./Ultimate.py --spec ../../../trunk/examples/svcomp/properties/unreach-call.prp --file ../../../trunk/examples/svcomp/pthread/fib_safe-10.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2520d7ca 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/pthread/fib_safe-10.i -s /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer GemCutter --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 4d0c5b9355e30d5caa4f24695b56ab4fa8d9d282078ca8b4e24a8f9b8920e450 --- Real Ultimate output --- This is Ultimate 0.2.4-tmp.fs.goblint-validation-2520d7c-m [2024-07-17 08:27:13,268 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-07-17 08:27:13,340 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/config/svcomp-Reach-32bit-GemCutter_Default.epf [2024-07-17 08:27:13,347 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-07-17 08:27:13,348 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-07-17 08:27:13,366 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-07-17 08:27:13,369 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-07-17 08:27:13,369 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-07-17 08:27:13,370 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-07-17 08:27:13,374 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-07-17 08:27:13,375 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-07-17 08:27:13,375 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-07-17 08:27:13,376 INFO L153 SettingsManager]: * Use SBE=true [2024-07-17 08:27:13,377 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-07-17 08:27:13,377 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-07-17 08:27:13,377 INFO L153 SettingsManager]: * sizeof long=4 [2024-07-17 08:27:13,377 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-07-17 08:27:13,378 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-07-17 08:27:13,378 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-07-17 08:27:13,378 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-07-17 08:27:13,378 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-07-17 08:27:13,379 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-07-17 08:27:13,379 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-07-17 08:27:13,379 INFO L153 SettingsManager]: * sizeof long double=12 [2024-07-17 08:27:13,379 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-07-17 08:27:13,380 INFO L153 SettingsManager]: * Use constant arrays=true [2024-07-17 08:27:13,380 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-07-17 08:27:13,380 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-07-17 08:27:13,381 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-07-17 08:27:13,381 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-07-17 08:27:13,382 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 08:27:13,382 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-07-17 08:27:13,382 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-07-17 08:27:13,382 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-07-17 08:27:13,382 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-07-17 08:27:13,383 INFO L153 SettingsManager]: * DFS Order used in POR=LOOP_LOCKSTEP [2024-07-17 08:27:13,383 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-07-17 08:27:13,383 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-07-17 08:27:13,383 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2024-07-17 08:27:13,383 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2024-07-17 08:27:13,383 INFO L153 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2024-07-17 08:27:13,384 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2024-07-17 08:27:13,384 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> GemCutter Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4d0c5b9355e30d5caa4f24695b56ab4fa8d9d282078ca8b4e24a8f9b8920e450 [2024-07-17 08:27:13,639 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-07-17 08:27:13,661 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-07-17 08:27:13,663 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-07-17 08:27:13,664 INFO L270 PluginConnector]: Initializing CDTParser... [2024-07-17 08:27:13,665 INFO L274 PluginConnector]: CDTParser initialized [2024-07-17 08:27:13,666 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/../../../trunk/examples/svcomp/pthread/fib_safe-10.i [2024-07-17 08:27:14,793 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-07-17 08:27:15,008 INFO L384 CDTParser]: Found 1 translation units. [2024-07-17 08:27:15,009 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-10.i [2024-07-17 08:27:15,020 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6e652c9f2/759a699649e84e5da39eeb54bf90d42c/FLAG6f94a6b6e [2024-07-17 08:27:15,034 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/data/6e652c9f2/759a699649e84e5da39eeb54bf90d42c [2024-07-17 08:27:15,036 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-07-17 08:27:15,036 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-07-17 08:27:15,039 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-07-17 08:27:15,039 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-07-17 08:27:15,043 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-07-17 08:27:15,044 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,045 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60a8770 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15, skipping insertion in model container [2024-07-17 08:27:15,045 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,082 INFO L177 MainTranslator]: Built tables and reachable declarations [2024-07-17 08:27:15,301 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-10.i[30241,30254] [2024-07-17 08:27:15,323 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 08:27:15,338 INFO L202 MainTranslator]: Completed pre-run [2024-07-17 08:27:15,376 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/pthread/fib_safe-10.i[30241,30254] [2024-07-17 08:27:15,384 INFO L207 PostProcessor]: Analyzing one entry point: main [2024-07-17 08:27:15,423 INFO L206 MainTranslator]: Completed translation [2024-07-17 08:27:15,424 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15 WrapperNode [2024-07-17 08:27:15,424 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-07-17 08:27:15,425 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-07-17 08:27:15,426 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-07-17 08:27:15,426 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-07-17 08:27:15,432 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,455 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,476 INFO L138 Inliner]: procedures = 164, calls = 20, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 66 [2024-07-17 08:27:15,476 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-07-17 08:27:15,477 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-07-17 08:27:15,477 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-07-17 08:27:15,477 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-07-17 08:27:15,484 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,485 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,491 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,492 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,506 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,508 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,515 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,516 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,517 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-07-17 08:27:15,522 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-07-17 08:27:15,522 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-07-17 08:27:15,522 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-07-17 08:27:15,523 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (1/1) ... [2024-07-17 08:27:15,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2024-07-17 08:27:15,542 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:27:15,554 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) [2024-07-17 08:27:15,559 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 [2024-07-17 08:27:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure t1 [2024-07-17 08:27:15,589 INFO L138 BoogieDeclarations]: Found implementation of procedure t1 [2024-07-17 08:27:15,589 INFO L130 BoogieDeclarations]: Found specification of procedure t2 [2024-07-17 08:27:15,589 INFO L138 BoogieDeclarations]: Found implementation of procedure t2 [2024-07-17 08:27:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2024-07-17 08:27:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-07-17 08:27:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2024-07-17 08:27:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2024-07-17 08:27:15,590 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-07-17 08:27:15,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-07-17 08:27:15,592 WARN L214 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2024-07-17 08:27:15,724 INFO L244 CfgBuilder]: Building ICFG [2024-07-17 08:27:15,725 INFO L270 CfgBuilder]: Building CFG for each procedure with an implementation [2024-07-17 08:27:15,888 INFO L289 CfgBuilder]: Ommited future-live optimization because the input is a concurrent program. [2024-07-17 08:27:15,888 INFO L293 CfgBuilder]: Performing block encoding [2024-07-17 08:27:15,958 INFO L315 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-07-17 08:27:15,959 INFO L320 CfgBuilder]: Removed 3 assume(true) statements. [2024-07-17 08:27:15,959 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 08:27:15 BoogieIcfgContainer [2024-07-17 08:27:15,959 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-07-17 08:27:15,961 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-07-17 08:27:15,961 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-07-17 08:27:15,963 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-07-17 08:27:15,963 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 08:27:15" (1/3) ... [2024-07-17 08:27:15,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28659c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 08:27:15, skipping insertion in model container [2024-07-17 08:27:15,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 08:27:15" (2/3) ... [2024-07-17 08:27:15,964 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@28659c2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 08:27:15, skipping insertion in model container [2024-07-17 08:27:15,964 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 08:27:15" (3/3) ... [2024-07-17 08:27:15,976 INFO L112 eAbstractionObserver]: Analyzing ICFG fib_safe-10.i [2024-07-17 08:27:15,983 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2024-07-17 08:27:15,990 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-07-17 08:27:15,990 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-07-17 08:27:15,990 INFO L522 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2024-07-17 08:27:16,026 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2024-07-17 08:27:16,064 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 08:27:16,065 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2024-07-17 08:27:16,065 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:27:16,066 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) [2024-07-17 08:27:16,068 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 [2024-07-17 08:27:16,092 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2024-07-17 08:27:16,100 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2024-07-17 08:27:16,105 INFO L357 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, mHoare=true, 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;@1d132070, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-07-17 08:27:16,106 INFO L358 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2024-07-17 08:27:16,201 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:27:16,205 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:27:16,206 INFO L85 PathProgramCache]: Analyzing trace with hash -1703157173, now seen corresponding path program 1 times [2024-07-17 08:27:16,212 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:27:16,212 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1283139265] [2024-07-17 08:27:16,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:27:16,213 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:27:16,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:27:16,451 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:16,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:27:16,452 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1283139265] [2024-07-17 08:27:16,452 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1283139265] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 08:27:16,452 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-07-17 08:27:16,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-07-17 08:27:16,454 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604374694] [2024-07-17 08:27:16,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 08:27:16,459 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-07-17 08:27:16,459 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:27:16,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-07-17 08:27:16,483 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-07-17 08:27:16,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:16,484 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:27:16,485 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 states have internal predecessors, (21), 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) [2024-07-17 08:27:16,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:16,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:16,544 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-07-17 08:27:16,544 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:27:16,544 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:27:16,544 INFO L85 PathProgramCache]: Analyzing trace with hash 311074172, now seen corresponding path program 1 times [2024-07-17 08:27:16,545 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:27:16,545 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1647424152] [2024-07-17 08:27:16,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:27:16,545 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:27:16,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:27:16,702 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:16,702 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:27:16,702 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1647424152] [2024-07-17 08:27:16,703 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1647424152] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:27:16,703 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [320473787] [2024-07-17 08:27:16,703 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:27:16,703 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:27:16,703 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:27:16,745 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) [2024-07-17 08:27:16,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-07-17 08:27:16,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:27:16,809 INFO L262 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 3 conjunts are in the unsatisfiable core [2024-07-17 08:27:16,813 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:27:16,852 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:16,852 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 08:27:16,890 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:16,891 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [320473787] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 08:27:16,892 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 08:27:16,892 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2024-07-17 08:27:16,893 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [616597771] [2024-07-17 08:27:16,893 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 08:27:16,894 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-07-17 08:27:16,894 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:27:16,895 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-07-17 08:27:16,896 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-07-17 08:27:16,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:16,896 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:27:16,897 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 7.285714285714286) internal successors, (51), 7 states have internal predecessors, (51), 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) [2024-07-17 08:27:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:16,897 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:16,969 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:27:16,985 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-07-17 08:27:17,172 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2024-07-17 08:27:17,173 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:27:17,174 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:27:17,174 INFO L85 PathProgramCache]: Analyzing trace with hash 1499777035, now seen corresponding path program 2 times [2024-07-17 08:27:17,174 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:27:17,174 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1598783114] [2024-07-17 08:27:17,174 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:27:17,174 