree in co-relation 94. Up to 4 conditions per place. [2023-01-28 07:04:52,985 INFO L119 LiptonReduction]: Number of co-enabled transitions 2704 [2023-01-28 07:05:00,409 INFO L134 LiptonReduction]: Checked pairs total: 6343 [2023-01-28 07:05:00,409 INFO L136 LiptonReduction]: Total number of compositions: 142 [2023-01-28 07:05:00,419 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-28 07:05:00,423 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;@3f2228e5, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-28 07:05:00,423 INFO L358 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2023-01-28 07:05:00,426 INFO L130 PetriNetUnfolder]: 0/11 cut-off events. [2023-01-28 07:05:00,426 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-28 07:05:00,427 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:00,427 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1] [2023-01-28 07:05:00,427 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:00,430 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:00,430 INFO L85 PathProgramCache]: Analyzing trace with hash 556061324, now seen corresponding path program 1 times [2023-01-28 07:05:00,436 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:00,436 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1865158175] [2023-01-28 07:05:00,436 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:00,437 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:00,888 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 07:05:00,888 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:00,889 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1865158175] [2023-01-28 07:05:00,889 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1865158175] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:00,889 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:00,889 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:05:00,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1348744197] [2023-01-28 07:05:00,891 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:00,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:00,900 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:00,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:00,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:00,917 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 301 [2023-01-28 07:05:00,920 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 39 places, 35 transitions, 82 flow. Second operand has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 07:05:00,920 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:00,920 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 301 [2023-01-28 07:05:00,921 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:01,161 INFO L130 PetriNetUnfolder]: 887/1487 cut-off events. [2023-01-28 07:05:01,161 INFO L131 PetriNetUnfolder]: For 14/14 co-relation queries the response was YES. [2023-01-28 07:05:01,165 INFO L83 FinitePrefix]: Finished finitePrefix Result has 2999 conditions, 1487 events. 887/1487 cut-off events. For 14/14 co-relation queries the response was YES. Maximal size of possible extension queue 77. Compared 7100 event pairs, 642 based on Foata normal form. 37/1343 useless extension candidates. Maximal degree in co-relation 2896. Up to 1268 conditions per place. [2023-01-28 07:05:01,170 INFO L137 encePairwiseOnDemand]: 293/301 looper letters, 40 selfloop transitions, 6 changer transitions 0/46 dead transitions. [2023-01-28 07:05:01,170 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 41 places, 46 transitions, 196 flow [2023-01-28 07:05:01,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:01,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:01,182 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 382 transitions. [2023-01-28 07:05:01,185 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4230343300110742 [2023-01-28 07:05:01,186 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 382 transitions. [2023-01-28 07:05:01,186 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 382 transitions. [2023-01-28 07:05:01,188 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:01,190 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 382 transitions. [2023-01-28 07:05:01,193 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 127.33333333333333) internal successors, (382), 3 states have internal predecessors, (382), 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 07:05:01,196 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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 07:05:01,196 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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 07:05:01,198 INFO L175 Difference]: Start difference. First operand has 39 places, 35 transitions, 82 flow. Second operand 3 states and 382 transitions. [2023-01-28 07:05:01,198 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 41 places, 46 transitions, 196 flow [2023-01-28 07:05:01,200 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 37 places, 46 transitions, 188 flow, removed 0 selfloop flow, removed 4 redundant places. [2023-01-28 07:05:01,202 INFO L231 Difference]: Finished difference. Result has 38 places, 38 transitions, 108 flow [2023-01-28 07:05:01,203 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=72, PETRI_DIFFERENCE_MINUEND_PLACES=35, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=34, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=2, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=28, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=108, PETRI_PLACES=38, PETRI_TRANSITIONS=38} [2023-01-28 07:05:01,208 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, -1 predicate places. [2023-01-28 07:05:01,208 INFO L495 AbstractCegarLoop]: Abstraction has has 38 places, 38 transitions, 108 flow [2023-01-28 07:05:01,208 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.66666666666667) internal successors, (338), 3 states have internal predecessors, (338), 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 07:05:01,208 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:01,210 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1] [2023-01-28 07:05:01,210 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-28 07:05:01,211 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:01,217 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:01,217 INFO L85 PathProgramCache]: Analyzing trace with hash 17937463, now seen corresponding path program 1 times [2023-01-28 07:05:01,217 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:01,218 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181301622] [2023-01-28 07:05:01,218 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:01,218 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:01,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:01,398 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 07:05:01,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:01,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1181301622] [2023-01-28 07:05:01,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1181301622] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:01,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:01,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:05:01,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249953003] [2023-01-28 07:05:01,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:01,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:01,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:01,406 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:01,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:01,406 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 111 out of 301 [2023-01-28 07:05:01,407 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 38 places, 38 transitions, 108 flow. Second operand has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 07:05:01,407 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:01,407 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 111 of 301 [2023-01-28 07:05:01,407 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:01,607 INFO L130 PetriNetUnfolder]: 1003/1694 cut-off events. [2023-01-28 07:05:01,607 INFO L131 PetriNetUnfolder]: For 407/407 co-relation queries the response was YES. [2023-01-28 07:05:01,609 INFO L83 FinitePrefix]: Finished finitePrefix Result has 4043 conditions, 1694 events. 1003/1694 cut-off events. For 407/407 co-relation queries the response was YES. Maximal size of possible extension queue 93. Compared 8453 event pairs, 718 based on Foata normal form. 0/1519 useless extension candidates. Maximal degree in co-relation 2139. Up to 1475 conditions per place. [2023-01-28 07:05:01,615 INFO L137 encePairwiseOnDemand]: 294/301 looper letters, 43 selfloop transitions, 9 changer transitions 2/54 dead transitions. [2023-01-28 07:05:01,615 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 40 places, 54 transitions, 271 flow [2023-01-28 07:05:01,616 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:01,616 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:01,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 380 transitions. [2023-01-28 07:05:01,617 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.42081949058693247 [2023-01-28 07:05:01,617 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 380 transitions. [2023-01-28 07:05:01,617 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 380 transitions. [2023-01-28 07:05:01,618 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:01,618 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 380 transitions. [2023-01-28 07:05:01,619 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 126.66666666666667) internal successors, (380), 3 states have internal predecessors, (380), 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 07:05:01,621 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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 07:05:01,621 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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 07:05:01,621 INFO L175 Difference]: Start difference. First operand has 38 places, 38 transitions, 108 flow. Second operand 3 states and 380 transitions. [2023-01-28 07:05:01,621 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 40 places, 54 transitions, 271 flow [2023-01-28 07:05:01,626 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 39 places, 54 transitions, 260 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:05:01,627 INFO L231 Difference]: Finished difference. Result has 40 places, 44 transitions, 173 flow [2023-01-28 07:05:01,627 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=102, PETRI_DIFFERENCE_MINUEND_PLACES=37, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=38, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=29, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=173, PETRI_PLACES=40, PETRI_TRANSITIONS=44} [2023-01-28 07:05:01,629 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 1 predicate places. [2023-01-28 07:05:01,630 INFO L495 AbstractCegarLoop]: Abstraction has has 40 places, 44 transitions, 173 flow [2023-01-28 07:05:01,630 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 112.33333333333333) internal successors, (337), 3 states have internal predecessors, (337), 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 07:05:01,630 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:01,630 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:01,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-01-28 07:05:01,631 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:01,633 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:01,633 INFO L85 PathProgramCache]: Analyzing trace with hash -234562962, now seen corresponding path program 1 times [2023-01-28 07:05:01,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:01,633 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [573307749] [2023-01-28 07:05:01,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:01,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:01,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:01,786 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 07:05:01,787 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:01,787 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [573307749] [2023-01-28 07:05:01,787 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [573307749] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:01,787 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:01,787 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:05:01,788 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474042233] [2023-01-28 07:05:01,788 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:01,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:01,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:01,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:01,789 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:01,789 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 301 [2023-01-28 07:05:01,790 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 40 places, 44 transitions, 173 flow. Second operand has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 07:05:01,790 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:01,790 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 301 [2023-01-28 07:05:01,790 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:01,991 INFO L130 PetriNetUnfolder]: 1317/2197 cut-off events. [2023-01-28 07:05:01,991 INFO L131 PetriNetUnfolder]: For 1267/1267 co-relation queries the response was YES. [2023-01-28 07:05:01,994 INFO L83 FinitePrefix]: Finished finitePrefix Result has 5814 conditions, 2197 events. 1317/2197 cut-off events. For 1267/1267 co-relation queries the response was YES. Maximal size of possible extension queue 117. Compared 11566 event pairs, 620 based on Foata normal form. 0/2096 useless extension candidates. Maximal degree in co-relation 3185. Up to 1725 conditions per place. [2023-01-28 07:05:02,002 INFO L137 encePairwiseOnDemand]: 292/301 looper letters, 54 selfloop transitions, 8 changer transitions 0/62 dead transitions. [2023-01-28 07:05:02,002 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 42 places, 62 transitions, 353 flow [2023-01-28 07:05:02,003 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:02,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:02,004 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 390 transitions. [2023-01-28 07:05:02,004 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4318936877076412 [2023-01-28 07:05:02,004 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 390 transitions. [2023-01-28 07:05:02,004 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 390 transitions. [2023-01-28 07:05:02,004 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:02,004 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 390 transitions. [2023-01-28 07:05:02,006 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 130.0) internal successors, (390), 3 states have internal predecessors, (390), 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 07:05:02,007 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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 07:05:02,008 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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 07:05:02,008 INFO L175 Difference]: Start difference. First operand has 40 places, 44 transitions, 173 flow. Second operand 3 states and 390 transitions. [2023-01-28 07:05:02,008 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 42 places, 62 transitions, 353 flow [2023-01-28 07:05:02,011 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 41 places, 62 transitions, 343 flow, removed 0 selfloop flow, removed 1 redundant places. [2023-01-28 07:05:02,012 INFO L231 Difference]: Finished difference. Result has 43 places, 51 transitions, 244 flow [2023-01-28 07:05:02,012 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=164, PETRI_DIFFERENCE_MINUEND_PLACES=39, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=44, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=36, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=244, PETRI_PLACES=43, PETRI_TRANSITIONS=51} [2023-01-28 07:05:02,013 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 4 predicate places. [2023-01-28 07:05:02,015 INFO L495 AbstractCegarLoop]: Abstraction has has 43 places, 51 transitions, 244 flow [2023-01-28 07:05:02,015 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.33333333333333) internal successors, (346), 3 states have internal predecessors, (346), 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 07:05:02,015 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:02,015 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:02,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-01-28 07:05:02,015 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:02,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:02,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1318483104, now seen corresponding path program 1 times [2023-01-28 07:05:02,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:02,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [571004821] [2023-01-28 07:05:02,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:02,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:02,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-28 07:05:02,116 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 07:05:02,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-28 07:05:02,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [571004821] [2023-01-28 07:05:02,117 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [571004821] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-28 07:05:02,117 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-28 07:05:02,117 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-28 07:05:02,117 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084765852] [2023-01-28 07:05:02,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-28 07:05:02,118 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-28 07:05:02,118 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-28 07:05:02,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-28 07:05:02,119 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-28 07:05:02,120 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 113 out of 301 [2023-01-28 07:05:02,120 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 43 places, 51 transitions, 244 flow. Second operand has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:02,120 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-28 07:05:02,120 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 113 of 301 [2023-01-28 07:05:02,120 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-28 07:05:02,393 INFO L130 PetriNetUnfolder]: 1580/2622 cut-off events. [2023-01-28 07:05:02,393 INFO L131 PetriNetUnfolder]: For 3371/3371 co-relation queries the response was YES. [2023-01-28 07:05:02,397 INFO L83 FinitePrefix]: Finished finitePrefix Result has 7961 conditions, 2622 events. 1580/2622 cut-off events. For 3371/3371 co-relation queries the response was YES. Maximal size of possible extension queue 144. Compared 14140 event pairs, 736 based on Foata normal form. 0/2557 useless extension candidates. Maximal degree in co-relation 687. Up to 1997 conditions per place. [2023-01-28 07:05:02,406 INFO L137 encePairwiseOnDemand]: 292/301 looper letters, 58 selfloop transitions, 14 changer transitions 0/72 dead transitions. [2023-01-28 07:05:02,406 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 45 places, 72 transitions, 499 flow [2023-01-28 07:05:02,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-28 07:05:02,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-28 07:05:02,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 389 transitions. [2023-01-28 07:05:02,411 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.43078626799557035 [2023-01-28 07:05:02,411 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 389 transitions. [2023-01-28 07:05:02,412 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 389 transitions. [2023-01-28 07:05:02,412 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-28 07:05:02,412 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 389 transitions. [2023-01-28 07:05:02,413 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 129.66666666666666) internal successors, (389), 3 states have internal predecessors, (389), 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 07:05:02,414 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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 07:05:02,414 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 301.0) internal successors, (1204), 4 states have internal predecessors, (1204), 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 07:05:02,414 INFO L175 Difference]: Start difference. First operand has 43 places, 51 transitions, 244 flow. Second operand 3 states and 389 transitions. [2023-01-28 07:05:02,414 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 45 places, 72 transitions, 499 flow [2023-01-28 07:05:02,420 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 43 places, 72 transitions, 441 flow, removed 16 selfloop flow, removed 2 redundant places. [2023-01-28 07:05:02,421 INFO L231 Difference]: Finished difference. Result has 45 places, 62 transitions, 352 flow [2023-01-28 07:05:02,421 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=301, PETRI_DIFFERENCE_MINUEND_FLOW=212, PETRI_DIFFERENCE_MINUEND_PLACES=41, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=51, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=37, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=352, PETRI_PLACES=45, PETRI_TRANSITIONS=62} [2023-01-28 07:05:02,422 INFO L281 CegarLoopForPetriNet]: 39 programPoint places, 6 predicate places. [2023-01-28 07:05:02,422 INFO L495 AbstractCegarLoop]: Abstraction has has 45 places, 62 transitions, 352 flow [2023-01-28 07:05:02,422 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 115.66666666666667) internal successors, (347), 3 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-28 07:05:02,422 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-28 07:05:02,422 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-28 07:05:02,423 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-01-28 07:05:02,423 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (and 5 more)] === [2023-01-28 07:05:02,423 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-28 07:05:02,423 INFO L85 PathProgramCache]: Analyzing trace with hash 911165254, now seen corresponding path program 1 times [2023-01-28 07:05:02,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-28 07:05:02,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664937280] [2023-01-28 07:05:02,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-28 07:05:02,423 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-28 07:05:02,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:05:02,455 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-28 07:05:02,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-28 07:05:02,497 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-28 07:05:02,497 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-28 07:05:02,498 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (7 of 8 remaining) [2023-01-28 07:05:02,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr4ASSERT_VIOLATIONERROR_FUNCTION (6 of 8 remaining) [2023-01-28 07:05:02,501 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION (5 of 8 remaining) [2023-01-28 07:05:02,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr5ASSERT_VIOLATIONERROR_FUNCTION (4 of 8 remaining) [2023-01-28 07:05:02,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION (3 of 8 remaining) [2023-01-28 07:05:02,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr3ASSERT_VIOLATIONERROR_FUNCTION (2 of 8 remaining) [2023-01-28 07:05:02,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 8 remaining) [2023-01-28 07:05:02,502 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 8 remaining) [2023-01-28 07:05:02,502 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-01-28 07:05:02,502 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-01-28 07:05:02,506 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-28 07:05:02,506 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-28 07:05:02,543 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.01 07:05:02 BasicIcfg [2023-01-28 07:05:02,543 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-28 07:05:02,544 INFO L158 Benchmark]: Toolchain (without parser) took 11108.56ms. Allocated memory was 346.0MB in the beginning and 499.1MB in the end (delta: 153.1MB). Free memory was 311.3MB in the beginning and 266.8MB in the end (delta: 44.5MB). Peak memory consumption was 199.7MB. Max. memory is 16.0GB. [2023-01-28 07:05:02,544 INFO L158 Benchmark]: CDTParser took 0.09ms. Allocated memory is still 255.9MB. Free memory was 213.3MB in the beginning and 213.2MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.0GB. [2023-01-28 07:05:02,544 INFO L158 Benchmark]: CACSL2BoogieTranslator took 594.42ms. Allocated memory is still 346.0MB. Free memory was 311.3MB in the beginning and 256.0MB in the end (delta: 55.2MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. [2023-01-28 07:05:02,544 INFO L158 Benchmark]: Boogie Procedure Inliner took 79.83ms. Allocated memory is still 346.0MB. Free memory was 256.0MB in the beginning and 319.7MB in the end (delta: -63.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. [2023-01-28 07:05:02,548 INFO L158 Benchmark]: Boogie Preprocessor took 50.42ms. Allocated memory is still 346.0MB. Free memory was 318.8MB in the beginning and 315.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-28 07:05:02,548 INFO L158 Benchmark]: RCFGBuilder took 554.46ms. Allocated memory is still 346.0MB. Free memory was 315.8MB in the beginning and 288.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. [2023-01-28 07:05:02,548 INFO L158 Benchmark]: TraceAbstraction took 9824.13ms. Allocated memory was 346.0MB in the beginning and 499.1MB in the end (delta: 153.1MB). Free memory was 288.2MB in the beginning and 266.8MB in the end (delta: 21.4MB). Peak memory consumption was 174.5MB. Max. memory is 16.0GB. [2023-01-28 07:05:02,549 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 255.9MB. Free memory was 213.3MB in the beginning and 213.2MB in the end (delta: 167.9kB). There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 594.42ms. Allocated memory is still 346.0MB. Free memory was 311.3MB in the beginning and 256.0MB in the end (delta: 55.2MB). Peak memory consumption was 56.6MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 79.83ms. Allocated memory is still 346.0MB. Free memory was 256.0MB in the beginning and 319.7MB in the end (delta: -63.6MB). Peak memory consumption was 8.4MB. Max. memory is 16.0GB. * Boogie Preprocessor took 50.42ms. Allocated memory is still 346.0MB. Free memory was 318.8MB in the beginning and 315.8MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 554.46ms. Allocated memory is still 346.0MB. Free memory was 315.8MB in the beginning and 288.6MB in the end (delta: 27.3MB). Peak memory consumption was 27.3MB. Max. memory is 16.0GB. * TraceAbstraction took 9824.13ms. Allocated memory was 346.0MB in the beginning and 499.1MB in the end (delta: 153.1MB). Free memory was 288.2MB in the beginning and 266.8MB in the end (delta: 21.4MB). Peak memory consumption was 174.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 7.5s, 149 PlacesBefore, 39 PlacesAfterwards, 147 TransitionsBefore, 35 TransitionsAfterwards, 2704 CoEnabledTransitionPairs, 6 FixpointIterations, 72 TrivialSequentialCompositions, 48 ConcurrentSequentialCompositions, 4 TrivialYvCompositions, 16 ConcurrentYvCompositions, 2 ChoiceCompositions, 142 TotalNumberOfCompositions, 6343 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 2530, independent: 2290, independent conditional: 0, independent unconditional: 2290, dependent: 240, dependent conditional: 0, dependent unconditional: 240, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 1396, independent: 1344, independent conditional: 0, independent unconditional: 1344, dependent: 52, dependent conditional: 0, dependent unconditional: 52, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 2530, independent: 946, independent conditional: 0, independent unconditional: 946, dependent: 188, dependent conditional: 0, dependent unconditional: 188, unknown: 1396, unknown conditional: 0, unknown unconditional: 1396] , Statistics on independence cache: Total cache size (in pairs): 88, Positive cache size: 62, Positive conditional cache size: 0, Positive unconditional cache size: 62, Negative cache size: 26, Negative conditional cache size: 0, Negative unconditional cache size: 26, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - CounterExampleResult [Line: 1675]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1676] 0 pthread_t t1,t2; [L1745] CALL, EXPR 0 my_drv_init() [L1739] 0 return 0; [L1745] RET, EXPR 0 my_drv_init() [L1745] 0 int ret = my_drv_init(); [L1746] COND TRUE 0 ret==0 [L1747] 0 int probe_ret; [L1748] 0 struct my_data data; [L1749] CALL 0 my_drv_probe(&data) [L1706] 0 struct device *d = &data->dev; [L1708] 0 data->shared.a = 0 [L1709] 0 data->shared.b = 0 [L1710] 0 int res = __VERIFIER_nondet_int(); [L1711] COND FALSE 0 !(\read(res)) [L1713] FCALL, FORK 0 pthread_create(&t1, ((void *)0), my_callback, (void *)d) VAL [arg={5:24}, d={5:24}, data={5:0}, data={5:0}, pthread_create(&t1, ((void *)0), my_callback, (void *)d)=-2, res=0, t1={3:0}, t2={4:0}] [L1689] 1 struct device *dev = (struct device*)arg; [L1690] 1 struct my_data *data; [L1691] 1 const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); [L1691] 1 data = ({ const typeof( ((struct my_data *)0)->dev ) *__mptr = (dev); (struct my_data *)( (char *)__mptr - ((unsigned long) &((struct my_data *)0)->dev) );}) [L1714] FCALL, FORK 0 pthread_create(&t2, ((void *)0), my_callback, (void *)d) VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_create(&t2, ((void *)0), my_callback, (void *)d)=-1, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1716] 0 data->shared.a = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, pthread_mutex_lock (&data->lock)=0, res=0, t1={3:0}, t2={4:0}] [L1694] 1 data->shared.a = 1 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, t1={3:0}, t2={4:0}] [L1719] 0 data->shared.b = 3 VAL [__mptr={5:24}, arg={5:24}, arg={5:24}, d={5:24}, data={5:0}, data={5:0}, data={5:0}, dev={5:24}, res=0, t1={3:0}, t2={4:0}] [L1722] EXPR 0 data->shared.a [L1722] CALL 0 ldv_assert(data->shared.a==3) [L1675] COND TRUE 0 !expression [L1675] 0 reach_error() VAL [\old(expression)=0, __mptr={5:24}, arg={5:24}, arg={5:24}, data={5:0}, dev={5:24}, expression=0, t1={3:0}, t2={4:0}] - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1675]: Unable to prove that call to reach_error is unreachable Unable to prove that call to reach_error is unreachable Reason: Not analyzed. - UnprovableResult [Line: 1713]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - UnprovableResult [Line: 1714]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 4 procedures, 169 locations, 8 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: 9.7s, OverallIterations: 5, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 1.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 7.6s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 35 SdHoareTripleChecker+Valid, 0.3s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 35 mSDsluCounter, 18 SdHoareTripleChecker+Invalid, 0.2s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 294 IncrementalHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 18 mSDtfsCounter, 294 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=352occurred in iteration=4, InterpolantAutomatonStates: 12, 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, 0.7s InterpolantComputationTime, 33 NumberOfCodeBlocks, 33 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 140 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 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 RESULT: Ultimate proved your program to be incorrect! [2023-01-28 07:05:02,585 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...