./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c -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 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 20:39:52,036 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 20:39:52,121 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 20:39:52,128 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 20:39:52,131 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 20:39:52,150 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 20:39:52,150 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 20:39:52,151 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 20:39:52,151 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 20:39:52,152 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 20:39:52,152 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 20:39:52,152 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 20:39:52,153 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 20:39:52,155 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 20:39:52,155 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 20:39:52,156 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 20:39:52,156 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 20:39:52,156 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 20:39:52,157 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 20:39:52,157 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 20:39:52,161 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 20:39:52,162 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 20:39:52,162 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 20:39:52,162 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 20:39:52,163 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 20:39:52,163 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 20:39:52,163 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 20:39:52,163 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 20:39:52,164 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 20:39:52,164 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 20:39:52,164 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 20:39:52,164 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 20:39:52,165 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 20:39:52,165 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 20:39:52,165 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 20:39:52,166 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 20:39:52,166 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 20:39:52,166 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 20:39:52,166 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 20:39:52,166 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 20:39:52,167 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 20:39:52,167 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 [2024-09-08 20:39:52,418 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 20:39:52,441 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 20:39:52,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 20:39:52,443 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 20:39:52,444 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 20:39:52,445 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-09-08 20:39:53,875 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 20:39:54,062 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 20:39:54,063 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-09-08 20:39:54,070 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/39317fc28/e2baa86c5f594adfb1da602b58f4001f/FLAGf49e43da0 [2024-09-08 20:39:54,440 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/39317fc28/e2baa86c5f594adfb1da602b58f4001f [2024-09-08 20:39:54,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 20:39:54,444 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-08 20:39:54,445 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 20:39:54,445 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 20:39:54,452 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 20:39:54,453 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,453 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@785b77d5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54, skipping insertion in model container [2024-09-08 20:39:54,454 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,479 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 20:39:54,688 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[3336,3349] [2024-09-08 20:39:54,701 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 20:39:54,718 INFO L200 MainTranslator]: Completed pre-run [2024-09-08 20:39:54,749 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c[3336,3349] [2024-09-08 20:39:54,752 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 20:39:54,769 INFO L204 MainTranslator]: Completed translation [2024-09-08 20:39:54,769 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54 WrapperNode [2024-09-08 20:39:54,769 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 20:39:54,770 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 20:39:54,771 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 20:39:54,771 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 20:39:54,796 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,808 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,830 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 150 [2024-09-08 20:39:54,831 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 20:39:54,832 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 20:39:54,832 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 20:39:54,832 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 20:39:54,857 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,858 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,865 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,869 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,875 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,879 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,881 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,882 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,884 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 20:39:54,885 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 20:39:54,885 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 20:39:54,885 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 20:39:54,890 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (1/1) ... [2024-09-08 20:39:54,895 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 20:39:54,907 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:39:54,922 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) [2024-09-08 20:39:54,927 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 [2024-09-08 20:39:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 20:39:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 20:39:54,969 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 20:39:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 20:39:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 20:39:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 20:39:54,970 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 20:39:54,970 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-08 20:39:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-08 20:39:54,971 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-09-08 20:39:54,971 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-09-08 20:39:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 20:39:54,973 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-09-08 20:39:54,974 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-09-08 20:39:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 20:39:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 20:39:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 20:39:54,974 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 20:39:54,974 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 20:39:54,976 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 20:39:55,080 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 20:39:55,081 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 20:39:55,368 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 20:39:55,369 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 20:39:55,596 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 20:39:55,597 INFO L318 CfgBuilder]: Removed 5 assume(true) statements. [2024-09-08 20:39:55,597 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:39:55 BoogieIcfgContainer [2024-09-08 20:39:55,597 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 20:39:55,600 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 20:39:55,600 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 20:39:55,603 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 20:39:55,604 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 08:39:54" (1/3) ... [2024-09-08 20:39:55,605 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4b29bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:39:55, skipping insertion in model container [2024-09-08 20:39:55,605 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:39:54" (2/3) ... [2024-09-08 20:39:55,606 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e4b29bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:39:55, skipping insertion in model container [2024-09-08 20:39:55,606 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:39:55" (3/3) ... [2024-09-08 20:39:55,607 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2024-09-08 20:39:55,622 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 20:39:55,622 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-08 20:39:55,623 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 20:39:55,691 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-09-08 20:39:55,733 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 20:39:55,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 20:39:55,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:39:55,737 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) [2024-09-08 20:39:55,739 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 [2024-09-08 20:39:55,772 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 20:39:55,782 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 20:39:55,787 INFO L336 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;@59ff6c2c, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 20:39:55,788 INFO L337 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-09-08 20:39:56,334 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 20:39:56,341 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:39:56,342 INFO L85 PathProgramCache]: Analyzing trace with hash 1377587490, now seen corresponding path program 1 times [2024-09-08 20:39:56,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:39:56,351 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [327205601] [2024-09-08 20:39:56,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:39:56,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:39:56,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:39:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-09-08 20:39:57,154 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:39:57,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [327205601] [2024-09-08 20:39:57,155 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [327205601] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 20:39:57,155 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 20:39:57,155 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 20:39:57,157 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406192415] [2024-09-08 20:39:57,157 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 20:39:57,162 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 20:39:57,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:39:57,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 20:39:57,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 20:39:57,181 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:39:57,182 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:39:57,183 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 16.0) internal successors, (48), 2 states have internal predecessors, (48), 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) [2024-09-08 20:39:57,183 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:39:57,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:39:57,306 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 20:39:57,307 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 20:39:57,308 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:39:57,308 INFO L85 PathProgramCache]: Analyzing trace with hash -427085980, now seen corresponding path program 1 times [2024-09-08 20:39:57,308 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:39:57,308 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524415446] [2024-09-08 20:39:57,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:39:57,309 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:39:57,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:39:59,325 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 84 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:39:59,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:39:59,326 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524415446] [2024-09-08 20:39:59,326 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524415446] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:39:59,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [941962210] [2024-09-08 20:39:59,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:39:59,327 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:39:59,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:39:59,329 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 20:39:59,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 20:39:59,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:39:59,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 20:39:59,509 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:39:59,783 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 83 proven. 1 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-09-08 20:39:59,783 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:39:59,970 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 83 proven. 1 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-09-08 20:39:59,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [941962210] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:39:59,970 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:39:59,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 6, 6] total 45 [2024-09-08 20:39:59,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [341947891] [2024-09-08 20:39:59,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:39:59,972 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-08 20:39:59,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:39:59,976 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-08 20:39:59,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1831, Unknown=0, NotChecked=0, Total=2070 [2024-09-08 20:39:59,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:39:59,979 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:39:59,980 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 46 states, 46 states have (on average 4.478260869565218) internal successors, (206), 45 states have internal predecessors, (206), 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) [2024-09-08 20:39:59,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:39:59,980 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:40:00,455 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:40:00,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:00,476 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-08 20:40:00,657 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-09-08 20:40:00,657 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 20:40:00,658 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:40:00,658 INFO L85 PathProgramCache]: Analyzing trace with hash -537388702, now seen corresponding path program 2 times [2024-09-08 20:40:00,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:40:00,659 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764221912] [2024-09-08 20:40:00,659 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:40:00,659 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:40:00,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:40:02,266 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 84 proven. 267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:40:02,267 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:40:02,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764221912] [2024-09-08 20:40:02,267 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [764221912] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:40:02,267 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327538390] [2024-09-08 20:40:02,267 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 20:40:02,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:40:02,268 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:40:02,270 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) [2024-09-08 20:40:02,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 20:40:02,400 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-08 20:40:02,400 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:40:02,402 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 20:40:02,407 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:40:02,469 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2024-09-08 20:40:02,667 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-09-08 20:40:02,667 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 20:40:02,668 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327538390] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 20:40:02,668 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 20:40:02,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [38] total 42 [2024-09-08 20:40:02,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852661119] [2024-09-08 20:40:02,668 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 20:40:02,669 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-08 20:40:02,672 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:40:02,672 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-08 20:40:02,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1529, Unknown=0, NotChecked=0, Total=1722 [2024-09-08 20:40:02,675 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:40:02,675 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:40:02,675 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 9.8) internal successors, (49), 5 states have internal predecessors, (49), 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) [2024-09-08 20:40:02,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:40:02,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:02,676 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:40:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:40:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:05,534 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:40:05,552 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-08 20:40:05,735 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:40:05,735 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 20:40:05,736 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:40:05,736 INFO L85 PathProgramCache]: Analyzing trace with hash -902125656, now seen corresponding path program 3 times [2024-09-08 20:40:05,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:40:05,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138208312] [2024-09-08 20:40:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:40:05,737 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:40:05,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:40:07,331 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 124 proven. 293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:40:07,332 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:40:07,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138208312] [2024-09-08 20:40:07,333 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138208312] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:40:07,333 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1112610672] [2024-09-08 20:40:07,334 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 20:40:07,334 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:40:07,334 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:40:07,336 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) [2024-09-08 20:40:07,337 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 20:40:07,471 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-09-08 20:40:07,472 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:40:07,474 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-08 20:40:07,481 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:40:07,680 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2024-09-08 20:40:07,681 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-08 20:40:07,681 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1112610672] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 20:40:07,681 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-08 20:40:07,681 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [41] total 43 [2024-09-08 20:40:07,681 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651897403] [2024-09-08 20:40:07,681 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 20:40:07,682 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 20:40:07,682 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:40:07,682 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 20:40:07,684 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1646, Unknown=0, NotChecked=0, Total=1892 [2024-09-08 20:40:07,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:40:07,684 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:40:07,685 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.25) internal successors, (49), 3 states have internal predecessors, (49), 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) [2024-09-08 20:40:07,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:40:07,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:07,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:40:07,685 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:40:09,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:40:09,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:40:09,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:09,304 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-08 20:40:09,487 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:40:09,488 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 20:40:09,490 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:40:09,490 INFO L85 PathProgramCache]: Analyzing trace with hash 1328575298, now seen corresponding path program 4 times [2024-09-08 20:40:09,490 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:40:09,490 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1402173787] [2024-09-08 20:40:09,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:40:09,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:40:09,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:40:11,185 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 128 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:40:11,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:40:11,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1402173787] [2024-09-08 20:40:11,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1402173787] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:40:11,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1707169429] [2024-09-08 20:40:11,186 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-08 20:40:11,186 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:40:11,186 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:40:11,188 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) [2024-09-08 20:40:11,189 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 20:40:11,341 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-08 20:40:11,341 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:40:11,345 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-08 20:40:11,349 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:40:12,068 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 221 proven. 219 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-08 20:40:12,069 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:40:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 310 proven. 44 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-09-08 20:40:12,378 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1707169429] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:40:12,379 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:40:12,379 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 18, 7] total 66 [2024-09-08 20:40:12,379 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [629047415] [2024-09-08 20:40:12,379 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:40:12,380 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-09-08 20:40:12,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:40:12,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-09-08 20:40:12,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=398, Invalid=3892, Unknown=0, NotChecked=0, Total=4290 [2024-09-08 20:40:12,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:40:12,387 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:40:12,388 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 4.621212121212121) internal successors, (305), 66 states have internal predecessors, (305), 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) [2024-09-08 20:40:12,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:40:12,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:12,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:40:12,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:12,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:40:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:40:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:35,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:40:35,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:35,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-08 20:40:35,993 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-08 20:40:36,181 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:40:36,182 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 20:40:36,182 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:40:36,182 INFO L85 PathProgramCache]: Analyzing trace with hash -847084031, now seen corresponding path program 5 times [2024-09-08 20:40:36,182 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:40:36,182 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141796160] [2024-09-08 20:40:36,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:40:36,183 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:40:36,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:40:38,498 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 154 proven. 459 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:40:38,498 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:40:38,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141796160] [2024-09-08 20:40:38,499 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [141796160] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:40:38,499 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1577583277] [2024-09-08 20:40:38,499 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-08 20:40:38,499 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:40:38,499 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:40:38,501 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 20:40:38,502 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 20:40:42,024 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-09-08 20:40:42,024 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:40:42,033 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-08 20:40:42,036 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:40:43,039 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 585 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-08 20:40:43,039 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:40:43,756 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 585 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-08 20:40:43,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1577583277] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:40:43,756 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:40:43,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 18, 18] total 82 [2024-09-08 20:40:43,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [844787456] [2024-09-08 20:40:43,757 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:40:43,758 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-09-08 20:40:43,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:40:43,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-09-08 20:40:43,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=6007, Unknown=0, NotChecked=0, Total=6806 [2024-09-08 20:40:43,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:40:43,762 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:40:43,762 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 5.048192771084337) internal successors, (419), 82 states have internal predecessors, (419), 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) [2024-09-08 20:40:43,762 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:40:43,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:43,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:40:43,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:40:43,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-09-08 20:40:43,763 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:41:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:41:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:41:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:41:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:41:00,179 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-08 20:41:00,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 20:41:00,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-08 20:41:00,380 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:41:00,381 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-08 20:41:00,382 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:41:00,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1279371137, now seen corresponding path program 6 times [2024-09-08 20:41:00,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:41:00,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [257681588] [2024-09-08 20:41:00,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:41:00,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:41:00,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:41:01,185 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 310 proven. 236 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-09-08 20:41:01,186 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:41:01,186 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [257681588] [2024-09-08 20:41:01,186 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [257681588] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:41:01,187 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [854732473] [2024-09-08 20:41:01,187 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-08 20:41:01,187 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:41:01,187 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:41:01,190 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 20:41:01,191 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 20:41:01,694 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-09-08 20:41:01,695 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:41:01,697 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-08 20:41:01,700 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:41:01,953 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 13 [2024-09-08 20:41:01,999 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2024-09-08 20:41:02,104 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 20:41:02,105 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 55 treesize of output 45 [2024-09-08 20:41:02,272 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2024-09-08 20:41:02,272 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:41:06,381 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2024-09-08 20:41:06,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [854732473] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:41:06,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:41:06,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 11] total 40 [2024-09-08 20:41:06,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1733357079] [2024-09-08 20:41:06,383 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:41:06,383 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-08 20:41:06,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:41:06,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-08 20:41:06,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1351, Unknown=1, NotChecked=0, Total=1560 [2024-09-08 20:41:06,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:41:06,385 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:41:06,386 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 40 states, 40 states have (on average 6.45) internal successors, (258), 40 states have internal predecessors, (258), 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) [2024-09-08 20:41:06,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:41:06,386 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:41:06,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-08 20:41:06,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-08 20:41:06,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-09-08 20:41:06,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 20:41:06,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.