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:27:17,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:27:17,317 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:17,318 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:27:17,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1598783114] [2024-07-17 08:27:17,318 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1598783114] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:27:17,318 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1302863858] [2024-07-17 08:27:17,319 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-17 08:27:17,319 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:27:17,319 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:27:17,320 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) [2024-07-17 08:27:17,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-07-17 08:27:17,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-17 08:27:17,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 08:27:17,405 INFO L262 TraceCheckSpWp]: Trace formula consists of 191 conjuncts, 6 conjunts are in the unsatisfiable core [2024-07-17 08:27:17,408 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:27:17,471 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:17,471 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 08:27:17,543 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 0 proven. 70 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:17,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1302863858] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 08:27:17,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 08:27:17,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 13 [2024-07-17 08:27:17,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [579940860] [2024-07-17 08:27:17,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 08:27:17,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-07-17 08:27:17,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:27:17,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-07-17 08:27:17,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=78, Unknown=0, NotChecked=0, Total=156 [2024-07-17 08:27:17,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:17,553 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:27:17,553 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.153846153846154) internal successors, (93), 13 states have internal predecessors, (93), 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) [2024-07-17 08:27:17,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:17,553 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:27:17,554 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:17,667 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:27:17,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:27:17,695 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-07-17 08:27:17,872 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:27:17,873 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:27:17,873 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:27:17,873 INFO L85 PathProgramCache]: Analyzing trace with hash -1238457173, now seen corresponding path program 3 times [2024-07-17 08:27:17,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:27:17,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266736279] [2024-07-17 08:27:17,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:27:17,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:27:17,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:27:18,171 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 0 proven. 385 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:18,171 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:27:18,171 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266736279] [2024-07-17 08:27:18,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266736279] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:27:18,172 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [642307647] [2024-07-17 08:27:18,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-07-17 08:27:18,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:27:18,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:27:18,173 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) [2024-07-17 08:27:18,198 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-07-17 08:27:18,263 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-07-17 08:27:18,263 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 08:27:18,265 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjunts are in the unsatisfiable core [2024-07-17 08:27:18,268 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:27:18,471 INFO L134 CoverageAnalysis]: Checked inductivity of 385 backedges. 385 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:18,471 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-07-17 08:27:18,472 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [642307647] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 08:27:18,472 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-07-17 08:27:18,472 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 24 [2024-07-17 08:27:18,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603152299] [2024-07-17 08:27:18,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 08:27:18,473 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-07-17 08:27:18,473 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:27:18,475 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-07-17 08:27:18,476 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-07-17 08:27:18,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:18,476 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:27:18,476 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 7.0) internal successors, (91), 13 states have internal predecessors, (91), 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) [2024-07-17 08:27:18,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:18,476 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:27:18,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:27:18,477 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:18,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:18,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:27:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:27:18,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:27:18,660 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-07-17 08:27:18,850 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:27:18,851 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:27:18,851 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:27:18,851 INFO L85 PathProgramCache]: Analyzing trace with hash -1075693685, now seen corresponding path program 1 times [2024-07-17 08:27:18,851 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:27:18,851 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473218018] [2024-07-17 08:27:18,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:27:18,852 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:27:18,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:27:19,054 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 0 proven. 365 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:19,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:27:19,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1473218018] [2024-07-17 08:27:19,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1473218018] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:27:19,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1761895975] [2024-07-17 08:27:19,055 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:27:19,055 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:27:19,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:27:19,060 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) [2024-07-17 08:27:19,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-07-17 08:27:19,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:27:19,162 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjunts are in the unsatisfiable core [2024-07-17 08:27:19,170 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:27:19,335 INFO L134 CoverageAnalysis]: Checked inductivity of 365 backedges. 365 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:19,336 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-07-17 08:27:19,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1761895975] provided 1 perfect and 0 imperfect interpolant sequences [2024-07-17 08:27:19,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-07-17 08:27:19,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [13] total 24 [2024-07-17 08:27:19,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [213467023] [2024-07-17 08:27:19,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-07-17 08:27:19,341 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-07-17 08:27:19,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:27:19,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-07-17 08:27:19,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=397, Unknown=0, NotChecked=0, Total=552 [2024-07-17 08:27:19,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:19,342 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:27:19,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 6.846153846153846) internal successors, (89), 13 states have internal predecessors, (89), 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) [2024-07-17 08:27:19,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:19,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:27:19,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:27:19,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:27:19,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:27:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:27:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:27:19,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:27:19,498 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-07-17 08:27:19,691 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:27:19,691 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:27:19,691 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:27:19,692 INFO L85 PathProgramCache]: Analyzing trace with hash -1976406389, now seen corresponding path program 1 times [2024-07-17 08:27:19,692 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:27:19,692 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352987495] [2024-07-17 08:27:19,692 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:27:19,692 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:27:19,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:27:19,846 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:19,847 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:27:19,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352987495] [2024-07-17 08:27:19,847 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352987495] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:27:19,847 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1362918357] [2024-07-17 08:27:19,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:27:19,847 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:27:19,848 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:27:19,848 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) [2024-07-17 08:27:19,868 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-07-17 08:27:19,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:27:19,934 INFO L262 TraceCheckSpWp]: Trace formula consists of 305 conjuncts, 12 conjunts are in the unsatisfiable core [2024-07-17 08:27:19,936 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:27:20,012 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:20,012 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 08:27:20,195 INFO L134 CoverageAnalysis]: Checked inductivity of 345 backedges. 0 proven. 345 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:20,196 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1362918357] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 08:27:20,196 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 08:27:20,196 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2024-07-17 08:27:20,196 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1986563606] [2024-07-17 08:27:20,196 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 08:27:20,197 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2024-07-17 08:27:20,197 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:27:20,198 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2024-07-17 08:27:20,198 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2024-07-17 08:27:20,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:20,198 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:27:20,198 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 6.76) internal successors, (169), 25 states have internal predecessors, (169), 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) [2024-07-17 08:27:20,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:20,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:27:20,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:27:20,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:27:20,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:27:20,199 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:20,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:20,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:27:20,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:27:20,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:27:20,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:27:20,275 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:27:20,289 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-07-17 08:27:20,486 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:27:20,487 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:27:20,487 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:27:20,487 INFO L85 PathProgramCache]: Analyzing trace with hash -1523370229, now seen corresponding path program 2 times [2024-07-17 08:27:20,488 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:27:20,488 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642189863] [2024-07-17 08:27:20,488 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:27:20,488 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:27:20,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:27:23,562 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:23,563 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:27:23,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642189863] [2024-07-17 08:27:23,563 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [642189863] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:27:23,563 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1721513963] [2024-07-17 08:27:23,563 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-17 08:27:23,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:27:23,563 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:27:23,564 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) [2024-07-17 08:27:23,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-07-17 08:27:23,654 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-17 08:27:23,654 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 08:27:23,656 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjunts are in the unsatisfiable core [2024-07-17 08:27:23,663 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:27:26,947 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 66 proven. 477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:26,947 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 08:27:31,040 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:27:31,041 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1721513963] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 08:27:31,041 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 08:27:31,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 144 [2024-07-17 08:27:31,041 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [228215361] [2024-07-17 08:27:31,041 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 08:27:31,041 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-07-17 08:27:31,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:27:31,043 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-07-17 08:27:31,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1892, Invalid=18988, Unknown=0, NotChecked=0, Total=20880 [2024-07-17 08:27:31,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:27:31,047 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:27:31,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 2.0344827586206895) internal successors, (295), 144 states have internal predecessors, (295), 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) [2024-07-17 08:27:31,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:27:31,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:27:31,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:27:31,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:27:31,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:27:31,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:27:31,048 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:28:07,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:28:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:28:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:28:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:28:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:28:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:28:07,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 161 states. [2024-07-17 08:28:08,006 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-07-17 08:28:08,195 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-07-17 08:28:08,195 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:28:08,196 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:28:08,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1810739531, now seen corresponding path program 3 times [2024-07-17 08:28:08,196 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:28:08,196 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765711652] [2024-07-17 08:28:08,196 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:28:08,196 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:28:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:28:10,510 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:28:10,510 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:28:10,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [765711652] [2024-07-17 08:28:10,510 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [765711652] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:28:10,510 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [948208632] [2024-07-17 08:28:10,511 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-07-17 08:28:10,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:28:10,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:28:10,512 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 08:28:10,512 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-07-17 08:28:10,622 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2024-07-17 08:28:10,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 08:28:10,626 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjunts are in the unsatisfiable core [2024-07-17 08:28:10,628 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:28:13,686 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 55 proven. 488 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:28:13,687 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 08:28:17,459 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:28:17,459 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [948208632] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 08:28:17,459 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 08:28:17,459 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 144 [2024-07-17 08:28:17,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1595372781] [2024-07-17 08:28:17,460 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 08:28:17,460 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-07-17 08:28:17,460 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:28:17,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-07-17 08:28:17,467 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1833, Invalid=19047, Unknown=0, NotChecked=0, Total=20880 [2024-07-17 08:28:17,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:28:17,467 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:28:17,467 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 2.0344827586206895) internal successors, (295), 144 states have internal predecessors, (295), 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) [2024-07-17 08:28:17,467 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:28:17,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:28:17,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:28:17,468 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:28:17,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:28:17,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:28:17,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 161 states. [2024-07-17 08:28:17,469 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:29:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:29:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:29:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:29:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:29:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:29:33,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:29:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 219 states. [2024-07-17 08:29:33,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 154 states. [2024-07-17 08:29:33,062 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-07-17 08:29:33,251 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,9 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:29:33,251 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:29:33,252 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:29:33,252 INFO L85 PathProgramCache]: Analyzing trace with hash 1846341387, now seen corresponding path program 4 times [2024-07-17 08:29:33,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:29:33,252 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [887402772] [2024-07-17 08:29:33,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:29:33,252 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:29:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:29:35,289 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:29:35,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:29:35,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [887402772] [2024-07-17 08:29:35,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [887402772] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:29:35,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [836770235] [2024-07-17 08:29:35,292 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-07-17 08:29:35,292 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:29:35,292 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:29:35,293 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 08:29:35,293 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-07-17 08:29:35,387 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-07-17 08:29:35,387 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 08:29:35,389 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjunts are in the unsatisfiable core [2024-07-17 08:29:35,391 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:29:38,366 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 66 proven. 477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:29:38,366 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 08:29:42,136 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:29:42,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [836770235] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 08:29:42,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 08:29:42,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 144 [2024-07-17 08:29:42,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [693346835] [2024-07-17 08:29:42,137 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 08:29:42,137 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-07-17 08:29:42,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:29:42,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-07-17 08:29:42,142 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1862, Invalid=19018, Unknown=0, NotChecked=0, Total=20880 [2024-07-17 08:29:42,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:29:42,142 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:29:42,143 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 2.0344827586206895) internal successors, (295), 144 states have internal predecessors, (295), 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) [2024-07-17 08:29:42,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:29:42,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:29:42,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:29:42,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:29:42,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:29:42,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:29:42,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 219 states. [2024-07-17 08:29:42,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 154 states. [2024-07-17 08:29:42,143 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:30:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:30:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:30:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:30:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:30:42,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:30:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:30:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 241 states. [2024-07-17 08:30:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 157 states. [2024-07-17 08:30:42,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 207 states. [2024-07-17 08:30:42,771 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-07-17 08:30:42,965 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,10 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:30:42,966 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:30:42,966 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:30:42,966 INFO L85 PathProgramCache]: Analyzing trace with hash -924969589, now seen corresponding path program 5 times [2024-07-17 08:30:42,966 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:30:42,966 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1947258248] [2024-07-17 08:30:42,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:30:42,966 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:30:43,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:30:44,909 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:30:44,910 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:30:44,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1947258248] [2024-07-17 08:30:44,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1947258248] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:30:44,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356070498] [2024-07-17 08:30:44,910 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-07-17 08:30:44,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:30:44,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:30:44,911 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 08:30:44,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-07-17 08:30:45,006 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-07-17 08:30:45,007 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 08:30:45,010 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjunts are in the unsatisfiable core [2024-07-17 08:30:45,012 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:30:47,940 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 55 proven. 488 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:30:47,940 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 08:30:51,642 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:30:51,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356070498] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 08:30:51,643 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 08:30:51,643 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 144 [2024-07-17 08:30:51,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [915860273] [2024-07-17 08:30:51,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 08:30:51,643 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-07-17 08:30:51,643 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:30:51,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-07-17 08:30:51,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1892, Invalid=18988, Unknown=0, NotChecked=0, Total=20880 [2024-07-17 08:30:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:30:51,646 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:30:51,646 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 2.0344827586206895) internal successors, (295), 144 states have internal predecessors, (295), 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) [2024-07-17 08:30:51,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:30:51,646 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:30:51,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:30:51,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:30:51,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:30:51,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:30:51,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 241 states. [2024-07-17 08:30:51,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 157 states. [2024-07-17 08:30:51,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 207 states. [2024-07-17 08:30:51,647 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:32:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:32:55,309 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:32:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:32:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:32:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:32:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:32:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 290 states. [2024-07-17 08:32:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 210 states. [2024-07-17 08:32:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 262 states. [2024-07-17 08:32:55,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 174 states. [2024-07-17 08:32:55,322 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-07-17 08:32:55,510 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-07-17 08:32:55,511 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:32:55,511 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:32:55,512 INFO L85 PathProgramCache]: Analyzing trace with hash 128904641, now seen corresponding path program 6 times [2024-07-17 08:32:55,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:32:55,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [753567131] [2024-07-17 08:32:55,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:32:55,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:32:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:32:57,405 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:32:57,406 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:32:57,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [753567131] [2024-07-17 08:32:57,406 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [753567131] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:32:57,406 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1559208557] [2024-07-17 08:32:57,406 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-07-17 08:32:57,406 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:32:57,406 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:32:57,407 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 08:32:57,408 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-07-17 08:32:57,508 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-07-17 08:32:57,508 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 08:32:57,511 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjunts are in the unsatisfiable core [2024-07-17 08:32:57,513 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:33:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 55 proven. 488 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:33:00,510 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 08:33:04,223 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:33:04,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1559208557] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 08:33:04,224 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 08:33:04,224 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 144 [2024-07-17 08:33:04,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [202555400] [2024-07-17 08:33:04,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 08:33:04,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-07-17 08:33:04,224 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:33:04,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-07-17 08:33:04,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1845, Invalid=19035, Unknown=0, NotChecked=0, Total=20880 [2024-07-17 08:33:04,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:33:04,227 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:33:04,228 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 2.0344827586206895) internal successors, (295), 144 states have internal predecessors, (295), 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) [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 290 states. [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 210 states. [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 262 states. [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 174 states. [2024-07-17 08:33:04,228 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:37:25,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:37:25,799 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:37:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:37:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:37:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:37:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:37:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 357 states. [2024-07-17 08:37:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 314 states. [2024-07-17 08:37:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 380 states. [2024-07-17 08:37:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 272 states. [2024-07-17 08:37:25,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 275 states. [2024-07-17 08:37:25,811 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-07-17 08:37:26,000 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,12 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:37:26,001 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:37:26,001 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:37:26,001 INFO L85 PathProgramCache]: Analyzing trace with hash -42492021, now seen corresponding path program 7 times [2024-07-17 08:37:26,001 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:37:26,001 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1843669705] [2024-07-17 08:37:26,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:37:26,001 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:37:26,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:37:27,926 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:37:27,926 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:37:27,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1843669705] [2024-07-17 08:37:27,926 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1843669705] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:37:27,926 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386840052] [2024-07-17 08:37:27,926 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-07-17 08:37:27,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:37:27,926 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:37:27,927 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 08:37:27,928 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-07-17 08:37:28,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:37:28,024 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjunts are in the unsatisfiable core [2024-07-17 08:37:28,026 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:37:30,869 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 66 proven. 477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:37:30,869 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 08:37:34,628 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:37:34,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386840052] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 08:37:34,628 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 08:37:34,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 144 [2024-07-17 08:37:34,629 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1695657568] [2024-07-17 08:37:34,629 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 08:37:34,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-07-17 08:37:34,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:37:34,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-07-17 08:37:34,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1912, Invalid=18968, Unknown=0, NotChecked=0, Total=20880 [2024-07-17 08:37:34,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:37:34,632 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:37:34,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 2.0344827586206895) internal successors, (295), 144 states have internal predecessors, (295), 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) [2024-07-17 08:37:34,632 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 357 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 314 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 380 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 272 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 275 states. [2024-07-17 08:37:34,633 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:39:30,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:39:30,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:39:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:39:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:39:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:39:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:39:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 370 states. [2024-07-17 08:39:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 357 states. [2024-07-17 08:39:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 385 states. [2024-07-17 08:39:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 275 states. [2024-07-17 08:39:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 275 states. [2024-07-17 08:39:30,653 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 308 states. [2024-07-17 08:39:30,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-07-17 08:39:30,854 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-07-17 08:39:30,855 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES, ULTIMATE.startErr1INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES] === [2024-07-17 08:39:30,855 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-07-17 08:39:30,855 INFO L85 PathProgramCache]: Analyzing trace with hash -1099268341, now seen corresponding path program 8 times [2024-07-17 08:39:30,855 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-07-17 08:39:30,855 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [908958090] [2024-07-17 08:39:30,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-07-17 08:39:30,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-07-17 08:39:30,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-07-17 08:39:32,722 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:39:32,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-07-17 08:39:32,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [908958090] [2024-07-17 08:39:32,723 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [908958090] provided 0 perfect and 1 imperfect interpolant sequences [2024-07-17 08:39:32,723 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [748867204] [2024-07-17 08:39:32,723 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-07-17 08:39:32,723 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-07-17 08:39:32,723 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 [2024-07-17 08:39:32,724 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-07-17 08:39:32,730 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UGemCutter-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-07-17 08:39:32,832 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-07-17 08:39:32,832 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-07-17 08:39:32,834 INFO L262 TraceCheckSpWp]: Trace formula consists of 413 conjuncts, 97 conjunts are in the unsatisfiable core [2024-07-17 08:39:32,837 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-07-17 08:39:35,660 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 66 proven. 477 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:39:35,660 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-07-17 08:39:39,365 INFO L134 CoverageAnalysis]: Checked inductivity of 543 backedges. 0 proven. 543 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-07-17 08:39:39,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [748867204] provided 0 perfect and 2 imperfect interpolant sequences [2024-07-17 08:39:39,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-07-17 08:39:39,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 144 [2024-07-17 08:39:39,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [84313150] [2024-07-17 08:39:39,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-07-17 08:39:39,366 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 145 states [2024-07-17 08:39:39,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-07-17 08:39:39,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 145 interpolants. [2024-07-17 08:39:39,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1881, Invalid=18999, Unknown=0, NotChecked=0, Total=20880 [2024-07-17 08:39:39,369 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-07-17 08:39:39,369 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2024-07-17 08:39:39,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 145 states, 145 states have (on average 2.0344827586206895) internal successors, (295), 144 states have internal predecessors, (295), 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) [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 12 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 24 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 370 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 357 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 385 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 275 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 275 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 308 states. [2024-07-17 08:39:39,369 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Killed by 15