./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/no-data-race.prp --file ../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for data races Using default analysis Version fbcb9f20 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/weaver/parallel-ticket-5.wvr.c -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 f044966ade6b1d79627a5dcb577ad24e14a4ae2ab2467e458af5fa83aa6cd521 --- Real Ultimate output --- This is Ultimate 0.2.3-?-fbcb9f2-m [2023-11-24 07:12:12,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-11-24 07:12:12,241 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-DataRace-32bit-GemCutter_Default.epf [2023-11-24 07:12:12,245 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-11-24 07:12:12,245 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-11-24 07:12:12,283 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-11-24 07:12:12,283 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-11-24 07:12:12,283 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-11-24 07:12:12,284 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-11-24 07:12:12,287 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-11-24 07:12:12,287 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-11-24 07:12:12,287 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-11-24 07:12:12,288 INFO L153 SettingsManager]: * Use SBE=true [2023-11-24 07:12:12,289 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-11-24 07:12:12,289 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-11-24 07:12:12,290 INFO L153 SettingsManager]: * sizeof long=4 [2023-11-24 07:12:12,290 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-11-24 07:12:12,290 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-11-24 07:12:12,290 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-11-24 07:12:12,290 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-11-24 07:12:12,290 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-11-24 07:12:12,291 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-11-24 07:12:12,291 INFO L153 SettingsManager]: * Check absence of data races in concurrent programs=true [2023-11-24 07:12:12,291 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2023-11-24 07:12:12,291 INFO L153 SettingsManager]: * sizeof long double=12 [2023-11-24 07:12:12,291 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-11-24 07:12:12,291 INFO L153 SettingsManager]: * Use constant arrays=true [2023-11-24 07:12:12,292 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-11-24 07:12:12,292 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-11-24 07:12:12,292 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-11-24 07:12:12,293 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-11-24 07:12:12,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 07:12:12,293 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-11-24 07:12:12,293 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-11-24 07:12:12,293 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-11-24 07:12:12,293 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-11-24 07:12:12,293 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-11-24 07:12:12,294 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-11-24 07:12:12,298 INFO L153 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2023-11-24 07:12:12,298 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-11-24 07:12:12,298 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-11-24 07:12:12,298 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2023-11-24 07:12:12,298 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2023-11-24 07:12:12,298 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! data-race) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f044966ade6b1d79627a5dcb577ad24e14a4ae2ab2467e458af5fa83aa6cd521 [2023-11-24 07:12:12,509 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-11-24 07:12:12,529 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-11-24 07:12:12,531 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-11-24 07:12:12,532 INFO L270 PluginConnector]: Initializing CDTParser... [2023-11-24 07:12:12,533 INFO L274 PluginConnector]: CDTParser initialized [2023-11-24 07:12:12,533 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2023-11-24 07:12:13,503 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-11-24 07:12:13,667 INFO L384 CDTParser]: Found 1 translation units. [2023-11-24 07:12:13,667 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/parallel-ticket-5.wvr.c [2023-11-24 07:12:13,674 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/364cf839c/66298c460df24c2489b240decb803b7a/FLAG41f0f494a [2023-11-24 07:12:13,684 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/364cf839c/66298c460df24c2489b240decb803b7a [2023-11-24 07:12:13,686 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-11-24 07:12:13,687 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2023-11-24 07:12:13,691 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-11-24 07:12:13,691 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-11-24 07:12:13,694 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-11-24 07:12:13,695 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:13,697 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@54504c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13, skipping insertion in model container [2023-11-24 07:12:13,697 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:13,726 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-11-24 07:12:13,898 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 07:12:13,911 INFO L202 MainTranslator]: Completed pre-run [2023-11-24 07:12:13,965 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-11-24 07:12:13,976 WARN L675 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 07:12:13,978 WARN L675 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-11-24 07:12:13,984 INFO L206 MainTranslator]: Completed translation [2023-11-24 07:12:13,984 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13 WrapperNode [2023-11-24 07:12:13,984 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-11-24 07:12:13,986 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-11-24 07:12:13,986 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-11-24 07:12:13,986 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-11-24 07:12:13,991 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,018 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,055 INFO L138 Inliner]: procedures = 24, calls = 86, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 506 [2023-11-24 07:12:14,056 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-11-24 07:12:14,057 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-11-24 07:12:14,057 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-11-24 07:12:14,057 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-11-24 07:12:14,064 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,065 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,072 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,073 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,091 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,100 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,110 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,112 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,114 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-11-24 07:12:14,118 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-11-24 07:12:14,119 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-11-24 07:12:14,119 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-11-24 07:12:14,120 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (1/1) ... [2023-11-24 07:12:14,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-11-24 07:12:14,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 07:12:14,145 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 07:12:14,163 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 07:12:14,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-11-24 07:12:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-11-24 07:12:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-11-24 07:12:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-11-24 07:12:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-11-24 07:12:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-11-24 07:12:14,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-11-24 07:12:14,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-11-24 07:12:14,187 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-11-24 07:12:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-11-24 07:12:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2023-11-24 07:12:14,188 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2023-11-24 07:12:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-11-24 07:12:14,188 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-11-24 07:12:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-11-24 07:12:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-11-24 07:12:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-11-24 07:12:14,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-11-24 07:12:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-11-24 07:12:14,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-11-24 07:12:14,191 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 07:12:14,290 INFO L241 CfgBuilder]: Building ICFG [2023-11-24 07:12:14,291 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-11-24 07:12:14,766 INFO L282 CfgBuilder]: Performing block encoding [2023-11-24 07:12:14,975 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-11-24 07:12:14,975 INFO L309 CfgBuilder]: Removed 0 assume(true) statements. [2023-11-24 07:12:14,977 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 07:12:14 BoogieIcfgContainer [2023-11-24 07:12:14,977 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-11-24 07:12:14,979 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-11-24 07:12:14,979 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-11-24 07:12:14,982 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-11-24 07:12:14,982 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.11 07:12:13" (1/3) ... [2023-11-24 07:12:14,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cc0da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 07:12:14, skipping insertion in model container [2023-11-24 07:12:14,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.11 07:12:13" (2/3) ... [2023-11-24 07:12:14,983 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@62cc0da1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.11 07:12:14, skipping insertion in model container [2023-11-24 07:12:14,983 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.11 07:12:14" (3/3) ... [2023-11-24 07:12:14,984 INFO L112 eAbstractionObserver]: Analyzing ICFG parallel-ticket-5.wvr.c [2023-11-24 07:12:14,992 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-11-24 07:12:14,999 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-11-24 07:12:14,999 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 75 error locations. [2023-11-24 07:12:14,999 INFO L514 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-11-24 07:12:15,088 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2023-11-24 07:12:15,142 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 07:12:15,143 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 07:12:15,143 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 07:12:15,144 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 07:12:15,161 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 07:12:15,189 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 07:12:15,198 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread2Thread1of1ForFork3 ======== [2023-11-24 07:12:15,203 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;@7c9ead8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 07:12:15,203 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-24 07:12:15,539 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread2Err0ASSERT_VIOLATIONDATA_RACE === [thread2Err0ASSERT_VIOLATIONDATA_RACE, thread2Err1ASSERT_VIOLATIONDATA_RACE, thread2Err2ASSERT_VIOLATIONDATA_RACE, thread2Err3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-24 07:12:15,542 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 07:12:15,543 INFO L85 PathProgramCache]: Analyzing trace with hash 113979122, now seen corresponding path program 1 times [2023-11-24 07:12:15,549 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 07:12:15,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236829476] [2023-11-24 07:12:15,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 07:12:15,550 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 07:12:15,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 07:12:15,749 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 07:12:15,750 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 07:12:15,750 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236829476] [2023-11-24 07:12:15,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236829476] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 07:12:15,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 07:12:15,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 07:12:15,761 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286982309] [2023-11-24 07:12:15,762 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 07:12:15,766 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 07:12:15,767 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 07:12:15,784 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 07:12:15,784 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 07:12:15,785 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 07:12:15,788 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 07:12:15,789 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 68.0) internal successors, (136), 2 states have internal predecessors, (136), 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 07:12:15,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-11-24 07:12:38,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 07:12:38,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err0ASSERT_VIOLATIONDATA_RACE (10 of 11 remaining) [2023-11-24 07:12:38,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err1ASSERT_VIOLATIONDATA_RACE (9 of 11 remaining) [2023-11-24 07:12:38,083 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err2ASSERT_VIOLATIONDATA_RACE (8 of 11 remaining) [2023-11-24 07:12:38,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err3ASSERT_VIOLATIONDATA_RACE (7 of 11 remaining) [2023-11-24 07:12:38,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err4ASSERT_VIOLATIONDATA_RACE (6 of 11 remaining) [2023-11-24 07:12:38,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err5ASSERT_VIOLATIONDATA_RACE (5 of 11 remaining) [2023-11-24 07:12:38,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err6ASSERT_VIOLATIONDATA_RACE (4 of 11 remaining) [2023-11-24 07:12:38,084 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err7ASSERT_VIOLATIONDATA_RACE (3 of 11 remaining) [2023-11-24 07:12:38,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err8ASSERT_VIOLATIONDATA_RACE (2 of 11 remaining) [2023-11-24 07:12:38,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err9ASSERT_VIOLATIONDATA_RACE (1 of 11 remaining) [2023-11-24 07:12:38,085 INFO L805 garLoopResultBuilder]: Registering result SAFE for location thread2Err10ASSERT_VIOLATIONDATA_RACE (0 of 11 remaining) [2023-11-24 07:12:38,085 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-11-24 07:12:38,102 INFO L445 BasicCegarLoop]: Path program histogram: [1] [2023-11-24 07:12:38,105 INFO L307 ceAbstractionStarter]: Result for error location thread2Thread1of1ForFork3 was SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE,SAFE (1/6) [2023-11-24 07:12:38,112 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 07:12:38,114 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-11-24 07:12:38,114 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2023-11-24 07:12:38,153 INFO L229 MonitoredProcess]: Starting monitored process 3 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 07:12:38,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2023-11-24 07:12:38,175 INFO L159 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-11-24 07:12:38,175 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == thread4Thread1of1ForFork2 ======== [2023-11-24 07:12:38,176 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;@7c9ead8d, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-11-24 07:12:38,176 INFO L358 AbstractCegarLoop]: Starting to check reachability of 11 error locations. [2023-11-24 07:12:38,346 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting thread4Err0ASSERT_VIOLATIONDATA_RACE === [thread4Err0ASSERT_VIOLATIONDATA_RACE, thread4Err1ASSERT_VIOLATIONDATA_RACE, thread4Err2ASSERT_VIOLATIONDATA_RACE, thread4Err3ASSERT_VIOLATIONDATA_RACE (and 7 more)] === [2023-11-24 07:12:38,347 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-11-24 07:12:38,347 INFO L85 PathProgramCache]: Analyzing trace with hash 413557426, now seen corresponding path program 1 times [2023-11-24 07:12:38,348 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-11-24 07:12:38,348 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [351768482] [2023-11-24 07:12:38,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-11-24 07:12:38,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-11-24 07:12:38,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-11-24 07:12:38,448 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 07:12:38,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-11-24 07:12:38,455 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [351768482] [2023-11-24 07:12:38,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [351768482] provided 1 perfect and 0 imperfect interpolant sequences [2023-11-24 07:12:38,455 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-11-24 07:12:38,455 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-11-24 07:12:38,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1203429969] [2023-11-24 07:12:38,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-11-24 07:12:38,456 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-11-24 07:12:38,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-11-24 07:12:38,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-11-24 07:12:38,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-11-24 07:12:38,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-11-24 07:12:38,459 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-11-24 07:12:38,461 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 74.0) internal successors, (148), 2 states have internal predecessors, (148), 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 07:12:38,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.