./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 01849734 Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/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_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-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 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 --- Real Ultimate output --- This is Ultimate 0.3.0-dev-0184973-m [2025-04-24 16:32:49,830 INFO L188 SettingsManager]: Resetting all preferences to default values... [2025-04-24 16:32:49,933 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2025-04-24 16:32:49,939 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2025-04-24 16:32:49,940 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2025-04-24 16:32:49,961 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2025-04-24 16:32:49,962 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2025-04-24 16:32:49,963 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2025-04-24 16:32:49,963 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2025-04-24 16:32:49,963 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2025-04-24 16:32:49,964 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2025-04-24 16:32:49,964 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2025-04-24 16:32:49,964 INFO L153 SettingsManager]: * Use SBE=true [2025-04-24 16:32:49,964 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * sizeof long=4 [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * sizeof POINTER=4 [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * sizeof long double=12 [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2025-04-24 16:32:49,965 INFO L153 SettingsManager]: * Behaviour of calls to undefined functions=OVERAPPROXIMATE_BEHAVIOUR [2025-04-24 16:32:49,966 INFO L153 SettingsManager]: * Use constant arrays=true [2025-04-24 16:32:49,966 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2025-04-24 16:32:49,966 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 16:32:49,966 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 16:32:49,966 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 16:32:49,966 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:32:49,967 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2025-04-24 16:32:49,967 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2025-04-24 16:32:49,967 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2025-04-24 16:32:49,967 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2025-04-24 16:32:49,967 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:32:49,967 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2025-04-24 16:32:49,967 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2025-04-24 16:32:49,967 INFO L153 SettingsManager]: * Compute procedure contracts=false [2025-04-24 16:32:49,967 INFO L153 SettingsManager]: * Commutativity condition synthesis=NECESSARY_AND_SUFFICIENT [2025-04-24 16:32:49,967 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2025-04-24 16:32:49,968 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2025-04-24 16:32:49,968 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2025-04-24 16:32:49,968 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2025-04-24 16:32:49,968 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2025-04-24 16:32:49,968 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2025-04-24 16:32:49,969 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2025-04-24 16:32:49,969 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 44de34ccc7195f8ba562241ad79de4cb2add35f6ad2c59de465184820d6f6382 [2025-04-24 16:32:50,221 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2025-04-24 16:32:50,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2025-04-24 16:32:50,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2025-04-24 16:32:50,229 INFO L270 PluginConnector]: Initializing CDTParser... [2025-04-24 16:32:50,229 INFO L274 PluginConnector]: CDTParser initialized [2025-04-24 16:32:50,230 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2025-04-24 16:32:51,473 INFO L538 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5c02dd9e6/ddac6117c282440f99822fb0be71bbc2/FLAG44c6d5f77 [2025-04-24 16:32:51,739 INFO L389 CDTParser]: Found 1 translation units. [2025-04-24 16:32:51,740 INFO L178 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i [2025-04-24 16:32:51,756 INFO L432 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5c02dd9e6/ddac6117c282440f99822fb0be71bbc2/FLAG44c6d5f77 [2025-04-24 16:32:52,473 INFO L440 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/5c02dd9e6/ddac6117c282440f99822fb0be71bbc2 [2025-04-24 16:32:52,475 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2025-04-24 16:32:52,476 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2025-04-24 16:32:52,477 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2025-04-24 16:32:52,477 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2025-04-24 16:32:52,480 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2025-04-24 16:32:52,480 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:52,481 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13ac7fcc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52, skipping insertion in model container [2025-04-24 16:32:52,481 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:52,510 INFO L175 MainTranslator]: Built tables and reachable declarations [2025-04-24 16:32:52,645 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2025-04-24 16:32:52,827 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 16:32:52,840 INFO L200 MainTranslator]: Completed pre-run [2025-04-24 16:32:52,856 WARN L116 LibraryModelHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-C-DAC/pthread-demo-datarace-3.i[818,831] [2025-04-24 16:32:52,911 INFO L210 PostProcessor]: Analyzing one entry point: main [2025-04-24 16:32:52,968 INFO L204 MainTranslator]: Completed translation [2025-04-24 16:32:52,968 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52 WrapperNode [2025-04-24 16:32:52,968 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2025-04-24 16:32:52,969 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2025-04-24 16:32:52,969 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2025-04-24 16:32:52,969 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2025-04-24 16:32:52,973 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:52,990 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,015 INFO L138 Inliner]: procedures = 364, calls = 14, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 111 [2025-04-24 16:32:53,017 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2025-04-24 16:32:53,018 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2025-04-24 16:32:53,018 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2025-04-24 16:32:53,018 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2025-04-24 16:32:53,024 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,024 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,029 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,030 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,037 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,038 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,040 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,045 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,046 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,048 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2025-04-24 16:32:53,051 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2025-04-24 16:32:53,052 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2025-04-24 16:32:53,052 INFO L274 PluginConnector]: RCFGBuilder initialized [2025-04-24 16:32:53,053 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (1/1) ... [2025-04-24 16:32:53,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2025-04-24 16:32:53,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:32:53,078 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2025-04-24 16:32:53,084 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2025-04-24 16:32:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2025-04-24 