/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 -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:29:34,139 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:29:34,141 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:29:34,171 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:29:34,171 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:29:34,175 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:29:34,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:29:34,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:29:34,180 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:29:34,184 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:29:34,185 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:29:34,186 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:29:34,186 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:29:34,188 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:29:34,189 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:29:34,190 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:29:34,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:29:34,190 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:29:34,192 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:29:34,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:29:34,196 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:29:34,197 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:29:34,198 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:29:34,198 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:29:34,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:29:34,209 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:29:34,210 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:29:34,210 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:29:34,211 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 [2023-01-27 19:29:34,231 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:29:34,231 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:29:34,232 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:29:34,232 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:29:34,233 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:29:34,233 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:29:34,233 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:29:34,233 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:29:34,233 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:29:34,233 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:29:34,234 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:29:34,234 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:29:34,234 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:29:34,234 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:29:34,234 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:29:34,234 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:29:34,234 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:29:34,234 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:29:34,234 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:29:34,234 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:29:34,234 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:29:34,235 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:29:34,235 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:29:34,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:29:34,235 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:29:34,235 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:29:34,235 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:29:34,235 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:29:34,235 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:29:34,235 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:29:34,235 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:29:34,235 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:29:34,415 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:29:34,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:29:34,440 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:29:34,441 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:29:34,441 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:29:34,442 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i [2023-01-27 19:29:35,409 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:29:35,602 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:29:35,603 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i [2023-01-27 19:29:35,626 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0005daf7/70d6e40890d74d0899ef0a13495f665d/FLAG89cabd05c [2023-01-27 19:29:35,635 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e0005daf7/70d6e40890d74d0899ef0a13495f665d [2023-01-27 19:29:35,637 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:29:35,638 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:29:35,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:29:35,639 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:29:35,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:29:35,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:29:35" (1/1) ... [2023-01-27 19:29:35,642 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f265bb2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:35, skipping insertion in model container [2023-01-27 19:29:35,642 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:29:35" (1/1) ... [2023-01-27 19:29:35,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:29:35,676 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:29:35,902 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2023-01-27 19:29:35,922 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:29:35,962 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:29:35,982 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_87-lists_racefree.i[47038,47051] [2023-01-27 19:29:35,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:29:36,026 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:29:36,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36 WrapperNode [2023-01-27 19:29:36,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:29:36,027 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:29:36,028 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:29:36,028 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:29:36,032 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,043 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,061 INFO L138 Inliner]: procedures = 278, calls = 60, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 228 [2023-01-27 19:29:36,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:29:36,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:29:36,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:29:36,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:29:36,068 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,068 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,071 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,071 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,077 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,079 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,081 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,082 