./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 e94c40da 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-dev-e94c40d-m [2024-09-22 14:09:29,600 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-22 14:09:29,678 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-22 14:09:29,684 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-22 14:09:29,686 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-22 14:09:29,711 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-22 14:09:29,712 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-22 14:09:29,712 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-22 14:09:29,713 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-22 14:09:29,714 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-22 14:09:29,715 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-22 14:09:29,715 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-22 14:09:29,715 INFO L153 SettingsManager]: * Use SBE=true [2024-09-22 14:09:29,716 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-22 14:09:29,718 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-22 14:09:29,718 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-22 14:09:29,718 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-22 14:09:29,718 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-22 14:09:29,719 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-22 14:09:29,719 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-22 14:09:29,719 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-22 14:09:29,722 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-22 14:09:29,722 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-22 14:09:29,722 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-22 14:09:29,723 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-22 14:09:29,723 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-22 14:09:29,723 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-22 14:09:29,723 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-22 14:09:29,723 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-22 14:09:29,724 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-22 14:09:29,724 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 14:09:29,724 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-22 14:09:29,724 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-22 14:09:29,724 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-22 14:09:29,725 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-22 14:09:29,725 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-22 14:09:29,726 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-22 14:09:29,726 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-22 14:09:29,726 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-22 14:09:29,727 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-22 14:09:29,727 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-22 14:09:29,728 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 47fde0ba5912e0415b0c299af0f3ae7b3e6a5b956bf726bb77299079d74126b4 [2024-09-22 14:09:29,993 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-22 14:09:30,016 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-22 14:09:30,018 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-22 14:09:30,020 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-22 14:09:30,020 INFO L274 PluginConnector]: CDTParser initialized [2024-09-22 14:09:30,021 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-09-22 14:09:31,490 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-22 14:09:31,678 INFO L384 CDTParser]: Found 1 translation units. [2024-09-22 14:09:31,679 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-min-max-inc-dec.wvr.c [2024-09-22 14:09:31,686 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/e8138d93b/27b1bee14b1548dd958f7506a7cb6c72/FLAG1983e8d6c [2024-09-22 14:09:31,697 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/e8138d93b/27b1bee14b1548dd958f7506a7cb6c72 [2024-09-22 14:09:31,700 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-22 14:09:31,701 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-22 14:09:31,703 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-22 14:09:31,703 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-22 14:09:31,709 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-22 14:09:31,709 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:09:31" (1/1) ... [2024-09-22 14:09:31,712 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@636262d8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:31, skipping insertion in model container [2024-09-22 14:09:31,712 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:09:31" (1/1) ... [2024-09-22 14:09:31,737 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-22 14:09:31,944 WARN L248 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] [2024-09-22 14:09:31,959 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 14:09:31,967 INFO L200 MainTranslator]: Completed pre-run [2024-09-22 14:09:32,000 WARN L248 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] [2024-09-22 14:09:32,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 14:09:32,027 INFO L204 MainTranslator]: Completed translation [2024-09-22 14:09:32,027 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32 WrapperNode [2024-09-22 14:09:32,027 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-22 14:09:32,029 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-22 14:09:32,029 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-22 14:09:32,029 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-22 14:09:32,038 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,046 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,069 INFO L138 Inliner]: procedures = 26, calls = 50, calls flagged for inlining = 9, calls inlined = 9, statements flattened = 150 [2024-09-22 14:09:32,069 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-22 14:09:32,070 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-22 14:09:32,070 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-22 14:09:32,070 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-22 14:09:32,080 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,080 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,086 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,089 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,098 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,106 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,107 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,109 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,111 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-22 14:09:32,112 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-22 14:09:32,112 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-22 14:09:32,113 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-22 14:09:32,113 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (1/1) ... [2024-09-22 14:09:32,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 14:09:32,133 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:09:32,145 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-22 14:09:32,147 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 [2024-09-22 14:09:32,184 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-22 14:09:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-22 14:09:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-22 14:09:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-22 14:09:32,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-22 14:09:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-22 14:09:32,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-22 14:09:32,185 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-22 14:09:32,185 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-22 14:09:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2024-09-22 14:09:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2024-09-22 14:09:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-22 14:09:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure thread5 [2024-09-22 14:09:32,186 INFO L138 BoogieDeclarations]: Found implementation of procedure thread5 [2024-09-22 14:09:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-22 14:09:32,186 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-22 14:09:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-22 14:09:32,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-22 14:09:32,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-22 14:09:32,188 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-22 14:09:32,283 INFO L242 CfgBuilder]: Building ICFG [2024-09-22 14:09:32,285 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-22 14:09:32,556 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-22 14:09:32,556 INFO L291 CfgBuilder]: Performing block encoding [2024-09-22 14:09:32,825 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-22 14:09:32,825 INFO L318 CfgBuilder]: Removed 5 assume(true) statements. [2024-09-22 14:09:32,825 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:09:32 BoogieIcfgContainer [2024-09-22 14:09:32,826 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-22 14:09:32,829 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-22 14:09:32,830 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-22 14:09:32,833 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-22 14:09:32,833 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 02:09:31" (1/3) ... [2024-09-22 14:09:32,835 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff29c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:09:32, skipping insertion in model container [2024-09-22 14:09:32,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:09:32" (2/3) ... [2024-09-22 14:09:32,836 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5ff29c97 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:09:32, skipping insertion in model container [2024-09-22 14:09:32,836 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:09:32" (3/3) ... [2024-09-22 14:09:32,837 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-min-max-inc-dec.wvr.c [2024-09-22 14:09:32,853 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-22 14:09:32,854 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-22 14:09:32,854 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-22 14:09:32,929 INFO L144 ThreadInstanceAdder]: Constructed 5 joinOtherThreadTransitions. [2024-09-22 14:09:32,972 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 14:09:32,972 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-22 14:09:32,972 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:09:32,974 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) [2024-09-22 14:09:32,975 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 [2024-09-22 14:09:33,015 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-22 14:09:33,031 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-22 14:09:33,036 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;@245c1903, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 14:09:33,037 INFO L337 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2024-09-22 14:09:33,481 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)] === [2024-09-22 14:09:33,486 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:09:33,487 INFO L85 PathProgramCache]: Analyzing trace with hash 1377587490, now seen corresponding path program 1 times [2024-09-22 14:09:33,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:09:33,496 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1200859749] [2024-09-22 14:09:33,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:09:33,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:09:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:09:34,270 INFO L134 CoverageAnalysis]: Checked inductivity of 348 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 348 trivial. 0 not checked. [2024-09-22 14:09:34,271 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:09:34,271 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1200859749] [2024-09-22 14:09:34,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1200859749] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 14:09:34,272 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 14:09:34,272 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-22 14:09:34,274 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144255417] [2024-09-22 14:09:34,275 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 14:09:34,280 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-22 14:09:34,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:09:34,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-22 14:09:34,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-22 14:09:34,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:09:34,310 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:09:34,311 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) [2024-09-22 14:09:34,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:09:34,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:09:34,438 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-22 14:09:34,438 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)] === [2024-09-22 14:09:34,439 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:09:34,439 INFO L85 PathProgramCache]: Analyzing trace with hash -427085980, now seen corresponding path program 1 times [2024-09-22 14:09:34,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:09:34,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687807905] [2024-09-22 14:09:34,439 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:09:34,439 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:09:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:09:36,415 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 84 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:09:36,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:09:36,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687807905] [2024-09-22 14:09:36,416 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687807905] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:09:36,416 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029335960] [2024-09-22 14:09:36,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:09:36,416 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:09:36,416 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:09:36,438 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) [2024-09-22 14:09:36,440 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-22 14:09:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:09:36,596 INFO L262 TraceCheckSpWp]: Trace formula consists of 439 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-22 14:09:36,603 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:09:36,872 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 83 proven. 1 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-09-22 14:09:36,873 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:09:37,082 INFO L134 CoverageAnalysis]: Checked inductivity of 349 backedges. 83 proven. 1 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-09-22 14:09:37,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029335960] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:09:37,085 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:09:37,085 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 6, 6] total 45 [2024-09-22 14:09:37,086 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551006102] [2024-09-22 14:09:37,086 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:09:37,087 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 46 states [2024-09-22 14:09:37,089 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:09:37,090 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 46 interpolants. [2024-09-22 14:09:37,094 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=239, Invalid=1831, Unknown=0, NotChecked=0, Total=2070 [2024-09-22 14:09:37,094 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:09:37,095 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:09:37,095 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) [2024-09-22 14:09:37,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:09:37,095 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:09:37,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:09:37,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:09:37,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-22 14:09:37,742 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 [2024-09-22 14:09:37,742 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)] === [2024-09-22 14:09:37,743 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:09:37,743 INFO L85 PathProgramCache]: Analyzing trace with hash -537388702, now seen corresponding path program 2 times [2024-09-22 14:09:37,743 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:09:37,743 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329400997] [2024-09-22 14:09:37,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:09:37,744 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:09:37,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:09:39,348 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 84 proven. 267 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:09:39,349 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:09:39,349 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329400997] [2024-09-22 14:09:39,349 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329400997] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:09:39,350 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151985282] [2024-09-22 14:09:39,350 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-22 14:09:39,350 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:09:39,350 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:09:39,352 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) [2024-09-22 14:09:39,354 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-22 14:09:39,487 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2024-09-22 14:09:39,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 14:09:39,489 INFO L262 TraceCheckSpWp]: Trace formula consists of 253 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-22 14:09:39,495 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:09:39,561 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 [2024-09-22 14:09:39,750 INFO L134 CoverageAnalysis]: Checked inductivity of 351 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 351 trivial. 0 not checked. [2024-09-22 14:09:39,751 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-22 14:09:39,751 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151985282] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 14:09:39,751 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-22 14:09:39,751 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [38] total 42 [2024-09-22 14:09:39,752 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110349765] [2024-09-22 14:09:39,752 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 14:09:39,752 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-22 14:09:39,753 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:09:39,753 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-22 14:09:39,754 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=193, Invalid=1529, Unknown=0, NotChecked=0, Total=1722 [2024-09-22 14:09:39,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:09:39,754 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:09:39,754 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) [2024-09-22 14:09:39,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:09:39,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:09:39,755 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:09:42,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:09:42,395 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:09:42,396 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:09:42,412 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-09-22 14:09:42,596 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 [2024-09-22 14:09:42,597 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)] === [2024-09-22 14:09:42,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:09:42,598 INFO L85 PathProgramCache]: Analyzing trace with hash -902125656, now seen corresponding path program 3 times [2024-09-22 14:09:42,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:09:42,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875773052] [2024-09-22 14:09:42,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:09:42,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:09:42,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:09:44,202 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 124 proven. 293 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:09:44,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:09:44,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875773052] [2024-09-22 14:09:44,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875773052] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:09:44,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [996148447] [2024-09-22 14:09:44,203 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-22 14:09:44,203 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:09:44,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:09:44,205 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) [2024-09-22 14:09:44,206 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-22 14:09:44,329 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2024-09-22 14:09:44,329 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 14:09:44,331 INFO L262 TraceCheckSpWp]: Trace formula consists of 247 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-22 14:09:44,334 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:09:44,555 INFO L134 CoverageAnalysis]: Checked inductivity of 417 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 417 trivial. 0 not checked. [2024-09-22 14:09:44,555 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-22 14:09:44,555 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [996148447] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 14:09:44,555 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-22 14:09:44,556 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [41] total 43 [2024-09-22 14:09:44,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791814775] [2024-09-22 14:09:44,556 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 14:09:44,556 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-22 14:09:44,557 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:09:44,558 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-22 14:09:44,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=246, Invalid=1646, Unknown=0, NotChecked=0, Total=1892 [2024-09-22 14:09:44,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:09:44,559 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:09:44,559 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) [2024-09-22 14:09:44,559 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:09:44,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:09:44,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:09:44,560 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:09:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:09:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:09:46,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:09:46,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:09:46,197 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-22 14:09:46,375 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 [2024-09-22 14:09:46,376 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)] === [2024-09-22 14:09:46,376 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:09:46,376 INFO L85 PathProgramCache]: Analyzing trace with hash 1328575298, now seen corresponding path program 4 times [2024-09-22 14:09:46,376 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:09:46,376 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [976319320] [2024-09-22 14:09:46,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:09:46,377 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:09:46,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:09:48,023 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 128 proven. 364 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:09:48,023 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:09:48,023 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [976319320] [2024-09-22 14:09:48,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [976319320] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:09:48,024 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [55615716] [2024-09-22 14:09:48,024 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-22 14:09:48,024 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:09:48,024 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:09:48,026 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) [2024-09-22 14:09:48,027 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-22 14:09:48,160 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-22 14:09:48,160 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 14:09:48,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-22 14:09:48,166 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:09:48,898 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 221 proven. 219 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-09-22 14:09:48,899 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:09:49,158 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 310 proven. 44 refuted. 0 times theorem prover too weak. 138 trivial. 0 not checked. [2024-09-22 14:09:49,159 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [55615716] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:09:49,159 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:09:49,159 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [44, 18, 7] total 66 [2024-09-22 14:09:49,159 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1308829603] [2024-09-22 14:09:49,160 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:09:49,160 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2024-09-22 14:09:49,160 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:09:49,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2024-09-22 14:09:49,166 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=398, Invalid=3892, Unknown=0, NotChecked=0, Total=4290 [2024-09-22 14:09:49,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:09:49,166 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:09:49,167 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) [2024-09-22 14:09:49,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:09:49,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:09:49,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:09:49,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:09:49,167 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:10:11,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:10:11,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:10:11,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:10:11,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:10:11,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:10:11,374 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-22 14:10:11,563 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 [2024-09-22 14:10:11,563 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)] === [2024-09-22 14:10:11,563 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:10:11,564 INFO L85 PathProgramCache]: Analyzing trace with hash -847084031, now seen corresponding path program 5 times [2024-09-22 14:10:11,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:10:11,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397802345] [2024-09-22 14:10:11,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:10:11,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:10:11,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:10:13,972 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 154 proven. 459 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:10:13,973 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:10:13,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397802345] [2024-09-22 14:10:13,973 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [397802345] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:10:13,973 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1828428805] [2024-09-22 14:10:13,974 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-22 14:10:13,974 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:10:13,974 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:10:13,976 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) [2024-09-22 14:10:13,977 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-22 14:10:17,299 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2024-09-22 14:10:17,299 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 14:10:17,308 INFO L262 TraceCheckSpWp]: Trace formula consists of 541 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-22 14:10:17,313 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:10:18,286 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 585 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-22 14:10:18,286 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:10:18,962 INFO L134 CoverageAnalysis]: Checked inductivity of 613 backedges. 585 proven. 6 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-09-22 14:10:18,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1828428805] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:10:18,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:10:18,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 18, 18] total 82 [2024-09-22 14:10:18,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [107664562] [2024-09-22 14:10:18,963 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:10:18,964 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2024-09-22 14:10:18,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:10:18,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2024-09-22 14:10:18,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=799, Invalid=6007, Unknown=0, NotChecked=0, Total=6806 [2024-09-22 14:10:18,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:10:18,968 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:10:18,968 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) [2024-09-22 14:10:18,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:10:18,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:10:18,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:10:18,968 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:10:18,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:10:18,969 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:10:34,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:10:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:10:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:10:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:10:34,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:10:34,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:10:34,173 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-22 14:10:34,352 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 [2024-09-22 14:10:34,352 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)] === [2024-09-22 14:10:34,353 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:10:34,353 INFO L85 PathProgramCache]: Analyzing trace with hash -1279371137, now seen corresponding path program 6 times [2024-09-22 14:10:34,353 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:10:34,353 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550011841] [2024-09-22 14:10:34,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:10:34,353 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:10:34,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:10:35,153 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 310 proven. 236 refuted. 0 times theorem prover too weak. 97 trivial. 0 not checked. [2024-09-22 14:10:35,153 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:10:35,153 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550011841] [2024-09-22 14:10:35,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550011841] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:10:35,154 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707568816] [2024-09-22 14:10:35,154 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-22 14:10:35,154 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:10:35,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:10:35,157 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) [2024-09-22 14:10:35,160 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-22 14:10:35,680 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 6 check-sat command(s) [2024-09-22 14:10:35,681 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 14:10:35,683 INFO L262 TraceCheckSpWp]: Trace formula consists of 444 conjuncts, 26 conjuncts are in the unsatisfiable core [2024-09-22 14:10:35,687 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:10:35,934 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 [2024-09-22 14:10:35,978 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 [2024-09-22 14:10:36,109 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-22 14:10:36,110 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 [2024-09-22 14:10:36,285 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2024-09-22 14:10:36,285 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:10:40,420 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 0 proven. 165 refuted. 0 times theorem prover too weak. 478 trivial. 0 not checked. [2024-09-22 14:10:40,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707568816] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:10:40,420 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:10:40,421 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 12, 11] total 40 [2024-09-22 14:10:40,421 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847511147] [2024-09-22 14:10:40,421 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:10:40,421 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 40 states [2024-09-22 14:10:40,421 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:10:40,422 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 40 interpolants. [2024-09-22 14:10:40,423 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1351, Unknown=1, NotChecked=0, Total=1560 [2024-09-22 14:10:40,423 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:10:40,423 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:10:40,424 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) [2024-09-22 14:10:40,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:10:40,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:10:40,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:10:40,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:10:40,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:10:40,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:10:40,424 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:10:45,896 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-09-22 14:10:54,577 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-09-22 14:10:59,631 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-09-22 14:11:01,642 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [1] [2024-09-22 14:12:47,904 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:12:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:12:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:12:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:12:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:12:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:12:47,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2024-09-22 14:12:47,919 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-22 14:12:48,105 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-09-22 14:12:48,106 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-22 14:12:48,106 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:12:48,107 INFO L85 PathProgramCache]: Analyzing trace with hash 285492304, now seen corresponding path program 7 times [2024-09-22 14:12:48,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:12:48,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006528034] [2024-09-22 14:12:48,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:12:48,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:12:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:12:49,784 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 531 proven. 181 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-22 14:12:49,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:12:49,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006528034] [2024-09-22 14:12:49,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2006528034] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:12:49,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1439641531] [2024-09-22 14:12:49,785 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-09-22 14:12:49,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:12:49,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:12:49,786 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-22 14:12:49,787 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-22 14:12:49,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:12:49,981 INFO L262 TraceCheckSpWp]: Trace formula consists of 602 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-22 14:12:49,984 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:12:50,775 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 601 proven. 36 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-09-22 14:12:50,776 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:12:51,455 INFO L134 CoverageAnalysis]: Checked inductivity of 714 backedges. 601 proven. 36 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2024-09-22 14:12:51,455 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1439641531] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:12:51,455 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:12:51,456 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 20, 20] total 74 [2024-09-22 14:12:51,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [698449804] [2024-09-22 14:12:51,456 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:12:51,456 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 75 states [2024-09-22 14:12:51,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:12:51,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 75 interpolants. [2024-09-22 14:12:51,460 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=863, Invalid=4687, Unknown=0, NotChecked=0, Total=5550 [2024-09-22 14:12:51,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:12:51,460 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:12:51,461 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 75 states, 75 states have (on average 5.373333333333333) internal successors, (403), 74 states have internal predecessors, (403), 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) [2024-09-22 14:12:51,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:12:51,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:12:51,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:12:51,461 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:12:51,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:12:51,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:12:51,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2024-09-22 14:12:51,462 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:14:10,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:14:10,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:14:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:14:10,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:14:10,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:14:10,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:14:10,797 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2024-09-22 14:14:10,798 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:14:10,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-22 14:14:11,002 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:14:11,003 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-22 14:14:11,004 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:14:11,004 INFO L85 PathProgramCache]: Analyzing trace with hash 2123384722, now seen corresponding path program 8 times [2024-09-22 14:14:11,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:14:11,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205855192] [2024-09-22 14:14:11,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:14:11,004 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:14:11,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:14:11,733 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 336 proven. 295 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-22 14:14:11,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:14:11,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205855192] [2024-09-22 14:14:11,734 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205855192] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:14:11,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2005902415] [2024-09-22 14:14:11,734 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-22 14:14:11,734 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:14:11,734 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:14:11,736 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-22 14:14:11,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-22 14:14:11,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-22 14:14:11,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 14:14:11,937 INFO L262 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-09-22 14:14:11,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:14:12,436 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 344 proven. 287 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-22 14:14:12,436 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:14:12,812 INFO L134 CoverageAnalysis]: Checked inductivity of 723 backedges. 353 proven. 278 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2024-09-22 14:14:12,813 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2005902415] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:14:12,813 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:14:12,813 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 20, 20] total 49 [2024-09-22 14:14:12,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [853141874] [2024-09-22 14:14:12,813 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:14:12,814 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-09-22 14:14:12,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:14:12,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-09-22 14:14:12,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=586, Invalid=1864, Unknown=0, NotChecked=0, Total=2450 [2024-09-22 14:14:12,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:14:12,816 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:14:12,816 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 5.6) internal successors, (280), 49 states have internal predecessors, (280), 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) [2024-09-22 14:14:12,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:14:12,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:14:12,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:14:12,816 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:14:12,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:14:12,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:14:12,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2024-09-22 14:14:12,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:14:12,817 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:16:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:16:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:16:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:16:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:16:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:16:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:16:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2024-09-22 14:16:06,596 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:16:06,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-22 14:16:06,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-22 14:16:06,797 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:16:06,798 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-22 14:16:06,798 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:16:06,799 INFO L85 PathProgramCache]: Analyzing trace with hash -2130538268, now seen corresponding path program 9 times [2024-09-22 14:16:06,799 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:16:06,799 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [816806587] [2024-09-22 14:16:06,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:16:06,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:16:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:16:07,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 857 proven. 70 refuted. 0 times theorem prover too weak. 191 trivial. 0 not checked. [2024-09-22 14:16:07,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:16:07,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [816806587] [2024-09-22 14:16:07,625 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [816806587] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:16:07,625 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [595654627] [2024-09-22 14:16:07,625 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-22 14:16:07,625 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:16:07,625 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:16:07,627 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-22 14:16:07,629 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-22 14:16:10,142 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2024-09-22 14:16:10,142 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 14:16:10,152 INFO L262 TraceCheckSpWp]: Trace formula consists of 639 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-22 14:16:10,154 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:16:10,802 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 986 proven. 45 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-09-22 14:16:10,802 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:16:11,470 INFO L134 CoverageAnalysis]: Checked inductivity of 1118 backedges. 751 proven. 280 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2024-09-22 14:16:11,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [595654627] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:16:11,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:16:11,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [22, 22, 22] total 62 [2024-09-22 14:16:11,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1782037928] [2024-09-22 14:16:11,471 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:16:11,471 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 63 states [2024-09-22 14:16:11,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:16:11,473 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 63 interpolants. [2024-09-22 14:16:11,474 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=735, Invalid=3171, Unknown=0, NotChecked=0, Total=3906 [2024-09-22 14:16:11,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:16:11,474 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:16:11,475 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 63 states, 63 states have (on average 6.476190476190476) internal successors, (408), 62 states have internal predecessors, (408), 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) [2024-09-22 14:16:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:16:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:16:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:16:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:16:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:16:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:16:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2024-09-22 14:16:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:16:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-22 14:16:11,475 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:18:10,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:18:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:18:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:18:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:18:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:18:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:18:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2024-09-22 14:18:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:18:10,666 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-22 14:18:10,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-22 14:18:10,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-22 14:18:10,867 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-22 14:18:10,868 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (and 3 more)] === [2024-09-22 14:18:10,869 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:18:10,869 INFO L85 PathProgramCache]: Analyzing trace with hash -1716567130, now seen corresponding path program 10 times [2024-09-22 14:18:10,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:18:10,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354232080] [2024-09-22 14:18:10,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:18:10,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:18:10,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:18:11,748 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 691 proven. 371 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-09-22 14:18:11,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:18:11,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354232080] [2024-09-22 14:18:11,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354232080] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:18:11,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [715077003] [2024-09-22 14:18:11,749 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-22 14:18:11,749 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:18:11,749 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:18:11,751 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-22 14:18:11,752 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-22 14:18:11,971 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-22 14:18:11,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 14:18:11,974 INFO L262 TraceCheckSpWp]: Trace formula consists of 343 conjuncts, 24 conjuncts are in the unsatisfiable core [2024-09-22 14:18:11,977 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:18:12,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 452 proven. 529 refuted. 0 times theorem prover too weak. 147 trivial. 0 not checked. [2024-09-22 14:18:12,821 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:18:13,133 INFO L134 CoverageAnalysis]: Checked inductivity of 1128 backedges. 554 proven. 60 refuted. 0 times theorem prover too weak. 514 trivial. 0 not checked. [2024-09-22 14:18:13,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [715077003] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:18:13,134 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:18:13,134 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 25, 7] total 52 [2024-09-22 14:18:13,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048021323] [2024-09-22 14:18:13,134 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:18:13,135 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 52 states [2024-09-22 14:18:13,135 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:18:13,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 52 interpolants. [2024-09-22 14:18:13,136 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=262, Invalid=2390, Unknown=0, NotChecked=0, Total=2652 [2024-09-22 14:18:13,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:18:13,136 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:18:13,137 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 52 states, 52 states have (on average 6.903846153846154) internal successors, (359), 52 states have internal predecessors, (359), 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) [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states. [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-22 14:18:13,137 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15