./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_04-munge_racefree.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version 20174008 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_04-munge_racefree.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! data-race) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b --- Real Ultimate output --- This is Ultimate 0.2.3-?-2017400-m [2023-11-24 12:03:37,127 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 12:03:37,189 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-11-24 12:03:37,193 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 12:03:37,194 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 12:03:37,211 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 12:03:37,212 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 12:03:37,213 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 12:03:37,213 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 12:03:37,214 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 12:03:37,214 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 12:03:37,214 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 12:03:37,215 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 12:03:37,215 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 12:03:37,216 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 12:03:37,216 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 12:03:37,216 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 12:03:37,217 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 12:03:37,217 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 12:03:37,218 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 12:03:37,218 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 12:03:37,222 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 12:03:37,222 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 12:03:37,223 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 12:03:37,226 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 12:03:37,226 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 12:03:37,227 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 12:03:37,227 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 12:03:37,227 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 12:03:37,227 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-24 12:03:37,228 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 12:03:37,229 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 12:03:37,229 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 12:03:37,229 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 12:03:37,229 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 12:03:37,229 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 12:03:37,230 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 12:03:37,230 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 12:03:37,230 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 12:03:37,230 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 12:03:37,230 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 12:03:37,232 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 12:03:37,232 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 12:03:37,233 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 50de8acec85b0b2508f1f33521d9ab6717fa1b5141d6b9e2d08fcb4af894112b [2023-11-24 12:03:37,450 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 12:03:37,474 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 12:03:37,476 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 12:03:37,477 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 12:03:37,478 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 12:03:37,479 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_04-munge_racefree.i [2023-11-24 12:03:38,711 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 12:03:38,955 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 12:03:38,955 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_04-munge_racefree.i [2023-11-24 12:03:38,968 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f7d6c7bd4/39f4bdc154464ab19ae2dfc0fa46d83a/FLAGaf20d70e2 [2023-11-24 12:03:38,981 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/f7d6c7bd4/39f4bdc154464ab19ae2dfc0fa46d83a [2023-11-24 12:03:38,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 12:03:38,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 12:03:38,986 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 12:03:38,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 12:03:38,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 12:03:38,992 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:03:38" (1/1) ... [2023-11-24 12:03:38,993 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@76d7d2eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:38, skipping insertion in model container [2023-11-24 12:03:38,993 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 12:03:38" (1/1) ... [2023-11-24 12:03:39,050 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 12:03:39,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 12:03:39,478 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 12:03:39,529 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 12:03:39,573 INFO L206 MainTranslator]: Completed translation [2023-11-24 12:03:39,574 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39 WrapperNode [2023-11-24 12:03:39,574 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 12:03:39,575 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 12:03:39,576 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 12:03:39,576 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 12:03:39,582 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,613 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,649 INFO L138 Inliner]: procedures = 173, calls = 42, calls flagged for inlining = 6, calls inlined = 8, statements flattened = 273 [2023-11-24 12:03:39,650 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 12:03:39,656 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 12:03:39,657 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 12:03:39,657 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 12:03:39,666 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,667 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,677 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,678 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,690 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,706 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,708 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,709 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,712 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 12:03:39,714 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 12:03:39,714 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 12:03:39,715 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 12:03:39,715 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (1/1) ... [2023-11-24 12:03:39,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 12:03:39,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:39,748 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-11-24 12:03:39,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-11-24 12:03:39,797 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 12:03:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure t2_fun [2023-11-24 12:03:39,798 INFO L138 BoogieDeclarations]: Found implementation of procedure t2_fun [2023-11-24 12:03:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 12:03:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2023-11-24 12:03:39,798 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 12:03:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 12:03:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure t1_fun [2023-11-24 12:03:39,799 INFO L138 BoogieDeclarations]: Found implementation of procedure t1_fun [2023-11-24 12:03:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 12:03:39,799 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 12:03:39,801 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2023-11-24 12:03:39,801 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 12:03:39,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 12:03:39,803 WARN L213 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-11-24 12:03:39,936 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 12:03:39,939 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 12:03:40,269 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 12:03:40,321 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 12:03:40,321 INFO L309 CfgBuilder]: Removed 24 assume(true) statements. [2023-11-24 12:03:40,323 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:40 BoogieIcfgContainer [2023-11-24 12:03:40,323 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 12:03:40,325 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 12:03:40,326 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 12:03:40,329 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 12:03:40,329 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 12:03:38" (1/3) ... [2023-11-24 12:03:40,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad04d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:03:40, skipping insertion in model container [2023-11-24 12:03:40,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 12:03:39" (2/3) ... [2023-11-24 12:03:40,330 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ad04d9e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 12:03:40, skipping insertion in model container [2023-11-24 12:03:40,330 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 12:03:40" (3/3) ... [2023-11-24 12:03:40,332 INFO L112 eAbstractionObserver]: Analyzing ICFG 28-race_reach_04-munge_racefree.i [2023-11-24 12:03:40,339 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 12:03:40,349 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 12:03:40,349 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2023-11-24 12:03:40,349 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 12:03:40,452 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-11-24 12:03:40,493 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 12:03:40,494 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 12:03:40,494 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:40,500 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 12:03:40,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-11-24 12:03:40,545 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 12:03:40,558 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of1ForFork1 ======== [2023-11-24 12:03:40,565 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@ad75cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 12:03:40,565 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-24 12:03:41,265 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t2_funErr2ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 12:03:41,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:41,271 INFO L85 PathProgramCache]: Analyzing trace with hash -2117160261, now seen corresponding path program 1 times [2023-11-24 12:03:41,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:41,280 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [686088244] [2023-11-24 12:03:41,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:41,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:41,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:41,696 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 12:03:41,697 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 12:03:41,697 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [686088244] [2023-11-24 12:03:41,698 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [686088244] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 12:03:41,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983122985] [2023-11-24 12:03:41,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:41,698 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:41,699 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:41,745 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 12:03:41,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-11-24 12:03:41,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:41,859 INFO L262 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 1 conjunts are in the unsatisfiable core [2023-11-24 12:03:41,864 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 12:03:41,878 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 12:03:41,878 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 12:03:41,878 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983122985] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 12:03:41,878 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 12:03:41,879 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 5 [2023-11-24 12:03:41,881 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [911468685] [2023-11-24 12:03:41,881 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 12:03:41,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 12:03:41,888 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 12:03:41,916 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 12:03:41,917 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-11-24 12:03:41,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:41,922 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 12:03:41,922 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 35.0) internal successors, (70), 2 states have internal predecessors, (70), 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) [2023-11-24 12:03:41,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:42,036 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:42,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-11-24 12:03:42,252 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-11-24 12:03:42,253 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t2_funErr0ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 12:03:42,253 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:42,253 INFO L85 PathProgramCache]: Analyzing trace with hash -1315190723, now seen corresponding path program 1 times [2023-11-24 12:03:42,253 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:42,254 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [313390112] [2023-11-24 12:03:42,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:42,254 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:42,425 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 12:03:42,425 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 12:03:42,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [313390112] [2023-11-24 12:03:42,426 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [313390112] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 12:03:42,426 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [64889759] [2023-11-24 12:03:42,426 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:42,426 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:42,427 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:42,433 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 12:03:42,455 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-11-24 12:03:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:42,576 INFO L262 TraceCheckSpWp]: Trace formula consists of 180 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 12:03:42,580 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 12:03:42,602 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 12:03:42,603 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 12:03:42,603 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [64889759] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 12:03:42,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 12:03:42,604 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-24 12:03:42,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1504182005] [2023-11-24 12:03:42,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 12:03:42,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 12:03:42,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 12:03:42,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 12:03:42,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 12:03:42,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:42,609 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 12:03:42,620 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 34.5) internal successors, (69), 3 states have internal predecessors, (69), 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) [2023-11-24 12:03:42,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:42,620 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:42,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:42,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:42,827 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-11-24 12:03:43,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:43,021 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t2_funErr1ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 12:03:43,021 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:43,021 INFO L85 PathProgramCache]: Analyzing trace with hash -143065085, now seen corresponding path program 1 times [2023-11-24 12:03:43,021 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:43,022 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903459513] [2023-11-24 12:03:43,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:43,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:43,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:43,148 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 12:03:43,148 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 12:03:43,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903459513] [2023-11-24 12:03:43,152 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903459513] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 12:03:43,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586495047] [2023-11-24 12:03:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:43,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:43,155 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:43,156 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 12:03:43,178 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-11-24 12:03:43,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:43,268 INFO L262 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 12:03:43,270 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 12:03:43,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 12:03:43,288 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 12:03:43,288 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586495047] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 12:03:43,289 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 12:03:43,289 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-24 12:03:43,292 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [42696165] [2023-11-24 12:03:43,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 12:03:43,293 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 12:03:43,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 12:03:43,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 12:03:43,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 12:03:43,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:43,296 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 12:03:43,297 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 37.0) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-11-24 12:03:43,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:43,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:43,301 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:43,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:43,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:43,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:43,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-11-24 12:03:43,672 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:43,672 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 12:03:43,673 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:43,673 INFO L85 PathProgramCache]: Analyzing trace with hash -345477718, now seen corresponding path program 1 times [2023-11-24 12:03:43,673 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:43,673 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312140061] [2023-11-24 12:03:43,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:43,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:43,760 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 12:03:43,760 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 12:03:43,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1312140061] [2023-11-24 12:03:43,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1312140061] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 12:03:43,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536505556] [2023-11-24 12:03:43,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:43,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:43,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:43,762 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 12:03:43,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-11-24 12:03:43,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:43,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 3 conjunts are in the unsatisfiable core [2023-11-24 12:03:43,881 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 12:03:43,896 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-11-24 12:03:43,896 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-11-24 12:03:43,896 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536505556] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 12:03:43,897 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-11-24 12:03:43,897 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2023-11-24 12:03:43,897 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [332445378] [2023-11-24 12:03:43,897 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 12:03:43,898 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 12:03:43,899 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 12:03:43,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 12:03:43,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-11-24 12:03:43,900 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:43,902 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 12:03:43,902 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 44.0) internal successors, (88), 3 states have internal predecessors, (88), 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) [2023-11-24 12:03:43,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:43,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:43,902 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:43,903 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:44,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:44,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:44,090 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:44,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:44,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-11-24 12:03:44,305 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:44,306 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t2_funErr3ASSERT_VIOLATIONDATA_RACE === [t2_funErr4ASSERT_VIOLATIONDATA_RACE, t2_funErr0ASSERT_VIOLATIONDATA_RACE, t2_funErr2ASSERT_VIOLATIONDATA_RACE, t2_funErr1ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 12:03:44,306 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:44,307 INFO L85 PathProgramCache]: Analyzing trace with hash 860288703, now seen corresponding path program 1 times [2023-11-24 12:03:44,307 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:44,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257002300] [2023-11-24 12:03:44,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:44,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:44,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:44,430 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 12:03:44,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 12:03:44,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257002300] [2023-11-24 12:03:44,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257002300] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 12:03:44,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2071585126] [2023-11-24 12:03:44,434 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:44,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:44,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:44,435 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 12:03:44,437 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-11-24 12:03:44,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:44,586 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 12:03:44,592 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 12:03:44,624 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 12:03:44,628 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 12:03:44,694 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 12:03:44,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2071585126] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 12:03:44,695 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 12:03:44,695 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-24 12:03:44,695 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728080097] [2023-11-24 12:03:44,696 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 12:03:44,696 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 12:03:44,696 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 12:03:44,697 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 12:03:44,697 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-24 12:03:44,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:44,698 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 12:03:44,699 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.0) internal successors, (130), 10 states have internal predecessors, (130), 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) [2023-11-24 12:03:44,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:44,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:44,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:44,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:44,699 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:44,769 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:44,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 12:03:44,790 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2023-11-24 12:03:44,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-11-24 12:03:44,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2023-11-24 12:03:44,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-11-24 12:03:44,791 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t2_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-11-24 12:03:44,810 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-11-24 12:03:45,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:45,013 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-24 12:03:45,015 INFO L307 ceAbstractionStarter]: Result for error location t2_funThread1of1ForFork1 was SAFE,SAFE,SAFE,SAFE,SAFE (1/3) [2023-11-24 12:03:45,021 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 12:03:45,021 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 12:03:45,021 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:45,026 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 12:03:45,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (8)] Waiting until timeout for monitored process [2023-11-24 12:03:45,030 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 12:03:45,031 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t1_funThread1of1ForFork0 ======== [2023-11-24 12:03:45,031 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@ad75cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 12:03:45,031 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-24 12:03:45,176 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting t1_funErr2ASSERT_VIOLATIONDATA_RACE === [t1_funErr4ASSERT_VIOLATIONDATA_RACE, t1_funErr0ASSERT_VIOLATIONDATA_RACE, t1_funErr2ASSERT_VIOLATIONDATA_RACE, t1_funErr1ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 12:03:45,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:45,177 INFO L85 PathProgramCache]: Analyzing trace with hash -2041901159, now seen corresponding path program 1 times [2023-11-24 12:03:45,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:45,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927650697] [2023-11-24 12:03:45,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:45,178 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:45,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:45,198 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 12:03:45,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 12:03:45,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1927650697] [2023-11-24 12:03:45,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1927650697] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 12:03:45,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 12:03:45,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 12:03:45,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890380523] [2023-11-24 12:03:45,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 12:03:45,202 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 12:03:45,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 12:03:45,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 12:03:45,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 12:03:45,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,205 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 12:03:45,205 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 28.0) internal successors, (56), 2 states have internal predecessors, (56), 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) [2023-11-24 12:03:45,205 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,223 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-11-24 12:03:45,223 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting t1_funErr0ASSERT_VIOLATIONDATA_RACE === [t1_funErr4ASSERT_VIOLATIONDATA_RACE, t1_funErr0ASSERT_VIOLATIONDATA_RACE, t1_funErr2ASSERT_VIOLATIONDATA_RACE, t1_funErr1ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 12:03:45,223 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:45,223 INFO L85 PathProgramCache]: Analyzing trace with hash -481479020, now seen corresponding path program 1 times [2023-11-24 12:03:45,223 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:45,224 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644951368] [2023-11-24 12:03:45,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:45,224 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:45,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:45,250 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 12:03:45,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 12:03:45,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [644951368] [2023-11-24 12:03:45,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [644951368] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 12:03:45,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 12:03:45,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 12:03:45,251 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686245510] [2023-11-24 12:03:45,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 12:03:45,252 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 12:03:45,252 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 12:03:45,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 12:03:45,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 12:03:45,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,254 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 12:03:45,255 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 27.5) internal successors, (55), 3 states have internal predecessors, (55), 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) [2023-11-24 12:03:45,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,255 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,281 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-11-24 12:03:45,281 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting t1_funErr1ASSERT_VIOLATIONDATA_RACE === [t1_funErr4ASSERT_VIOLATIONDATA_RACE, t1_funErr0ASSERT_VIOLATIONDATA_RACE, t1_funErr2ASSERT_VIOLATIONDATA_RACE, t1_funErr1ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 12:03:45,282 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:45,282 INFO L85 PathProgramCache]: Analyzing trace with hash 2059905825, now seen corresponding path program 1 times [2023-11-24 12:03:45,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:45,282 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [995550109] [2023-11-24 12:03:45,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:45,283 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:45,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:45,312 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 12:03:45,313 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 12:03:45,313 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [995550109] [2023-11-24 12:03:45,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [995550109] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 12:03:45,313 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 12:03:45,313 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 12:03:45,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1860782305] [2023-11-24 12:03:45,314 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 12:03:45,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 12:03:45,314 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 12:03:45,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 12:03:45,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 12:03:45,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,316 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 12:03:45,316 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 30.0) internal successors, (60), 3 states have internal predecessors, (60), 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) [2023-11-24 12:03:45,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,316 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,382 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-11-24 12:03:45,382 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting t1_funErr3ASSERT_VIOLATIONDATA_RACE === [t1_funErr4ASSERT_VIOLATIONDATA_RACE, t1_funErr0ASSERT_VIOLATIONDATA_RACE, t1_funErr2ASSERT_VIOLATIONDATA_RACE, t1_funErr1ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 12:03:45,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:45,382 INFO L85 PathProgramCache]: Analyzing trace with hash -819376472, now seen corresponding path program 1 times [2023-11-24 12:03:45,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:45,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [537252516] [2023-11-24 12:03:45,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:45,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:45,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:45,411 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-11-24 12:03:45,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 12:03:45,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [537252516] [2023-11-24 12:03:45,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [537252516] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 12:03:45,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 12:03:45,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 12:03:45,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1592224914] [2023-11-24 12:03:45,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 12:03:45,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-11-24 12:03:45,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 12:03:45,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-11-24 12:03:45,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-11-24 12:03:45,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,415 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 12:03:45,416 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 37.0) internal successors, (74), 3 states have internal predecessors, (74), 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) [2023-11-24 12:03:45,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-11-24 12:03:45,564 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting t1_funErr3ASSERT_VIOLATIONDATA_RACE === [t1_funErr4ASSERT_VIOLATIONDATA_RACE, t1_funErr0ASSERT_VIOLATIONDATA_RACE, t1_funErr2ASSERT_VIOLATIONDATA_RACE, t1_funErr1ASSERT_VIOLATIONDATA_RACE (and 1 more)] === [2023-11-24 12:03:45,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:45,565 INFO L85 PathProgramCache]: Analyzing trace with hash -45198533, now seen corresponding path program 1 times [2023-11-24 12:03:45,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:45,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295540670] [2023-11-24 12:03:45,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:45,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:45,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:45,690 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 12:03:45,690 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 12:03:45,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295540670] [2023-11-24 12:03:45,691 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295540670] provided 0 perfect and 1 imperfect interpolant sequences [2023-11-24 12:03:45,691 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439574816] [2023-11-24 12:03:45,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:45,691 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:45,691 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:45,693 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-11-24 12:03:45,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-11-24 12:03:45,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 12:03:45,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 277 conjuncts, 4 conjunts are in the unsatisfiable core [2023-11-24 12:03:45,811 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-11-24 12:03:45,873 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 12:03:45,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-11-24 12:03:45,945 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-11-24 12:03:45,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439574816] provided 0 perfect and 2 imperfect interpolant sequences [2023-11-24 12:03:45,945 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-11-24 12:03:45,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2023-11-24 12:03:45,947 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [645647503] [2023-11-24 12:03:45,948 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-11-24 12:03:45,948 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2023-11-24 12:03:45,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 12:03:45,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2023-11-24 12:03:45,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2023-11-24 12:03:45,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,952 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 12:03:45,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 19.6) internal successors, (196), 10 states have internal predecessors, (196), 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) [2023-11-24 12:03:45,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:45,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,952 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:45,953 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 12:03:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-11-24 12:03:46,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-11-24 12:03:46,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr4ASSERT_VIOLATIONDATA_RACE (4 of 5 remaining) [2023-11-24 12:03:46,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr0ASSERT_VIOLATIONDATA_RACE (3 of 5 remaining) [2023-11-24 12:03:46,080 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr2ASSERT_VIOLATIONDATA_RACE (2 of 5 remaining) [2023-11-24 12:03:46,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr1ASSERT_VIOLATIONDATA_RACE (1 of 5 remaining) [2023-11-24 12:03:46,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location t1_funErr3ASSERT_VIOLATIONDATA_RACE (0 of 5 remaining) [2023-11-24 12:03:46,102 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-11-24 12:03:46,298 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-11-24 12:03:46,303 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1] [2023-11-24 12:03:46,303 INFO L307 ceAbstractionStarter]: Result for error location t1_funThread1of1ForFork0 was SAFE,SAFE,SAFE,SAFE,SAFE (2/3) [2023-11-24 12:03:46,306 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 12:03:46,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 12:03:46,307 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:46,310 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 12:03:46,312 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (10)] Waiting until timeout for monitored process [2023-11-24 12:03:46,313 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 12:03:46,314 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2023-11-24 12:03:46,314 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@ad75cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 12:03:46,314 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2023-11-24 12:03:46,402 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES === [ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2023-11-24 12:03:46,402 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 12:03:46,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1262721645, now seen corresponding path program 1 times [2023-11-24 12:03:46,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 12:03:46,403 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141193913] [2023-11-24 12:03:46,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 12:03:46,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 12:03:46,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 12:03:46,413 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-11-24 12:03:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-11-24 12:03:46,440 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-11-24 12:03:46,440 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-11-24 12:03:46,441 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (3 of 4 remaining) [2023-11-24 12:03:46,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONDATA_RACE (2 of 4 remaining) [2023-11-24 12:03:46,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr1ASSERT_VIOLATIONDATA_RACE (1 of 4 remaining) [2023-11-24 12:03:46,441 INFO L805 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 4 remaining) [2023-11-24 12:03:46,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-11-24 12:03:46,444 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 12:03:46,444 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.start was UNSAFE,UNKNOWN,UNKNOWN,UNKNOWN (3/3) [2023-11-24 12:03:46,445 WARN L233 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2023-11-24 12:03:46,445 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2023-11-24 12:03:46,500 INFO L144 ThreadInstanceAdder]: Constructed 8 joinOtherThreadTransitions. [2023-11-24 12:03:46,504 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 12:03:46,505 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 12:03:46,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 12:03:46,506 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-11-24 12:03:46,543 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 12:03:46,543 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == t2_funThread1of2ForFork1 ======== [2023-11-24 12:03:46,544 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=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@ad75cc, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 12:03:46,544 INFO L358 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2023-11-24 12:03:46,558 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (11)] Waiting until timeout for monitored process