16:32:53,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2025-04-24 16:32:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure thread_function_datarace [2025-04-24 16:32:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure thread_function_datarace [2025-04-24 16:32:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2025-04-24 16:32:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2025-04-24 16:32:53,100 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2025-04-24 16:32:53,100 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2025-04-24 16:32:53,101 WARN L203 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2025-04-24 16:32:53,221 INFO L234 CfgBuilder]: Building ICFG [2025-04-24 16:32:53,222 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2025-04-24 16:32:53,390 INFO L279 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2025-04-24 16:32:53,391 INFO L283 CfgBuilder]: Performing block encoding [2025-04-24 16:32:53,614 INFO L307 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2025-04-24 16:32:53,614 INFO L312 CfgBuilder]: Removed 0 assume(true) statements. [2025-04-24 16:32:53,614 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:32:53 BoogieIcfgContainer [2025-04-24 16:32:53,615 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2025-04-24 16:32:53,616 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2025-04-24 16:32:53,616 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2025-04-24 16:32:53,619 INFO L274 PluginConnector]: TraceAbstraction initialized [2025-04-24 16:32:53,619 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.04 04:32:52" (1/3) ... [2025-04-24 16:32:53,620 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a45bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 04:32:53, skipping insertion in model container [2025-04-24 16:32:53,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.04 04:32:52" (2/3) ... [2025-04-24 16:32:53,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@58a45bc9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.04 04:32:53, skipping insertion in model container [2025-04-24 16:32:53,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:32:53" (3/3) ... [2025-04-24 16:32:53,622 INFO L128 eAbstractionObserver]: Analyzing ICFG pthread-demo-datarace-3.i [2025-04-24 16:32:53,648 INFO L217 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2025-04-24 16:32:53,650 INFO L151 ceAbstractionStarter]: Applying trace abstraction to ICFG pthread-demo-datarace-3.i that has 2 procedures, 20 locations, 21 edges, 1 initial locations, 2 loop locations, and 1 error locations. [2025-04-24 16:32:53,651 INFO L490 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2025-04-24 16:32:53,681 INFO L143 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2025-04-24 16:32:53,709 INFO L125 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:32:53,709 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2025-04-24 16:32:53,709 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:32:53,712 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) [2025-04-24 16:32:53,713 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 [2025-04-24 16:32:53,775 INFO L177 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2025-04-24 16:32:53,787 INFO L339 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2025-04-24 16:32:53,794 INFO L340 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;@398f1228, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2025-04-24 16:32:53,794 INFO L341 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2025-04-24 16:32:53,831 INFO L403 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:32:53,831 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:32:53,831 INFO L139 ounterexampleChecker]: Examining path program with hash -1536592219, occurence #1 [2025-04-24 16:32:53,831 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:32:53,831 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:32:53,834 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:32:53,835 INFO L85 PathProgramCache]: Analyzing trace with hash 1658562641, now seen corresponding path program 1 times [2025-04-24 16:32:53,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:32:53,840 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117903229] [2025-04-24 16:32:53,841 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:32:53,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:32:53,932 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 15 statements into 1 equivalence classes. [2025-04-24 16:32:53,960 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 15 of 15 statements. [2025-04-24 16:32:53,967 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:32:53,967 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:32:54,090 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:54,090 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:32:54,090 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117903229] [2025-04-24 16:32:54,091 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117903229] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:32:54,091 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:32:54,091 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2025-04-24 16:32:54,091 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1400164351] [2025-04-24 16:32:54,092 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:32:54,094 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2025-04-24 16:32:54,094 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:32:54,107 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2025-04-24 16:32:54,107 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2025-04-24 16:32:54,108 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:54,109 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:32:54,110 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 3 states have internal predecessors, (15), 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) [2025-04-24 16:32:54,110 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:54,168 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:54,168 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2025-04-24 16:32:54,168 INFO L403 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:32:54,168 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:32:54,168 INFO L139 ounterexampleChecker]: Examining path program with hash -274042613, occurence #1 [2025-04-24 16:32:54,168 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:32:54,168 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:32:54,169 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:32:54,169 INFO L85 PathProgramCache]: Analyzing trace with hash -1408822025, now seen corresponding path program 1 times [2025-04-24 16:32:54,169 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:32:54,169 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [690194696] [2025-04-24 16:32:54,169 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:32:54,169 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:32:54,197 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-04-24 16:32:54,203 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-04-24 16:32:54,203 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:32:54,203 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:32:54,315 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:54,315 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:32:54,315 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [690194696] [2025-04-24 16:32:54,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [690194696] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 16:32:54,315 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1061194916] [2025-04-24 16:32:54,316 INFO L97 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2025-04-24 16:32:54,316 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:32:54,316 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:32:54,318 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) [2025-04-24 