/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_85-list2_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-b8dbc81 [2023-01-27 19:28:37,206 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-01-27 19:28:37,221 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-01-27 19:28:37,277 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2023-01-27 19:28:37,277 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2023-01-27 19:28:37,278 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2023-01-27 19:28:37,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2023-01-27 19:28:37,280 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2023-01-27 19:28:37,281 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2023-01-27 19:28:37,281 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2023-01-27 19:28:37,282 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2023-01-27 19:28:37,283 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2023-01-27 19:28:37,283 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-01-27 19:28:37,284 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-01-27 19:28:37,284 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-01-27 19:28:37,285 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-01-27 19:28:37,286 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-01-27 19:28:37,286 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-01-27 19:28:37,288 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-01-27 19:28:37,297 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-01-27 19:28:37,299 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-01-27 19:28:37,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-01-27 19:28:37,303 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-01-27 19:28:37,304 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-01-27 19:28:37,306 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-01-27 19:28:37,310 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-01-27 19:28:37,311 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-01-27 19:28:37,311 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-01-27 19:28:37,321 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 19:28:37,346 INFO L113 SettingsManager]: Loading preferences was successful [2023-01-27 19:28:37,346 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-01-27 19:28:37,347 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-01-27 19:28:37,347 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-01-27 19:28:37,347 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-01-27 19:28:37,348 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-01-27 19:28:37,348 INFO L138 SettingsManager]: * Use SBE=true [2023-01-27 19:28:37,348 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-01-27 19:28:37,348 INFO L138 SettingsManager]: * sizeof long=4 [2023-01-27 19:28:37,348 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-01-27 19:28:37,348 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-01-27 19:28:37,348 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-01-27 19:28:37,348 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-01-27 19:28:37,348 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-01-27 19:28:37,348 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-01-27 19:28:37,348 INFO L138 SettingsManager]: * sizeof long double=12 [2023-01-27 19:28:37,349 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-01-27 19:28:37,349 INFO L138 SettingsManager]: * Use constant arrays=true [2023-01-27 19:28:37,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-01-27 19:28:37,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-01-27 19:28:37,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-01-27 19:28:37,349 INFO L138 SettingsManager]: * To the following directory=./dump/ [2023-01-27 19:28:37,349 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-01-27 19:28:37,349 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:28:37,349 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-01-27 19:28:37,349 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-01-27 19:28:37,350 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-01-27 19:28:37,350 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-01-27 19:28:37,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-01-27 19:28:37,350 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-01-27 19:28:37,350 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-01-27 19:28:37,350 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-01-27 19:28:37,633 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-01-27 19:28:37,663 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-01-27 19:28:37,665 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-01-27 19:28:37,666 INFO L271 PluginConnector]: Initializing CDTParser... [2023-01-27 19:28:37,667 INFO L275 PluginConnector]: CDTParser initialized [2023-01-27 19:28:37,668 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-01-27 19:28:39,220 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-01-27 19:28:39,505 INFO L351 CDTParser]: Found 1 translation units. [2023-01-27 19:28:39,505 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_85-list2_racefree.i [2023-01-27 19:28:39,534 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58e4cb895/21d2d7fb99864730872a2e236d4675ef/FLAG959b9a89a [2023-01-27 19:28:39,576 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/58e4cb895/21d2d7fb99864730872a2e236d4675ef [2023-01-27 19:28:39,579 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-01-27 19:28:39,580 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2023-01-27 19:28:39,581 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-01-27 19:28:39,581 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-01-27 19:28:39,586 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-01-27 19:28:39,587 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:28:39" (1/1) ... [2023-01-27 19:28:39,587 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bef96e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:39, skipping insertion in model container [2023-01-27 19:28:39,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.01 07:28:39" (1/1) ... [2023-01-27 19:28:39,609 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-01-27 19:28:39,712 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-01-27 19:28:40,221 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_85-list2_racefree.i[47038,47051] [2023-01-27 19:28:40,266 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:28:40,279 INFO L203 MainTranslator]: Completed pre-run [2023-01-27 19:28:40,310 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_85-list2_racefree.i[47038,47051] [2023-01-27 19:28:40,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-01-27 19:28:40,433 INFO L208 MainTranslator]: Completed translation [2023-01-27 19:28:40,434 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40 WrapperNode [2023-01-27 19:28:40,434 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-01-27 19:28:40,435 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-01-27 19:28:40,435 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-01-27 19:28:40,435 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2023-01-27 19:28:40,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,493 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,534 INFO L138 Inliner]: procedures = 279, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 344 [2023-01-27 19:28:40,534 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-01-27 19:28:40,535 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-01-27 19:28:40,535 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-01-27 19:28:40,535 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-01-27 19:28:40,544 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,548 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,548 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,576 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,591 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,593 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,594 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,613 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-01-27 19:28:40,613 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-01-27 19:28:40,614 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-01-27 19:28:40,614 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-01-27 19:28:40,614 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (1/1) ... [2023-01-27 19:28:40,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-01-27 19:28:40,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-01-27 19:28:40,654 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 19:28:40,672 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 19:28:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-01-27 19:28:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2023-01-27 19:28:40,686 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-01-27 19:28:40,687 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-01-27 19:28:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-01-27 19:28:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-01-27 19:28:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-01-27 19:28:40,688 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-01-27 19:28:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-01-27 19:28:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-01-27 19:28:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-01-27 19:28:40,688 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-01-27 19:28:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2023-01-27 19:28:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure t3_fun [2023-01-27 19:28:40,689 INFO L138 BoogieDeclarations]: Found implementation of procedure t3_fun [2023-01-27 19:28:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-01-27 19:28:40,689 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-01-27 19:28:40,689 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-01-27 19:28:40,691 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 19:28:40,962 INFO L236 CfgBuilder]: Building ICFG [2023-01-27 19:28:40,964 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-01-27 19:28:41,531 INFO L277 CfgBuilder]: Performing block encoding [2023-01-27 19:28:41,537 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-01-27 19:28:41,538 INFO L302 CfgBuilder]: Removed 28 assume(true) statements. [2023-01-27 19:28:41,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:28:41 BoogieIcfgContainer [2023-01-27 19:28:41,539 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-01-27 19:28:41,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-01-27 19:28:41,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-01-27 19:28:41,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-01-27 19:28:41,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.01 07:28:39" (1/3) ... [2023-01-27 19:28:41,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df0c7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:28:41, skipping insertion in model container [2023-01-27 19:28:41,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.01 07:28:40" (2/3) ... [2023-01-27 19:28:41,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4df0c7c8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.01 07:28:41, skipping insertion in model container [2023-01-27 19:28:41,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.01 07:28:41" (3/3) ... [2023-01-27 19:28:41,558 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_85-list2_racefree.i [2023-01-27 19:28:41,576 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-01-27 19:28:41,576 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2023-01-27 19:28:41,576 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-01-27 19:28:41,742 INFO L144 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2023-01-27 19:28:41,806 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 312 places, 350 transitions, 742 flow [2023-01-27 19:28:42,109 INFO L130 PetriNetUnfolder]: 164/1071 cut-off events. [2023-01-27 19:28:42,109 INFO L131 PetriNetUnfolder]: For 36/61 co-relation queries the response was YES. [2023-01-27 19:28:42,142 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 1071 events. 164/1071 cut-off events. For 36/61 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6692 event pairs, 0 based on Foata normal form. 0/895 useless extension candidates. Maximal degree in co-relation 557. Up to 16 conditions per place. [2023-01-27 19:28:42,142 INFO L82 GeneralOperation]: Start removeDead. Operand has 312 places, 350 transitions, 742 flow [2023-01-27 19:28:42,156 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 312 places, 350 transitions, 742 flow [2023-01-27 19:28:42,159 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:28:42,178 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 312 places, 350 transitions, 742 flow [2023-01-27 19:28:42,180 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 312 places, 350 transitions, 742 flow [2023-01-27 19:28:42,180 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 312 places, 350 transitions, 742 flow [2023-01-27 19:28:42,431 INFO L130 PetriNetUnfolder]: 164/1071 cut-off events. [2023-01-27 19:28:42,431 INFO L131 PetriNetUnfolder]: For 36/61 co-relation queries the response was YES. [2023-01-27 19:28:42,468 INFO L83 FinitePrefix]: Finished finitePrefix Result has 1132 conditions, 1071 events. 164/1071 cut-off events. For 36/61 co-relation queries the response was YES. Maximal size of possible extension queue 35. Compared 6692 event pairs, 0 based on Foata normal form. 0/895 useless extension candidates. Maximal degree in co-relation 557. Up to 16 conditions per place. [2023-01-27 19:28:42,530 INFO L119 LiptonReduction]: Number of co-enabled transitions 51176 [2023-01-27 19:29:04,849 INFO L134 LiptonReduction]: Checked pairs total: 98696 [2023-01-27 19:29:04,850 INFO L136 LiptonReduction]: Total number of compositions: 276 [2023-01-27 19:29:04,860 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:29:04,865 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;@5c7d31b9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:29:04,865 INFO L358 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2023-01-27 19:29:04,869 INFO L130 PetriNetUnfolder]: 2/27 cut-off events. [2023-01-27 19:29:04,870 INFO L131 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2023-01-27 19:29:04,871 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:29:04,871 INFO L208 CegarLoopForPetriNet]: trace histogram [2, 1, 1, 1, 1] [2023-01-27 19:29:04,871 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 4 more)] === [2023-01-27 19:29:04,875 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:29:04,875 INFO L85 PathProgramCache]: Analyzing trace with hash 2134265376, now seen corresponding path program 1 times [2023-01-27 19:29:04,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:29:04,884 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124704014] [2023-01-27 19:29:04,884 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:29:04,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:29:05,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:29:05,068 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-01-27 19:29:05,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-01-27 19:29:05,130 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-01-27 19:29:05,131 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-01-27 19:29:05,132 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (6 of 7 remaining) [2023-01-27 19:29:05,134 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (5 of 7 remaining) [2023-01-27 19:29:05,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (4 of 7 remaining) [2023-01-27 19:29:05,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 7 remaining) [2023-01-27 19:29:05,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr2INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (2 of 7 remaining) [2023-01-27 19:29:05,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 7 remaining) [2023-01-27 19:29:05,135 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 7 remaining) [2023-01-27 19:29:05,136 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-01-27 19:29:05,136 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-01-27 19:29:05,139 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-01-27 19:29:05,139 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-01-27 19:29:05,340 INFO L144 ThreadInstanceAdder]: Constructed 18 joinOtherThreadTransitions. [2023-01-27 19:29:05,345 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 494 places, 565 transitions, 1220 flow [2023-01-27 19:29:07,574 INFO L130 PetriNetUnfolder]: 1130/5483 cut-off events. [2023-01-27 19:29:07,574 INFO L131 PetriNetUnfolder]: For 602/702 co-relation queries the response was YES. [2023-01-27 19:29:07,755 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6157 conditions, 5483 events. 1130/5483 cut-off events. For 602/702 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 50281 event pairs, 22 based on Foata normal form. 0/4621 useless extension candidates. Maximal degree in co-relation 3440. Up to 192 conditions per place. [2023-01-27 19:29:07,755 INFO L82 GeneralOperation]: Start removeDead. Operand has 494 places, 565 transitions, 1220 flow [2023-01-27 19:29:07,814 INFO L88 GeneralOperation]: Finished RemoveDead, result has has 494 places, 565 transitions, 1220 flow [2023-01-27 19:29:07,814 INFO L124 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2023-01-27 19:29:07,815 INFO L131 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 494 places, 565 transitions, 1220 flow [2023-01-27 19:29:07,815 INFO L113 LiptonReduction]: Starting Lipton reduction on Petri net that has 494 places, 565 transitions, 1220 flow [2023-01-27 19:29:07,815 INFO L73 FinitePrefix]: Start finitePrefix. Operand has 494 places, 565 transitions, 1220 flow [2023-01-27 19:29:09,379 INFO L130 PetriNetUnfolder]: 1130/5483 cut-off events. [2023-01-27 19:29:09,379 INFO L131 PetriNetUnfolder]: For 602/702 co-relation queries the response was YES. [2023-01-27 19:29:09,533 INFO L83 FinitePrefix]: Finished finitePrefix Result has 6157 conditions, 5483 events. 1130/5483 cut-off events. For 602/702 co-relation queries the response was YES. Maximal size of possible extension queue 154. Compared 50281 event pairs, 22 based on Foata normal form. 0/4621 useless extension candidates. Maximal degree in co-relation 3440. Up to 192 conditions per place. [2023-01-27 19:29:10,118 INFO L119 LiptonReduction]: Number of co-enabled transitions 193052 [2023-01-27 19:29:30,600 INFO L134 LiptonReduction]: Checked pairs total: 408315 [2023-01-27 19:29:30,601 INFO L136 LiptonReduction]: Total number of compositions: 427 [2023-01-27 19:29:30,604 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-01-27 19:29:30,605 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;@5c7d31b9, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-01-27 19:29:30,605 INFO L358 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2023-01-27 19:29:30,621 INFO L130 PetriNetUnfolder]: 22/140 cut-off events. [2023-01-27 19:29:30,621 INFO L131 PetriNetUnfolder]: For 9/11 co-relation queries the response was YES. [2023-01-27 19:29:30,621 INFO L200 CegarLoopForPetriNet]: Found error trace [2023-01-27 19:29:30,621 INFO L208 CegarLoopForPetriNet]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-01-27 19:29:30,621 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION === [t2_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t3_funErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 6 more)] === [2023-01-27 19:29:30,621 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-01-27 19:29:30,622 INFO L85 PathProgramCache]: Analyzing trace with hash 70532104, now seen corresponding path program 1 times [2023-01-27 19:29:30,622 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-01-27 19:29:30,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678021124] [2023-01-27 19:29:30,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-01-27 19:29:30,622 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-01-27 19:29:30,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-01-27 19:29:30,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-01-27 19:29:30,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-01-27 19:29:30,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [678021124] [2023-01-27 19:29:30,824 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [678021124] provided 1 perfect and 0 imperfect interpolant sequences [2023-01-27 19:29:30,824 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-01-27 19:29:30,824 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-01-27 19:29:30,824 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [902506628] [2023-01-27 19:29:30,825 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-01-27 19:29:30,832 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-01-27 19:29:30,840 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-01-27 19:29:30,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-01-27 19:29:30,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-01-27 19:29:30,877 INFO L471 CegarLoopForPetriNet]: Number of universal loopers: 476 out of 992 [2023-01-27 19:29:30,882 INFO L100 encePairwiseOnDemand]: Start differencePairwiseOnDemand. First operand has 147 places, 204 transitions, 498 flow. Second operand has 3 states, 3 states have (on average 479.6666666666667) internal successors, (1439), 3 states have internal predecessors, (1439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-01-27 19:29:30,882 INFO L109 encePairwiseOnDemand]: Universal subtrahend loopers provided by user. [2023-01-27 19:29:30,882 INFO L110 encePairwiseOnDemand]: Number of universal subtrahend loopers: 476 of 992 [2023-01-27 19:29:30,883 INFO L73 FinitePrefix]: Start finitePrefix. Operand will be constructed on-demand