/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 --traceabstraction.abstraction.used.for.commutativity.in.por VARIABLES_GLOBAL -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-wip.dk.dynamic-abstractions-e2ee32c-m [2023-09-07 13:56:08,826 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-09-07 13:56:08,872 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep.epf [2023-09-07 13:56:08,875 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-09-07 13:56:08,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-09-07 13:56:08,876 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.Checked method. Library mode if empty. [2023-09-07 13:56:08,901 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-09-07 13:56:08,902 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-09-07 13:56:08,902 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-09-07 13:56:08,902 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-09-07 13:56:08,903 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-09-07 13:56:08,903 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-09-07 13:56:08,903 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-09-07 13:56:08,903 INFO L153 SettingsManager]: * Use SBE=true [2023-09-07 13:56:08,904 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-09-07 13:56:08,904 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-09-07 13:56:08,904 INFO L153 SettingsManager]: * sizeof long=4 [2023-09-07 13:56:08,904 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-09-07 13:56:08,904 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-09-07 13:56:08,905 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-09-07 13:56:08,905 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-09-07 13:56:08,908 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-09-07 13:56:08,909 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-09-07 13:56:08,909 INFO L153 SettingsManager]: * sizeof long double=12 [2023-09-07 13:56:08,912 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-09-07 13:56:08,912 INFO L153 SettingsManager]: * Use constant arrays=true [2023-09-07 13:56:08,913 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-09-07 13:56:08,913 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-09-07 13:56:08,913 INFO L153 SettingsManager]: * To the following directory=./dump/ [2023-09-07 13:56:08,913 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-09-07 13:56:08,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 13:56:08,914 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-09-07 13:56:08,914 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-09-07 13:56:08,914 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-09-07 13:56:08,914 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-09-07 13:56:08,914 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-09-07 13:56:08,914 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-09-07 13:56:08,914 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2023-09-07 13:56:08,915 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-09-07 13:56:08,915 INFO L153 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2023-09-07 13:56:08,915 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Prune known deadend states from previous iterations -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: CEGAR restart behaviour -> ONE_CEGAR_PER_ERROR_LOCATION Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Abstraction used for commutativity in POR -> VARIABLES_GLOBAL [2023-09-07 13:56:09,102 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-09-07 13:56:09,131 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-09-07 13:56:09,133 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-09-07 13:56:09,134 INFO L270 PluginConnector]: Initializing CDTParser... [2023-09-07 13:56:09,134 INFO L274 PluginConnector]: CDTParser initialized [2023-09-07 13:56:09,136 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2023-09-07 13:56:10,155 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-09-07 13:56:10,304 INFO L384 CDTParser]: Found 1 translation units. [2023-09-07 13:56:10,304 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-more-vector-add.wvr.c [2023-09-07 13:56:10,310 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fed8e961/ef3d9b52fc864f97bddcccb7f3e88b61/FLAGe2c96e626 [2023-09-07 13:56:10,321 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5fed8e961/ef3d9b52fc864f97bddcccb7f3e88b61 [2023-09-07 13:56:10,323 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-09-07 13:56:10,324 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-09-07 13:56:10,325 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-09-07 13:56:10,325 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-09-07 13:56:10,328 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-09-07 13:56:10,329 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,329 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dcd5a2e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10, skipping insertion in model container [2023-09-07 13:56:10,330 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,345 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-09-07 13:56:10,450 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-more-vector-add.wvr.c[2598,2611] [2023-09-07 13:56:10,456 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 13:56:10,463 INFO L202 MainTranslator]: Completed pre-run [2023-09-07 13:56:10,478 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-more-vector-add.wvr.c[2598,2611] [2023-09-07 13:56:10,483 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-09-07 13:56:10,497 INFO L206 MainTranslator]: Completed translation [2023-09-07 13:56:10,497 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10 WrapperNode [2023-09-07 13:56:10,497 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-09-07 13:56:10,498 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-09-07 13:56:10,498 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-09-07 13:56:10,498 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-09-07 13:56:10,506 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,531 INFO L138 Inliner]: procedures = 25, calls = 46, calls flagged for inlining = 11, calls inlined = 17, statements flattened = 204 [2023-09-07 13:56:10,532 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-09-07 13:56:10,532 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-09-07 13:56:10,532 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-09-07 13:56:10,533 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-09-07 13:56:10,539 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,539 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,541 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,541 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,547 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,550 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,554 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,555 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,558 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-09-07 13:56:10,558 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-09-07 13:56:10,558 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-09-07 13:56:10,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-09-07 13:56:10,559 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (1/1) ... [2023-09-07 13:56:10,563 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-09-07 13:56:10,573 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 13:56:10,605 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 13:56:10,669 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 13:56:10,695 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-09-07 13:56:10,696 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-09-07 13:56:10,696 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-09-07 13:56:10,696 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-09-07 13:56:10,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2023-09-07 13:56:10,696 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2023-09-07 13:56:10,696 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2023-09-07 13:56:10,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2023-09-07 13:56:10,697 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2023-09-07 13:56:10,697 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2023-09-07 13:56:10,697 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-09-07 13:56:10,697 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2023-09-07 13:56:10,698 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-09-07 13:56:10,699 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-09-07 13:56:10,699 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-09-07 13:56:10,700 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 13:56:10,809 INFO L236 CfgBuilder]: Building ICFG [2023-09-07 13:56:10,811 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-09-07 13:56:11,117 INFO L277 CfgBuilder]: Performing block encoding [2023-09-07 13:56:11,124 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-09-07 13:56:11,124 INFO L302 CfgBuilder]: Removed 7 assume(true) statements. [2023-09-07 13:56:11,126 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:56:11 BoogieIcfgContainer [2023-09-07 13:56:11,126 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-09-07 13:56:11,128 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-09-07 13:56:11,128 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-09-07 13:56:11,130 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-09-07 13:56:11,130 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.09 01:56:10" (1/3) ... [2023-09-07 13:56:11,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efc31d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:56:11, skipping insertion in model container [2023-09-07 13:56:11,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.09 01:56:10" (2/3) ... [2023-09-07 13:56:11,131 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3efc31d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.09 01:56:11, skipping insertion in model container [2023-09-07 13:56:11,131 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.09 01:56:11" (3/3) ... [2023-09-07 13:56:11,132 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-more-vector-add.wvr.c [2023-09-07 13:56:11,146 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2023-09-07 13:56:11,153 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-09-07 13:56:11,153 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-09-07 13:56:11,153 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2023-09-07 13:56:11,225 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2023-09-07 13:56:11,265 INFO L103 denceProviderFactory]: Independence Relation #1: [IndependenceType=SEMANTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=true, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 13:56:11,266 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2023-09-07 13:56:11,266 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 13:56:11,273 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 13:56:11,274 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 13:56:11,306 INFO L166 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2023-09-07 13:56:11,310 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION ======== [2023-09-07 13:56:11,315 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;@236e74e0, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-09-07 13:56:11,315 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-09-07 13:56:11,600 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 13:56:11,603 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 13:56:11,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1308250025, now seen corresponding path program 1 times [2023-09-07 13:56:11,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 13:56:11,610 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [344547406] [2023-09-07 13:56:11,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 13:56:11,610 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 13:56:11,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 13:56:11,880 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 13:56:11,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 13:56:11,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [344547406] [2023-09-07 13:56:11,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [344547406] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 13:56:11,881 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 13:56:11,881 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2023-09-07 13:56:11,882 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467463275] [2023-09-07 13:56:11,882 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 13:56:11,887 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2023-09-07 13:56:11,887 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 13:56:11,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2023-09-07 13:56:11,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2023-09-07 13:56:11,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:11,911 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 13:56:11,911 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 96.5) internal successors, (193), 2 states have internal predecessors, (193), 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 13:56:11,911 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:11,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:11,982 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-09-07 13:56:11,982 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 13:56:11,983 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 13:56:11,983 INFO L85 PathProgramCache]: Analyzing trace with hash 132817438, now seen corresponding path program 1 times [2023-09-07 13:56:11,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 13:56:11,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1882753342] [2023-09-07 13:56:11,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 13:56:11,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 13:56:12,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 13:56:12,548 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 13:56:12,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 13:56:12,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1882753342] [2023-09-07 13:56:12,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1882753342] provided 1 perfect and 0 imperfect interpolant sequences [2023-09-07 13:56:12,548 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-09-07 13:56:12,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2023-09-07 13:56:12,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1962346401] [2023-09-07 13:56:12,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 13:56:12,550 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-09-07 13:56:12,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 13:56:12,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-09-07 13:56:12,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2023-09-07 13:56:12,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:12,552 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 13:56:12,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 22.75) internal successors, (182), 8 states have internal predecessors, (182), 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 13:56:12,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:12,552 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:12,893 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 13:56:12,893 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-09-07 13:56:12,894 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 13:56:12,894 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 13:56:12,894 INFO L85 PathProgramCache]: Analyzing trace with hash -438704027, now seen corresponding path program 1 times [2023-09-07 13:56:12,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 13:56:12,895 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [712509274] [2023-09-07 13:56:12,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 13:56:12,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 13:56:12,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 13:56:13,147 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 13:56:13,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 13:56:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [712509274] [2023-09-07 13:56:13,147 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [712509274] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 13:56:13,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [266313861] [2023-09-07 13:56:13,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 13:56:13,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 13:56:13,148 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 13:56:13,170 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 13:56:13,178 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 13:56:13,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 13:56:13,303 INFO L262 TraceCheckSpWp]: Trace formula consists of 485 conjuncts, 6 conjunts are in the unsatisfiable core [2023-09-07 13:56:13,312 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 13:56:13,523 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 13:56:13,523 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 13:56:13,756 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 13:56:13,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [266313861] provided 1 perfect and 1 imperfect interpolant sequences [2023-09-07 13:56:13,757 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-09-07 13:56:13,757 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8, 7] total 14 [2023-09-07 13:56:13,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [225350314] [2023-09-07 13:56:13,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 13:56:13,757 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2023-09-07 13:56:13,758 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 13:56:13,758 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2023-09-07 13:56:13,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2023-09-07 13:56:13,759 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:13,759 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 13:56:13,759 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 30.0) internal successors, (210), 7 states have internal predecessors, (210), 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 13:56:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:13,759 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 13:56:13,760 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:13,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:13,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 13:56:13,840 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 13:56:13,846 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 13:56:14,046 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,SelfDestructingSolverStorable2 [2023-09-07 13:56:14,046 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 13:56:14,047 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 13:56:14,047 INFO L85 PathProgramCache]: Analyzing trace with hash -1918639555, now seen corresponding path program 1 times [2023-09-07 13:56:14,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 13:56:14,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1347055446] [2023-09-07 13:56:14,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 13:56:14,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 13:56:14,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 13:56:14,250 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 13:56:14,251 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 13:56:14,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1347055446] [2023-09-07 13:56:14,251 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1347055446] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 13:56:14,251 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1077671267] [2023-09-07 13:56:14,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 13:56:14,251 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 13:56:14,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 13:56:14,252 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 13:56:14,255 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 13:56:14,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 13:56:14,366 INFO L262 TraceCheckSpWp]: Trace formula consists of 501 conjuncts, 8 conjunts are in the unsatisfiable core [2023-09-07 13:56:14,370 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 13:56:14,572 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 13:56:14,572 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 13:56:14,803 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-09-07 13:56:14,803 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1077671267] provided 1 perfect and 1 imperfect interpolant sequences [2023-09-07 13:56:14,803 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2023-09-07 13:56:14,803 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [10, 9] total 18 [2023-09-07 13:56:14,803 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152334545] [2023-09-07 13:56:14,804 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-09-07 13:56:14,804 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-09-07 13:56:14,804 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-09-07 13:56:14,805 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-09-07 13:56:14,805 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=70, Invalid=236, Unknown=0, NotChecked=0, Total=306 [2023-09-07 13:56:14,805 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:14,805 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2023-09-07 13:56:14,805 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 24.333333333333332) internal successors, (219), 9 states have internal predecessors, (219), 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 13:56:14,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:14,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 8 states. [2023-09-07 13:56:14,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2023-09-07 13:56:14,806 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:14,937 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2023-09-07 13:56:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-09-07 13:56:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-09-07 13:56:14,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-09-07 13:56:14,949 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2023-09-07 13:56:15,148 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 13:56:15,148 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-09-07 13:56:15,148 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-09-07 13:56:15,148 INFO L85 PathProgramCache]: Analyzing trace with hash 2138021114, now seen corresponding path program 1 times [2023-09-07 13:56:15,149 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-09-07 13:56:15,149 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202839534] [2023-09-07 13:56:15,149 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 13:56:15,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-09-07 13:56:15,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 13:56:18,980 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2023-09-07 13:56:18,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-09-07 13:56:18,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202839534] [2023-09-07 13:56:18,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202839534] provided 0 perfect and 1 imperfect interpolant sequences [2023-09-07 13:56:18,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [108280659] [2023-09-07 13:56:18,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-09-07 13:56:18,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-09-07 13:56:18,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-09-07 13:56:19,001 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 13:56:19,003 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 13:56:19,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-09-07 13:56:19,147 INFO L262 TraceCheckSpWp]: Trace formula consists of 517 conjuncts, 137 conjunts are in the unsatisfiable core [2023-09-07 13:56:19,158 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-09-07 13:56:19,182 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 13:56:19,233 INFO L322 Elim1Store]: treesize reduction 11, result has 45.0 percent of original size [2023-09-07 13:56:19,234 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 1 case distinctions, treesize of input 12 treesize of output 18 [2023-09-07 13:56:19,305 INFO L322 Elim1Store]: treesize reduction 10, result has 64.3 percent of original size [2023-09-07 13:56:19,306 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 21 treesize of output 33 [2023-09-07 13:56:20,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:20,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:20,133 INFO L322 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2023-09-07 13:56:20,133 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 31 treesize of output 34 [2023-09-07 13:56:20,583 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 11 treesize of output 7 [2023-09-07 13:56:21,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:21,594 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:21,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:21,596 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:21,607 INFO L322 Elim1Store]: treesize reduction 26, result has 27.8 percent of original size [2023-09-07 13:56:21,607 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 36 treesize of output 46 [2023-09-07 13:56:22,065 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 11 treesize of output 7 [2023-09-07 13:56:22,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:22,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:22,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:22,985 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:23,031 INFO L322 Elim1Store]: treesize reduction 72, result has 38.5 percent of original size [2023-09-07 13:56:23,032 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 5 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 9 case distinctions, treesize of input 41 treesize of output 74 [2023-09-07 13:56:23,496 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 3 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 13:56:24,799 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:24,801 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:24,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:24,802 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-09-07 13:56:24,830 INFO L322 Elim1Store]: treesize reduction 16, result has 71.9 percent of original size [2023-09-07 13:56:24,830 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 8 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 7 case distinctions, treesize of input 44 treesize of output 72 [2023-09-07 13:56:25,309 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 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 13:56:26,342 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 13:56:26,572 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 13:56:26,767 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 2 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 13:56:27,180 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 24 [2023-09-07 13:56:27,922 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 36 [2023-09-07 13:56:29,153 INFO L351 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 17 [2023-09-07 13:56:29,229 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2023-09-07 13:56:29,229 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-09-07 13:59:18,591 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C2~0.offset Int) (|ULTIMATE.start_main_~k~0#1| Int) (~C1~0.offset Int) (v_ArrVal_235 (Array Int Int))) (or (< |ULTIMATE.start_main_~k~0#1| 0) (< c_~N~0 (+ |ULTIMATE.start_main_~k~0#1| 1)) (let ((.cse0 (let ((.cse3 (store |c_#memory_int| |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_235))) (store .cse3 c_~C1~0.base (store (select .cse3 c_~C1~0.base) ~C1~0.offset (+ (select (select .cse3 c_~A~0.base) c_~A~0.offset) (select (select .cse3 c_~B~0.base) c_~B~0.offset))))))) (let ((.cse1 (store (select .cse0 c_~C2~0.base) ~C2~0.offset (+ (select (select .cse0 c_~B~0.base) c_~B~0.offset) (select (select .cse0 c_~A~0.base) c_~A~0.offset)))) (.cse2 (* |ULTIMATE.start_main_~k~0#1| 4))) (= (mod (select (select (store .cse0 c_~C2~0.base .cse1) c_~C1~0.base) (+ .cse2 ~C1~0.offset)) 4294967296) (mod (select .cse1 (+ .cse2 ~C2~0.offset)) 4294967296)))))) is different from false [2023-09-07 13:59:18,674 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C2~0.offset Int) (|ULTIMATE.start_main_~k~0#1| Int) (~C1~0.offset Int) (v_ArrVal_234 (Array Int Int)) (v_ArrVal_235 (Array Int Int))) (or (< |ULTIMATE.start_main_~k~0#1| 0) (let ((.cse0 (let ((.cse3 (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_234) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_235))) (store .cse3 c_~C1~0.base (store (select .cse3 c_~C1~0.base) ~C1~0.offset (+ (select (select .cse3 c_~A~0.base) c_~A~0.offset) (select (select .cse3 c_~B~0.base) c_~B~0.offset))))))) (let ((.cse1 (store (select .cse0 c_~C2~0.base) ~C2~0.offset (+ (select (select .cse0 c_~A~0.base) c_~A~0.offset) (select (select .cse0 c_~B~0.base) c_~B~0.offset)))) (.cse2 (* |ULTIMATE.start_main_~k~0#1| 4))) (= (mod (select (select (store .cse0 c_~C2~0.base .cse1) c_~C1~0.base) (+ .cse2 ~C1~0.offset)) 4294967296) (mod (select .cse1 (+ .cse2 ~C2~0.offset)) 4294967296)))) (< c_~N~0 (+ |ULTIMATE.start_main_~k~0#1| 1)))) is different from false [2023-09-07 13:59:18,769 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C2~0.offset Int) (|ULTIMATE.start_main_~k~0#1| Int) (~C1~0.offset Int) (v_ArrVal_234 (Array Int Int)) (v_ArrVal_233 (Array Int Int)) (v_ArrVal_235 (Array Int Int))) (or (< |ULTIMATE.start_main_~k~0#1| 0) (< c_~N~0 (+ |ULTIMATE.start_main_~k~0#1| 1)) (let ((.cse0 (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_233) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_234) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_235))) (store .cse3 c_~C1~0.base (store (select .cse3 c_~C1~0.base) ~C1~0.offset (+ (select (select .cse3 c_~A~0.base) c_~A~0.offset) (select (select .cse3 c_~B~0.base) c_~B~0.offset))))))) (let ((.cse1 (store (select .cse0 c_~C2~0.base) ~C2~0.offset (+ (select (select .cse0 c_~B~0.base) c_~B~0.offset) (select (select .cse0 c_~A~0.base) c_~A~0.offset)))) (.cse2 (* |ULTIMATE.start_main_~k~0#1| 4))) (= (mod (select (select (store .cse0 c_~C2~0.base .cse1) c_~C1~0.base) (+ .cse2 ~C1~0.offset)) 4294967296) (mod (select .cse1 (+ .cse2 ~C2~0.offset)) 4294967296)))))) is different from false [2023-09-07 13:59:28,527 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C2~0.offset Int) (|ULTIMATE.start_main_~k~0#1| Int) (~C1~0.offset Int) (v_ArrVal_234 (Array Int Int)) (v_ArrVal_233 (Array Int Int)) (v_ArrVal_235 (Array Int Int))) (or (< |ULTIMATE.start_main_~k~0#1| 0) (< c_~N~0 (+ |ULTIMATE.start_main_~k~0#1| 1)) (let ((.cse0 (let ((.cse3 (store (store (store |c_#memory_int| |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_233) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_234) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_235))) (store .cse3 c_~C1~0.base (store (select .cse3 c_~C1~0.base) ~C1~0.offset (+ (select (select .cse3 c_~A~0.base) c_~A~0.offset) (select (select .cse3 c_~B~0.base) c_~B~0.offset))))))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_create_fresh_uint_array_#res#1.base|) ~C2~0.offset (+ (select (select .cse0 c_~B~0.base) c_~B~0.offset) (select (select .cse0 c_~A~0.base) c_~A~0.offset)))) (.cse2 (* |ULTIMATE.start_main_~k~0#1| 4))) (= (mod (select (select (store .cse0 |c_ULTIMATE.start_create_fresh_uint_array_#res#1.base| .cse1) c_~C1~0.base) (+ .cse2 ~C1~0.offset)) 4294967296) (mod (select .cse1 (+ .cse2 ~C2~0.offset)) 4294967296)))))) is different from false [2023-09-07 13:59:33,818 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C2~0.offset Int) (|ULTIMATE.start_main_~k~0#1| Int) (~C1~0.offset Int) (v_ArrVal_232 (Array Int Int)) (v_ArrVal_234 (Array Int Int)) (v_ArrVal_233 (Array Int Int)) (v_ArrVal_235 (Array Int Int))) (or (let ((.cse2 (let ((.cse3 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base| v_ArrVal_232) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_233) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_234) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_235))) (store .cse3 c_~C1~0.base (store (select .cse3 c_~C1~0.base) ~C1~0.offset (+ (select (select .cse3 c_~B~0.base) c_~B~0.offset) (select (select .cse3 c_~A~0.base) c_~A~0.offset))))))) (let ((.cse0 (store (select .cse2 |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base|) ~C2~0.offset (+ (select (select .cse2 c_~B~0.base) c_~B~0.offset) (select (select .cse2 c_~A~0.base) c_~A~0.offset)))) (.cse1 (* |ULTIMATE.start_main_~k~0#1| 4))) (= (mod (select .cse0 (+ .cse1 ~C2~0.offset)) 4294967296) (mod (select (select (store .cse2 |c_ULTIMATE.start_create_fresh_uint_array_~arr~0#1.base| .cse0) c_~C1~0.base) (+ .cse1 ~C1~0.offset)) 4294967296)))) (< |ULTIMATE.start_main_~k~0#1| 0) (< c_~N~0 (+ |ULTIMATE.start_main_~k~0#1| 1)))) is different from false [2023-09-07 13:59:33,907 WARN L839 $PredicateComparison]: unable to prove that (forall ((~C2~0.offset Int) (|ULTIMATE.start_main_~k~0#1| Int) (~C1~0.offset Int) (v_ArrVal_232 (Array Int Int)) (v_ArrVal_234 (Array Int Int)) (v_ArrVal_233 (Array Int Int)) (v_ArrVal_235 (Array Int Int))) (or (< |ULTIMATE.start_main_~k~0#1| 0) (let ((.cse2 (let ((.cse3 (store (store (store (store |c_#memory_int| |c_ULTIMATE.start_create_fresh_uint_array_#t~malloc28#1.base| v_ArrVal_232) |c_ULTIMATE.start_main_~#t1~0#1.base| v_ArrVal_233) |c_ULTIMATE.start_main_~#t2~0#1.base| v_ArrVal_234) |c_ULTIMATE.start_main_~#t3~0#1.base| v_ArrVal_235))) (store .cse3 c_~C1~0.base (store (select .cse3 c_~C1~0.base) ~C1~0.offset (+ (select (select .cse3 c_~B~0.base) c_~B~0.offset) (select (select .cse3 c_~A~0.base) c_~A~0.offset))))))) (let ((.cse0 (store (select .cse2 |c_ULTIMATE.start_create_fresh_uint_array_#t~malloc28#1.base|) ~C2~0.offset (+ (select (select .cse2 c_~A~0.base) c_~A~0.offset) (select (select .cse2 c_~B~0.base) c_~B~0.offset)))) (.cse1 (* |ULTIMATE.start_main_~k~0#1| 4))) (= (mod (select .cse0 (+ .cse1 ~C2~0.offset)) 4294967296) (mod (select (select (store .cse2 |c_ULTIMATE.start_create_fresh_uint_array_#t~malloc28#1.base| .cse0) c_~C1~0.base) (+ .cse1 ~C1~0.offset)) 4294967296)))) (< c_~N~0 (+ |ULTIMATE.start_main_~k~0#1| 1)))) is different from false [2023-09-07 13:59:54,543 INFO L322 Elim1Store]: treesize reduction 23, result has 60.3 percent of original size [2023-09-07 13:59:54,543 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 1 new quantified variables, introduced 2 case distinctions, treesize of input 1496 treesize of output 635 [2023-09-07 13:59:54,556 INFO L173 IndexEqualityManager]: detected equality via solver [2023-09-07 13:59:54,556 INFO L173 IndexEqualityManager]: detected equality via solver [2023-09-07 13:59:54,585 INFO L173 IndexEqualityManager]: detected equality via solver