16:32:54,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2025-04-24 16:32:54,416 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 23 statements into 1 equivalence classes. [2025-04-24 16:32:54,432 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 23 of 23 statements. [2025-04-24 16:32:54,433 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:32:54,433 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:32:54,434 INFO L256 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 3 conjuncts are in the unsatisfiable core [2025-04-24 16:32:54,437 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 16:32:54,480 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:54,480 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 16:32:54,519 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:54,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1061194916] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 16:32:54,520 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 16:32:54,520 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2025-04-24 16:32:54,520 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944035910] [2025-04-24 16:32:54,520 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 16:32:54,521 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2025-04-24 16:32:54,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:32:54,521 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2025-04-24 16:32:54,521 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2025-04-24 16:32:54,521 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:54,521 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:32:54,522 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 6.714285714285714) internal successors, (47), 7 states have internal predecessors, (47), 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) [2025-04-24 16:32:54,522 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:54,522 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:54,588 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:54,590 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:32:54,597 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2025-04-24 16:32:54,794 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2025-04-24 16:32:54,794 INFO L403 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:32:54,794 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:32:54,794 INFO L139 ounterexampleChecker]: Examining path program with hash -274042613, occurence #2 [2025-04-24 16:32:54,794 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 16:32:54,795 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 16:32:54,797 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:32:54,797 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 16:32:54,797 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:54,797 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 16:32:54,797 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:54,798 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-24 16:32:54,798 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:54,798 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 16:32:54,798 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:54,798 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 43 [2025-04-24 16:32:54,798 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:32:54,798 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 44 [2025-04-24 16:32:54,798 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:54,798 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 16:32:54,798 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:32:54,798 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:32:54,798 INFO L85 PathProgramCache]: Analyzing trace with hash 2019112681, now seen corresponding path program 2 times [2025-04-24 16:32:54,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:32:54,798 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1396996034] [2025-04-24 16:32:54,799 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 16:32:54,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:32:54,816 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-04-24 16:32:54,838 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 47 of 47 statements. [2025-04-24 16:32:54,838 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 16:32:54,838 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:32:54,993 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:54,993 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:32:54,993 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1396996034] [2025-04-24 16:32:54,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1396996034] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 16:32:54,993 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [313248292] [2025-04-24 16:32:54,993 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2025-04-24 16:32:54,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:32:54,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:32:54,998 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 16:32:54,999 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2025-04-24 16:32:55,104 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 partitioned 47 statements into 2 equivalence classes. [2025-04-24 16:32:55,133 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) and asserted 47 of 47 statements. [2025-04-24 16:32:55,133 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2025-04-24 16:32:55,133 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:32:55,135 INFO L256 TraceCheckSpWp]: Trace formula consists of 184 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-24 16:32:55,136 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 16:32:55,225 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:55,225 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 16:32:55,340 INFO L134 CoverageAnalysis]: Checked inductivity of 72 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:55,341 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [313248292] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 16:32:55,341 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 16:32:55,341 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8, 8] total 19 [2025-04-24 16:32:55,341 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737768434] [2025-04-24 16:32:55,341 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 16:32:55,341 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2025-04-24 16:32:55,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:32:55,342 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2025-04-24 16:32:55,342 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=111, Invalid=231, Unknown=0, NotChecked=0, Total=342 [2025-04-24 16:32:55,342 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:55,342 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:32:55,343 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 6.7894736842105265) internal successors, (129), 19 states have internal predecessors, (129), 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) [2025-04-24 16:32:55,343 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:55,343 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:32:55,343 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:55,535 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:55,536 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:32:55,536 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 16:32:55,542 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2025-04-24 16:32:55,737 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:32:55,737 INFO L403 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:32:55,737 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:32:55,737 INFO L139 ounterexampleChecker]: Examining path program with hash 1227406811, occurence #1 [2025-04-24 16:32:55,737 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:32:55,737 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:32:55,738 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:32:55,738 INFO L85 PathProgramCache]: Analyzing trace with hash -2057975057, now seen corresponding path program 3 times [2025-04-24 16:32:55,738 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:32:55,738 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [618000412] [2025-04-24 16:32:55,738 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 16:32:55,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:32:55,756 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 85 statements into 7 equivalence classes. [2025-04-24 16:32:55,795 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 80 of 85 statements. [2025-04-24 16:32:55,795 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-24 16:32:55,795 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:32:55,944 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-04-24 16:32:55,944 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:32:55,944 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [618000412] [2025-04-24 16:32:55,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [618000412] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 16:32:55,945 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [569898902] [2025-04-24 16:32:55,945 INFO L95 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2025-04-24 16:32:55,945 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:32:55,945 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:32:55,947 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 16:32:55,949 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2025-04-24 16:32:56,036 INFO L108 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 partitioned 85 statements into 7 equivalence classes. [2025-04-24 16:32:56,075 INFO L111 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) and asserted 80 of 85 statements. [2025-04-24 16:32:56,076 INFO L114 AnnotateAndAsserter]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2025-04-24 16:32:56,076 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:32:56,077 INFO L256 TraceCheckSpWp]: Trace formula consists of 243 conjuncts, 7 conjuncts are in the unsatisfiable core [2025-04-24 16:32:56,079 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 16:32:56,143 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-04-24 16:32:56,143 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 16:32:56,250 INFO L134 CoverageAnalysis]: Checked inductivity of 191 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2025-04-24 16:32:56,250 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [569898902] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 16:32:56,250 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 16:32:56,250 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 15 [2025-04-24 16:32:56,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740822191] [2025-04-24 16:32:56,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 16:32:56,251 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2025-04-24 16:32:56,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:32:56,251 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2025-04-24 16:32:56,251 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=105, Unknown=0, NotChecked=0, Total=210 [2025-04-24 16:32:56,251 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:56,251 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:32:56,252 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 7.733333333333333) internal successors, (116), 15 states have internal predecessors, (116), 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) [2025-04-24 16:32:56,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:56,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:32:56,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 16:32:56,252 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:56,369 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:56,369 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:32:56,369 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 16:32:56,369 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 16:32:56,376 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2025-04-24 16:32:56,574 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:32:56,574 INFO L403 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:32:56,574 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:32:56,574 INFO L139 ounterexampleChecker]: Examining path program with hash -274042613, occurence #3 [2025-04-24 16:32:56,574 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 16:32:56,574 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 16:32:56,574 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:32:56,574 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 16:32:56,574 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 97 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 107 [2025-04-24 16:32:56,575 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:32:56,575 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 108 [2025-04-24 16:32:56,575 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:56,575 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 16:32:56,575 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:32:56,576 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:32:56,576 INFO L85 PathProgramCache]: Analyzing trace with hash -940362727, now seen corresponding path program 4 times [2025-04-24 16:32:56,576 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:32:56,576 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646142191] [2025-04-24 16:32:56,576 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 16:32:56,576 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:32:56,594 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 111 statements into 2 equivalence classes. [2025-04-24 16:32:56,629 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-04-24 16:32:56,630 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 16:32:56,630 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:32:56,902 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:56,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:32:56,902 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646142191] [2025-04-24 16:32:56,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [646142191] provided 0 perfect and 1 imperfect interpolant sequences [2025-04-24 16:32:56,902 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1851590669] [2025-04-24 16:32:56,902 INFO L95 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2025-04-24 16:32:56,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:32:56,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2025-04-24 16:32:56,904 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2025-04-24 16:32:56,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2025-04-24 16:32:56,984 INFO L108 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST partitioned 111 statements into 2 equivalence classes. [2025-04-24 16:32:57,010 INFO L111 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) and asserted 111 of 111 statements. [2025-04-24 16:32:57,011 INFO L114 AnnotateAndAsserter]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 2 check-sat command(s) [2025-04-24 16:32:57,011 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:32:57,012 INFO L256 TraceCheckSpWp]: Trace formula consists of 296 conjuncts, 14 conjuncts are in the unsatisfiable core [2025-04-24 16:32:57,014 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2025-04-24 16:32:57,136 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:57,137 INFO L312 TraceCheckSpWp]: Computing backward predicates... [2025-04-24 16:32:57,382 INFO L134 CoverageAnalysis]: Checked inductivity of 600 backedges. 0 proven. 