./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.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-more-sum-array-hom.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 37731ec014f4053387ac8b56c0764486866d63670c206743514c9636df9b594a --- Real Ultimate output --- This is Ultimate 0.2.4-dev-e94c40d-m [2024-09-22 14:40:02,435 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-22 14:40:02,487 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-22 14:40:02,492 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-22 14:40:02,494 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-22 14:40:02,520 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-22 14:40:02,521 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-22 14:40:02,521 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-22 14:40:02,522 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-22 14:40:02,522 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-22 14:40:02,523 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-22 14:40:02,523 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-22 14:40:02,523 INFO L153 SettingsManager]: * Use SBE=true [2024-09-22 14:40:02,523 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-22 14:40:02,523 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-22 14:40:02,524 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-22 14:40:02,524 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-22 14:40:02,524 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-22 14:40:02,524 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-22 14:40:02,525 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-22 14:40:02,525 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-22 14:40:02,528 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-22 14:40:02,529 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-22 14:40:02,530 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-22 14:40:02,530 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-22 14:40:02,530 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-22 14:40:02,533 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-22 14:40:02,533 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-22 14:40:02,533 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-22 14:40:02,533 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-22 14:40:02,534 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 14:40:02,534 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-22 14:40:02,534 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-22 14:40:02,534 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-22 14:40:02,534 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-22 14:40:02,534 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-22 14:40:02,535 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-22 14:40:02,535 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-22 14:40:02,535 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-22 14:40:02,535 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-22 14:40:02,535 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-22 14:40:02,536 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 37731ec014f4053387ac8b56c0764486866d63670c206743514c9636df9b594a [2024-09-22 14:40:02,747 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-22 14:40:02,767 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-22 14:40:02,770 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-22 14:40:02,771 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-22 14:40:02,772 INFO L274 PluginConnector]: CDTParser initialized [2024-09-22 14:40:02,773 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c [2024-09-22 14:40:03,979 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-22 14:40:04,134 INFO L384 CDTParser]: Found 1 translation units. [2024-09-22 14:40:04,134 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-sum-array-hom.wvr.c [2024-09-22 14:40:04,140 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bc1b570e4/ee5a57aefea348e4a0430f991500eb89/FLAGa5e2f2237 [2024-09-22 14:40:04,151 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/bc1b570e4/ee5a57aefea348e4a0430f991500eb89 [2024-09-22 14:40:04,153 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-22 14:40:04,154 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-22 14:40:04,157 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-22 14:40:04,157 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-22 14:40:04,162 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-22 14:40:04,162 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,164 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6e52d52b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04, skipping insertion in model container [2024-09-22 14:40:04,164 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,182 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-22 14:40:04,312 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-more-sum-array-hom.wvr.c[2435,2448] [2024-09-22 14:40:04,319 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 14:40:04,325 INFO L200 MainTranslator]: Completed pre-run [2024-09-22 14:40:04,340 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-more-sum-array-hom.wvr.c[2435,2448] [2024-09-22 14:40:04,342 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-22 14:40:04,356 INFO L204 MainTranslator]: Completed translation [2024-09-22 14:40:04,357 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04 WrapperNode [2024-09-22 14:40:04,357 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-22 14:40:04,357 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-22 14:40:04,358 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-22 14:40:04,358 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-22 14:40:04,372 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,381 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,418 INFO L138 Inliner]: procedures = 24, calls = 19, calls flagged for inlining = 7, calls inlined = 7, statements flattened = 87 [2024-09-22 14:40:04,419 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-22 14:40:04,423 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-22 14:40:04,423 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-22 14:40:04,424 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-22 14:40:04,435 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,435 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,438 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,439 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,447 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,454 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,456 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,457 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,459 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-22 14:40:04,459 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-22 14:40:04,459 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-22 14:40:04,460 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-22 14:40:04,460 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (1/1) ... [2024-09-22 14:40:04,464 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-22 14:40:04,471 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:40:04,483 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 14:40:04,485 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 14:40:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-22 14:40:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-22 14:40:04,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-22 14:40:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-22 14:40:04,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-22 14:40:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2024-09-22 14:40:04,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2024-09-22 14:40:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-22 14:40:04,524 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-22 14:40:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-22 14:40:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-22 14:40:04,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-22 14:40:04,525 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-22 14:40:04,526 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 14:40:04,605 INFO L242 CfgBuilder]: Building ICFG [2024-09-22 14:40:04,607 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-22 14:40:04,758 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-22 14:40:04,758 INFO L291 CfgBuilder]: Performing block encoding [2024-09-22 14:40:04,905 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-22 14:40:04,905 INFO L318 CfgBuilder]: Removed 4 assume(true) statements. [2024-09-22 14:40:04,905 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:40:04 BoogieIcfgContainer [2024-09-22 14:40:04,906 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-22 14:40:04,909 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-22 14:40:04,909 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-22 14:40:04,912 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-22 14:40:04,912 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.09 02:40:04" (1/3) ... [2024-09-22 14:40:04,912 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bedcaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:40:04, skipping insertion in model container [2024-09-22 14:40:04,913 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.09 02:40:04" (2/3) ... [2024-09-22 14:40:04,914 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bedcaad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.09 02:40:04, skipping insertion in model container [2024-09-22 14:40:04,914 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.09 02:40:04" (3/3) ... [2024-09-22 14:40:04,915 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-sum-array-hom.wvr.c [2024-09-22 14:40:04,928 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-22 14:40:04,928 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-22 14:40:04,928 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-22 14:40:04,970 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2024-09-22 14:40:05,006 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 14:40:05,006 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-22 14:40:05,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:40:05,008 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 14:40:05,010 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 14:40:05,041 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-22 14:40:05,052 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-22 14:40:05,059 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;@12373017, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-22 14:40:05,059 INFO L337 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2024-09-22 14:40:05,164 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 1 more)] === [2024-09-22 14:40:05,168 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:40:05,169 INFO L85 PathProgramCache]: Analyzing trace with hash 1321040005, now seen corresponding path program 1 times [2024-09-22 14:40:05,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:40:05,176 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646975258] [2024-09-22 14:40:05,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:40:05,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:40:05,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:40:05,603 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-09-22 14:40:05,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:40:05,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646975258] [2024-09-22 14:40:05,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646975258] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-22 14:40:05,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-22 14:40:05,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-22 14:40:05,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [490668454] [2024-09-22 14:40:05,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-22 14:40:05,610 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-22 14:40:05,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:40:05,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-22 14:40:05,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-22 14:40:05,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:40:05,629 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:40:05,629 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 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 14:40:05,630 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:40:05,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 14:40:05,684 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-22 14:40:05,685 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 1 more)] === [2024-09-22 14:40:05,685 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:40:05,685 INFO L85 PathProgramCache]: Analyzing trace with hash -1383917308, now seen corresponding path program 1 times [2024-09-22 14:40:05,685 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:40:05,685 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844977416] [2024-09-22 14:40:05,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:40:05,686 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:40:05,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:40:05,863 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:40:05,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:40:05,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844977416] [2024-09-22 14:40:05,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844977416] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:40:05,864 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1134818158] [2024-09-22 14:40:05,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:40:05,864 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:40:05,864 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:40:05,873 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 14:40:05,874 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 14:40:05,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:40:05,959 INFO L262 TraceCheckSpWp]: Trace formula consists of 187 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-22 14:40:05,963 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:40:06,122 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:40:06,123 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:40:06,195 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:40:06,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1134818158] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:40:06,195 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:40:06,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2024-09-22 14:40:06,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [618910917] [2024-09-22 14:40:06,197 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:40:06,198 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-22 14:40:06,198 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:40:06,199 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-22 14:40:06,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2024-09-22 14:40:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:40:06,201 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:40:06,201 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5714285714285716) internal successors, (50), 13 states have internal predecessors, (50), 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 14:40:06,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 14:40:06,202 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:40:06,325 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 14:40:06,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:40:06,340 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-22 14:40:06,529 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 14:40:06,530 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 1 more)] === [2024-09-22 14:40:06,531 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:40:06,531 INFO L85 PathProgramCache]: Analyzing trace with hash 661751909, now seen corresponding path program 2 times [2024-09-22 14:40:06,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:40:06,531 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439718117] [2024-09-22 14:40:06,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:40:06,531 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:40:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:40:06,721 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 2 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:40:06,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:40:06,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439718117] [2024-09-22 14:40:06,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439718117] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:40:06,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [194365090] [2024-09-22 14:40:06,722 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-22 14:40:06,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:40:06,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:40:06,724 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 14:40:06,726 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 14:40:06,790 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-22 14:40:06,790 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 14:40:06,791 INFO L262 TraceCheckSpWp]: Trace formula consists of 196 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-09-22 14:40:06,793 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:40:06,916 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:40:06,916 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:40:07,039 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:40:07,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [194365090] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:40:07,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:40:07,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2024-09-22 14:40:07,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693615548] [2024-09-22 14:40:07,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:40:07,042 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-22 14:40:07,042 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:40:07,045 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-22 14:40:07,045 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2024-09-22 14:40:07,046 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:40:07,046 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:40:07,047 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.3333333333333335) internal successors, (49), 20 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 14:40:07,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 14:40:07,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:40:07,047 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:40:07,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 14:40:07,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:40:07,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-22 14:40:07,303 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 14:40:07,490 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 14:40:07,491 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 1 more)] === [2024-09-22 14:40:07,491 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:40:07,491 INFO L85 PathProgramCache]: Analyzing trace with hash -2040560570, now seen corresponding path program 1 times [2024-09-22 14:40:07,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:40:07,492 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [994074561] [2024-09-22 14:40:07,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:40:07,492 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:40:07,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:40:07,626 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:40:07,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:40:07,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [994074561] [2024-09-22 14:40:07,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [994074561] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:40:07,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1768557603] [2024-09-22 14:40:07,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:40:07,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:40:07,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:40:07,628 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 14:40:07,629 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 14:40:07,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:40:07,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-22 14:40:07,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:40:07,800 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 7 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-22 14:40:07,800 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:40:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 9 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-22 14:40:07,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1768557603] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-22 14:40:07,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-22 14:40:07,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 22 [2024-09-22 14:40:07,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [641597029] [2024-09-22 14:40:07,922 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-22 14:40:07,922 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-09-22 14:40:07,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-22 14:40:07,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-09-22 14:40:07,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=401, Unknown=0, NotChecked=0, Total=506 [2024-09-22 14:40:07,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:40:07,923 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-22 14:40:07,923 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.608695652173913) internal successors, (60), 22 states have internal predecessors, (60), 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 14:40:07,923 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-22 14:40:07,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:40:07,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-22 14:40:07,924 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-22 14:40:08,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-22 14:40:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-22 14:40:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-22 14:40:08,049 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-22 14:40:08,062 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-22 14:40:08,249 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 14:40:08,250 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 1 more)] === [2024-09-22 14:40:08,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-22 14:40:08,250 INFO L85 PathProgramCache]: Analyzing trace with hash 2060802855, now seen corresponding path program 2 times [2024-09-22 14:40:08,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-22 14:40:08,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [767055179] [2024-09-22 14:40:08,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-22 14:40:08,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-22 14:40:08,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-22 14:40:09,393 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:40:09,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-22 14:40:09,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [767055179] [2024-09-22 14:40:09,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [767055179] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-22 14:40:09,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [548097767] [2024-09-22 14:40:09,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-22 14:40:09,393 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-22 14:40:09,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-22 14:40:09,396 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 14:40:09,398 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 14:40:09,530 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-22 14:40:09,530 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-22 14:40:09,537 INFO L262 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 56 conjuncts are in the unsatisfiable core [2024-09-22 14:40:09,539 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-22 14:40:09,660 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 1 [2024-09-22 14:40:10,340 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-22 14:40:10,342 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-22 14:40:10,343 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-22 14:40:10,343 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-22 14:40:10,344 INFO L173 IndexEqualityManager]: detected equality via solver [2024-09-22 14:40:10,345 INFO L190 IndexEqualityManager]: detected not equals via solver [2024-09-22 14:40:10,353 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-22 14:40:10,353 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 49 treesize of output 21 [2024-09-22 14:40:10,426 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-22 14:40:10,426 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-22 14:40:11,529 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 100 treesize of output 88 [2024-09-22 14:40:12,000 INFO L349 Elim1Store]: treesize reduction 45, result has 15.1 percent of original size [2024-09-22 14:40:12,001 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 0 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 674 treesize of output 442 [2024-09-22 14:40:20,662 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:40:21,123 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:40:26,893 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:40:30,168 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:40:30,847 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:40:38,575 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:18,573 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:19,233 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:29,482 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:33,588 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:33,901 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-22 14:41:34,036 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-22 14:41:34,215 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:34,952 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:35,915 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-22 14:41:36,204 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-09-22 14:41:36,329 WARN L672 sPolynomialRelations]: Constructing 256(two to the power of 8 dual juncts. [2024-09-22 14:41:36,442 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-22 14:41:36,577 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:37,455 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:37,714 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-22 14:41:37,805 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-22 14:41:37,927 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:39,502 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:41,218 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:45,357 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:45,487 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:47,233 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:47,729 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-22 14:41:47,839 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-22 14:41:47,955 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:49,861 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:41:49,965 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:42:34,526 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:42:36,141 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:42:36,572 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:42:36,851 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-22 14:42:37,077 WARN L672 sPolynomialRelations]: Constructing 128(two to the power of 7 dual juncts. [2024-09-22 14:42:37,400 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:42:37,685 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:42:38,489 WARN L672 sPolynomialRelations]: Constructing 64(two to the power of 6 dual juncts. [2024-09-22 14:45:10,988 WARN L293 SmtUtils]: Spent 6.63s on a formula simplification that was a NOOP. DAG size: 14 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-22 14:45:25,395 WARN L293 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 17 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) [2024-09-22 14:47:57,588 WARN L293 SmtUtils]: Spent 5.23s on a formula simplification that was a NOOP. DAG size: 18 (called from [L 731] de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.simplify) Killed by 15