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,085 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:29:36,085 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:29:36,085 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:29:36,085 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:29:36,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (1/1) ... [2023-01-27 19:29:36,089 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:29:36,097 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:29:36,112 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) [2023-01-27 19:29:36,119 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 [2023-01-27 19:29:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:29:36,139 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 19:29:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-01-27 19:29:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-01-27 19:29:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:29:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 19:29:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-01-27 19:29:36,140 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-01-27 19:29:36,140 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:29:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:29:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 19:29:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:29:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 19:29:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:29:36,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:29:36,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:29:36,142 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-01-27 19:29:36,303 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:29:36,305 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:29:36,580 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:29:36,588 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:29:36,588 INFO L302 CfgBuilder]: Removed 16 assume(true) statements. [2023-01-27 19:29:36,590 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:29:36 BoogieIcfgContainer [2023-01-27 19:29:36,590 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:29:36,591 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:29:36,591 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:29:36,593 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:29:36,593 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:29:35" (1/3) ... [2023-01-27 19:29:36,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45661d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:29:36, skipping insertion in model container [2023-01-27 19:29:36,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:29:36" (2/3) ... [2023-01-27 19:29:36,594 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45661d9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:29:36, skipping insertion in model container [2023-01-27 19:29:36,594 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:29:36" (3/3) ... [2023-01-27 19:29:36,595 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_87-lists_racefree.i [2023-01-27 19:29:36,606 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:29:36,607 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-01-27 19:29:36,607 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:29:36,696 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-01-27 19:29:36,721 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 229 transitions, 480 flow [2023-01-27 19:29:36,827 INFO L130 PetriNetUnfolder]: 54/427 cut-off events. [2023-01-27 19:29:36,828 INFO L131 PetriNetUnfolder]: For 8/16 co-relation queries the response was YES. [2023-01-27 19:29:36,836 INFO L83 FinitePrefix]: Finished finitePrefix Result has 447 conditions, 427 events. 54/427 cut-off events. For 8/16 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1691 event pairs, 0 based on Foata normal form. 0/363 useless extension candidates. Maximal degree in co-relation 219. Up to 8 conditions per place. [2023-01-27 19:29:36,836 INFO L82 GeneralOperation]: Start removeDead. Operand has 209 places, 229 transitions, 480 flow [2023-01-27 19:29:36,844 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 209 places, 227 transitions, 470 flow [2023-01-27 19:29:36,847 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:29:36,854 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 209 places, 227 transitions, 470 flow [2023-01-27 19:29:36,855 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 209 places, 227 transitions, 470 flow [2023-01-27 19:29:36,856 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 209 places, 227 transitions, 470 flow [2023-01-27 19:29:36,924 INFO L130 PetriNetUnfolder]: 50/415 cut-off events. [2023-01-27 19:29:36,925 INFO L131 PetriNetUnfolder]: For 4/8 co-relation queries the response was YES. [2023-01-27 19:29:36,927 INFO L83 FinitePrefix]: Finished finitePrefix Result has 431 conditions, 415 events. 50/415 cut-off events. For 4/8 co-relation queries the response was YES. Maximal size of possible extension queue 12. Compared 1613 event pairs, 0 based on Foata normal form. 0/351 useless extension candidates. Maximal degree in co-relation 207. Up to 8 conditions per place. [2023-01-27 19:29:36,936 INFO L119 LiptonReduction]: Number of co-enabled transitions 15336 [2023-01-27 19:29:41,445 INFO L134 LiptonReduction]: Checked pairs total: 24023 [2023-01-27 19:29:41,446 INFO L136 LiptonReduction]: Total number of compositions: 181 [2023-01-27 19:29:41,459 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:29:41,464 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;@1b22a16a, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:29:41,464 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-01-27 19:29:41,469 INFO L130 PetriNetUnfolder]: 1/20 cut-off events. [2023-01-27 19:29:41,470 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:29:41,470 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:29:41,470 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1] [2023-01-27 19:29:41,471 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 19:29:41,474 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:29:41,475 INFO L85 PathProgramCache]: Analyzing trace with hash -1192865422, now seen corresponding path program 1 times [2023-01-27 19:29:41,481 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:29:41,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [880263236] [2023-01-27 19:29:41,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:29:41,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:29:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:29:41,708 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:29:41,709 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:29:41,709 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [880263236] [2023-01-27 19:29:41,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [880263236] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:29:41,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:29:41,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 19:29:41,711 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [269915204] [2023-01-27 19:29:41,711 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:29:41,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 19:29:41,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:29:41,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 19:29:41,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 19:29:41,738 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 410 [2023-01-27 19:29:41,740 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 55 places, 66 transitions, 148 flow. Second operand has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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) [2023-01-27 19:29:41,740 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:29:41,740 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 410 [2023-01-27 19:29:41,741 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:29:42,168 INFO L130 PetriNetUnfolder]: 2806/4839 cut-off events. [2023-01-27 19:29:42,168 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2023-01-27 19:29:42,176 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9314 conditions, 4839 events. 2806/4839 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 28373 event pairs, 2599 based on Foata normal form. 240/4248 useless extension candidates. Maximal degree in co-relation 8300. Up to 4402 conditions per place. [2023-01-27 19:29:42,192 INFO L137 encePairwiseOnDemand]: 396/410 looper letters, 45 selfloop transitions, 2 changer transitions 0/56 dead transitions. [2023-01-27 19:29:42,192 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 57 places, 56 transitions, 222 flow [2023-01-27 19:29:42,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-01-27 19:29:42,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2023-01-27 19:29:42,203 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 650 transitions. [2023-01-27 19:29:42,206 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5284552845528455 [2023-01-27 19:29:42,207 INFO L72 ComplementDD]: Start complementDD. Operand 3 states and 650 transitions. [2023-01-27 19:29:42,207 INFO L73 IsDeterministic]: Start isDeterministic. Operand 3 states and 650 transitions. [2023-01-27 19:29:42,210 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:29:42,211 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 3 states and 650 transitions. [2023-01-27 19:29:42,216 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 4 states, 3 states have (on average 216.66666666666666) internal successors, (650), 3 states have internal predecessors, (650), 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) [2023-01-27 19:29:42,222 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 4 states, 4 states have (on average 410.0) internal successors, (1640), 4 states have internal predecessors, (1640), 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) [2023-01-27 19:29:42,223 INFO L81 ComplementDD]: Finished complementDD. Result has 4 states, 4 states have (on average 410.0) internal successors, (1640), 4 states have internal predecessors, (1640), 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) [2023-01-27 19:29:42,224 INFO L175 Difference]: Start difference. First operand has 55 places, 66 transitions, 148 flow. Second operand 3 states and 650 transitions. [2023-01-27 19:29:42,225 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 57 places, 56 transitions, 222 flow [2023-01-27 19:29:42,231 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 57 places, 56 transitions, 222 flow, removed 0 selfloop flow, removed 0 redundant places. [2023-01-27 19:29:42,232 INFO L231 Difference]: Finished difference. Result has 58 places, 56 transitions, 138 flow [2023-01-27 19:29:42,234 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=126, PETRI_DIFFERENCE_MINUEND_PLACES=55, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=55, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=1, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=3, PETRI_FLOW=138, PETRI_PLACES=58, PETRI_TRANSITIONS=56} [2023-01-27 19:29:42,237 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 3 predicate places. [2023-01-27 19:29:42,237 INFO L495 AbstractCegarLoop]: Abstraction has has 58 places, 56 transitions, 138 flow [2023-01-27 19:29:42,238 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 198.66666666666666) internal successors, (596), 3 states have internal predecessors, (596), 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) [2023-01-27 19:29:42,238 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:29:42,238 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1, 1, 1] [2023-01-27 19:29:42,239 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:29:42,239 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 19:29:42,240 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:29:42,240 INFO L85 PathProgramCache]: Analyzing trace with hash 450522637, now seen corresponding path program 1 times [2023-01-27 19:29:42,241 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:29:42,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028703615] [2023-01-27 19:29:42,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:29:42,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:29:42,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:29:42,344 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:29:42,344 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:29:42,344 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028703615] [2023-01-27 19:29:42,344 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028703615] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 19:29:42,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1024124997] [2023-01-27 19:29:42,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:29:42,345 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:29:42,345 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:29:42,348 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 19:29:42,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-01-27 19:29:42,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:29:42,467 INFO L263 TraceCheckSpWp]: Trace formula consists of 204 conjuncts, 3 conjunts are in the unsatisfiable core [2023-01-27 19:29:42,470 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 19:29:42,525 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:29:42,525 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 19:29:42,546 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:29:42,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1024124997] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 19:29:42,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 19:29:42,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 6 [2023-01-27 19:29:42,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547817799] [2023-01-27 19:29:42,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 19:29:42,548 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-01-27 19:29:42,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:29:42,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-01-27 19:29:42,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2023-01-27 19:29:42,550 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 410 [2023-01-27 19:29:42,551 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 58 places, 56 transitions, 138 flow. Second operand has 7 states, 7 states have (on average 198.57142857142858) internal successors, (1390), 7 states have internal predecessors, (1390), 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) [2023-01-27 19:29:42,551 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:29:42,551 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 410 [2023-01-27 19:29:42,551 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:29:42,938 INFO L130 PetriNetUnfolder]: 2806/4842 cut-off events. [2023-01-27 19:29:42,939 INFO L131 PetriNetUnfolder]: For 87/87 co-relation queries the response was YES. [2023-01-27 19:29:42,945 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9330 conditions, 4842 events. 2806/4842 cut-off events. For 87/87 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 28373 event pairs, 2599 based on Foata normal form. 0/4011 useless extension candidates. Maximal degree in co-relation 9317. Up to 4402 conditions per place. [2023-01-27 19:29:42,957 INFO L137 encePairwiseOnDemand]: 407/410 looper letters, 45 selfloop transitions, 5 changer transitions 0/59 dead transitions. [2023-01-27 19:29:42,957 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 63 places, 59 transitions, 250 flow [2023-01-27 19:29:42,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-01-27 19:29:42,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2023-01-27 19:29:42,959 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 1235 transitions. [2023-01-27 19:29:42,959 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.5020325203252033 [2023-01-27 19:29:42,960 INFO L72 ComplementDD]: Start complementDD. Operand 6 states and 1235 transitions. [2023-01-27 19:29:42,960 INFO L73 IsDeterministic]: Start isDeterministic. Operand 6 states and 1235 transitions. [2023-01-27 19:29:42,960 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:29:42,960 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 6 states and 1235 transitions. [2023-01-27 19:29:42,962 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 7 states, 6 states have (on average 205.83333333333334) internal successors, (1235), 6 states have internal predecessors, (1235), 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) [2023-01-27 19:29:42,965 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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) [2023-01-27 19:29:42,966 INFO L81 ComplementDD]: Finished complementDD. Result has 7 states, 7 states have (on average 410.0) internal successors, (2870), 7 states have internal predecessors, (2870), 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) [2023-01-27 19:29:42,966 INFO L175 Difference]: Start difference. First operand has 58 places, 56 transitions, 138 flow. Second operand 6 states and 1235 transitions. [2023-01-27 19:29:42,966 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 63 places, 59 transitions, 250 flow [2023-01-27 19:29:42,968 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 62 places, 59 transitions, 246 flow, removed 1 selfloop flow, removed 1 redundant places. [2023-01-27 19:29:42,969 INFO L231 Difference]: Finished difference. Result has 65 places, 59 transitions, 170 flow [2023-01-27 19:29:42,969 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=134, PETRI_DIFFERENCE_MINUEND_PLACES=57, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=56, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=3, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=6, PETRI_FLOW=170, PETRI_PLACES=65, PETRI_TRANSITIONS=59} [2023-01-27 19:29:42,969 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 10 predicate places. [2023-01-27 19:29:42,970 INFO L495 AbstractCegarLoop]: Abstraction has has 65 places, 59 transitions, 170 flow [2023-01-27 19:29:42,970 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 198.57142857142858) internal successors, (1390), 7 states have internal predecessors, (1390), 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) [2023-01-27 19:29:42,970 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:29:42,970 INFO L208 CegarLoopForPetriNet]: trace histogram [4, 2, 1, 1, 1, 1, 1] [2023-01-27 19:29:42,978 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-01-27 19:29:43,175 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:29:43,176 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 19:29:43,177 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:29:43,177 INFO L85 PathProgramCache]: Analyzing trace with hash -1554636750, now seen corresponding path program 2 times [2023-01-27 19:29:43,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:29:43,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566319679] [2023-01-27 19:29:43,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:29:43,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:29:43,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:29:43,332 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:29:43,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:29:43,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566319679] [2023-01-27 19:29:43,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566319679] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 19:29:43,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1282560859] [2023-01-27 19:29:43,333 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-01-27 19:29:43,333 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:29:43,333 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:29:43,335 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 19:29:43,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-01-27 19:29:43,458 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-01-27 19:29:43,459 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 19:29:43,460 INFO L263 TraceCheckSpWp]: Trace formula consists of 399 conjuncts, 6 conjunts are in the unsatisfiable core [2023-01-27 19:29:43,462 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 19:29:43,479 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:29:43,479 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 19:29:43,519 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:29:43,519 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1282560859] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 19:29:43,519 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 19:29:43,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 12 [2023-01-27 19:29:43,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1671417375] [2023-01-27 19:29:43,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 19:29:43,520 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2023-01-27 19:29:43,520 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:29:43,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2023-01-27 19:29:43,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2023-01-27 19:29:43,522 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 410 [2023-01-27 19:29:43,524 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 65 places, 59 transitions, 170 flow. Second operand has 13 states, 13 states have (on average 198.30769230769232) internal successors, (2578), 13 states have internal predecessors, (2578), 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) [2023-01-27 19:29:43,525 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:29:43,525 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 410 [2023-01-27 19:29:43,525 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:29:43,960 INFO L130 PetriNetUnfolder]: 2806/4848 cut-off events. [2023-01-27 19:29:43,960 INFO L131 PetriNetUnfolder]: For 107/107 co-relation queries the response was YES. [2023-01-27 19:29:43,967 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9367 conditions, 4848 events. 2806/4848 cut-off events. For 107/107 co-relation queries the response was YES. Maximal size of possible extension queue 159. Compared 28355 event pairs, 2599 based on Foata normal form. 6/4024 useless extension candidates. Maximal degree in co-relation 9308. Up to 4402 conditions per place. [2023-01-27 19:29:43,979 INFO L137 encePairwiseOnDemand]: 407/410 looper letters, 45 selfloop transitions, 11 changer transitions 0/65 dead transitions. [2023-01-27 19:29:43,980 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 76 places, 65 transitions, 318 flow [2023-01-27 19:29:43,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2023-01-27 19:29:43,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2023-01-27 19:29:43,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 2426 transitions. [2023-01-27 19:29:43,984 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.49308943089430896 [2023-01-27 19:29:43,984 INFO L72 ComplementDD]: Start complementDD. Operand 12 states and 2426 transitions. [2023-01-27 19:29:43,984 INFO L73 IsDeterministic]: Start isDeterministic. Operand 12 states and 2426 transitions. [2023-01-27 19:29:43,985 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:29:43,985 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 12 states and 2426 transitions. [2023-01-27 19:29:43,988 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 13 states, 12 states have (on average 202.16666666666666) internal successors, (2426), 12 states have internal predecessors, (2426), 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) [2023-01-27 19:29:43,994 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-01-27 19:29:43,996 INFO L81 ComplementDD]: Finished complementDD. Result has 13 states, 13 states have (on average 410.0) internal successors, (5330), 13 states have internal predecessors, (5330), 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) [2023-01-27 19:29:43,996 INFO L175 Difference]: Start difference. First operand has 65 places, 59 transitions, 170 flow. Second operand 12 states and 2426 transitions. [2023-01-27 19:29:43,996 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 76 places, 65 transitions, 318 flow [2023-01-27 19:29:43,999 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 75 places, 65 transitions, 304 flow, removed 6 selfloop flow, removed 1 redundant places. [2023-01-27 19:29:44,000 INFO L231 Difference]: Finished difference. Result has 81 places, 65 transitions, 240 flow [2023-01-27 19:29:44,000 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=156, PETRI_DIFFERENCE_MINUEND_PLACES=64, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=59, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=6, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=12, PETRI_FLOW=240, PETRI_PLACES=81, PETRI_TRANSITIONS=65} [2023-01-27 19:29:44,001 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 26 predicate places. [2023-01-27 19:29:44,001 INFO L495 AbstractCegarLoop]: Abstraction has has 81 places, 65 transitions, 240 flow [2023-01-27 19:29:44,003 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 198.30769230769232) internal successors, (2578), 13 states have internal predecessors, (2578), 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) [2023-01-27 19:29:44,003 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:29:44,003 INFO L208 CegarLoopForPetriNet]: trace histogram [10, 2, 1, 1, 1, 1, 1] [2023-01-27 19:29:44,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-01-27 19:29:44,208 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2023-01-27 19:29:44,209 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 19:29:44,209 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:29:44,209 INFO L85 PathProgramCache]: Analyzing trace with hash 279626322, now seen corresponding path program 3 times [2023-01-27 19:29:44,209 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:29:44,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829646605] [2023-01-27 19:29:44,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:29:44,210 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:29:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:29:44,531 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:29:44,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:29:44,531 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [829646605] [2023-01-27 19:29:44,531 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [829646605] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 19:29:44,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1543829356] [2023-01-27 19:29:44,532 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-01-27 19:29:44,532 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:29:44,532 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:29:44,533 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 19:29:44,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-01-27 19:32:38,168 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2023-01-27 19:32:38,168 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 19:32:38,205 INFO L263 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 12 conjunts are in the unsatisfiable core [2023-01-27 19:32:38,207 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 19:32:38,233 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:32:38,233 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 19:32:38,408 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 0 proven. 55 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:32:38,409 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1543829356] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 19:32:38,409 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 19:32:38,409 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 24 [2023-01-27 19:32:38,409 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [21657029] [2023-01-27 19:32:38,409 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 19:32:38,409 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2023-01-27 19:32:38,410 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:32:38,410 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2023-01-27 19:32:38,410 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2023-01-27 19:32:38,412 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 410 [2023-01-27 19:32:38,416 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 81 places, 65 transitions, 240 flow. Second operand has 25 states, 25 states have (on average 198.16) internal successors, (4954), 25 states have internal predecessors, (4954), 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) [2023-01-27 19:32:38,416 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:32:38,416 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 410 [2023-01-27 19:32:38,416 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:32:38,875 INFO L130 PetriNetUnfolder]: 2806/4860 cut-off events. [2023-01-27 19:32:38,876 INFO L131 PetriNetUnfolder]: For 550/550 co-relation queries the response was YES. [2023-01-27 19:32:38,884 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9451 conditions, 4860 events. 2806/4860 cut-off events. For 550/550 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 28413 event pairs, 2599 based on Foata normal form. 12/4042 useless extension candidates. Maximal degree in co-relation 9314. Up to 4402 conditions per place. [2023-01-27 19:32:38,897 INFO L137 encePairwiseOnDemand]: 407/410 looper letters, 45 selfloop transitions, 23 changer transitions 0/77 dead transitions. [2023-01-27 19:32:38,897 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 104 places, 77 transitions, 472 flow [2023-01-27 19:32:38,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2023-01-27 19:32:38,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2023-01-27 19:32:38,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 4808 transitions. [2023-01-27 19:32:38,905 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4886178861788618 [2023-01-27 19:32:38,905 INFO L72 ComplementDD]: Start complementDD. Operand 24 states and 4808 transitions. [2023-01-27 19:32:38,905 INFO L73 IsDeterministic]: Start isDeterministic. Operand 24 states and 4808 transitions. [2023-01-27 19:32:38,907 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:32:38,907 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 24 states and 4808 transitions. [2023-01-27 19:32:38,913 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 25 states, 24 states have (on average 200.33333333333334) internal successors, (4808), 24 states have internal predecessors, (4808), 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) [2023-01-27 19:32:38,922 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 25 states, 25 states have (on average 410.0) internal successors, (10250), 25 states have internal predecessors, (10250), 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) [2023-01-27 19:32:38,924 INFO L81 ComplementDD]: Finished complementDD. Result has 25 states, 25 states have (on average 410.0) internal successors, (10250), 25 states have internal predecessors, (10250), 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) [2023-01-27 19:32:38,924 INFO L175 Difference]: Start difference. First operand has 81 places, 65 transitions, 240 flow. Second operand 24 states and 4808 transitions. [2023-01-27 19:32:38,924 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 104 places, 77 transitions, 472 flow [2023-01-27 19:32:38,927 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 99 places, 77 transitions, 400 flow, removed 31 selfloop flow, removed 5 redundant places. [2023-01-27 19:32:38,928 INFO L231 Difference]: Finished difference. Result has 111 places, 77 transitions, 360 flow [2023-01-27 19:32:38,929 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=192, PETRI_DIFFERENCE_MINUEND_PLACES=76, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=65, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=12, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=24, PETRI_FLOW=360, PETRI_PLACES=111, PETRI_TRANSITIONS=77} [2023-01-27 19:32:38,930 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 56 predicate places. [2023-01-27 19:32:38,930 INFO L495 AbstractCegarLoop]: Abstraction has has 111 places, 77 transitions, 360 flow [2023-01-27 19:32:38,932 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 198.16) internal successors, (4954), 25 states have internal predecessors, (4954), 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) [2023-01-27 19:32:38,932 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:32:38,962 INFO L208 CegarLoopForPetriNet]: trace histogram [22, 2, 1, 1, 1, 1, 1] [2023-01-27 19:32:38,990 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-01-27 19:32:39,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:32:39,163 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 19:32:39,163 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:32:39,163 INFO L85 PathProgramCache]: Analyzing trace with hash 1192738450, now seen corresponding path program 4 times [2023-01-27 19:32:39,163 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:32:39,163 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1595495219] [2023-01-27 19:32:39,163 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:32:39,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:32:39,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:32:40,020 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:32:40,021 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:32:40,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1595495219] [2023-01-27 19:32:40,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1595495219] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 19:32:40,021 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1531131027] [2023-01-27 19:32:40,021 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-01-27 19:32:40,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:32:40,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:32:40,022 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 19:32:40,030 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-01-27 19:32:40,356 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-01-27 19:32:40,356 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-01-27 19:32:40,363 INFO L263 TraceCheckSpWp]: Trace formula consists of 1569 conjuncts, 24 conjunts are in the unsatisfiable core [2023-01-27 19:32:40,365 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2023-01-27 19:32:40,413 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:32:40,414 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2023-01-27 19:32:40,979 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 253 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:32:40,979 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1531131027] provided 0 perfect and 2 imperfect interpolant sequences [2023-01-27 19:32:40,979 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-01-27 19:32:40,979 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 48 [2023-01-27 19:32:40,979 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560108865] [2023-01-27 19:32:40,979 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-01-27 19:32:40,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-01-27 19:32:40,980 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:32:40,981 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-01-27 19:32:40,981 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-01-27 19:32:40,985 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 410 [2023-01-27 19:32:40,992 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 111 places, 77 transitions, 360 flow. Second operand has 49 states, 49 states have (on average 198.08163265306123) internal successors, (9706), 49 states have internal predecessors, (9706), 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) [2023-01-27 19:32:40,992 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:32:40,992 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 410 [2023-01-27 19:32:40,992 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:32:41,609 INFO L130 PetriNetUnfolder]: 2806/4884 cut-off events. [2023-01-27 19:32:41,609 INFO L131 PetriNetUnfolder]: For 5320/5320 co-relation queries the response was YES. [2023-01-27 19:32:41,619 INFO L83 FinitePrefix]: Finished finitePrefix Result has 9595 conditions, 4884 events. 2806/4884 cut-off events. For 5320/5320 co-relation queries the response was YES. Maximal size of possible extension queue 162. Compared 28401 event pairs, 2599 based on Foata normal form. 24/4078 useless extension candidates. Maximal degree in co-relation 9326. Up to 4402 conditions per place. [2023-01-27 19:32:41,626 INFO L137 encePairwiseOnDemand]: 407/410 looper letters, 45 selfloop transitions, 47 changer transitions 0/101 dead transitions. [2023-01-27 19:32:41,626 INFO L142 encePairwiseOnDemand]: Finished differencePairwiseOnDemand. Result has 158 places, 101 transitions, 736 flow [2023-01-27 19:32:41,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2023-01-27 19:32:41,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2023-01-27 19:32:41,638 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 9572 transitions. [2023-01-27 19:32:41,640 INFO L516 CegarLoopForPetriNet]: DFA transition density 0.4863821138211382 [2023-01-27 19:32:41,640 INFO L72 ComplementDD]: Start complementDD. Operand 48 states and 9572 transitions. [2023-01-27 19:32:41,640 INFO L73 IsDeterministic]: Start isDeterministic. Operand 48 states and 9572 transitions. [2023-01-27 19:32:41,643 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2023-01-27 19:32:41,643 INFO L117 ReachableStatesCopy]: Start reachableStatesCopy. Operand 48 states and 9572 transitions. [2023-01-27 19:32:41,664 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends has 49 states, 48 states have (on average 199.41666666666666) internal successors, (9572), 48 states have internal predecessors, (9572), 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) [2023-01-27 19:32:41,681 INFO L131 ReachableStatesCopy]: Finished reachableStatesCopy Result has 49 states, 49 states have (on average 410.0) internal successors, (20090), 49 states have internal predecessors, (20090), 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) [2023-01-27 19:32:41,684 INFO L81 ComplementDD]: Finished complementDD. Result has 49 states, 49 states have (on average 410.0) internal successors, (20090), 49 states have internal predecessors, (20090), 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) [2023-01-27 19:32:41,684 INFO L175 Difference]: Start difference. First operand has 111 places, 77 transitions, 360 flow. Second operand 48 states and 9572 transitions. [2023-01-27 19:32:41,684 INFO L82 GeneralOperation]: Start removeRedundantFlow. Operand has 158 places, 101 transitions, 736 flow [2023-01-27 19:32:41,689 INFO L88 GeneralOperation]: Finished removeRedundantFlow, result has has 147 places, 101 transitions, 592 flow, removed 61 selfloop flow, removed 11 redundant places. [2023-01-27 19:32:41,691 INFO L231 Difference]: Finished difference. Result has 171 places, 101 transitions, 600 flow [2023-01-27 19:32:41,691 INFO L264 CegarLoopForPetriNet]: {PETRI_ALPHABET=410, PETRI_DIFFERENCE_MINUEND_FLOW=264, PETRI_DIFFERENCE_MINUEND_PLACES=100, PETRI_DIFFERENCE_MINUEND_TRANSITIONS=77, PETRI_DIFFERENCE_SUBTRAHEND_LETTERS_WITH_MORE_CHANGERS_THAN_LOOPERS=24, PETRI_DIFFERENCE_SUBTRAHEND_LOOPER_ONLY_LETTERS=53, PETRI_DIFFERENCE_SUBTRAHEND_STATES=48, PETRI_FLOW=600, PETRI_PLACES=171, PETRI_TRANSITIONS=101} [2023-01-27 19:32:41,693 INFO L281 CegarLoopForPetriNet]: 55 programPoint places, 116 predicate places. [2023-01-27 19:32:41,693 INFO L495 AbstractCegarLoop]: Abstraction has has 171 places, 101 transitions, 600 flow [2023-01-27 19:32:41,695 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 198.08163265306123) internal successors, (9706), 49 states have internal predecessors, (9706), 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) [2023-01-27 19:32:41,695 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:32:41,695 INFO L208 CegarLoopForPetriNet]: trace histogram [46, 2, 1, 1, 1, 1, 1] [2023-01-27 19:32:41,714 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-01-27 19:32:41,904 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:32:41,905 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-01-27 19:32:41,905 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:32:41,905 INFO L85 PathProgramCache]: Analyzing trace with hash 553162514, now seen corresponding path program 5 times [2023-01-27 19:32:41,905 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:32:41,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [464180157] [2023-01-27 19:32:41,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:32:41,906 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:32:42,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:32:44,534 INFO L134 CoverageAnalysis]: Checked inductivity of 1083 backedges. 0 proven. 1081 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-01-27 19:32:44,534 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:32:44,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [464180157] [2023-01-27 19:32:44,535 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [464180157] provided 0 perfect and 1 imperfect interpolant sequences [2023-01-27 19:32:44,535 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777455955] [2023-01-27 19:32:44,535 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-01-27 19:32:44,535 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-01-27 19:32:44,535 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:32:44,536 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-01-27 19:32:44,569 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process Received shutdown request... [2023-01-27 19:44:15,571 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 19:44:15,571 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2023-01-27 19:44:16,585 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 [2023-01-27 19:44:16,771 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forcibly destroying the process [2023-01-27 19:44:16,806 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 137 [2023-01-27 19:44:16,808 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-01-27 19:44:16,808 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-01-27 19:44:16,808 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48] total 48 [2023-01-27 19:44:16,808 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696619989] [2023-01-27 19:44:16,808 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-01-27 19:44:16,808 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2023-01-27 19:44:16,809 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:44:16,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2023-01-27 19:44:16,810 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2023-01-27 19:44:16,814 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 197 out of 410 [2023-01-27 19:44:16,819 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 171 places, 101 transitions, 600 flow. Second operand has 49 states, 49 states have (on average 198.0408163265306) internal successors, (9704), 49 states have internal predecessors, (9704), 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) [2023-01-27 19:44:16,819 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:44:16,819 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 197 of 410 [2023-01-27 19:44:16,819 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand [2023-01-27 19:44:16,822 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-01-27 19:44:16,823 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-01-27 19:44:16,824 WARN L619 AbstractCegarLoop]: Verification canceled: while executing Executor. [2023-01-27 19:44:16,826 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 4 remaining) [2023-01-27 19:44:16,826 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 4 remaining) [2023-01-27 19:44:16,826 INFO L805 garLoopResultBuilder]: Registering result TIMEOUT for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 4 remaining) [2023-01-27 19:44:16,826 INFO L445 BasicCegarLoop]: Path program histogram: [5, 1] [2023-01-27 19:44:16,829 INFO L228 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2023-01-27 19:44:16,829 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2023-01-27 19:44:16,833 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.01 07:44:16 BasicIcfg [2023-01-27 19:44:16,833 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-01-27 19:44:16,834 INFO L158 Benchmark]: Toolchain (without parser) took 881196.03ms. Allocated memory was 358.6MB in the beginning and 692.1MB in the end (delta: 333.4MB). Free memory was 313.6MB in the beginning and 535.3MB in the end (delta: -221.7MB). Peak memory consumption was 113.7MB. Max. memory is 16.0GB. [2023-01-27 19:44:16,836 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 358.6MB. Free memory is still 305.1MB. There was no memory consumed. Max. memory is 16.0GB. [2023-01-27 19:44:16,836 INFO L158 Benchmark]: CACSL2BoogieTranslator took 388.40ms. Allocated memory is still 358.6MB. Free memory was 313.6MB in the beginning and 277.0MB in the end (delta: 36.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. [2023-01-27 19:44:16,836 INFO L158 Benchmark]: Boogie Procedure Inliner took 33.75ms. Allocated memory is still 358.6MB. Free memory was 277.0MB in the beginning and 274.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:44:16,836 INFO L158 Benchmark]: Boogie Preprocessor took 22.99ms. Allocated memory is still 358.6MB. Free memory was 274.0MB in the beginning and 271.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2023-01-27 19:44:16,836 INFO L158 Benchmark]: RCFGBuilder took 504.66ms. Allocated memory is still 358.6MB. Free memory was 271.9MB in the beginning and 246.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. [2023-01-27 19:44:16,838 INFO L158 Benchmark]: TraceAbstraction took 880242.44ms. Allocated memory was 358.6MB in the beginning and 692.1MB in the end (delta: 333.4MB). Free memory was 245.5MB in the beginning and 535.3MB in the end (delta: -289.8MB). Peak memory consumption was 44.5MB. Max. memory is 16.0GB. [2023-01-27 19:44:16,839 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 358.6MB. Free memory is still 305.1MB. There was no memory consumed. Max. memory is 16.0GB. * CACSL2BoogieTranslator took 388.40ms. Allocated memory is still 358.6MB. Free memory was 313.6MB in the beginning and 277.0MB in the end (delta: 36.6MB). Peak memory consumption was 37.7MB. Max. memory is 16.0GB. * Boogie Procedure Inliner took 33.75ms. Allocated memory is still 358.6MB. Free memory was 277.0MB in the beginning and 274.0MB in the end (delta: 2.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 22.99ms. Allocated memory is still 358.6MB. Free memory was 274.0MB in the beginning and 271.9MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 504.66ms. Allocated memory is still 358.6MB. Free memory was 271.9MB in the beginning and 246.7MB in the end (delta: 25.2MB). Peak memory consumption was 25.2MB. Max. memory is 16.0GB. * TraceAbstraction took 880242.44ms. Allocated memory was 358.6MB in the beginning and 692.1MB in the end (delta: 333.4MB). Free memory was 245.5MB in the beginning and 535.3MB in the end (delta: -289.8MB). Peak memory consumption was 44.5MB. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 4.6s, 209 PlacesBefore, 55 PlacesAfterwards, 227 TransitionsBefore, 66 TransitionsAfterwards, 15336 CoEnabledTransitionPairs, 6 FixpointIterations, 44 TrivialSequentialCompositions, 110 ConcurrentSequentialCompositions, 2 TrivialYvCompositions, 18 ConcurrentYvCompositions, 7 ChoiceCompositions, 181 TotalNumberOfCompositions, 24023 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 13906, independent: 13575, independent conditional: 0, independent unconditional: 13575, dependent: 331, dependent conditional: 0, dependent unconditional: 331, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 7829, independent: 7744, independent conditional: 0, independent unconditional: 7744, dependent: 85, dependent conditional: 0, dependent unconditional: 85, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 13906, independent: 5831, independent conditional: 0, independent unconditional: 5831, dependent: 246, dependent conditional: 0, dependent unconditional: 246, unknown: 7829, unknown conditional: 0, unknown unconditional: 7829] , Statistics on independence cache: Total cache size (in pairs): 464, Positive cache size: 428, Positive conditional cache size: 0, Positive unconditional cache size: 428, Negative cache size: 36, Negative conditional cache size: 0, Negative unconditional cache size: 36, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0 - TimeoutResultAtElement [Line: 1049]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - TimeoutResultAtElement [Line: 999]: Timeout (TraceAbstraction) Unable to prove that call to reach_error is unreachable Cancelled while executing Executor. - TimeoutResultAtElement [Line: 1050]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while executing Executor. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 315 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: 880.1s, OverallIterations: 6, TraceHistogramMax: 46, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 4.7s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 0 SdHoareTripleChecker+Valid, 0.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 0 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.5s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 0 mSDsCounter, 4 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 754 IncrementalHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 4 mSolverCounterUnsat, 0 mSDtfsCounter, 754 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 217 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 134 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 148 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=600occurred in iteration=5, InterpolantAutomatonStates: 93, 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: 0.2s SsaConstructionTime, 173.9s SatisfiabilityAnalysisTime, 4.8s InterpolantComputationTime, 190 NumberOfCodeBlocks, 190 NumberOfCodeBlocksAsserted, 17 NumberOfCheckSat, 241 ConstructedInterpolants, 0 QuantifiedInterpolants, 583 SizeOfPredicates, 0 NumberOfNonLiveVariables, 2961 ConjunctsInSsa, 45 ConjunctsInUnsatCore, 14 InterpolantComputations, 1 PerfectInterpolantSequences, 28/2066 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown