/usr/bin/java -Xmx7000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --traceabstraction.prune.known.deadend.states.from.previous.iterations false -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf --traceabstraction.cegar.restart.behaviour ONE_CEGAR_PER_ERROR_LOCATION -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 10:14:06,133 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 10:14:06,184 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-07 10:14:06,188 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 10:14:06,188 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 10:14:06,189 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 10:14:06,207 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 10:14:06,207 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 10:14:06,207 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 10:14:06,208 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 10:14:06,208 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 10:14:06,211 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 10:14:06,211 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 10:14:06,211 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 10:14:06,212 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 10:14:06,212 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 10:14:06,212 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 10:14:06,213 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 10:14:06,213 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 10:14:06,213 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 10:14:06,214 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 10:14:06,217 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 10:14:06,217 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 10:14:06,217 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 10:14:06,218 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 10:14:06,218 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 10:14:06,218 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 10:14:06,218 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 10:14:06,219 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 10:14:06,219 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 10:14:06,219 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 10:14:06,219 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 10:14:06,220 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 10:14:06,220 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 10:14:06,220 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 10:14:06,220 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 10:14:06,221 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 10:14:06,221 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 10:14:06,221 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 10:14:06,221 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-07 10:14:06,221 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/UAutomizer-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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION [2023-09-07 10:14:06,447 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 10:14:06,472 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 10:14:06,474 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 10:14:06,475 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 10:14:06,475 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 10:14:06,476 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c [2023-09-07 10:14:07,589 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 10:14:07,782 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 10:14:07,782 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c [2023-09-07 10:14:07,790 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68695a9d3/6150a5f3706c430795c80b0bbcb19ea4/FLAGede2cfe1b [2023-09-07 10:14:07,803 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/68695a9d3/6150a5f3706c430795c80b0bbcb19ea4 [2023-09-07 10:14:07,805 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 10:14:07,807 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 10:14:07,808 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 10:14:07,808 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 10:14:07,812 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 10:14:07,813 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:14:07" (1/1) ... [2023-09-07 10:14:07,813 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e710c82 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:07, skipping insertion in model container [2023-09-07 10:14:07,814 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 10:14:07" (1/1) ... [2023-09-07 10:14:07,848 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 10:14:08,015 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c[5846,5859] [2023-09-07 10:14:08,023 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 10:14:08,034 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 10:14:08,061 WARN L240 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-commit-2.wvr.c[5846,5859] [2023-09-07 10:14:08,064 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 10:14:08,071 WARN L669 CHandler]: The function __VERIFIER_atomic_begin is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 10:14:08,072 WARN L669 CHandler]: The function __VERIFIER_atomic_end is called, but not defined or handled by StandardFunctionHandler. [2023-09-07 10:14:08,078 INFO L206 MainTranslator]: Completed translation [2023-09-07 10:14:08,078 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08 WrapperNode [2023-09-07 10:14:08,078 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 10:14:08,079 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 10:14:08,079 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 10:14:08,079 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 10:14:08,086 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,095 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,128 INFO L138 Inliner]: procedures = 26, calls = 93, calls flagged for inlining = 27, calls inlined = 33, statements flattened = 478 [2023-09-07 10:14:08,129 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 10:14:08,129 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 10:14:08,129 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 10:14:08,130 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 10:14:08,137 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,138 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,142 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,142 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,153 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,158 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,161 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,163 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,166 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 10:14:08,167 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 10:14:08,167 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 10:14:08,167 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 10:14:08,168 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (1/1) ... [2023-09-07 10:14:08,185 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 10:14:08,196 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:14:08,227 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-09-07 10:14:08,249 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-09-07 10:14:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 10:14:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 10:14:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 10:14:08,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 10:14:08,265 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 10:14:08,265 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 10:14:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 10:14:08,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 10:14:08,266 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-07 10:14:08,266 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-07 10:14:08,267 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2023-09-07 10:14:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2023-09-07 10:14:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 10:14:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2023-09-07 10:14:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2023-09-07 10:14:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 10:14:08,268 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 10:14:08,268 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 10:14:08,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 10:14:08,270 WARN L210 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to OneNontrivialStatement [2023-09-07 10:14:08,386 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 10:14:08,388 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 10:14:08,926 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 10:14:09,195 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 10:14:09,195 INFO L302 CfgBuilder]: Removed 8 assume(true) statements. [2023-09-07 10:14:09,198 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:14:09 BoogieIcfgContainer [2023-09-07 10:14:09,198 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 10:14:09,201 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 10:14:09,202 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 10:14:09,204 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 10:14:09,205 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 10:14:07" (1/3) ... [2023-09-07 10:14:09,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560e6f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:14:09, skipping insertion in model container [2023-09-07 10:14:09,206 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 10:14:08" (2/3) ... [2023-09-07 10:14:09,206 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@560e6f45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 10:14:09, skipping insertion in model container [2023-09-07 10:14:09,207 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 10:14:09" (3/3) ... [2023-09-07 10:14:09,208 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-commit-2.wvr.c [2023-09-07 10:14:09,215 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 10:14:09,223 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 10:14:09,224 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 10:14:09,224 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 10:14:09,332 INFO L144 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2023-09-07 10:14:09,384 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 10:14:09,384 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 10:14:09,385 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:14:09,391 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2023-09-07 10:14:09,416 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2023-09-07 10:14:09,431 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 10:14:09,437 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 10:14:09,444 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=LoopsAndPotentialCycles, 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;@7f9c427a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 10:14:09,444 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 10:14:09,536 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:09,540 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:09,541 INFO L85 PathProgramCache]: Analyzing trace with hash 1767680404, now seen corresponding path program 1 times [2023-09-07 10:14:09,548 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:09,548 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723707660] [2023-09-07 10:14:09,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:09,548 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:09,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:09,918 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:14:09,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:09,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723707660] [2023-09-07 10:14:09,920 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723707660] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:09,920 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:09,920 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 10:14:09,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1689762834] [2023-09-07 10:14:09,922 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:09,930 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 10:14:09,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:09,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 10:14:09,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 10:14:09,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:09,959 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:09,960 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 120.0) internal successors, (240), 2 states have internal predecessors, (240), 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) [2023-09-07 10:14:09,960 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:10,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:10,031 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 10:14:10,032 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:10,032 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:10,033 INFO L85 PathProgramCache]: Analyzing trace with hash 52591955, now seen corresponding path program 1 times [2023-09-07 10:14:10,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:10,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1903100116] [2023-09-07 10:14:10,033 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:10,033 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:10,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:10,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:14:10,806 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:10,806 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1903100116] [2023-09-07 10:14:10,806 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1903100116] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:10,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:10,807 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 10:14:10,807 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1282838906] [2023-09-07 10:14:10,807 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:10,809 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 10:14:10,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:10,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 10:14:10,813 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2023-09-07 10:14:10,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:10,813 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:10,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 46.2) internal successors, (231), 5 states have internal predecessors, (231), 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) [2023-09-07 10:14:10,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:10,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:10,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:10,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:10,949 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 10:14:10,949 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:10,949 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:10,950 INFO L85 PathProgramCache]: Analyzing trace with hash 40512553, now seen corresponding path program 1 times [2023-09-07 10:14:10,950 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:10,950 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1453019157] [2023-09-07 10:14:10,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:10,950 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:11,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:11,293 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:14:11,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:11,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1453019157] [2023-09-07 10:14:11,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1453019157] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:11,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:11,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-07 10:14:11,296 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193413682] [2023-09-07 10:14:11,296 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:11,297 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-07 10:14:11,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:11,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-07 10:14:11,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-07 10:14:11,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:11,298 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:11,298 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 39.333333333333336) internal successors, (236), 6 states have internal predecessors, (236), 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) [2023-09-07 10:14:11,298 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:11,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:11,299 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:11,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:11,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:11,442 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-09-07 10:14:11,442 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:11,442 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:11,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1206623801, now seen corresponding path program 1 times [2023-09-07 10:14:11,443 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:11,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1736884845] [2023-09-07 10:14:11,444 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:11,444 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:11,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:11,927 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 10:14:11,927 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:11,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1736884845] [2023-09-07 10:14:11,931 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1736884845] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:11,931 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:11,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-07 10:14:11,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [58621698] [2023-09-07 10:14:11,932 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:11,932 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-07 10:14:11,933 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:11,934 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-07 10:14:11,934 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-07 10:14:11,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:11,935 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:11,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 61.0) internal successors, (244), 4 states have internal predecessors, (244), 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) [2023-09-07 10:14:11,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:11,938 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:11,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:11,943 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:12,014 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:12,015 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2023-09-07 10:14:12,015 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:12,016 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:12,016 INFO L85 PathProgramCache]: Analyzing trace with hash 1638227763, now seen corresponding path program 1 times [2023-09-07 10:14:12,016 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:12,016 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [667587817] [2023-09-07 10:14:12,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:12,016 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:12,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 10:14:12,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:12,330 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [667587817] [2023-09-07 10:14:12,331 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [667587817] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:12,331 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:12,331 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-07 10:14:12,331 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067844751] [2023-09-07 10:14:12,331 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:12,331 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 10:14:12,332 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:12,333 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 10:14:12,333 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-07 10:14:12,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:12,333 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:12,333 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-09-07 10:14:12,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:12,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:12,333 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:12,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:12,334 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:12,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:12,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:12,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:12,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:12,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:12,483 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2023-09-07 10:14:12,483 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:12,483 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:12,483 INFO L85 PathProgramCache]: Analyzing trace with hash -1961158603, now seen corresponding path program 1 times [2023-09-07 10:14:12,484 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:12,484 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1162765154] [2023-09-07 10:14:12,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:12,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:12,779 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 10:14:12,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:12,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1162765154] [2023-09-07 10:14:12,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1162765154] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:12,780 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:12,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-07 10:14:12,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [576471602] [2023-09-07 10:14:12,780 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:12,781 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 10:14:12,781 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:12,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 10:14:12,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-07 10:14:12,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:12,782 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:12,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 81.33333333333333) internal successors, (244), 3 states have internal predecessors, (244), 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) [2023-09-07 10:14:12,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:12,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:12,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:12,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:12,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:12,782 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:13,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:13,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:13,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2023-09-07 10:14:13,302 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:13,302 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:13,302 INFO L85 PathProgramCache]: Analyzing trace with hash 1124264573, now seen corresponding path program 1 times [2023-09-07 10:14:13,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:13,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850022648] [2023-09-07 10:14:13,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:13,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:13,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:13,544 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2023-09-07 10:14:13,544 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:13,544 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850022648] [2023-09-07 10:14:13,544 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850022648] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:13,545 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:13,545 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-07 10:14:13,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [145994914] [2023-09-07 10:14:13,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:13,546 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-07 10:14:13,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:13,546 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-07 10:14:13,546 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-07 10:14:13,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:13,547 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:13,547 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 41.333333333333336) internal successors, (248), 6 states have internal predecessors, (248), 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) [2023-09-07 10:14:13,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:13,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:13,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:13,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:13,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:13,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:13,548 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:13,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:13,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:13,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:13,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:13,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:13,889 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:13,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:13,890 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2023-09-07 10:14:13,890 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:13,890 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:13,891 INFO L85 PathProgramCache]: Analyzing trace with hash 654632117, now seen corresponding path program 1 times [2023-09-07 10:14:13,891 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:13,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [940782635] [2023-09-07 10:14:13,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:13,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:13,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:14,191 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 10:14:14,194 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:14,194 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [940782635] [2023-09-07 10:14:14,194 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [940782635] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:14,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:14,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-07 10:14:14,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1635418803] [2023-09-07 10:14:14,195 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:14,196 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-07 10:14:14,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:14,197 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-07 10:14:14,197 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-07 10:14:14,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:14,197 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:14,197 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 42.666666666666664) internal successors, (256), 6 states have internal predecessors, (256), 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) [2023-09-07 10:14:14,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:14,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:14,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:14,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:14,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:14,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:14,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:14,198 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:14,563 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:14,564 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:14,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2023-09-07 10:14:14,564 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:14,564 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:14,564 INFO L85 PathProgramCache]: Analyzing trace with hash 337460301, now seen corresponding path program 1 times [2023-09-07 10:14:14,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:14,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2012392585] [2023-09-07 10:14:14,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:14,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:14,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:14,811 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 10:14:14,812 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:14,812 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2012392585] [2023-09-07 10:14:14,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2012392585] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:14,812 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:14,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-09-07 10:14:14,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [930268549] [2023-09-07 10:14:14,812 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:14,813 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-09-07 10:14:14,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:14,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-09-07 10:14:14,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2023-09-07 10:14:14,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:14,814 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:14,814 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 44.0) internal successors, (264), 6 states have internal predecessors, (264), 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) [2023-09-07 10:14:14,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:14,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:14,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:14,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:14,814 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:14,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:14,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:14,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:14,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:15,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:15,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:15,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2023-09-07 10:14:15,146 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:15,146 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:15,147 INFO L85 PathProgramCache]: Analyzing trace with hash 76574770, now seen corresponding path program 1 times [2023-09-07 10:14:15,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:15,148 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [75818591] [2023-09-07 10:14:15,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:15,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:15,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:15,599 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 10:14:15,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:15,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [75818591] [2023-09-07 10:14:15,601 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [75818591] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:15,601 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:15,601 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-09-07 10:14:15,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [815456138] [2023-09-07 10:14:15,601 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:15,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-09-07 10:14:15,602 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:15,603 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-09-07 10:14:15,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-09-07 10:14:15,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:15,603 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:15,604 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 90.66666666666667) internal successors, (272), 3 states have internal predecessors, (272), 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) [2023-09-07 10:14:15,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:15,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:15,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:15,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:15,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:15,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:15,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:15,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:15,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:15,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:15,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:15,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:15,918 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2023-09-07 10:14:15,918 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:15,918 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:15,918 INFO L85 PathProgramCache]: Analyzing trace with hash 960065654, now seen corresponding path program 1 times [2023-09-07 10:14:15,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:15,919 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [895799972] [2023-09-07 10:14:15,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:15,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:16,368 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 10:14:16,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:16,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [895799972] [2023-09-07 10:14:16,368 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [895799972] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:16,368 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:16,368 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2023-09-07 10:14:16,368 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [530306961] [2023-09-07 10:14:16,369 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:16,369 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-09-07 10:14:16,369 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:16,370 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-09-07 10:14:16,370 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-07 10:14:16,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:16,370 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:16,370 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 55.4) internal successors, (277), 5 states have internal predecessors, (277), 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) [2023-09-07 10:14:16,370 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:16,371 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:16,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:16,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:16,751 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2023-09-07 10:14:16,751 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:16,751 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:16,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1967599390, now seen corresponding path program 1 times [2023-09-07 10:14:16,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:16,752 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [466369023] [2023-09-07 10:14:16,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:16,752 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:16,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:17,327 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 8 proven. 6 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 10:14:17,327 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:17,327 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [466369023] [2023-09-07 10:14:17,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [466369023] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:14:17,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029861548] [2023-09-07 10:14:17,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:17,328 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:14:17,328 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:14:17,371 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 10:14:17,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-09-07 10:14:17,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:17,598 INFO L262 TraceCheckSpWp]: Trace formula consists of 733 conjuncts, 9 conjunts are in the unsatisfiable core [2023-09-07 10:14:17,608 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:14:17,950 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-09-07 10:14:17,950 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:14:18,337 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 11 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-09-07 10:14:18,337 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029861548] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 10:14:18,337 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 10:14:18,337 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 19 [2023-09-07 10:14:18,338 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1312746346] [2023-09-07 10:14:18,338 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 10:14:18,339 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2023-09-07 10:14:18,339 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:18,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2023-09-07 10:14:18,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=265, Unknown=0, NotChecked=0, Total=342 [2023-09-07 10:14:18,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:18,342 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:18,342 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 17.894736842105264) internal successors, (340), 19 states have internal predecessors, (340), 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) [2023-09-07 10:14:18,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:18,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:18,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:18,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:18,342 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:18,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:18,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:18,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:18,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:18,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:18,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:18,343 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:18,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:18,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 10:14:18,966 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-09-07 10:14:19,166 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2023-09-07 10:14:19,167 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:19,167 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:19,167 INFO L85 PathProgramCache]: Analyzing trace with hash 1551090308, now seen corresponding path program 2 times [2023-09-07 10:14:19,167 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:19,167 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1623444110] [2023-09-07 10:14:19,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:19,168 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:19,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:19,613 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 10 proven. 13 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 10:14:19,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:19,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1623444110] [2023-09-07 10:14:19,613 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1623444110] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:14:19,613 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [72312098] [2023-09-07 10:14:19,614 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-09-07 10:14:19,614 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:14:19,614 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:14:19,615 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 10:14:19,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-09-07 10:14:19,866 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-09-07 10:14:19,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 10:14:19,870 INFO L262 TraceCheckSpWp]: Trace formula consists of 747 conjuncts, 11 conjunts are in the unsatisfiable core [2023-09-07 10:14:19,875 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:14:20,196 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-09-07 10:14:20,196 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:14:20,521 INFO L134 CoverageAnalysis]: Checked inductivity of 26 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2023-09-07 10:14:20,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [72312098] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 10:14:20,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 10:14:20,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8, 8] total 23 [2023-09-07 10:14:20,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392742043] [2023-09-07 10:14:20,522 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 10:14:20,522 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2023-09-07 10:14:20,523 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:20,524 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2023-09-07 10:14:20,525 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=437, Unknown=0, NotChecked=0, Total=506 [2023-09-07 10:14:20,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:20,525 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:20,525 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 23.73913043478261) internal successors, (546), 23 states have internal predecessors, (546), 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) [2023-09-07 10:14:20,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:20,525 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 10:14:20,526 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:21,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:21,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:21,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:21,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 10:14:21,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 10:14:21,555 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-09-07 10:14:21,752 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:14:21,753 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:21,753 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:21,753 INFO L85 PathProgramCache]: Analyzing trace with hash 773711086, now seen corresponding path program 3 times [2023-09-07 10:14:21,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:21,753 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1297468405] [2023-09-07 10:14:21,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:21,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:21,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:22,399 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-09-07 10:14:22,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:22,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1297468405] [2023-09-07 10:14:22,400 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1297468405] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:14:22,400 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1952146818] [2023-09-07 10:14:22,400 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-09-07 10:14:22,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:14:22,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:14:22,401 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 10:14:22,427 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-09-07 10:14:22,708 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-09-07 10:14:22,708 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-09-07 10:14:22,712 INFO L262 TraceCheckSpWp]: Trace formula consists of 761 conjuncts, 14 conjunts are in the unsatisfiable core [2023-09-07 10:14:22,717 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:14:23,110 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 10 proven. 4 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-09-07 10:14:23,110 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:14:23,814 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 9 proven. 5 refuted. 0 times theorem prover too weak. 38 trivial. 0 not checked. [2023-09-07 10:14:23,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1952146818] provided 0 perfect and 2 imperfect interpolant sequences [2023-09-07 10:14:23,815 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-09-07 10:14:23,815 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 28 [2023-09-07 10:14:23,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1241192516] [2023-09-07 10:14:23,817 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-09-07 10:14:23,818 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2023-09-07 10:14:23,818 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:23,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2023-09-07 10:14:23,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=159, Invalid=597, Unknown=0, NotChecked=0, Total=756 [2023-09-07 10:14:23,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:23,819 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:23,821 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 16.785714285714285) internal successors, (470), 28 states have internal predecessors, (470), 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) [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-09-07 10:14:23,821 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:24,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:24,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:24,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:24,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:24,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:24,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:24,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:24,619 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:24,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:24,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:24,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:24,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 10:14:24,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 10:14:24,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 10:14:24,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-09-07 10:14:24,827 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:14:24,827 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:24,828 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:24,828 INFO L85 PathProgramCache]: Analyzing trace with hash 1074221929, now seen corresponding path program 4 times [2023-09-07 10:14:24,828 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:24,828 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588125291] [2023-09-07 10:14:24,828 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:24,828 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:25,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:25,218 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-09-07 10:14:25,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:25,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588125291] [2023-09-07 10:14:25,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588125291] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:25,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 10:14:25,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-09-07 10:14:25,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110994071] [2023-09-07 10:14:25,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:25,220 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-07 10:14:25,220 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:25,221 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-07 10:14:25,221 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2023-09-07 10:14:25,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:25,221 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:25,221 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2023-09-07 10:14:25,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:25,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:25,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:25,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:25,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:25,221 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:25,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:25,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:25,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:25,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:25,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:25,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 10:14:25,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-09-07 10:14:25,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 10:14:25,222 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:25,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 10:14:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 10:14:25,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 10:14:25,599 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:25,599 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2023-09-07 10:14:25,599 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:25,599 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:25,599 INFO L85 PathProgramCache]: Analyzing trace with hash 1099241115, now seen corresponding path program 1 times [2023-09-07 10:14:25,600 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:25,600 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1248264838] [2023-09-07 10:14:25,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:25,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:25,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:25,990 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 9 proven. 4 refuted. 0 times theorem prover too weak. 48 trivial. 0 not checked. [2023-09-07 10:14:25,991 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:25,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1248264838] [2023-09-07 10:14:25,991 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1248264838] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:14:25,991 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [207054715] [2023-09-07 10:14:25,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:25,991 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:14:25,991 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:14:25,993 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 10:14:25,996 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-09-07 10:14:26,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:26,222 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 8 conjunts are in the unsatisfiable core [2023-09-07 10:14:26,226 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:14:26,384 INFO L134 CoverageAnalysis]: Checked inductivity of 61 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 51 trivial. 0 not checked. [2023-09-07 10:14:26,384 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-09-07 10:14:26,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [207054715] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 10:14:26,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2023-09-07 10:14:26,385 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 5 [2023-09-07 10:14:26,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1244385385] [2023-09-07 10:14:26,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 10:14:26,385 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2023-09-07 10:14:26,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 10:14:26,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2023-09-07 10:14:26,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2023-09-07 10:14:26,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:26,386 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 10:14:26,387 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.0) internal successors, (284), 4 states have internal predecessors, (284), 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) [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2023-09-07 10:14:26,387 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2023-09-07 10:14:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2023-09-07 10:14:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:26,388 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-09-07 10:14:26,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2023-09-07 10:14:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-09-07 10:14:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-09-07 10:14:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-09-07 10:14:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:26,633 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2023-09-07 10:14:26,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2023-09-07 10:14:26,840 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2023-09-07 10:14:26,840 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 10:14:26,840 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 10:14:26,840 INFO L85 PathProgramCache]: Analyzing trace with hash 351654707, now seen corresponding path program 1 times [2023-09-07 10:14:26,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 10:14:26,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793926057] [2023-09-07 10:14:26,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:26,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 10:14:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:46,060 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:14:46,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 10:14:46,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793926057] [2023-09-07 10:14:46,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793926057] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 10:14:46,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [711311802] [2023-09-07 10:14:46,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 10:14:46,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 10:14:46,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 10:14:46,069 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-09-07 10:14:46,071 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-09-07 10:14:46,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 10:14:46,357 INFO L262 TraceCheckSpWp]: Trace formula consists of 789 conjuncts, 173 conjunts are in the unsatisfiable core [2023-09-07 10:14:46,375 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 10:14:51,024 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-09-07 10:14:51,690 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 11 [2023-09-07 10:14:53,657 INFO L322 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-09-07 10:14:53,658 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 11 treesize of output 11 [2023-09-07 10:14:54,316 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-09-07 10:14:54,890 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-09-07 10:14:56,098 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-09-07 10:14:56,365 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-09-07 10:14:56,608 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-09-07 10:14:56,819 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2023-09-07 10:15:00,071 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-09-07 10:15:00,071 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 10:15:51,278 WARN L234 SmtUtils]: Spent 45.72s on a formula simplification. DAG size of input: 132 DAG size of output: 131 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:16:22,934 WARN L234 SmtUtils]: Spent 10.78s on a formula simplification that was a NOOP. DAG size: 147 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:16:41,197 WARN L234 SmtUtils]: Spent 9.57s on a formula simplification that was a NOOP. DAG size: 150 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:17:15,252 WARN L234 SmtUtils]: Spent 12.91s on a formula simplification that was a NOOP. DAG size: 150 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:17:44,970 WARN L234 SmtUtils]: Spent 14.12s on a formula simplification that was a NOOP. DAG size: 150 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:18:41,948 WARN L234 SmtUtils]: Spent 5.72s on a formula simplification that was a NOOP. DAG size: 154 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:19:55,524 WARN L234 SmtUtils]: Spent 7.58s on a formula simplification that was a NOOP. DAG size: 157 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:21:38,264 WARN L234 SmtUtils]: Spent 5.74s on a formula simplification that was a NOOP. DAG size: 155 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:24:29,173 WARN L234 SmtUtils]: Spent 18.52s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:25:23,579 WARN L234 SmtUtils]: Spent 18.23s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:26:21,836 WARN L234 SmtUtils]: Spent 18.20s on a formula simplification that was a NOOP. DAG size: 166 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:27:22,644 WARN L234 SmtUtils]: Spent 18.22s on a formula simplification that was a NOOP. DAG size: 194 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-09-07 10:27:30,075 WARN L249 Executor]: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) stderr output: (error "out of memory") [2023-09-07 10:27:30,076 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 101 [2023-09-07 10:27:30,076 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2023-09-07 10:27:30,083 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-09-07 10:27:30,277 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2023-09-07 10:27:30,278 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:281) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.checkSat(WrapperScript.java:163) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.ManagedScript.checkSat(ManagedScript.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:85) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:935) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:774) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:362) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:311) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:579) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:341) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:184) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:101) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getInterpolantComputationStatus(IpTcStrategyModuleBase.java:77) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.tryExecuteInterpolantGenerator(AutomatonFreeRefinementEngine.java:267) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.generateProof(AutomatonFreeRefinementEngine.java:148) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:137) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:85) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:82) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:337) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:431) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:366) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:415) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:302) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseConcurrentProgram(TraceAbstractionStarter.java:225) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:173) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:154) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:124) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:167) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:150) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:127) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:233) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:227) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:144) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:106) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:319) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1518) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:701) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:383) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:258) ... 46 more [2023-09-07 10:27:30,280 INFO L158 Benchmark]: Toolchain (without parser) took 802473.96ms. Allocated memory was 267.4MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 215.6MB in the beginning and 691.0MB in the end (delta: -475.4MB). Peak memory consumption was 539.1MB. Max. memory is 7.0GB. [2023-09-07 10:27:30,281 INFO L158 Benchmark]: CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 7.0GB. [2023-09-07 10:27:30,281 INFO L158 Benchmark]: CACSL2BoogieTranslator took 270.77ms. Allocated memory is still 267.4MB. Free memory was 215.3MB in the beginning and 202.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 7.0GB. [2023-09-07 10:27:30,281 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.59ms. Allocated memory is still 267.4MB. Free memory was 202.0MB in the beginning and 198.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 7.0GB. [2023-09-07 10:27:30,281 INFO L158 Benchmark]: Boogie Preprocessor took 37.08ms. Allocated memory is still 267.4MB. Free memory was 198.5MB in the beginning and 195.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. [2023-09-07 10:27:30,281 INFO L158 Benchmark]: RCFGBuilder took 1031.10ms. Allocated memory is still 267.4MB. Free memory was 195.7MB in the beginning and 179.9MB in the end (delta: 15.8MB). Peak memory consumption was 27.8MB. Max. memory is 7.0GB. [2023-09-07 10:27:30,282 INFO L158 Benchmark]: TraceAbstraction took 801078.99ms. Allocated memory was 267.4MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 179.4MB in the beginning and 691.0MB in the end (delta: -511.6MB). Peak memory consumption was 501.9MB. Max. memory is 7.0GB. [2023-09-07 10:27:30,283 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11ms. Allocated memory is still 185.6MB. Free memory is still 138.6MB. There was no memory consumed. Max. memory is 7.0GB. * CACSL2BoogieTranslator took 270.77ms. Allocated memory is still 267.4MB. Free memory was 215.3MB in the beginning and 202.0MB in the end (delta: 13.3MB). Peak memory consumption was 12.6MB. Max. memory is 7.0GB. * Boogie Procedure Inliner took 49.59ms. Allocated memory is still 267.4MB. Free memory was 202.0MB in the beginning and 198.5MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 7.0GB. * Boogie Preprocessor took 37.08ms. Allocated memory is still 267.4MB. Free memory was 198.5MB in the beginning and 195.7MB in the end (delta: 2.8MB). Peak memory consumption was 2.1MB. Max. memory is 7.0GB. * RCFGBuilder took 1031.10ms. Allocated memory is still 267.4MB. Free memory was 195.7MB in the beginning and 179.9MB in the end (delta: 15.8MB). Peak memory consumption was 27.8MB. Max. memory is 7.0GB. * TraceAbstraction took 801078.99ms. Allocated memory was 267.4MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 179.4MB in the beginning and 691.0MB in the end (delta: -511.6MB). Peak memory consumption was 501.9MB. Max. memory is 7.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1) with exit command (exit)) Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:262) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2023-09-07 10:27:30,295 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 Received shutdown request...