./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version b03bd7cf Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.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 d4dfc0bbdb080812f042fcb42d1e3b37e9e0d49ae456458f71f0b25bb99756b4 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-b03bd7c-m [2024-10-28 16:29:42,900 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-28 16:29:42,991 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-10-28 16:29:43,000 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-28 16:29:43,001 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-28 16:29:43,038 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-28 16:29:43,039 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-28 16:29:43,040 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-28 16:29:43,040 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-28 16:29:43,041 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-28 16:29:43,042 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-28 16:29:43,042 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-28 16:29:43,043 INFO L153 SettingsManager]: * Use SBE=true [2024-10-28 16:29:43,043 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-28 16:29:43,045 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-28 16:29:43,045 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-28 16:29:43,046 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-28 16:29:43,046 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-28 16:29:43,046 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-28 16:29:43,046 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-28 16:29:43,047 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-28 16:29:43,047 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-28 16:29:43,047 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-28 16:29:43,048 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-28 16:29:43,048 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-28 16:29:43,048 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-28 16:29:43,049 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-28 16:29:43,049 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-28 16:29:43,049 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-28 16:29:43,049 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-28 16:29:43,050 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-28 16:29:43,050 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-28 16:29:43,050 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-28 16:29:43,050 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-28 16:29:43,051 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-28 16:29:43,051 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-10-28 16:29:43,051 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-28 16:29:43,051 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-28 16:29:43,052 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-10-28 16:29:43,052 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-10-28 16:29:43,052 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-10-28 16:29:43,054 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d4dfc0bbdb080812f042fcb42d1e3b37e9e0d49ae456458f71f0b25bb99756b4 [2024-10-28 16:29:43,312 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-28 16:29:43,336 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-28 16:29:43,340 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-28 16:29:43,341 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-28 16:29:43,341 INFO L274 PluginConnector]: CDTParser initialized [2024-10-28 16:29:43,343 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i [2024-10-28 16:29:44,719 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-28 16:29:44,948 INFO L384 CDTParser]: Found 1 translation units. [2024-10-28 16:29:44,949 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i [2024-10-28 16:29:44,965 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a9a8cac03/90f6529e8e9b4a7b85fcfafe0ecaf8f0/FLAG40035d0a7 [2024-10-28 16:29:44,979 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/a9a8cac03/90f6529e8e9b4a7b85fcfafe0ecaf8f0 [2024-10-28 16:29:44,981 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-28 16:29:44,983 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-28 16:29:44,984 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-28 16:29:44,984 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-28 16:29:44,990 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-28 16:29:44,991 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:29:44" (1/1) ... [2024-10-28 16:29:44,992 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c50fca6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:44, skipping insertion in model container [2024-10-28 16:29:44,992 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.10 04:29:44" (1/1) ... [2024-10-28 16:29:45,044 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-28 16:29:45,279 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i[993,1006] [2024-10-28 16:29:45,506 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-28 16:29:45,528 INFO L200 MainTranslator]: Completed pre-run [2024-10-28 16:29:45,540 WARN L251 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe009_rmo.oepc.i[993,1006] [2024-10-28 16:29:45,599 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-28 16:29:45,649 INFO L204 MainTranslator]: Completed translation [2024-10-28 16:29:45,649 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45 WrapperNode [2024-10-28 16:29:45,650 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-28 16:29:45,651 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-28 16:29:45,651 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-28 16:29:45,652 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-28 16:29:45,659 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,685 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,723 INFO L138 Inliner]: procedures = 175, calls = 62, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 159 [2024-10-28 16:29:45,723 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-28 16:29:45,724 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-28 16:29:45,724 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-28 16:29:45,729 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-28 16:29:45,739 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,740 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,746 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,750 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,763 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,768 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,774 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,779 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,788 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-28 16:29:45,788 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-28 16:29:45,789 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-28 16:29:45,789 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-28 16:29:45,790 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (1/1) ... [2024-10-28 16:29:45,799 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-10-28 16:29:45,810 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 16:29:45,827 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-10-28 16:29:45,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-10-28 16:29:45,877 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-10-28 16:29:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-10-28 16:29:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-10-28 16:29:45,878 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-28 16:29:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2024-10-28 16:29:45,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2024-10-28 16:29:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2024-10-28 16:29:45,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2024-10-28 16:29:45,879 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2024-10-28 16:29:45,879 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2024-10-28 16:29:45,880 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-10-28 16:29:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-10-28 16:29:45,881 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-28 16:29:45,881 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-28 16:29:45,883 WARN L207 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-10-28 16:29:46,044 INFO L238 CfgBuilder]: Building ICFG [2024-10-28 16:29:46,045 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-28 16:29:46,490 INFO L283 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-10-28 16:29:46,490 INFO L287 CfgBuilder]: Performing block encoding [2024-10-28 16:29:46,904 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-28 16:29:46,907 INFO L316 CfgBuilder]: Removed 0 assume(true) statements. [2024-10-28 16:29:46,908 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:29:46 BoogieIcfgContainer [2024-10-28 16:29:46,908 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-28 16:29:46,910 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-28 16:29:46,913 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-28 16:29:46,917 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-28 16:29:46,918 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.10 04:29:44" (1/3) ... [2024-10-28 16:29:46,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6225e9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:29:46, skipping insertion in model container [2024-10-28 16:29:46,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.10 04:29:45" (2/3) ... [2024-10-28 16:29:46,919 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6225e9f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.10 04:29:46, skipping insertion in model container [2024-10-28 16:29:46,919 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.10 04:29:46" (3/3) ... [2024-10-28 16:29:46,921 INFO L112 eAbstractionObserver]: Analyzing ICFG safe009_rmo.oepc.i [2024-10-28 16:29:46,942 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-28 16:29:46,943 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-28 16:29:46,943 INFO L489 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-10-28 16:29:46,999 INFO L143 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-10-28 16:29:47,057 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-28 16:29:47,058 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-10-28 16:29:47,058 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-10-28 16:29:47,060 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-10-28 16:29:47,064 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-10-28 16:29:47,092 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-10-28 16:29:47,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-10-28 16:29:47,115 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@4140962b, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-28 16:29:47,115 INFO L334 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-10-28 16:31:00,641 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-28 16:31:00,646 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 16:31:00,647 INFO L85 PathProgramCache]: Analyzing trace with hash -198948936, now seen corresponding path program 1 times [2024-10-28 16:31:00,655 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 16:31:00,656 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [409861751] [2024-10-28 16:31:00,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 16:31:00,656 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 16:31:00,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 16:31:01,699 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 16:31:01,699 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 16:31:01,699 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [409861751] [2024-10-28 16:31:01,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [409861751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-28 16:31:01,700 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-28 16:31:01,700 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-28 16:31:01,705 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1947947794] [2024-10-28 16:31:01,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-28 16:31:01,710 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-28 16:31:01,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 16:31:01,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-28 16:31:01,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-28 16:31:01,741 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 16:31:01,743 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 16:31:01,745 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 4.166666666666667) internal successors, (25), 5 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 16:31:01,745 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-10-28 16:36:16,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-28 16:36:16,854 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-28 16:36:16,855 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 1 more)] === [2024-10-28 16:36:16,855 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-28 16:36:16,855 INFO L85 PathProgramCache]: Analyzing trace with hash 965478633, now seen corresponding path program 1 times [2024-10-28 16:36:16,856 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-28 16:36:16,856 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1095805922] [2024-10-28 16:36:16,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-28 16:36:16,856 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-28 16:36:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-28 16:36:17,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-28 16:36:17,990 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-28 16:36:17,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1095805922] [2024-10-28 16:36:17,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1095805922] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-28 16:36:17,991 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-28 16:36:17,991 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-28 16:36:17,991 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1465401533] [2024-10-28 16:36:17,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-28 16:36:17,993 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-28 16:36:17,994 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-28 16:36:17,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-28 16:36:17,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-10-28 16:36:17,995 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-28 16:36:17,996 INFO L471 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-10-28 16:36:17,996 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.0) internal successors, (28), 6 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-10-28 16:36:17,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2024-10-28 16:36:17,996 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15