600 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:57,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1851590669] provided 0 perfect and 2 imperfect interpolant sequences [2025-04-24 16:32:57,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2025-04-24 16:32:57,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 22 [2025-04-24 16:32:57,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001287874] [2025-04-24 16:32:57,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2025-04-24 16:32:57,383 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2025-04-24 16:32:57,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:32:57,383 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2025-04-24 16:32:57,383 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=231, Invalid=231, Unknown=0, NotChecked=0, Total=462 [2025-04-24 16:32:57,383 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:57,384 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:32:57,384 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 7.681818181818182) internal successors, (169), 22 states have internal predecessors, (169), 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) [2025-04-24 16:32:57,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:57,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:32:57,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 16:32:57,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 16:32:57,384 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:57,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:57,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:32:57,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 16:32:57,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 16:32:57,543 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 16:32:57,550 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2025-04-24 16:32:57,743 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2025-04-24 16:32:57,744 INFO L403 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:32:57,744 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:32:57,744 INFO L139 ounterexampleChecker]: Examining path program with hash -274042613, occurence #4 [2025-04-24 16:32:57,744 INFO L145 ounterexampleChecker]: Trying to synthesize and prove commutativity condition. [2025-04-24 16:32:57,744 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 1 [2025-04-24 16:32:57,744 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:32:57,744 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 9 [2025-04-24 16:32:57,744 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,744 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 17 [2025-04-24 16:32:57,744 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,744 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 25 [2025-04-24 16:32:57,744 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 33 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 41 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 49 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 57 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 65 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 73 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 81 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 89 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 97 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 105 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 113 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 121 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,745 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 129 [2025-04-24 16:32:57,745 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,746 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 137 [2025-04-24 16:32:57,746 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,746 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 145 [2025-04-24 16:32:57,746 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,746 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 153 [2025-04-24 16:32:57,746 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,746 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 161 [2025-04-24 16:32:57,746 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,746 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 171 [2025-04-24 16:32:57,746 WARN L190 ounterexampleChecker]: Statements were already independent. [2025-04-24 16:32:57,746 INFO L166 ounterexampleChecker]: Performing commutativity condition check at non-minimality point 172 [2025-04-24 16:32:57,746 INFO L209 ounterexampleChecker]: No commutativity condition found. [2025-04-24 16:32:57,746 WARN L214 ounterexampleChecker]: Failed to synthesize and prove commutativity condition. [2025-04-24 16:32:57,746 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:32:57,747 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:32:57,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1660178103, now seen corresponding path program 5 times [2025-04-24 16:32:57,747 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:32:57,747 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707653917] [2025-04-24 16:32:57,747 INFO L95 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2025-04-24 16:32:57,747 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:32:57,763 INFO L108 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 partitioned 175 statements into 21 equivalence classes. [2025-04-24 16:32:57,798 INFO L111 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) and asserted 175 of 175 statements. [2025-04-24 16:32:57,798 INFO L114 AnnotateAndAsserter]: Assert order INSIDE_LOOP_FIRST1 issued 21 check-sat command(s) [2025-04-24 16:32:57,798 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is unsat [2025-04-24 16:32:58,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1640 backedges. 1640 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2025-04-24 16:32:58,280 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2025-04-24 16:32:58,280 INFO L324 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707653917] [2025-04-24 16:32:58,280 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707653917] provided 1 perfect and 0 imperfect interpolant sequences [2025-04-24 16:32:58,280 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2025-04-24 16:32:58,281 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [23] imperfect sequences [] total 23 [2025-04-24 16:32:58,281 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603489815] [2025-04-24 16:32:58,281 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2025-04-24 16:32:58,281 INFO L562 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2025-04-24 16:32:58,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2025-04-24 16:32:58,282 INFO L144 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2025-04-24 16:32:58,282 INFO L146 InterpolantAutomaton]: CoverageRelationStatistics Valid=253, Invalid=253, Unknown=0, NotChecked=0, Total=506 [2025-04-24 16:32:58,282 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:58,282 INFO L485 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2025-04-24 16:32:58,283 INFO L486 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 7.608695652173913) internal successors, (175), 23 states have internal predecessors, (175), 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) [2025-04-24 16:32:58,283 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:58,283 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:32:58,283 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2025-04-24 16:32:58,283 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2025-04-24 16:32:58,283 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 22 states. [2025-04-24 16:32:58,283 INFO L153 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2025-04-24 16:32:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2025-04-24 16:32:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2025-04-24 16:32:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2025-04-24 16:32:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2025-04-24 16:32:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2025-04-24 16:32:58,462 INFO L140 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2025-04-24 16:32:58,463 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2025-04-24 16:32:58,463 INFO L403 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2025-04-24 16:32:58,463 INFO L305 artialOrderCegarLoop]: Trying commutativity condition synthesis. [2025-04-24 16:32:58,463 INFO L139 ounterexampleChecker]: Examining path program with hash -1447714144, occurence #1 [2025-04-24 16:32:58,463 INFO L141 ounterexampleChecker]: Commutativity condition synthesis is only active after more than 2 occurrences. Skipping... [2025-04-24 16:32:58,463 INFO L316 artialOrderCegarLoop]: No commutativity proof found, falling back to feasibility check. [2025-04-24 16:32:58,463 INFO L155 PredicateUnifier]: Initialized classic predicate unifier [2025-04-24 16:32:58,464 INFO L85 PathProgramCache]: Analyzing trace with hash -799354900, now seen corresponding path program 6 times [2025-04-24 16:32:58,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2025-04-24 16:32:58,464 INFO L324 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449421375] [2025-04-24 16:32:58,464 INFO L95 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2025-04-24 16:32:58,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2025-04-24 16:32:58,478 INFO L108 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE partitioned 170 statements into 21 equivalence classes. [2025-04-24 16:32:58,525 INFO L111 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) and asserted 170 of 170 statements. [2025-04-24 16:32:58,525 INFO L114 AnnotateAndAsserter]: Assert order MIX_INSIDE_OUTSIDE issued 21 check-sat command(s) [2025-04-24 16:32:58,525 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 16:32:58,525 INFO L348 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2025-04-24 16:32:58,531 INFO L108 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY partitioned 170 statements into 1 equivalence classes. [2025-04-24 16:32:58,557 INFO L111 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) and asserted 170 of 170 statements. [2025-04-24 16:32:58,557 INFO L114 AnnotateAndAsserter]: Assert order NOT_INCREMENTALLY issued 1 check-sat command(s) [2025-04-24 16:32:58,557 INFO L115 AnnotateAndAsserter]: Conjunction of SSA is sat [2025-04-24 16:32:58,609 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2025-04-24 16:32:58,609 INFO L340 BasicCegarLoop]: Counterexample is feasible [2025-04-24 16:32:58,609 INFO L790 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (1 of 2 remaining) [2025-04-24 16:32:58,611 INFO L790 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 2 remaining) [2025-04-24 16:32:58,611 WARN L466 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2025-04-24 16:32:58,615 INFO L422 BasicCegarLoop]: Path program histogram: [6, 1] [2025-04-24 16:32:58,733 INFO L242 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2025-04-24 16:32:58,733 INFO L171 ceAbstractionStarter]: Computing trace abstraction results [2025-04-24 16:32:58,742 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 [2025-04-24 16:32:58,742 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.04 04:32:58 BasicIcfg [2025-04-24 16:32:58,742 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2025-04-24 16:32:58,743 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2025-04-24 16:32:58,743 INFO L270 PluginConnector]: Initializing Witness Printer... [2025-04-24 16:32:58,743 INFO L274 PluginConnector]: Witness Printer initialized [2025-04-24 16:32:58,743 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.04 04:32:53" (3/4) ... [2025-04-24 16:32:58,744 INFO L140 WitnessPrinter]: Generating witness for reachability counterexample [2025-04-24 16:32:58,856 INFO L127 tionWitnessGenerator]: Generated YAML witness of length 47. [2025-04-24 16:32:58,909 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2025-04-24 16:32:58,909 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2025-04-24 16:32:58,909 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2025-04-24 16:32:58,910 INFO L158 Benchmark]: Toolchain (without parser) took 6433.31ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 89.4MB in the beginning and 62.9MB in the end (delta: 26.5MB). Peak memory consumption was 89.7MB. Max. memory is 16.1GB. [2025-04-24 16:32:58,910 INFO L158 Benchmark]: CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 61.1MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 16:32:58,910 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.26ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 50.0MB in the end (delta: 39.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. [2025-04-24 16:32:58,910 INFO L158 Benchmark]: Boogie Procedure Inliner took 48.70ms. Allocated memory is still 117.4MB. Free memory was 50.0MB in the beginning and 47.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 16:32:58,910 INFO L158 Benchmark]: Boogie Preprocessor took 32.49ms. Allocated memory is still 117.4MB. Free memory was 47.0MB in the beginning and 45.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. [2025-04-24 16:32:58,910 INFO L158 Benchmark]: RCFGBuilder took 563.44ms. Allocated memory is still 117.4MB. Free memory was 45.6MB in the beginning and 40.9MB in the end (delta: 4.6MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. [2025-04-24 16:32:58,911 INFO L158 Benchmark]: TraceAbstraction took 5126.35ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 40.9MB in the beginning and 89.0MB in the end (delta: -48.1MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. [2025-04-24 16:32:58,911 INFO L158 Benchmark]: Witness Printer took 166.47ms. Allocated memory is still 176.2MB. Free memory was 89.0MB in the beginning and 62.9MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2025-04-24 16:32:58,913 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19ms. Allocated memory is still 83.9MB. Free memory was 61.1MB in the beginning and 61.1MB in the end (delta: 36.9kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.26ms. Allocated memory is still 117.4MB. Free memory was 89.4MB in the beginning and 50.0MB in the end (delta: 39.4MB). Peak memory consumption was 33.6MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 48.70ms. Allocated memory is still 117.4MB. Free memory was 50.0MB in the beginning and 47.0MB in the end (delta: 2.9MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 32.49ms. Allocated memory is still 117.4MB. Free memory was 47.0MB in the beginning and 45.6MB in the end (delta: 1.5MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 563.44ms. Allocated memory is still 117.4MB. Free memory was 45.6MB in the beginning and 40.9MB in the end (delta: 4.6MB). Peak memory consumption was 22.1MB. Max. memory is 16.1GB. * TraceAbstraction took 5126.35ms. Allocated memory was 117.4MB in the beginning and 176.2MB in the end (delta: 58.7MB). Free memory was 40.9MB in the beginning and 89.0MB in the end (delta: -48.1MB). Peak memory consumption was 17.2MB. Max. memory is 16.1GB. * Witness Printer took 166.47ms. Allocated memory is still 176.2MB. Free memory was 89.0MB in the beginning and 62.9MB in the end (delta: 26.1MB). Peak memory consumption was 25.2MB. 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: 1474, independent: 909, independent conditional: 833, independent unconditional: 76, dependent: 565, dependent conditional: 562, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 912, independent: 909, independent conditional: 833, independent unconditional: 76, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 912, independent: 909, independent conditional: 833, independent unconditional: 76, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 912, independent: 909, independent conditional: 833, independent unconditional: 76, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 912, independent: 909, independent conditional: 0, independent unconditional: 909, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 912, independent: 909, independent conditional: 0, independent unconditional: 909, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 69, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 69, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 912, independent: 843, independent conditional: 0, independent unconditional: 843, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 69, unknown conditional: 0, unknown unconditional: 69] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 833, Maximal queried relation: 0, Independence queries for same thread: 562, Persistent sets #1 benchmarks: Persistent set computation time: 0.0s, Number of persistent set computation: 26, Number of trivial persistent sets: 22, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 79, independent: 76, independent conditional: 0, independent unconditional: 76, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 1474, independent: 909, independent conditional: 833, independent unconditional: 76, dependent: 565, dependent conditional: 562, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 912, independent: 909, independent conditional: 833, independent unconditional: 76, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 912, independent: 909, independent conditional: 833, independent unconditional: 76, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 912, independent: 909, independent conditional: 833, independent unconditional: 76, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 912, independent: 909, independent conditional: 0, independent unconditional: 909, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 912, independent: 909, independent conditional: 0, independent unconditional: 909, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 69, independent: 66, independent conditional: 0, independent unconditional: 66, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 69, independent: 65, independent conditional: 0, independent unconditional: 65, dependent: 4, dependent conditional: 0, dependent unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 4, independent: 1, independent conditional: 0, independent unconditional: 1, dependent: 3, dependent conditional: 0, dependent unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 14, independent: 2, independent conditional: 0, independent unconditional: 2, dependent: 13, dependent conditional: 0, dependent unconditional: 13, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Symbolic Condition Computations: 0, Symbolic Conditions with UNKNOWN Satisfiability: 0, Protected Queries: 0 ], Cache Queries: [ total: 912, independent: 843, independent conditional: 0, independent unconditional: 843, dependent: 0, dependent conditional: 0, dependent unconditional: 0, unknown: 69, unknown conditional: 0, unknown unconditional: 69] , Statistics on independence cache: Total cache size (in pairs): 69, Positive cache size: 66, Positive conditional cache size: 0, Positive unconditional cache size: 66, Negative cache size: 3, Negative conditional cache size: 0, Negative unconditional cache size: 3, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 833, Maximal queried relation: 0, Independence queries for same thread: 562 - CounterExampleResult [Line: 13]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L1320] 0 int myglobal; [L1321] 0 pthread_mutex_t mymutex = { { 0, 0, 0, 0, 0, { { 0, 0 } } } }; [L1340] 0 pthread_t mythread; [L1341] 0 int i; [L1342] FCALL, FORK 0 pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0)) VAL [\at(arg, Pre)={0:0}, myglobal=0, mythread=-1] [L1324] 1 int i,j; [L1325] 1 i=0 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, myglobal=0] [L1342] COND FALSE 0 !(pthread_create( &mythread, ((void *)0), thread_function_datarace, ((void *)0))) [L1352] 0 i=0 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, i=0, myglobal=0, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, myglobal=0] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, j=0, myglobal=0] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, j=1, myglobal=1] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, j=1, myglobal=1] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, i=1, j=1, myglobal=1, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=0, i=1, j=1, myglobal=2, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, i=1, j=1, myglobal=2, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, j=1, myglobal=2] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, j=2, myglobal=2] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, j=3, myglobal=3] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, j=3, myglobal=3] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, i=2, j=3, myglobal=3, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=1, i=2, j=3, myglobal=4, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, i=2, j=3, myglobal=4, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, j=3, myglobal=4] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, j=4, myglobal=4] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, j=5, myglobal=5] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, j=5, myglobal=5] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, i=3, j=5, myglobal=5, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=2, i=3, j=5, myglobal=6, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, i=3, j=5, myglobal=6, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, j=5, myglobal=6] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, j=6, myglobal=6] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, j=7, myglobal=7] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, j=7, myglobal=7] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, i=4, j=7, myglobal=7, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=3, i=4, j=7, myglobal=8, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, i=4, j=7, myglobal=8, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, j=7, myglobal=8] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, j=8, myglobal=8] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, j=9, myglobal=9] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, j=9, myglobal=9] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, i=5, j=9, myglobal=9, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=4, i=5, j=9, myglobal=10, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, i=5, j=9, myglobal=10, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, j=9, myglobal=10] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, j=10, myglobal=10] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, j=11, myglobal=11] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, j=11, myglobal=11] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, i=6, j=11, myglobal=11, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=5, i=6, j=11, myglobal=12, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, i=6, j=11, myglobal=12, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, j=11, myglobal=12] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, j=12, myglobal=12] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, j=13, myglobal=13] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, j=13, myglobal=13] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, i=7, j=13, myglobal=13, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=6, i=7, j=13, myglobal=14, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, i=7, j=13, myglobal=14, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, j=13, myglobal=14] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, j=14, myglobal=14] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, j=15, myglobal=15] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, j=15, myglobal=15] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, i=8, j=15, myglobal=15, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=7, i=8, j=15, myglobal=16, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, i=8, j=15, myglobal=16, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, j=15, myglobal=16] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, j=16, myglobal=16] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, j=17, myglobal=17] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=9, j=17, myglobal=17] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, i=9, j=17, myglobal=17, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=8, i=9, j=17, myglobal=18, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=9, i=9, j=17, myglobal=18, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=9, j=17, myglobal=18] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=9, j=18, myglobal=18] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=9, j=19, myglobal=19] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, j=19, myglobal=19] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, i=9, j=19, myglobal=19, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, i=9, j=19, myglobal=20, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, i=10, j=19, myglobal=20, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, j=19, myglobal=20] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, j=20, myglobal=20] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, j=21, myglobal=21] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, j=21, myglobal=21] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, i=11, j=21, myglobal=21, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=10, i=11, j=21, myglobal=22, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, i=11, j=21, myglobal=22, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, j=21, myglobal=22] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, j=22, myglobal=22] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, j=23, myglobal=23] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, j=23, myglobal=23] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, i=12, j=23, myglobal=23, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=11, i=12, j=23, myglobal=24, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, i=12, j=23, myglobal=24, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, j=23, myglobal=24] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, j=24, myglobal=24] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, j=25, myglobal=25] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, j=25, myglobal=25] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, i=13, j=25, myglobal=25, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=12, i=13, j=25, myglobal=26, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, i=13, j=25, myglobal=26, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, j=25, myglobal=26] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, j=26, myglobal=26] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, j=27, myglobal=27] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, j=27, myglobal=27] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, i=14, j=27, myglobal=27, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=13, i=14, j=27, myglobal=28, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, i=14, j=27, myglobal=28, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, j=27, myglobal=28] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, j=28, myglobal=28] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, j=29, myglobal=29] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, j=29, myglobal=29] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, i=15, j=29, myglobal=29, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=14, i=15, j=29, myglobal=30, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, i=15, j=29, myglobal=30, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, j=29, myglobal=30] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, j=30, myglobal=30] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, j=31, myglobal=31] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, j=31, myglobal=31] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, i=16, j=31, myglobal=31, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=15, i=16, j=31, myglobal=32, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, i=16, j=31, myglobal=32, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, j=31, myglobal=32] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, j=32, myglobal=32] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, j=33, myglobal=33] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, j=33, myglobal=33] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, i=17, j=33, myglobal=33, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=16, i=17, j=33, myglobal=34, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, i=17, j=33, myglobal=34, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, j=33, myglobal=34] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, j=34, myglobal=34] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, j=35, myglobal=35] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, j=35, myglobal=35] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, i=18, j=35, myglobal=35, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=17, i=18, j=35, myglobal=36, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, i=18, j=35, myglobal=36, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, j=35, myglobal=36] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, j=36, myglobal=36] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, j=37, myglobal=37] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, j=37, myglobal=37] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, i=19, j=37, myglobal=37, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=18, i=19, j=37, myglobal=38, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, i=19, j=37, myglobal=38, mythread=-1] [L1325] COND TRUE 1 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, j=37, myglobal=38] [L1328] 1 j=myglobal VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, j=38, myglobal=38] [L1330] 1 j=j+1 [L1333] 1 myglobal=j VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, j=39, myglobal=39] [L1325] 1 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=20, j=39, myglobal=39] [L1352] COND TRUE 0 i<20 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, i=20, j=39, myglobal=39, mythread=-1] [L1355] 0 myglobal=myglobal+1 VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=19, i=20, j=39, myglobal=40, mythread=-1] [L1352] 0 i++ VAL [\at(arg, Pre)={0:0}, arg={0:0}, i=20, i=20, j=39, myglobal=40, mythread=-1] [L1325] COND FALSE 1 !(i<20) [L1336] 1 return ((void *)0); [L1352] COND FALSE 0 !(i<20) VAL [\at(arg, Pre)={0:0}, \result={0:0}, arg={0:0}, i=20, i=20, j=39, myglobal=40, mythread=-1] [L1358] FCALL, JOIN 1 pthread_join ( mythread, ((void *)0) ) VAL [\at(arg, Pre)={0:0}, \result={0:0}, arg={0:0}, i=20, i=20, j=39, myglobal=40, mythread=-1] [L1358] COND FALSE 0 !(pthread_join ( mythread, ((void *)0) )) [L1362] CALL 0 __VERIFIER_assert(myglobal != 40) [L13] COND TRUE 0 !(cond) VAL [\at(arg, Pre)={0:0}, \at(cond, Pre)=0, \result={0:0}, arg={0:0}, cond=0, i=20, j=39, myglobal=40] [L13] 0 reach_error() VAL [\at(arg, Pre)={0:0}, \at(cond, Pre)=0, \result={0:0}, arg={0:0}, cond=0, i=20, j=39, myglobal=40] - UnprovableResult [Line: 1342]: Unable to prove that petrification did provide enough thread instances (tool internal message) Unable to prove that petrification did provide enough thread instances (tool internal message) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 3 procedures, 28 locations, 31 edges, 2 error locations. Started 1 CEGAR loops. OverallTime: 4.8s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.8s, 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: 89, 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: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.1s InterpolantComputationTime, 892 NumberOfCodeBlocks, 882 NumberOfCodeBlocksAsserted, 65 NumberOfCheckSat, 974 ConstructedInterpolants, 0 QuantifiedInterpolants, 2518 SizeOfPredicates, 0 NumberOfNonLiveVariables, 865 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 14 InterpolantComputations, 2 PerfectInterpolantSequences, 1883/4247 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: SuccessfulCommutativityProofs: 0, ConComChecker Statistics: CheckTime [ms]: 2, ConditionCalculationTime [ms]: 0, ConditionCalculations: 39, QuantifiedConditions: 0, TraceChecks: 0, UnknownTraceChecks: 0, UnsatisfiedConditions: 0, ImperfectProofs: 0 RESULT: Ultimate proved your program to be incorrect! [2025-04-24 16:32:58,930 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE