./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a4c57e3 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/GemCutterReach.xml -i ../../../trunk/examples/svcomp/weaver/popl20-channel-sum.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 5b29ee6f81c7ed2984792cb48e45a380cefe6f3d0c807482de3b6756d33333e4 --- Real Ultimate output --- This is Ultimate 0.2.4-wip.fs.witness-ghost-4a4c57e-m [2024-09-08 20:27:37,379 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-08 20:27:37,438 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-09-08 20:27:37,443 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-08 20:27:37,444 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-08 20:27:37,468 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-08 20:27:37,469 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-08 20:27:37,469 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-08 20:27:37,470 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-08 20:27:37,471 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-08 20:27:37,471 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-08 20:27:37,471 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-08 20:27:37,472 INFO L153 SettingsManager]: * Use SBE=true [2024-09-08 20:27:37,474 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-08 20:27:37,474 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-08 20:27:37,474 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-08 20:27:37,474 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-08 20:27:37,474 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-08 20:27:37,475 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-08 20:27:37,475 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-08 20:27:37,475 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-08 20:27:37,482 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-08 20:27:37,482 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-08 20:27:37,482 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-08 20:27:37,483 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-08 20:27:37,483 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-08 20:27:37,483 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-08 20:27:37,483 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-08 20:27:37,483 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-08 20:27:37,484 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-08 20:27:37,484 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 20:27:37,484 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-08 20:27:37,484 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-08 20:27:37,484 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-08 20:27:37,484 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-08 20:27:37,484 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-09-08 20:27:37,485 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-08 20:27:37,485 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-08 20:27:37,485 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-09-08 20:27:37,486 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-09-08 20:27:37,486 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-09-08 20:27:37,487 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 5b29ee6f81c7ed2984792cb48e45a380cefe6f3d0c807482de3b6756d33333e4 [2024-09-08 20:27:37,690 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-08 20:27:37,704 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-08 20:27:37,705 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-08 20:27:37,706 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-08 20:27:37,706 INFO L274 PluginConnector]: CDTParser initialized [2024-09-08 20:27:37,707 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c [2024-09-08 20:27:38,945 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-08 20:27:39,115 INFO L384 CDTParser]: Found 1 translation units. [2024-09-08 20:27:39,116 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c [2024-09-08 20:27:39,123 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/41870894b/5971d1332447424684d637a4b3f19025/FLAG530fe9e5c [2024-09-08 20:27:39,525 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/41870894b/5971d1332447424684d637a4b3f19025 [2024-09-08 20:27:39,527 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-08 20:27:39,529 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-08 20:27:39,531 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-08 20:27:39,531 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-08 20:27:39,535 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-08 20:27:39,536 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,537 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4e717de3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39, skipping insertion in model container [2024-09-08 20:27:39,537 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,561 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-08 20:27:39,746 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c[2973,2986] [2024-09-08 20:27:39,758 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 20:27:39,765 INFO L200 MainTranslator]: Completed pre-run [2024-09-08 20:27:39,780 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-channel-sum.wvr.c[2973,2986] [2024-09-08 20:27:39,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-08 20:27:39,794 INFO L204 MainTranslator]: Completed translation [2024-09-08 20:27:39,795 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39 WrapperNode [2024-09-08 20:27:39,795 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-08 20:27:39,796 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-08 20:27:39,796 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-08 20:27:39,796 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-08 20:27:39,804 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,814 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,836 INFO L138 Inliner]: procedures = 23, calls = 35, calls flagged for inlining = 10, calls inlined = 10, statements flattened = 146 [2024-09-08 20:27:39,837 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-08 20:27:39,837 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-08 20:27:39,837 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-08 20:27:39,840 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-08 20:27:39,847 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,847 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,855 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,855 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,860 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,865 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,866 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,867 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,870 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-08 20:27:39,871 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-08 20:27:39,871 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-08 20:27:39,871 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-08 20:27:39,872 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (1/1) ... [2024-09-08 20:27:39,877 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-09-08 20:27:39,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:27:39,904 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2024-09-08 20:27:39,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2024-09-08 20:27:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-08 20:27:39,967 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2024-09-08 20:27:39,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2024-09-08 20:27:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2024-09-08 20:27:39,968 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2024-09-08 20:27:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-09-08 20:27:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2024-09-08 20:27:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-09-08 20:27:39,968 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-09-08 20:27:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2024-09-08 20:27:39,969 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-08 20:27:39,969 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-08 20:27:39,970 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2024-09-08 20:27:39,972 WARN L211 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement. [2024-09-08 20:27:40,098 INFO L242 CfgBuilder]: Building ICFG [2024-09-08 20:27:40,100 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-08 20:27:40,334 INFO L287 CfgBuilder]: Omitted future-live optimization because the input is a concurrent program. [2024-09-08 20:27:40,334 INFO L291 CfgBuilder]: Performing block encoding [2024-09-08 20:27:40,507 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-08 20:27:40,507 INFO L318 CfgBuilder]: Removed 3 assume(true) statements. [2024-09-08 20:27:40,508 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:27:40 BoogieIcfgContainer [2024-09-08 20:27:40,508 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-08 20:27:40,511 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-08 20:27:40,511 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-08 20:27:40,515 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-08 20:27:40,515 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 08.09 08:27:39" (1/3) ... [2024-09-08 20:27:40,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150a6301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:27:40, skipping insertion in model container [2024-09-08 20:27:40,516 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 08.09 08:27:39" (2/3) ... [2024-09-08 20:27:40,516 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@150a6301 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 08.09 08:27:40, skipping insertion in model container [2024-09-08 20:27:40,517 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:27:40" (3/3) ... [2024-09-08 20:27:40,519 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-channel-sum.wvr.c [2024-09-08 20:27:40,532 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-08 20:27:40,533 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-09-08 20:27:40,533 INFO L484 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-09-08 20:27:40,578 INFO L144 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2024-09-08 20:27:40,622 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 20:27:40,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-09-08 20:27:40,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:27:40,626 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2024-09-08 20:27:40,628 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2024-09-08 20:27:40,654 INFO L157 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-09-08 20:27:40,665 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-09-08 20:27:40,670 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;@43209b15, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-08 20:27:40,670 INFO L337 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-09-08 20:27:40,746 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:40,751 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:40,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1797143371, now seen corresponding path program 1 times [2024-09-08 20:27:40,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:40,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1532050272] [2024-09-08 20:27:40,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:40,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:40,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:40,991 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:27:40,992 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:40,992 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1532050272] [2024-09-08 20:27:40,993 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1532050272] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 20:27:40,993 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 20:27:40,993 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 20:27:40,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841898132] [2024-09-08 20:27:40,994 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 20:27:40,997 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-09-08 20:27:40,997 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:41,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-09-08 20:27:41,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-09-08 20:27:41,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,016 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:41,017 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 9.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:41,017 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,049 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-08 20:27:41,049 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:41,049 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:41,049 INFO L85 PathProgramCache]: Analyzing trace with hash -1416837699, now seen corresponding path program 1 times [2024-09-08 20:27:41,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:41,050 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [160586445] [2024-09-08 20:27:41,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:41,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:41,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:41,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:27:41,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:41,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [160586445] [2024-09-08 20:27:41,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [160586445] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 20:27:41,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 20:27:41,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 20:27:41,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1490532371] [2024-09-08 20:27:41,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 20:27:41,259 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 20:27:41,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:41,260 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 20:27:41,260 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 20:27:41,260 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,260 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:41,261 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.75) internal successors, (19), 3 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:41,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,261 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:41,310 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-08 20:27:41,310 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:41,310 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:41,310 INFO L85 PathProgramCache]: Analyzing trace with hash -1488497340, now seen corresponding path program 1 times [2024-09-08 20:27:41,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:41,310 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1310513764] [2024-09-08 20:27:41,310 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:41,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:41,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:41,512 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 20:27:41,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:41,512 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1310513764] [2024-09-08 20:27:41,512 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1310513764] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 20:27:41,512 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 20:27:41,512 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-08 20:27:41,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2003461464] [2024-09-08 20:27:41,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 20:27:41,513 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 20:27:41,513 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:41,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 20:27:41,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 20:27:41,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,514 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:41,519 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:41,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:41,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:41,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:41,594 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-08 20:27:41,594 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:41,594 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:41,594 INFO L85 PathProgramCache]: Analyzing trace with hash -1847523670, now seen corresponding path program 1 times [2024-09-08 20:27:41,594 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:41,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290812263] [2024-09-08 20:27:41,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:41,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:41,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:41,660 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 20:27:41,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:41,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290812263] [2024-09-08 20:27:41,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290812263] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 20:27:41,661 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 20:27:41,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-09-08 20:27:41,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125962364] [2024-09-08 20:27:41,661 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 20:27:41,661 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-08 20:27:41,662 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:41,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-08 20:27:41,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-08 20:27:41,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,662 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:41,663 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 2 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:41,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:41,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:41,663 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:41,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:41,809 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-08 20:27:41,810 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:41,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:41,810 INFO L85 PathProgramCache]: Analyzing trace with hash 1651008730, now seen corresponding path program 1 times [2024-09-08 20:27:41,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:41,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [819494281] [2024-09-08 20:27:41,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:41,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:41,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:42,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:27:42,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:42,351 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [819494281] [2024-09-08 20:27:42,352 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [819494281] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:27:42,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534447328] [2024-09-08 20:27:42,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:42,352 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:27:42,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:27:42,355 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 20:27:42,357 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-08 20:27:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:42,421 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-08 20:27:42,425 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:27:42,497 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 23 treesize of output 1 [2024-09-08 20:27:42,743 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:27:42,743 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:27:43,303 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 61 treesize of output 55 [2024-09-08 20:27:43,318 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 20:27:43,319 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 78 treesize of output 68 [2024-09-08 20:27:43,423 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:27:43,424 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534447328] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:27:43,424 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:27:43,424 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 19 [2024-09-08 20:27:43,424 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101190609] [2024-09-08 20:27:43,424 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:27:43,425 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-08 20:27:43,425 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:43,426 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-08 20:27:43,426 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=104, Invalid=276, Unknown=0, NotChecked=0, Total=380 [2024-09-08 20:27:43,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:43,426 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:43,427 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.55) internal successors, (71), 19 states have internal predecessors, (71), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:43,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:43,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:43,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:43,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:43,427 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:43,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 20:27:43,818 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-08 20:27:44,005 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:27:44,005 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:44,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:44,006 INFO L85 PathProgramCache]: Analyzing trace with hash 1012500609, now seen corresponding path program 2 times [2024-09-08 20:27:44,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:44,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2098891544] [2024-09-08 20:27:44,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:44,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:44,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:45,248 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:27:45,248 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:45,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2098891544] [2024-09-08 20:27:45,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2098891544] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:27:45,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2095107197] [2024-09-08 20:27:45,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 20:27:45,249 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:27:45,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:27:45,252 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 20:27:45,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-08 20:27:45,322 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 20:27:45,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:27:45,324 INFO L262 TraceCheckSpWp]: Trace formula consists of 183 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-09-08 20:27:45,325 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:27:45,466 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 20:27:45,466 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:27:45,546 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 20:27:45,546 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 40 treesize of output 24 [2024-09-08 20:27:45,628 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-09-08 20:27:45,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2095107197] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:27:45,629 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:27:45,629 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 7, 4] total 18 [2024-09-08 20:27:45,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1791123944] [2024-09-08 20:27:45,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:27:45,629 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-08 20:27:45,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:45,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-08 20:27:45,630 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-09-08 20:27:45,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:45,630 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:45,631 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.052631578947368) internal successors, (77), 18 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:45,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:45,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:45,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:45,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:45,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 20:27:45,631 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-08 20:27:46,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:46,138 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-08 20:27:46,326 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:27:46,326 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:46,327 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:46,327 INFO L85 PathProgramCache]: Analyzing trace with hash -1748156328, now seen corresponding path program 3 times [2024-09-08 20:27:46,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:46,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [724371165] [2024-09-08 20:27:46,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:46,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:46,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:46,433 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 4 proven. 2 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 20:27:46,433 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:46,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [724371165] [2024-09-08 20:27:46,433 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [724371165] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:27:46,433 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [131723019] [2024-09-08 20:27:46,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 20:27:46,434 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:27:46,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:27:46,439 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 20:27:46,439 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-08 20:27:46,494 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-08 20:27:46,494 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:27:46,495 INFO L262 TraceCheckSpWp]: Trace formula consists of 175 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-08 20:27:46,496 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:27:46,535 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 20:27:46,535 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:27:46,595 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 3 proven. 3 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 20:27:46,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [131723019] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:27:46,595 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:27:46,595 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 9 [2024-09-08 20:27:46,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1276463267] [2024-09-08 20:27:46,596 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:27:46,596 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-08 20:27:46,596 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:46,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-08 20:27:46,597 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2024-09-08 20:27:46,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:46,597 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:46,597 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 5.4) internal successors, (54), 9 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:46,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:46,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:46,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:46,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:46,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-09-08 20:27:46,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:46,597 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:46,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:27:46,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-08 20:27:47,005 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:27:47,005 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:47,006 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:47,006 INFO L85 PathProgramCache]: Analyzing trace with hash -279063058, now seen corresponding path program 4 times [2024-09-08 20:27:47,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:47,006 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1001549249] [2024-09-08 20:27:47,006 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:47,006 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:47,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:47,140 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2024-09-08 20:27:47,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:47,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1001549249] [2024-09-08 20:27:47,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1001549249] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-08 20:27:47,141 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-08 20:27:47,141 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-08 20:27:47,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997277472] [2024-09-08 20:27:47,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-08 20:27:47,143 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-08 20:27:47,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:47,143 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-08 20:27:47,143 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-08 20:27:47,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:47,144 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:47,144 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:47,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:47,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:47,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:47,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:47,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:47,144 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:47,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:27:47,145 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:47,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:47,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:27:47,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:47,220 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-08 20:27:47,221 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:47,221 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:47,221 INFO L85 PathProgramCache]: Analyzing trace with hash 429527119, now seen corresponding path program 1 times [2024-09-08 20:27:47,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:47,221 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106834011] [2024-09-08 20:27:47,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:47,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:47,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:48,667 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:27:48,668 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:48,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106834011] [2024-09-08 20:27:48,669 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106834011] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:27:48,669 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2052842441] [2024-09-08 20:27:48,669 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:48,669 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:27:48,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:27:48,671 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 20:27:48,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-08 20:27:48,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:48,740 INFO L262 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-08 20:27:48,741 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:27:49,020 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 20:27:49,020 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:27:49,219 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 20:27:49,220 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 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 75 treesize of output 60 [2024-09-08 20:27:49,308 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-08 20:27:49,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2052842441] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:27:49,308 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:27:49,308 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 11, 7] total 30 [2024-09-08 20:27:49,309 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157096799] [2024-09-08 20:27:49,309 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:27:49,310 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-09-08 20:27:49,310 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:49,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-09-08 20:27:49,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=161, Invalid=769, Unknown=0, NotChecked=0, Total=930 [2024-09-08 20:27:49,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:49,311 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:49,311 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 3.4193548387096775) internal successors, (106), 30 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:49,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:49,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:49,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:49,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:49,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:49,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:49,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:27:49,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:49,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:49,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:27:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:49,907 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-09-08 20:27:49,924 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-08 20:27:50,111 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-09-08 20:27:50,113 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:50,114 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:50,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1607493344, now seen corresponding path program 2 times [2024-09-08 20:27:50,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:50,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120056816] [2024-09-08 20:27:50,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:50,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:52,247 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 53 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-08 20:27:52,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:52,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120056816] [2024-09-08 20:27:52,248 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120056816] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:27:52,248 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1775244797] [2024-09-08 20:27:52,248 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-08 20:27:52,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:27:52,248 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:27:52,249 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 20:27:52,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-08 20:27:52,339 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-08 20:27:52,339 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:27:52,341 INFO L262 TraceCheckSpWp]: Trace formula consists of 240 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-09-08 20:27:52,343 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:27:52,804 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 5 proven. 47 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-09-08 20:27:52,804 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:27:53,232 INFO L349 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2024-09-08 20:27:53,233 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 108 treesize of output 114 [2024-09-08 20:27:53,381 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-08 20:27:53,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1775244797] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:27:53,382 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:27:53,382 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 15, 10] total 40 [2024-09-08 20:27:53,382 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768160756] [2024-09-08 20:27:53,382 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:27:53,382 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2024-09-08 20:27:53,383 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:53,383 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2024-09-08 20:27:53,384 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=191, Invalid=1449, Unknown=0, NotChecked=0, Total=1640 [2024-09-08 20:27:53,384 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:53,384 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:53,384 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 41 states have (on average 3.2439024390243905) internal successors, (133), 40 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:53,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:53,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:53,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:53,384 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:53,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:53,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:53,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:27:53,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:53,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-09-08 20:27:53,385 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 20:27:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:55,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2024-09-08 20:27:55,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2024-09-08 20:27:55,127 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-08 20:27:55,318 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-08 20:27:55,319 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-09-08 20:27:55,319 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-08 20:27:55,320 INFO L85 PathProgramCache]: Analyzing trace with hash -1126611851, now seen corresponding path program 3 times [2024-09-08 20:27:55,320 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-08 20:27:55,320 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018687814] [2024-09-08 20:27:55,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-08 20:27:55,320 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-08 20:27:55,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-08 20:27:55,619 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 79 proven. 42 refuted. 0 times theorem prover too weak. 80 trivial. 0 not checked. [2024-09-08 20:27:55,619 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-08 20:27:55,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018687814] [2024-09-08 20:27:55,619 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018687814] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-08 20:27:55,619 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528689033] [2024-09-08 20:27:55,619 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-08 20:27:55,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-08 20:27:55,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-09-08 20:27:55,621 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-08 20:27:55,625 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-08 20:27:55,720 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2024-09-08 20:27:55,720 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-08 20:27:55,721 INFO L262 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-08 20:27:55,723 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-08 20:27:55,840 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 109 proven. 38 refuted. 0 times theorem prover too weak. 54 trivial. 0 not checked. [2024-09-08 20:27:55,840 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-08 20:27:55,939 INFO L134 CoverageAnalysis]: Checked inductivity of 201 backedges. 125 proven. 10 refuted. 0 times theorem prover too weak. 66 trivial. 0 not checked. [2024-09-08 20:27:55,940 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1528689033] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-08 20:27:55,940 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-08 20:27:55,940 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 10, 9] total 15 [2024-09-08 20:27:55,940 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919717336] [2024-09-08 20:27:55,940 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-08 20:27:55,941 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-08 20:27:55,941 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-08 20:27:55,942 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-08 20:27:55,942 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=162, Unknown=0, NotChecked=0, Total=210 [2024-09-08 20:27:55,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:55,942 INFO L474 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-09-08 20:27:55,943 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 6.4) internal successors, (96), 15 states have internal predecessors, (96), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 25 states. [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2024-09-08 20:27:55,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-09-08 20:27:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-08 20:27:57,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-08 20:27:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-08 20:27:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-08 20:27:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-08 20:27:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-09-08 20:27:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2024-09-08 20:27:57,723 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-09-08 20:27:57,725 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (2 of 3 remaining) [2024-09-08 20:27:57,726 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (1 of 3 remaining) [2024-09-08 20:27:57,726 INFO L785 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 3 remaining) [2024-09-08 20:27:57,739 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-08 20:27:57,926 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,SelfDestructingSolverStorable10 [2024-09-08 20:27:57,931 INFO L408 BasicCegarLoop]: Path program histogram: [4, 3, 1, 1, 1, 1] [2024-09-08 20:27:57,933 INFO L234 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2024-09-08 20:27:57,933 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-08 20:27:57,939 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 08.09 08:27:57 BasicIcfg [2024-09-08 20:27:57,939 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-08 20:27:57,940 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-08 20:27:57,951 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-08 20:27:57,951 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-08 20:27:57,952 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 08.09 08:27:40" (3/4) ... [2024-09-08 20:27:57,953 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-08 20:27:57,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread1 [2024-09-08 20:27:57,957 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure thread2 [2024-09-08 20:27:57,962 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 77 nodes and edges [2024-09-08 20:27:57,963 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2024-09-08 20:27:57,963 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2024-09-08 20:27:57,963 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2024-09-08 20:27:58,032 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.graphml [2024-09-08 20:27:58,032 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/witness.yml [2024-09-08 20:27:58,032 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-08 20:27:58,033 INFO L158 Benchmark]: Toolchain (without parser) took 18503.78ms. Allocated memory was 148.9MB in the beginning and 595.6MB in the end (delta: 446.7MB). Free memory was 78.6MB in the beginning and 552.3MB in the end (delta: -473.7MB). Peak memory consumption was 321.9MB. Max. memory is 16.1GB. [2024-09-08 20:27:58,033 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 20:27:58,033 INFO L158 Benchmark]: CACSL2BoogieTranslator took 264.37ms. Allocated memory is still 148.9MB. Free memory was 78.5MB in the beginning and 114.2MB in the end (delta: -35.7MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. [2024-09-08 20:27:58,034 INFO L158 Benchmark]: Boogie Procedure Inliner took 41.10ms. Allocated memory is still 148.9MB. Free memory was 114.2MB in the beginning and 112.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-08 20:27:58,034 INFO L158 Benchmark]: Boogie Preprocessor took 32.60ms. Allocated memory is still 148.9MB. Free memory was 112.1MB in the beginning and 110.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-08 20:27:58,034 INFO L158 Benchmark]: RCFGBuilder took 637.56ms. Allocated memory is still 148.9MB. Free memory was 110.6MB in the beginning and 72.3MB in the end (delta: 38.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. [2024-09-08 20:27:58,034 INFO L158 Benchmark]: TraceAbstraction took 17428.47ms. Allocated memory was 148.9MB in the beginning and 595.6MB in the end (delta: 446.7MB). Free memory was 71.8MB in the beginning and 208.0MB in the end (delta: -136.2MB). Peak memory consumption was 309.4MB. Max. memory is 16.1GB. [2024-09-08 20:27:58,034 INFO L158 Benchmark]: Witness Printer took 92.89ms. Allocated memory is still 595.6MB. Free memory was 208.0MB in the beginning and 552.3MB in the end (delta: -344.3MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. [2024-09-08 20:27:58,035 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 148.9MB. Free memory is still 105.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 264.37ms. Allocated memory is still 148.9MB. Free memory was 78.5MB in the beginning and 114.2MB in the end (delta: -35.7MB). Peak memory consumption was 9.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 41.10ms. Allocated memory is still 148.9MB. Free memory was 114.2MB in the beginning and 112.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.60ms. Allocated memory is still 148.9MB. Free memory was 112.1MB in the beginning and 110.6MB in the end (delta: 1.6MB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 637.56ms. Allocated memory is still 148.9MB. Free memory was 110.6MB in the beginning and 72.3MB in the end (delta: 38.3MB). Peak memory consumption was 39.8MB. Max. memory is 16.1GB. * TraceAbstraction took 17428.47ms. Allocated memory was 148.9MB in the beginning and 595.6MB in the end (delta: 446.7MB). Free memory was 71.8MB in the beginning and 208.0MB in the end (delta: -136.2MB). Peak memory consumption was 309.4MB. Max. memory is 16.1GB. * Witness Printer took 92.89ms. Allocated memory is still 595.6MB. Free memory was 208.0MB in the beginning and 552.3MB in the end (delta: -344.3MB). Peak memory consumption was 2.8MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Partial order reduction statistics Independence relation #1 benchmarks: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8655, independent: 6852, independent conditional: 6475, independent unconditional: 377, dependent: 1803, dependent conditional: 1793, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6906, independent: 6852, independent conditional: 6475, independent unconditional: 377, dependent: 54, dependent conditional: 44, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6906, independent: 6852, independent conditional: 6475, independent unconditional: 377, dependent: 54, dependent conditional: 44, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7259, independent: 6852, independent conditional: 6475, independent unconditional: 377, dependent: 407, dependent conditional: 397, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7259, independent: 6852, independent conditional: 73, independent unconditional: 6779, dependent: 407, dependent conditional: 194, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7259, independent: 6852, independent conditional: 73, independent unconditional: 6779, dependent: 407, dependent conditional: 194, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 359, independent: 324, independent conditional: 11, independent unconditional: 313, dependent: 35, dependent conditional: 25, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 359, independent: 312, independent conditional: 0, independent unconditional: 312, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 47, independent: 12, independent conditional: 11, independent unconditional: 1, dependent: 35, dependent conditional: 25, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, independent: 12, independent conditional: 11, independent unconditional: 1, dependent: 35, dependent conditional: 25, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, independent: 33, independent conditional: 11, independent unconditional: 22, dependent: 66, dependent conditional: 44, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7259, independent: 6528, independent conditional: 62, independent unconditional: 6466, dependent: 372, dependent conditional: 169, dependent unconditional: 203, unknown: 359, unknown conditional: 36, unknown unconditional: 323] , Statistics on independence cache: Total cache size (in pairs): 359, Positive cache size: 324, Positive conditional cache size: 11, Positive unconditional cache size: 313, Negative cache size: 35, Negative conditional cache size: 25, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6605, Maximal queried relation: 9, Independence queries for same thread: 1749, Persistent sets #1 benchmarks: Persistent set computation time: 0.1s, Number of persistent set computation: 125, Number of trivial persistent sets: 98, Underlying independence relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 387, independent: 377, independent conditional: 0, independent unconditional: 377, dependent: 10, dependent conditional: 0, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 8655, independent: 6852, independent conditional: 6475, independent unconditional: 377, dependent: 1803, dependent conditional: 1793, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 6906, independent: 6852, independent conditional: 6475, independent unconditional: 377, dependent: 54, dependent conditional: 44, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 6906, independent: 6852, independent conditional: 6475, independent unconditional: 377, dependent: 54, dependent conditional: 44, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 7259, independent: 6852, independent conditional: 6475, independent unconditional: 377, dependent: 407, dependent conditional: 397, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 7259, independent: 6852, independent conditional: 73, independent unconditional: 6779, dependent: 407, dependent conditional: 194, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 7259, independent: 6852, independent conditional: 73, independent unconditional: 6779, dependent: 407, dependent conditional: 194, dependent unconditional: 213, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 359, independent: 324, independent conditional: 11, independent unconditional: 313, dependent: 35, dependent conditional: 25, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 359, independent: 312, independent conditional: 0, independent unconditional: 312, dependent: 47, dependent conditional: 0, dependent unconditional: 47, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Independence Queries: [ total: 47, independent: 12, independent conditional: 11, independent unconditional: 1, dependent: 35, dependent conditional: 25, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ProtectedIndependenceRelation.Statistics on underlying relation: SemanticIndependenceRelation.Independence Queries: [ total: 47, independent: 12, independent conditional: 11, independent unconditional: 1, dependent: 35, dependent conditional: 25, dependent unconditional: 10, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 99, independent: 33, independent conditional: 11, independent unconditional: 22, dependent: 66, dependent conditional: 44, dependent unconditional: 21, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Protected Queries: 0 ], Cache Queries: [ total: 7259, independent: 6528, independent conditional: 62, independent unconditional: 6466, dependent: 372, dependent conditional: 169, dependent unconditional: 203, unknown: 359, unknown conditional: 36, unknown unconditional: 323] , Statistics on independence cache: Total cache size (in pairs): 359, Positive cache size: 324, Positive conditional cache size: 11, Positive unconditional cache size: 313, Negative cache size: 35, Negative conditional cache size: 25, Negative unconditional cache size: 10, Unknown cache size: 0, Unknown conditional cache size: 0, Unknown unconditional cache size: 0, Eliminated conditions: 6605, Maximal queried relation: 9, Independence queries for same thread: 1749 - PositiveResult [Line: 105]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 48 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 17.3s, OverallIterations: 11, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 5.6s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 156, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 9.4s InterpolantComputationTime, 645 NumberOfCodeBlocks, 615 NumberOfCodeBlocksAsserted, 24 NumberOfCheckSat, 887 ConstructedInterpolants, 0 QuantifiedInterpolants, 10054 SizeOfPredicates, 51 NumberOfNonLiveVariables, 1224 ConjunctsInSsa, 145 ConjunctsInUnsatCore, 23 InterpolantComputations, 5 PerfectInterpolantSequences, 657/995 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2024-09-08 20:27:58,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2024-09-08 20:27:58,260 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE