./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/twostage_3.i --full-output --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b86fb0b7 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/pthread/twostage_3.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 20:45:15,615 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 20:45:15,663 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-17 20:45:15,668 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 20:45:15,669 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 20:45:15,691 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 20:45:15,693 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 20:45:15,693 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 20:45:15,694 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 20:45:15,695 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 20:45:15,695 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 20:45:15,696 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 20:45:15,696 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 20:45:15,696 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 20:45:15,698 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 20:45:15,698 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 20:45:15,698 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-17 20:45:15,698 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 20:45:15,698 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 20:45:15,699 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 20:45:15,699 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 20:45:15,700 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 20:45:15,700 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 20:45:15,700 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 20:45:15,700 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 20:45:15,701 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 20:45:15,701 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 20:45:15,701 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 20:45:15,701 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 20:45:15,701 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 20:45:15,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 20:45:15,702 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 20:45:15,702 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 20:45:15,702 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 20:45:15,702 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-17 20:45:15,703 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 20:45:15,703 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 20:45:15,703 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 20:45:15,703 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-17 20:45:15,703 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 20:45:15,703 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 20:45:15,706 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 ! call(reach_error())) ) 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 -> 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 213 [2024-10-17 20:45:15,948 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 20:45:15,986 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 20:45:15,989 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 20:45:15,990 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 20:45:15,990 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 20:45:15,992 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/twostage_3.i [2024-10-17 20:45:17,223 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 20:45:17,488 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 20:45:17,489 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/twostage_3.i [2024-10-17 20:45:17,517 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/57fe4e8f5/e984fcae5fe24aed996183dcbca7d6ef/FLAG733b82d32 [2024-10-17 20:45:17,846 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/57fe4e8f5/e984fcae5fe24aed996183dcbca7d6ef [2024-10-17 20:45:17,849 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 20:45:17,850 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 20:45:17,853 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 20:45:17,853 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 20:45:17,859 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 20:45:17,859 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 08:45:17" (1/1) ... [2024-10-17 20:45:17,860 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fbda59f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:17, skipping insertion in model container [2024-10-17 20:45:17,860 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 08:45:17" (1/1) ... [2024-10-17 20:45:17,916 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 20:45:18,312 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/twostage_3.i[59093,59106] [2024-10-17 20:45:18,333 WARN L1659 CHandler]: Possible shadowing of function lock [2024-10-17 20:45:18,334 WARN L1659 CHandler]: Possible shadowing of function lock [2024-10-17 20:45:18,335 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 20:45:18,342 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 20:45:18,379 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/twostage_3.i[59093,59106] [2024-10-17 20:45:18,393 WARN L1659 CHandler]: Possible shadowing of function lock [2024-10-17 20:45:18,398 WARN L1659 CHandler]: Possible shadowing of function lock [2024-10-17 20:45:18,399 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 20:45:18,464 INFO L204 MainTranslator]: Completed translation [2024-10-17 20:45:18,465 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18 WrapperNode [2024-10-17 20:45:18,465 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 20:45:18,466 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 20:45:18,466 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 20:45:18,466 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 20:45:18,472 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,495 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,523 INFO L138 Inliner]: procedures = 373, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 140 [2024-10-17 20:45:18,525 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 20:45:18,526 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 20:45:18,526 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 20:45:18,526 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 20:45:18,533 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,533 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,539 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,551 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,556 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,558 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,559 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,561 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 20:45:18,562 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 20:45:18,563 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 20:45:18,563 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 20:45:18,564 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (1/1) ... [2024-10-17 20:45:18,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 20:45:18,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:45:18,596 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) [2024-10-17 20:45:18,598 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 [2024-10-17 20:45:18,633 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-10-17 20:45:18,633 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-10-17 20:45:18,633 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-10-17 20:45:18,633 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-10-17 20:45:18,634 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-17 20:45:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-17 20:45:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-17 20:45:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-17 20:45:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-17 20:45:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-17 20:45:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 20:45:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 20:45:18,635 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-17 20:45:18,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 20:45:18,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 20:45:18,637 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 20:45:18,821 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 20:45:18,823 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 20:45:19,061 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 20:45:19,061 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 20:45:19,219 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 20:45:19,220 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-17 20:45:19,220 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 08:45:19 BoogieIcfgContainer [2024-10-17 20:45:19,221 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 20:45:19,224 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 20:45:19,224 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 20:45:19,227 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 20:45:19,227 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 08:45:17" (1/3) ... [2024-10-17 20:45:19,228 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7e1616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 08:45:19, skipping insertion in model container [2024-10-17 20:45:19,228 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:18" (2/3) ... [2024-10-17 20:45:19,229 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a7e1616 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 08:45:19, skipping insertion in model container [2024-10-17 20:45:19,230 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 08:45:19" (3/3) ... [2024-10-17 20:45:19,231 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2024-10-17 20:45:19,244 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 20:45:19,245 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 20:45:19,245 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 20:45:19,290 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-17 20:45:19,327 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 20:45:19,329 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 20:45:19,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:45:19,331 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) [2024-10-17 20:45:19,332 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 [2024-10-17 20:45:19,415 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 20:45:19,436 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:45:19,437 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == funcBThread1of1ForFork1 ======== [2024-10-17 20:45:19,444 INFO L333 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, 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;@2f669bce, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 20:45:19,445 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 20:45:20,253 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:45:20,260 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:45:20,260 INFO L85 PathProgramCache]: Analyzing trace with hash -1846882738, now seen corresponding path program 1 times [2024-10-17 20:45:20,267 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:45:20,268 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393601816] [2024-10-17 20:45:20,268 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:45:20,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:45:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:45:20,794 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:45:20,797 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:45:20,798 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393601816] [2024-10-17 20:45:20,798 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393601816] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:45:20,798 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:45:20,799 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-17 20:45:20,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [240548662] [2024-10-17 20:45:20,800 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:45:20,805 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-17 20:45:20,805 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:45:20,828 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-17 20:45:20,829 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-17 20:45:20,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:45:20,832 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:45:20,833 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2024-10-17 20:45:20,833 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:45:21,495 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 20:45:21,495 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-17 20:45:21,495 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:45:21,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:45:21,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1506294770, now seen corresponding path program 2 times [2024-10-17 20:45:21,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:45:21,509 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [439979965] [2024-10-17 20:45:21,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:45:21,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:45:21,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:45:21,823 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:45:21,823 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-17 20:45:21,823 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [439979965] [2024-10-17 20:45:21,823 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [439979965] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-17 20:45:21,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [603353591] [2024-10-17 20:45:21,824 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 20:45:21,824 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-17 20:45:21,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:45:21,853 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) [2024-10-17 20:45:21,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-17 20:45:21,961 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 20:45:21,961 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 20:45:21,965 INFO L255 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-10-17 20:45:21,970 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:45:21,996 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-10-17 20:45:22,016 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2024-10-17 20:45:22,043 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-17 20:45:22,061 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 11 [2024-10-17 20:45:22,071 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:45:22,071 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 20:45:22,072 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [603353591] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:45:22,072 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-17 20:45:22,072 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [6] total 8 [2024-10-17 20:45:22,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1038019169] [2024-10-17 20:45:22,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:45:22,073 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 20:45:22,073 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-17 20:45:22,074 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 20:45:22,074 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-10-17 20:45:22,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:45:22,075 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:45:22,075 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-10-17 20:45:22,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 20:45:22,075 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:45:22,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 20:45:22,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:45:22,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-17 20:45:22,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-10-17 20:45:22,500 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:45:22,513 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:45:22,513 INFO L85 PathProgramCache]: Analyzing trace with hash -1389779958, now seen corresponding path program 3 times [2024-10-17 20:45:22,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-17 20:45:22,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418479899] [2024-10-17 20:45:22,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:45:22,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-17 20:45:22,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 20:45:22,544 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 20:45:22,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 20:45:22,601 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2024-10-17 20:45:22,602 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-17 20:45:22,603 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location funcBErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-17 20:45:22,604 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-17 20:45:22,612 INFO L414 BasicCegarLoop]: Path program histogram: [3] [2024-10-17 20:45:22,613 INFO L312 ceAbstractionStarter]: Result for error location funcBThread1of1ForFork1 was UNSAFE (1/2) [2024-10-17 20:45:22,659 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-17 20:45:22,659 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-17 20:45:22,661 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 08:45:22 BasicIcfg [2024-10-17 20:45:22,662 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-17 20:45:22,662 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-17 20:45:22,662 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-17 20:45:22,662 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-17 20:45:22,663 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 08:45:19" (3/4) ... [2024-10-17 20:45:22,666 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-17 20:45:22,667 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-17 20:45:22,668 INFO L158 Benchmark]: Toolchain (without parser) took 4817.19ms. Allocated memory was 176.2MB in the beginning and 218.1MB in the end (delta: 41.9MB). Free memory was 141.3MB in the beginning and 163.6MB in the end (delta: -22.3MB). Peak memory consumption was 18.5MB. Max. memory is 16.1GB. [2024-10-17 20:45:22,668 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-17 20:45:22,670 INFO L158 Benchmark]: CACSL2BoogieTranslator took 612.49ms. Allocated memory is still 176.2MB. Free memory was 141.3MB in the beginning and 98.3MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. [2024-10-17 20:45:22,671 INFO L158 Benchmark]: Boogie Procedure Inliner took 59.22ms. Allocated memory is still 176.2MB. Free memory was 98.3MB in the beginning and 95.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-10-17 20:45:22,671 INFO L158 Benchmark]: Boogie Preprocessor took 35.87ms. Allocated memory is still 176.2MB. Free memory was 95.2MB in the beginning and 94.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-17 20:45:22,671 INFO L158 Benchmark]: RCFGBuilder took 658.56ms. Allocated memory is still 176.2MB. Free memory was 94.0MB in the beginning and 101.9MB in the end (delta: -7.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2024-10-17 20:45:22,671 INFO L158 Benchmark]: TraceAbstraction took 3437.77ms. Allocated memory was 176.2MB in the beginning and 218.1MB in the end (delta: 41.9MB). Free memory was 100.8MB in the beginning and 164.6MB in the end (delta: -63.8MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. [2024-10-17 20:45:22,671 INFO L158 Benchmark]: Witness Printer took 5.06ms. Allocated memory is still 218.1MB. Free memory was 164.6MB in the beginning and 163.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-10-17 20:45:22,672 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 102.8MB. Free memory is still 73.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 612.49ms. Allocated memory is still 176.2MB. Free memory was 141.3MB in the beginning and 98.3MB in the end (delta: 43.1MB). Peak memory consumption was 41.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 59.22ms. Allocated memory is still 176.2MB. Free memory was 98.3MB in the beginning and 95.2MB in the end (delta: 3.1MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 35.87ms. Allocated memory is still 176.2MB. Free memory was 95.2MB in the beginning and 94.0MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 658.56ms. Allocated memory is still 176.2MB. Free memory was 94.0MB in the beginning and 101.9MB in the end (delta: -7.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3437.77ms. Allocated memory was 176.2MB in the beginning and 218.1MB in the end (delta: 41.9MB). Free memory was 100.8MB in the beginning and 164.6MB in the end (delta: -63.8MB). Peak memory consumption was 87.2MB. Max. memory is 16.1GB. * Witness Printer took 5.06ms. Allocated memory is still 218.1MB. Free memory was 164.6MB in the beginning and 163.6MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2321, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 163, dependent conditional: 131, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 83, dependent conditional: 19, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1213, independent: 1177, independent conditional: 2, independent unconditional: 1175, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1213, independent: 1146, independent conditional: 0, independent unconditional: 1146, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1256, independent: 584, independent conditional: 33, independent unconditional: 551, dependent: 672, dependent conditional: 43, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2241, independent: 981, independent conditional: 0, independent unconditional: 981, dependent: 47, dependent conditional: 2, dependent unconditional: 45, unknown: 1213, unknown conditional: 6, unknown unconditional: 1207] , Statistics on independence cache: Total cache size (in pairs): 1213, Positive cache size: 1177, Positive conditional cache size: 2, Positive unconditional cache size: 1175, Negative cache size: 36, Negative conditional cache size: 4, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 904, Maximal queried relation: 2, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 83, dependent conditional: 19, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1213, independent: 1177, independent conditional: 2, independent unconditional: 1175, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1213, independent: 1146, independent conditional: 0, independent unconditional: 1146, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1256, independent: 584, independent conditional: 33, independent unconditional: 551, dependent: 672, dependent conditional: 43, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2241, independent: 981, independent conditional: 0, independent unconditional: 981, dependent: 47, dependent conditional: 2, dependent unconditional: 45, unknown: 1213, unknown conditional: 6, unknown unconditional: 1207] , Statistics on independence cache: Total cache size (in pairs): 1213, Positive cache size: 1177, Positive conditional cache size: 2, Positive unconditional cache size: 1175, Negative cache size: 36, Negative conditional cache size: 4, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 904 ], Independence queries for same thread: 125, Persistent sets #1 benchmarks: Persistent set computation time: 1.3s, Number of persistent set computation: 220, Number of trivial persistent sets: 173, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1297, independent: 1265, independent conditional: 0, independent unconditional: 1265, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2321, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 163, dependent conditional: 131, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 83, dependent conditional: 19, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1213, independent: 1177, independent conditional: 2, independent unconditional: 1175, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1213, independent: 1146, independent conditional: 0, independent unconditional: 1146, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1256, independent: 584, independent conditional: 33, independent unconditional: 551, dependent: 672, dependent conditional: 43, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2241, independent: 981, independent conditional: 0, independent unconditional: 981, dependent: 47, dependent conditional: 2, dependent unconditional: 45, unknown: 1213, unknown conditional: 6, unknown unconditional: 1207] , Statistics on independence cache: Total cache size (in pairs): 1213, Positive cache size: 1177, Positive conditional cache size: 2, Positive unconditional cache size: 1175, Negative cache size: 36, Negative conditional cache size: 4, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 904, Maximal queried relation: 2, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 83, dependent conditional: 19, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1213, independent: 1177, independent conditional: 2, independent unconditional: 1175, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1213, independent: 1146, independent conditional: 0, independent unconditional: 1146, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1256, independent: 584, independent conditional: 33, independent unconditional: 551, dependent: 672, dependent conditional: 43, dependent unconditional: 629, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2241, independent: 981, independent conditional: 0, independent unconditional: 981, dependent: 47, dependent conditional: 2, dependent unconditional: 45, unknown: 1213, unknown conditional: 6, unknown unconditional: 1207] , Statistics on independence cache: Total cache size (in pairs): 1213, Positive cache size: 1177, Positive conditional cache size: 2, Positive unconditional cache size: 1175, Negative cache size: 36, Negative conditional cache size: 4, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 904 ], Independence queries for same thread: 125 - UnprovableResult [Line: 1272]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1284. Possible FailurePath: [L1236] 0 static int iTThreads = 2; [L1237] 0 static int iRThreads = 1; [L1238] 0 static int data1Value = 0; [L1239] 0 static int data2Value = 0; [L1240] 0 pthread_mutex_t *data1Lock; [L1241] 0 pthread_mutex_t *data2Lock; [L1278] 0 int i,err; [L1279] COND TRUE 0 argc != 1 [L1280] COND FALSE 0 !(argc != 3) [L1288] COND FALSE 0 !(iTThreads > 100000 || iRThreads > 100000) [L1291] 0 data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1292] 0 data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1293] EXPR 0 err = pthread_mutex_init(data1Lock, ((void *)0)) [L1293] COND FALSE 0 !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1297] EXPR 0 err = pthread_mutex_init(data2Lock, ((void *)0)) [L1297] COND FALSE 0 !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1301] 0 pthread_t tPool[iTThreads]; [L1302] 0 pthread_t rPool[iRThreads]; [L1303] 0 i = 0 VAL [\old(argc)=3, \old(argv)={50:53}, argc=3, data1Lock={-3:0}, data1Value=0, data2Lock={-2:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, rPool={5:0}, tPool={6:0}] [L1303] COND TRUE 0 i < iTThreads [L1304] EXPR, FCALL, FORK 0 pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) VAL [\old(argc)=3, \old(argv)={50:53}, \old(param)={0:0}, argc=3, data1Lock={-3:0}, data1Value=0, data2Lock={-2:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, rPool={5:0}, tPool={6:0}] [L1245] 1 int t1 = -1; VAL [\old(param)={0:0}, data1Lock={-3:0}, data1Value=0, data2Lock={-2:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, t1=-1] [L1247] 1 data1Value = 1 VAL [\old(param)={0:0}, data1Lock={-3:0}, data1Value=1, data2Lock={-2:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, t1=-1] [L1250] 1 t1 = data1Value VAL [\old(param)={0:0}, data1Lock={-3:0}, data1Value=1, data2Lock={-2:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, t1=1] [L1304] EXPR 0 err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) [L1304] COND FALSE 0 !(0 != (err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)))) [L1303] 0 i++ VAL [\old(argc)=3, \old(argv)={50:53}, \old(param)={0:0}, argc=3, data1Lock={-3:0}, data1Value=1, data2Lock={-2:0}, data2Value=0, err=0, i=1, iRThreads=1, iTThreads=1, param={0:0}, rPool={5:0}, t1=1, tPool={6:0}] [L1303] COND FALSE 0 !(i < iTThreads) [L1309] 0 i = 0 VAL [\old(argc)=3, \old(argv)={50:53}, \old(param)={0:0}, argc=3, data1Lock={-3:0}, data1Value=1, data2Lock={-2:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, param={0:0}, rPool={5:0}, t1=1, tPool={6:0}] [L1309] COND TRUE 0 i < iRThreads [L1310] FCALL, FORK 0 pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) VAL [\old(argc)=3, \old(argv)={50:53}, \old(param)={0:0}, \old(param)={0:0}, argc=3, data1Lock={-3:0}, data1Value=1, data2Lock={-2:0}, data2Value=0, err=0, i=0, iRThreads=1, iTThreads=1, param={0:0}, rPool={5:0}, t1=1, tPool={6:0}] [L1258] 2 int t1 = -1; [L1259] 2 int t2 = -1; VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-3:0}, data1Value=1, data2Lock={-2:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=-1, t1=1, t2=-1] [L1261] COND FALSE 2 !(data1Value == 0) [L1265] 2 t1 = data1Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-3:0}, data1Value=1, data2Lock={-2:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=-1] [L1268] 2 t2 = data2Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-3:0}, data1Value=1, data2Lock={-2:0}, data2Value=0, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1253] 1 data2Value = t1 + 1 VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={-3:0}, data1Value=1, data2Lock={-2:0}, data2Value=2, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1255] 1 return ((void *)0); [L1270] COND TRUE 2 t2 != (t1 + 1) [L1272] 2 reach_error() VAL [\old(param)={0:0}, \old(param)={0:0}, \result={0:0}, data1Lock={-3:0}, data1Value=1, data2Lock={-2:0}, data2Value=2, iRThreads=1, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: funcBThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.2s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 1.7s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 128 NumberOfCodeBlocks, 128 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 93 ConstructedInterpolants, 0 QuantifiedInterpolants, 616 SizeOfPredicates, 1 NumberOfNonLiveVariables, 232 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 3 InterpolantComputations, 2 PerfectInterpolantSequences, 2/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: ConditionalCommutativityOverallTime: 0.0s, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-17 20:45:22,697 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-10-17 20:45:22,898 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis ### Bit-precise run ### 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/pthread/twostage_3.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.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 ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 --traceabstraction.dfs.order.used.in.por LOOP_LOCKSTEP --traceabstraction.additional.conditional.commutativity.checking COUNTEREXAMPLE --traceabstraction.criterion.for.conditional.commutativity.checking RANDOM --traceabstraction.probability.for.random.criterion 20 --traceabstraction.seed.for.random.criterion 213 -tc /storage/repos/ultimate/releaseScripts/default/benchexec/../../../trunk/examples/toolchains/AutomizerCInline.xml --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dk.conditional-comm-b86fb0b-m [2024-10-17 20:45:24,827 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-17 20:45:24,901 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Bitvector.epf [2024-10-17 20:45:24,907 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-17 20:45:24,908 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-17 20:45:24,934 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-17 20:45:24,934 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-17 20:45:24,935 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-17 20:45:24,937 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-17 20:45:24,938 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-17 20:45:24,938 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-17 20:45:24,938 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-17 20:45:24,939 INFO L153 SettingsManager]: * Use SBE=true [2024-10-17 20:45:24,939 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-17 20:45:24,939 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-17 20:45:24,939 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-17 20:45:24,939 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-17 20:45:24,939 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-17 20:45:24,940 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-17 20:45:24,940 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-17 20:45:24,943 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-17 20:45:24,944 INFO L153 SettingsManager]: * Use bitvectors instead of ints=true [2024-10-17 20:45:24,944 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-17 20:45:24,944 INFO L153 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2024-10-17 20:45:24,944 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-17 20:45:24,944 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-17 20:45:24,944 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-17 20:45:24,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-17 20:45:24,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-17 20:45:24,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-17 20:45:24,945 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-17 20:45:24,945 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 20:45:24,945 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-17 20:45:24,945 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-17 20:45:24,945 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-17 20:45:24,946 INFO L153 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2024-10-17 20:45:24,946 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-17 20:45:24,946 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-17 20:45:24,946 INFO L153 SettingsManager]: * Logic for external solver=AUFBV [2024-10-17 20:45:24,946 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-17 20:45:24,946 INFO L153 SettingsManager]: * Trace refinement strategy=WOLF [2024-10-17 20:45:24,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-17 20:45:24,947 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-17 20:45:24,947 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 ! call(reach_error())) ) 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 -> 1032ef3fe166161226ca7e81ea27802cfc3f516ad1e4b45c387461fe1ddeccf8 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: DFS Order used in POR -> LOOP_LOCKSTEP Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional conditional commutativity checking -> COUNTEREXAMPLE Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Criterion for conditional commutativity checking -> RANDOM Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Probability for random criterion as percentage -> 20 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Seed for random criterion -> 213 [2024-10-17 20:45:25,199 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-17 20:45:25,217 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-17 20:45:25,222 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-17 20:45:25,223 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-17 20:45:25,223 INFO L274 PluginConnector]: CDTParser initialized [2024-10-17 20:45:25,224 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/twostage_3.i [2024-10-17 20:45:26,612 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-17 20:45:26,834 INFO L384 CDTParser]: Found 1 translation units. [2024-10-17 20:45:26,835 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/twostage_3.i [2024-10-17 20:45:26,860 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3cba84250/5f9b463349bd490992772939f2ebcb08/FLAGe9a9c5ac7 [2024-10-17 20:45:27,173 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/3cba84250/5f9b463349bd490992772939f2ebcb08 [2024-10-17 20:45:27,176 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-17 20:45:27,177 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-17 20:45:27,178 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-17 20:45:27,178 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-17 20:45:27,182 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-17 20:45:27,183 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:27,183 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@28adf6fa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27, skipping insertion in model container [2024-10-17 20:45:27,184 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:27,225 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-17 20:45:27,745 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/twostage_3.i[59093,59106] [2024-10-17 20:45:27,767 WARN L1659 CHandler]: Possible shadowing of function lock [2024-10-17 20:45:27,768 WARN L1659 CHandler]: Possible shadowing of function lock [2024-10-17 20:45:27,768 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 20:45:27,782 INFO L200 MainTranslator]: Completed pre-run [2024-10-17 20:45:27,830 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/twostage_3.i[59093,59106] [2024-10-17 20:45:27,843 WARN L1659 CHandler]: Possible shadowing of function lock [2024-10-17 20:45:27,847 WARN L1659 CHandler]: Possible shadowing of function lock [2024-10-17 20:45:27,847 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-17 20:45:27,918 INFO L204 MainTranslator]: Completed translation [2024-10-17 20:45:27,919 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27 WrapperNode [2024-10-17 20:45:27,919 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-17 20:45:27,920 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-17 20:45:27,920 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-17 20:45:27,920 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-17 20:45:27,925 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:27,953 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:27,975 INFO L138 Inliner]: procedures = 376, calls = 33, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 139 [2024-10-17 20:45:27,975 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-17 20:45:27,976 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-17 20:45:27,976 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-17 20:45:27,976 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-17 20:45:27,983 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:27,983 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:27,986 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:27,987 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:27,994 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:28,000 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:28,006 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:28,007 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:28,010 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-17 20:45:28,011 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-17 20:45:28,011 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-17 20:45:28,012 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-17 20:45:28,012 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (1/1) ... [2024-10-17 20:45:28,020 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-17 20:45:28,033 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:45:28,047 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) [2024-10-17 20:45:28,050 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 [2024-10-17 20:45:28,090 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2024-10-17 20:45:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure funcA [2024-10-17 20:45:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure funcA [2024-10-17 20:45:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure funcB [2024-10-17 20:45:28,092 INFO L138 BoogieDeclarations]: Found implementation of procedure funcB [2024-10-17 20:45:28,092 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-10-17 20:45:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-10-17 20:45:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2024-10-17 20:45:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2024-10-17 20:45:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexUnlock [2024-10-17 20:45:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2024-10-17 20:45:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-10-17 20:45:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-17 20:45:28,093 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-17 20:45:28,094 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-17 20:45:28,095 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-17 20:45:28,250 INFO L238 CfgBuilder]: Building ICFG [2024-10-17 20:45:28,253 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-17 20:45:28,580 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-17 20:45:28,581 INFO L287 CfgBuilder]: Performing block encoding [2024-10-17 20:45:28,785 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-17 20:45:28,786 INFO L314 CfgBuilder]: Removed 4 assume(true) statements. [2024-10-17 20:45:28,786 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 08:45:28 BoogieIcfgContainer [2024-10-17 20:45:28,787 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-17 20:45:28,789 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-17 20:45:28,790 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-17 20:45:28,793 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-17 20:45:28,793 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.10 08:45:27" (1/3) ... [2024-10-17 20:45:28,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dd822e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 08:45:28, skipping insertion in model container [2024-10-17 20:45:28,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.10 08:45:27" (2/3) ... [2024-10-17 20:45:28,794 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@70dd822e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.10 08:45:28, skipping insertion in model container [2024-10-17 20:45:28,794 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 08:45:28" (3/3) ... [2024-10-17 20:45:28,796 INFO L112 eAbstractionObserver]: Analyzing ICFG twostage_3.i [2024-10-17 20:45:28,810 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-17 20:45:28,810 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-17 20:45:28,810 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-17 20:45:28,851 INFO L143 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2024-10-17 20:45:28,890 INFO L106 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-17 20:45:28,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-17 20:45:28,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-17 20:45:28,893 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) [2024-10-17 20:45:28,894 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 [2024-10-17 20:45:28,974 INFO L194 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-17 20:45:28,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:45:28,993 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == funcBThread1of1ForFork1 ======== [2024-10-17 20:45:28,998 INFO L333 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, 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;@292f11eb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms], mConComChecker=COUNTEREXAMPLE, mConComCheckerCriterion=RANDOM, mConComCheckerTraceCheckMode=GENERATOR, mConComCheckerLimitedChecksCriterion=false, mConComCheckerCriterionLimit=1, mConComCheckerRandomProb=20, mConComCheckerRandomSeed=213, mConComCheckerConditionCriterion=false [2024-10-17 20:45:28,998 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-17 20:45:29,975 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:45:29,977 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:45:29,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1128641970, now seen corresponding path program 1 times [2024-10-17 20:45:29,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 20:45:29,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1110494007] [2024-10-17 20:45:29,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-17 20:45:29,989 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-17 20:45:29,989 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 20:45:30,009 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-17 20:45:30,010 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2024-10-17 20:45:30,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-17 20:45:30,114 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-17 20:45:30,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:45:30,249 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:45:30,249 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 20:45:30,250 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 20:45:30,250 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1110494007] [2024-10-17 20:45:30,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1110494007] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:45:30,251 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:45:30,251 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-17 20:45:30,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [217697535] [2024-10-17 20:45:30,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:45:30,256 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-17 20:45:30,256 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 20:45:30,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-17 20:45:30,273 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-10-17 20:45:30,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:45:30,275 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:45:30,276 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 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) [2024-10-17 20:45:30,276 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:45:31,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 20:45:31,053 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (3)] Ended with exit code 0 [2024-10-17 20:45:31,249 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-17 20:45:31,250 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:45:31,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:45:31,266 INFO L85 PathProgramCache]: Analyzing trace with hash -2070431758, now seen corresponding path program 2 times [2024-10-17 20:45:31,266 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 20:45:31,266 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1112391744] [2024-10-17 20:45:31,266 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-17 20:45:31,266 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-17 20:45:31,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 20:45:31,271 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-17 20:45:31,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2024-10-17 20:45:31,377 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-17 20:45:31,377 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-17 20:45:31,380 INFO L255 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-17 20:45:31,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-17 20:45:31,413 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 10 treesize of output 8 [2024-10-17 20:45:31,441 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2024-10-17 20:45:31,479 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-10-17 20:45:31,501 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 13 [2024-10-17 20:45:31,511 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-17 20:45:31,511 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-17 20:45:31,511 INFO L136 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2024-10-17 20:45:31,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1112391744] [2024-10-17 20:45:31,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1112391744] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-17 20:45:31,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-17 20:45:31,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-17 20:45:31,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285135373] [2024-10-17 20:45:31,512 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-17 20:45:31,513 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-17 20:45:31,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2024-10-17 20:45:31,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-17 20:45:31,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-17 20:45:31,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:45:31,515 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-17 20:45:31,515 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.4) internal successors, (32), 4 states have internal predecessors, (32), 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) [2024-10-17 20:45:31,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-10-17 20:45:31,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-17 20:45:31,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-17 20:45:31,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-17 20:45:31,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2024-10-17 20:45:32,067 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-17 20:45:32,067 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting funcBErr0ASSERT_VIOLATIONERROR_FUNCTION === [funcBErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-17 20:45:32,093 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-17 20:45:32,093 INFO L85 PathProgramCache]: Analyzing trace with hash -671539190, now seen corresponding path program 3 times [2024-10-17 20:45:32,093 INFO L118 FreeRefinementEngine]: Executing refinement strategy WOLF [2024-10-17 20:45:32,093 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [813067332] [2024-10-17 20:45:32,094 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-17 20:45:32,094 INFO L173 SolverBuilder]: Constructing external solver with command: mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-17 20:45:32,094 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat [2024-10-17 20:45:32,096 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2024-10-17 20:45:32,097 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2024-10-17 20:45:32,199 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-10-17 20:45:32,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2024-10-17 20:45:32,200 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2024-10-17 20:45:32,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2024-10-17 20:45:32,281 INFO L130 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2024-10-17 20:45:32,281 INFO L332 BasicCegarLoop]: Counterexample is feasible [2024-10-17 20:45:32,282 INFO L782 garLoopResultBuilder]: Registering result UNSAFE for location funcBErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-10-17 20:45:32,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 (5)] Ended with exit code 0 [2024-10-17 20:45:32,483 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/mathsat -theory.fp.to_bv_overflow_mode=1 -theory.fp.minmax_zero_mode=4 -theory.bv.div_by_zero_mode=1 -unsat_core_generation=3 [2024-10-17 20:45:32,491 INFO L414 BasicCegarLoop]: Path program histogram: [3] [2024-10-17 20:45:32,492 INFO L312 ceAbstractionStarter]: Result for error location funcBThread1of1ForFork1 was UNSAFE (1/2) [2024-10-17 20:45:32,540 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-10-17 20:45:32,541 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-10-17 20:45:32,543 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.10 08:45:32 BasicIcfg [2024-10-17 20:45:32,543 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-10-17 20:45:32,544 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-10-17 20:45:32,544 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-10-17 20:45:32,544 INFO L274 PluginConnector]: Witness Printer initialized [2024-10-17 20:45:32,545 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.10 08:45:28" (3/4) ... [2024-10-17 20:45:32,546 INFO L142 WitnessPrinter]: No result that supports witness generation found [2024-10-17 20:45:32,547 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-10-17 20:45:32,548 INFO L158 Benchmark]: Toolchain (without parser) took 5370.75ms. Allocated memory was 65.0MB in the beginning and 134.2MB in the end (delta: 69.2MB). Free memory was 36.6MB in the beginning and 55.5MB in the end (delta: -19.0MB). Peak memory consumption was 52.2MB. Max. memory is 16.1GB. [2024-10-17 20:45:32,548 INFO L158 Benchmark]: CDTParser took 0.25ms. Allocated memory is still 41.9MB. Free memory is still 18.4MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-17 20:45:32,548 INFO L158 Benchmark]: CACSL2BoogieTranslator took 741.34ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 36.3MB in the beginning and 50.2MB in the end (delta: -13.9MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. [2024-10-17 20:45:32,548 INFO L158 Benchmark]: Boogie Procedure Inliner took 55.86ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 47.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-17 20:45:32,549 INFO L158 Benchmark]: Boogie Preprocessor took 34.89ms. Allocated memory is still 86.0MB. Free memory was 47.1MB in the beginning and 45.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-10-17 20:45:32,549 INFO L158 Benchmark]: RCFGBuilder took 775.45ms. Allocated memory is still 86.0MB. Free memory was 45.0MB in the beginning and 50.4MB in the end (delta: -5.3MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. [2024-10-17 20:45:32,549 INFO L158 Benchmark]: TraceAbstraction took 3754.55ms. Allocated memory was 86.0MB in the beginning and 134.2MB in the end (delta: 48.2MB). Free memory was 49.2MB in the beginning and 55.5MB in the end (delta: -6.4MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. [2024-10-17 20:45:32,549 INFO L158 Benchmark]: Witness Printer took 3.13ms. Allocated memory is still 134.2MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-10-17 20:45:32,551 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25ms. Allocated memory is still 41.9MB. Free memory is still 18.4MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 741.34ms. Allocated memory was 65.0MB in the beginning and 86.0MB in the end (delta: 21.0MB). Free memory was 36.3MB in the beginning and 50.2MB in the end (delta: -13.9MB). Peak memory consumption was 20.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 55.86ms. Allocated memory is still 86.0MB. Free memory was 50.2MB in the beginning and 47.6MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 34.89ms. Allocated memory is still 86.0MB. Free memory was 47.1MB in the beginning and 45.0MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 775.45ms. Allocated memory is still 86.0MB. Free memory was 45.0MB in the beginning and 50.4MB in the end (delta: -5.3MB). Peak memory consumption was 27.6MB. Max. memory is 16.1GB. * TraceAbstraction took 3754.55ms. Allocated memory was 86.0MB in the beginning and 134.2MB in the end (delta: 48.2MB). Free memory was 49.2MB in the beginning and 55.5MB in the end (delta: -6.4MB). Peak memory consumption was 43.7MB. Max. memory is 16.1GB. * Witness Printer took 3.13ms. Allocated memory is still 134.2MB. Free memory is still 55.5MB. There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2321, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 163, dependent conditional: 131, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 83, dependent conditional: 19, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1213, independent: 1177, independent conditional: 2, independent unconditional: 1175, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1213, independent: 1146, independent conditional: 0, independent unconditional: 1146, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1586, independent: 775, independent conditional: 48, independent unconditional: 728, dependent: 811, dependent conditional: 77, dependent unconditional: 733, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2241, independent: 981, independent conditional: 0, independent unconditional: 981, dependent: 47, dependent conditional: 2, dependent unconditional: 45, unknown: 1213, unknown conditional: 6, unknown unconditional: 1207] , Statistics on independence cache: Total cache size (in pairs): 1213, Positive cache size: 1177, Positive conditional cache size: 2, Positive unconditional cache size: 1175, Negative cache size: 36, Negative conditional cache size: 4, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 904, Maximal queried relation: 2, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 83, dependent conditional: 19, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1213, independent: 1177, independent conditional: 2, independent unconditional: 1175, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1213, independent: 1146, independent conditional: 0, independent unconditional: 1146, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1586, independent: 775, independent conditional: 48, independent unconditional: 728, dependent: 811, dependent conditional: 77, dependent unconditional: 733, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2241, independent: 981, independent conditional: 0, independent unconditional: 981, dependent: 47, dependent conditional: 2, dependent unconditional: 45, unknown: 1213, unknown conditional: 6, unknown unconditional: 1207] , Statistics on independence cache: Total cache size (in pairs): 1213, Positive cache size: 1177, Positive conditional cache size: 2, Positive unconditional cache size: 1175, Negative cache size: 36, Negative conditional cache size: 4, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 904 ], Independence queries for same thread: 125, Persistent sets #1 benchmarks: Persistent set computation time: 1.6s, Number of persistent set computation: 220, Number of trivial persistent sets: 173, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 1297, independent: 1265, independent conditional: 0, independent unconditional: 1265, dependent: 32, dependent conditional: 0, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2321, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 163, dependent conditional: 131, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 2196, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 38, dependent conditional: 6, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 83, dependent conditional: 19, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1213, independent: 1177, independent conditional: 2, independent unconditional: 1175, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1213, independent: 1146, independent conditional: 0, independent unconditional: 1146, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1586, independent: 775, independent conditional: 48, independent unconditional: 728, dependent: 811, dependent conditional: 77, dependent unconditional: 733, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2241, independent: 981, independent conditional: 0, independent unconditional: 981, dependent: 47, dependent conditional: 2, dependent unconditional: 45, unknown: 1213, unknown conditional: 6, unknown unconditional: 1207] , Statistics on independence cache: Total cache size (in pairs): 1213, Positive cache size: 1177, Positive conditional cache size: 2, Positive unconditional cache size: 1175, Negative cache size: 36, Negative conditional cache size: 4, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 904, Maximal queried relation: 2, ConditionTransformingIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 893, independent unconditional: 1265, dependent: 83, dependent conditional: 19, dependent unconditional: 64, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 2241, independent: 2158, independent conditional: 2, independent unconditional: 2156, dependent: 83, dependent conditional: 6, dependent unconditional: 77, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 1213, independent: 1177, independent conditional: 2, independent unconditional: 1175, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 1213, independent: 1146, independent conditional: 0, independent unconditional: 1146, dependent: 67, dependent conditional: 0, dependent unconditional: 67, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 67, independent: 31, independent conditional: 2, independent unconditional: 29, dependent: 36, dependent conditional: 4, dependent unconditional: 32, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 1586, independent: 775, independent conditional: 48, independent unconditional: 728, dependent: 811, dependent conditional: 77, dependent unconditional: 733, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 2241, independent: 981, independent conditional: 0, independent unconditional: 981, dependent: 47, dependent conditional: 2, dependent unconditional: 45, unknown: 1213, unknown conditional: 6, unknown unconditional: 1207] , Statistics on independence cache: Total cache size (in pairs): 1213, Positive cache size: 1177, Positive conditional cache size: 2, Positive unconditional cache size: 1175, Negative cache size: 36, Negative conditional cache size: 4, Negative unconditional cache size: 32, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 904 ], Independence queries for same thread: 125 - UnprovableResult [Line: 1272]: Unable to prove that a call to reach_error is unreachable Unable to prove that a call to reach_error is unreachable Reason: overapproximation of sscanf at line 1284. Possible FailurePath: [L1236] 0 static int iTThreads = 2; [L1237] 0 static int iRThreads = 1; [L1238] 0 static int data1Value = 0; [L1239] 0 static int data2Value = 0; [L1240] 0 pthread_mutex_t *data1Lock; [L1241] 0 pthread_mutex_t *data2Lock; [L1278] 0 int i,err; [L1279] COND TRUE 0 argc != 1 [L1280] COND FALSE 0 !(argc != 3) [L1288] COND FALSE 0 !(iTThreads > 100000 || iRThreads > 100000) [L1291] 0 data1Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1292] 0 data2Lock = (pthread_mutex_t *) malloc(sizeof(pthread_mutex_t)) [L1293] EXPR 0 err = pthread_mutex_init(data1Lock, ((void *)0)) [L1293] COND FALSE 0 !(0 != (err = pthread_mutex_init(data1Lock, ((void *)0)))) [L1297] EXPR 0 err = pthread_mutex_init(data2Lock, ((void *)0)) [L1297] COND FALSE 0 !(0 != (err = pthread_mutex_init(data2Lock, ((void *)0)))) [L1301] 0 pthread_t tPool[iTThreads]; [L1302] 0 pthread_t rPool[iRThreads]; [L1303] 0 i = 0 VAL [\old(argc)=3, \old(argv)={7:5}, argc=3, data1Lock={3:0}, data1Value=0, data2Lock={6:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, rPool={15:0}, tPool={23:0}] [L1303] COND TRUE 0 i < iTThreads [L1304] EXPR, FCALL, FORK 0 pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) VAL [\old(argc)=3, \old(argv)={7:5}, \old(param)={0:0}, argc=3, data1Lock={3:0}, data1Value=0, data2Lock={6:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, rPool={15:0}, tPool={23:0}] [L1245] 1 int t1 = -1; VAL [\old(param)={0:0}, data1Lock={3:0}, data1Value=0, data2Lock={6:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, t1=-1] [L1247] 1 data1Value = 1 VAL [\old(param)={0:0}, data1Lock={3:0}, data1Value=1, data2Lock={6:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, t1=-1] [L1250] 1 t1 = data1Value VAL [\old(param)={0:0}, data1Lock={3:0}, data1Value=1, data2Lock={6:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, t1=1] [L1304] EXPR 0 err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)) [L1304] COND FALSE 0 !(0 != (err = pthread_create(&tPool[i], ((void *)0), &funcA, ((void *)0)))) [L1303] 0 i++ VAL [\old(argc)=3, \old(argv)={7:5}, \old(param)={0:0}, argc=3, data1Lock={3:0}, data1Value=1, data2Lock={6:0}, data2Value=0, err=0, i=1, iRThreads=2, iTThreads=1, param={0:0}, rPool={15:0}, t1=1, tPool={23:0}] [L1303] COND FALSE 0 !(i < iTThreads) [L1309] 0 i = 0 VAL [\old(argc)=3, \old(argv)={7:5}, \old(param)={0:0}, argc=3, data1Lock={3:0}, data1Value=1, data2Lock={6:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, param={0:0}, rPool={15:0}, t1=1, tPool={23:0}] [L1309] COND TRUE 0 i < iRThreads [L1310] FCALL, FORK 0 pthread_create(&rPool[i], ((void *)0), &funcB, ((void *)0)) VAL [\old(argc)=3, \old(argv)={7:5}, \old(param)={0:0}, \old(param)={0:0}, argc=3, data1Lock={3:0}, data1Value=1, data2Lock={6:0}, data2Value=0, err=0, i=0, iRThreads=2, iTThreads=1, param={0:0}, rPool={15:0}, t1=1, tPool={23:0}] [L1258] 2 int t1 = -1; [L1259] 2 int t2 = -1; VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={3:0}, data1Value=1, data2Lock={6:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=-1, t1=1, t2=-1] [L1261] COND FALSE 2 !(data1Value == 0) [L1265] 2 t1 = data1Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={3:0}, data1Value=1, data2Lock={6:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=-1] [L1268] 2 t2 = data2Value VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={3:0}, data1Value=1, data2Lock={6:0}, data2Value=0, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1253] 1 data2Value = t1 + 1 VAL [\old(param)={0:0}, \old(param)={0:0}, data1Lock={3:0}, data1Value=1, data2Lock={6:0}, data2Value=2, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] [L1255] 1 return ((void *)0); [L1270] COND TRUE 2 t2 != (t1 + 1) [L1272] 2 reach_error() VAL [\old(param)={0:0}, \old(param)={0:0}, \result={0:0}, data1Lock={3:0}, data1Value=1, data2Lock={6:0}, data2Value=2, iRThreads=2, iTThreads=1, param={0:0}, param={0:0}, t1=1, t1=1, t2=0] - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: funcBThread1of1ForFork1 with 1 thread instances CFG has 5 procedures, 80 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 3.5s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 3, EmptinessCheckTime: 2.1s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 11, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 96 NumberOfCodeBlocks, 96 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 62 ConstructedInterpolants, 0 QuantifiedInterpolants, 365 SizeOfPredicates, 4 NumberOfNonLiveVariables, 288 ConjunctsInSsa, 13 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 2/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available, ConComCheckerStatistics: ConditionalCommutativityOverallTime: 0.0s, ConditionalCommutativityCheckTime: 0.0s, ConditionalCommutativityIAIntegrations: 0, ConditionalCommutativityDFSRestarts: 0, ConditionalCommutativityCommutingCounterexamples: 0, ConditionalCommutativityConditionCalculations: 0, ConditionalCommutativityTraceChecks: 0, ConditionalCommutativityImperfectProofs: 0 RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2024-10-17 20:45:32,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2024-10-17 20:45:32,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample