/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf -tc ../../../trunk/examples/toolchains/AutomizerBpl.xml -i ../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 13:02:34,800 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 13:02:34,803 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 13:02:34,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 13:02:34,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 13:02:34,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 13:02:34,859 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 13:02:34,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 13:02:34,865 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 13:02:34,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 13:02:34,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 13:02:34,872 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-03 13:02:34,872 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-03 13:02:34,874 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-03 13:02:34,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-03 13:02:34,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-03 13:02:34,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-03 13:02:34,879 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-03 13:02:34,882 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-03 13:02:34,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-03 13:02:34,890 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-03 13:02:34,891 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-03 13:02:34,893 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-03 13:02:34,894 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-03 13:02:34,901 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-10-03 13:02:34,902 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-10-03 13:02:34,902 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-10-03 13:02:34,904 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-10-03 13:02:34,904 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-10-03 13:02:34,905 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... 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[2022-10-03 13:02:34,909 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-03 13:02:34,910 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-03 13:02:34,910 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-03 13:02:34,911 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 13:02:34,946 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 13:02:34,946 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 13:02:34,947 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 13:02:34,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 13:02:34,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 13:02:34,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 13:02:34,949 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 13:02:34,949 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 13:02:34,949 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 13:02:34,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 13:02:34,949 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 13:02:34,950 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 13:02:34,950 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 13:02:34,950 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 13:02:34,950 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 13:02:34,951 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 13:02:34,951 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 13:02:34,951 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 13:02:34,951 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 13:02:34,951 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 13:02:34,951 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 13:02:34,951 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 13:02:34,952 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 13:02:34,952 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 13:02:34,952 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 13:02:34,952 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 13:02:34,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 13:02:34,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 13:02:34,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 13:02:34,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 13:02:34,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 13:02:34,953 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 13:02:34,953 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 13:02:34,953 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 13:02:34,953 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 13:02:34,953 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 13:02:34,954 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 13:02:34,954 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 13:02:34,954 INFO L138 SettingsManager]: * Independence relation used for POR in concurrent analysis=SYNTACTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 13:02:35,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 13:02:35,243 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 13:02:35,246 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 13:02:35,247 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 13:02:35,251 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 13:02:35,253 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl [2022-10-03 13:02:35,254 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl' [2022-10-03 13:02:35,301 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 13:02:35,303 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 13:02:35,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 13:02:35,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 13:02:35,304 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 13:02:35,320 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:02:35" (1/1) ... [2022-10-03 13:02:35,322 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:02:35" (1/1) ... [2022-10-03 13:02:35,338 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:02:35" (1/1) ... [2022-10-03 13:02:35,338 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:02:35" (1/1) ... [2022-10-03 13:02:35,361 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:02:35" (1/1) ... [2022-10-03 13:02:35,370 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:02:35" (1/1) ... [2022-10-03 13:02:35,372 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:02:35" (1/1) ... [2022-10-03 13:02:35,376 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 13:02:35,385 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 13:02:35,385 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 13:02:35,385 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 13:02:35,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:02:35" (1/1) ... [2022-10-03 13:02:35,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 13:02:35,409 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:02:35,422 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) [2022-10-03 13:02:35,428 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 [2022-10-03 13:02:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure worker [2022-10-03 13:02:35,458 INFO L138 BoogieDeclarations]: Found implementation of procedure worker [2022-10-03 13:02:35,458 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 13:02:35,458 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 13:02:35,460 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-10-03 13:02:35,663 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 13:02:35,665 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 13:02:36,169 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 13:02:36,188 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 13:02:36,188 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-03 13:02:36,194 INFO L202 PluginConnector]: Adding new model 13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 01:02:36 BoogieIcfgContainer [2022-10-03 13:02:36,195 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 13:02:36,198 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 13:02:36,198 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 13:02:36,203 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 13:02:36,203 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 01:02:35" (1/2) ... [2022-10-03 13:02:36,204 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a0f6bbd and model type 13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 01:02:36, skipping insertion in model container [2022-10-03 13:02:36,205 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 01:02:36" (2/2) ... [2022-10-03 13:02:36,206 INFO L112 eAbstractionObserver]: Analyzing ICFG 13-privatized_68-pfscan_protected_loop_minimal_interval_true.line285.bpl [2022-10-03 13:02:36,218 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 13:02:36,227 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 13:02:36,228 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 13:02:36,228 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 13:02:36,314 INFO L144 ThreadInstanceAdder]: Constructed 0 joinOtherThreadTransitions. [2022-10-03 13:02:36,363 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:02:36,364 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:02:36,364 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:02:36,366 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) [2022-10-03 13:02:36,383 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 [2022-10-03 13:02:36,411 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:02:36,431 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES ======== [2022-10-03 13:02:36,438 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;@6b8000d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:02:36,439 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:02:36,481 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES (0 of 1 remaining) [2022-10-03 13:02:36,485 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 13:02:36,488 INFO L307 ceAbstractionStarter]: Result for error location ULTIMATE.startErr0INUSE_VIOLATIONSUFFICIENT_THREAD_INSTANCES was SAFE (1/3) [2022-10-03 13:02:36,497 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:02:36,497 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:02:36,498 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:02:36,500 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 13:02:36,501 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Waiting until timeout for monitored process [2022-10-03 13:02:36,505 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:02:36,508 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == workerErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 13:02:36,509 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;@6b8000d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:02:36,510 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:02:36,510 WARN L124 DepthFirstTraversal]: Depth first traversal did not find any initial state. Returning directly. [2022-10-03 13:02:36,510 INFO L805 garLoopResultBuilder]: Registering result SAFE for location workerErr0ASSERT_VIOLATIONASSERT (0 of 1 remaining) [2022-10-03 13:02:36,511 INFO L444 BasicCegarLoop]: Path program histogram: [] [2022-10-03 13:02:36,511 INFO L307 ceAbstractionStarter]: Result for error location workerErr0ASSERT_VIOLATIONASSERT was SAFE (2/3) [2022-10-03 13:02:36,519 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 13:02:36,519 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 13:02:36,519 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:02:36,561 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-10-03 13:02:36,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-10-03 13:02:36,567 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 13:02:36,567 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == workerErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 13:02:36,568 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;@6b8000d1, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 13:02:36,568 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 13:02:36,662 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:02:36,667 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:02:36,667 INFO L85 PathProgramCache]: Analyzing trace with hash 357481142, now seen corresponding path program 1 times [2022-10-03 13:02:36,675 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:02:36,676 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [180789549] [2022-10-03 13:02:36,676 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:02:36,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:02:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:02:36,936 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 13:02:36,937 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:02:36,937 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [180789549] [2022-10-03 13:02:36,938 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [180789549] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:02:36,938 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:02:36,938 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 13:02:36,939 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510307055] [2022-10-03 13:02:36,940 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:02:36,946 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 13:02:36,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:02:36,965 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 13:02:36,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 13:02:36,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:36,973 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:02:36,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 63.0) internal successors, (126), 2 states have internal predecessors, (126), 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) [2022-10-03 13:02:36,975 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:37,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:37,030 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 13:02:37,031 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:02:37,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:02:37,031 INFO L85 PathProgramCache]: Analyzing trace with hash 1571955409, now seen corresponding path program 1 times [2022-10-03 13:02:37,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:02:37,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1550290379] [2022-10-03 13:02:37,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:02:37,032 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:02:37,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:02:37,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-03 13:02:37,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:02:37,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1550290379] [2022-10-03 13:02:37,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1550290379] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:02:37,494 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:02:37,495 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2022-10-03 13:02:37,495 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1016729550] [2022-10-03 13:02:37,495 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:02:37,496 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-03 13:02:37,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:02:37,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-03 13:02:37,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=109, Unknown=0, NotChecked=0, Total=132 [2022-10-03 13:02:37,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:37,498 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:02:37,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 12.272727272727273) internal successors, (135), 12 states have internal predecessors, (135), 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) [2022-10-03 13:02:37,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:37,498 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:38,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:38,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:02:38,415 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 13:02:38,415 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:02:38,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:02:38,416 INFO L85 PathProgramCache]: Analyzing trace with hash -1236180784, now seen corresponding path program 1 times [2022-10-03 13:02:38,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:02:38,416 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [25355385] [2022-10-03 13:02:38,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:02:38,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:02:38,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:02:39,180 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 436 proven. 28 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-10-03 13:02:39,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:02:39,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [25355385] [2022-10-03 13:02:39,181 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [25355385] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:02:39,181 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [175599514] [2022-10-03 13:02:39,181 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:02:39,181 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:02:39,181 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:02:39,185 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) [2022-10-03 13:02:39,186 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-03 13:02:39,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:02:39,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-03 13:02:39,468 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:02:41,507 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 324 proven. 140 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-10-03 13:02:41,507 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:02:41,607 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-10-03 13:02:41,608 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 12 treesize of output 11 [2022-10-03 13:02:41,712 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 436 proven. 28 refuted. 0 times theorem prover too weak. 492 trivial. 0 not checked. [2022-10-03 13:02:41,713 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [175599514] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:02:41,713 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:02:41,713 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 18 [2022-10-03 13:02:41,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [877631577] [2022-10-03 13:02:41,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:02:41,716 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-03 13:02:41,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:02:41,717 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-03 13:02:41,718 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=294, Unknown=0, NotChecked=0, Total=342 [2022-10-03 13:02:41,718 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:41,719 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:02:41,719 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 38.833333333333336) internal successors, (699), 19 states have internal predecessors, (699), 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) [2022-10-03 13:02:41,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:41,719 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:02:41,720 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:42,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:42,807 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:02:42,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:02:42,838 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-10-03 13:02:43,023 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:02:43,024 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:02:43,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:02:43,024 INFO L85 PathProgramCache]: Analyzing trace with hash -1582473034, now seen corresponding path program 1 times [2022-10-03 13:02:43,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:02:43,025 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [454717218] [2022-10-03 13:02:43,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:02:43,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:02:43,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:02:43,549 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 434 proven. 28 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-10-03 13:02:43,550 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:02:43,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [454717218] [2022-10-03 13:02:43,550 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [454717218] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:02:43,550 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [406446685] [2022-10-03 13:02:43,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:02:43,551 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:02:43,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:02:43,552 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) [2022-10-03 13:02:43,554 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-03 13:02:43,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:02:43,806 INFO L263 TraceCheckSpWp]: Trace formula consists of 1334 conjuncts, 17 conjunts are in the unsatisfiable core [2022-10-03 13:02:43,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:02:45,754 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 294 proven. 168 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-10-03 13:02:45,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:02:45,811 INFO L356 Elim1Store]: treesize reduction 5, result has 37.5 percent of original size [2022-10-03 13:02:45,812 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 12 treesize of output 11 [2022-10-03 13:02:45,894 INFO L134 CoverageAnalysis]: Checked inductivity of 1277 backedges. 434 proven. 28 refuted. 0 times theorem prover too weak. 815 trivial. 0 not checked. [2022-10-03 13:02:45,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [406446685] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:02:45,895 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:02:45,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9, 8] total 18 [2022-10-03 13:02:45,896 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1728721566] [2022-10-03 13:02:45,896 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:02:45,897 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-03 13:02:45,898 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:02:45,898 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-03 13:02:45,899 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=293, Unknown=0, NotChecked=0, Total=342 [2022-10-03 13:02:45,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:45,899 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:02:45,900 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 36.611111111111114) internal successors, (659), 19 states have internal predecessors, (659), 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) [2022-10-03 13:02:45,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:45,900 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:02:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:02:45,901 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:02:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:02:46,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:02:46,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-03 13:02:46,733 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:02:46,734 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:02:46,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:02:46,734 INFO L85 PathProgramCache]: Analyzing trace with hash 2052386448, now seen corresponding path program 2 times [2022-10-03 13:02:46,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:02:46,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944089028] [2022-10-03 13:02:46,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:02:46,735 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:02:46,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:02:47,439 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 742 proven. 8 refuted. 0 times theorem prover too weak. 206 trivial. 0 not checked. [2022-10-03 13:02:47,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:02:47,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944089028] [2022-10-03 13:02:47,440 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944089028] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:02:47,440 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [107948956] [2022-10-03 13:02:47,440 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-03 13:02:47,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:02:47,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:02:47,442 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) [2022-10-03 13:02:47,443 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-03 13:02:47,735 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-03 13:02:47,735 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 13:02:47,743 INFO L263 TraceCheckSpWp]: Trace formula consists of 1222 conjuncts, 63 conjunts are in the unsatisfiable core [2022-10-03 13:02:47,754 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:02:48,058 INFO L356 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2022-10-03 13:02:48,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-03 13:02:48,341 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-03 13:02:48,535 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 13:02:48,537 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-03 13:02:48,863 INFO L134 CoverageAnalysis]: Checked inductivity of 956 backedges. 135 proven. 0 refuted. 0 times theorem prover too weak. 821 trivial. 0 not checked. [2022-10-03 13:02:48,864 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 13:02:48,864 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [107948956] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:02:48,864 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 13:02:48,864 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [20] imperfect sequences [12] total 29 [2022-10-03 13:02:48,865 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [54877560] [2022-10-03 13:02:48,865 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:02:48,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2022-10-03 13:02:48,865 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:02:48,866 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2022-10-03 13:02:48,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=714, Unknown=0, NotChecked=0, Total=812 [2022-10-03 13:02:48,867 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:48,867 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:02:48,868 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 13.8) internal successors, (276), 20 states have internal predecessors, (276), 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) [2022-10-03 13:02:48,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:48,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:02:48,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 18 states. [2022-10-03 13:02:48,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:02:48,868 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:02:51,581 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:02:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:02:51,582 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-03 13:02:51,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-10-03 13:02:51,803 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:02:51,803 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:02:51,804 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:02:51,804 INFO L85 PathProgramCache]: Analyzing trace with hash 1611650121, now seen corresponding path program 1 times [2022-10-03 13:02:51,804 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:02:51,805 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1968096728] [2022-10-03 13:02:51,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:02:51,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:02:52,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:02:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 920 proven. 11 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2022-10-03 13:02:52,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:02:52,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1968096728] [2022-10-03 13:02:52,721 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1968096728] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:02:52,721 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597967065] [2022-10-03 13:02:52,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:02:52,722 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:02:52,722 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:02:52,725 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:02:52,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-03 13:02:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:02:53,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 1640 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-03 13:02:53,063 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:02:54,309 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 [2022-10-03 13:02:54,333 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 909 proven. 22 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2022-10-03 13:02:54,334 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:02:54,351 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 13:02:54,352 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 12 treesize of output 8 [2022-10-03 13:02:54,374 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 14 [2022-10-03 13:02:55,234 INFO L134 CoverageAnalysis]: Checked inductivity of 1617 backedges. 920 proven. 11 refuted. 0 times theorem prover too weak. 686 trivial. 0 not checked. [2022-10-03 13:02:55,234 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597967065] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:02:55,234 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:02:55,235 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 9, 8] total 26 [2022-10-03 13:02:55,235 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [809132387] [2022-10-03 13:02:55,235 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:02:55,236 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-03 13:02:55,237 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:02:55,237 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-03 13:02:55,237 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=574, Unknown=0, NotChecked=0, Total=650 [2022-10-03 13:02:55,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:55,238 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:02:55,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 37.11538461538461) internal successors, (965), 26 states have internal predecessors, (965), 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) [2022-10-03 13:02:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:02:55,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:02:55,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:02:55,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-10-03 13:02:55,240 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:02:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:02:56,843 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:02:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:02:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-03 13:02:56,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:02:56,873 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-03 13:02:57,061 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:02:57,062 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:02:57,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:02:57,062 INFO L85 PathProgramCache]: Analyzing trace with hash 625579489, now seen corresponding path program 2 times [2022-10-03 13:02:57,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:02:57,062 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1540365501] [2022-10-03 13:02:57,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:02:57,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:02:57,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:02:58,605 INFO L134 CoverageAnalysis]: Checked inductivity of 6324 backedges. 4012 proven. 44 refuted. 0 times theorem prover too weak. 2268 trivial. 0 not checked. [2022-10-03 13:02:58,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:02:58,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1540365501] [2022-10-03 13:02:58,606 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1540365501] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:02:58,606 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739902477] [2022-10-03 13:02:58,606 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-03 13:02:58,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:02:58,607 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:02:58,612 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:02:58,622 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-03 13:02:59,072 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-03 13:02:59,072 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 13:02:59,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 2788 conjuncts, 30 conjunts are in the unsatisfiable core [2022-10-03 13:02:59,106 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:02:59,854 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-03 13:02:59,912 INFO L134 CoverageAnalysis]: Checked inductivity of 6324 backedges. 603 proven. 7 refuted. 0 times theorem prover too weak. 5714 trivial. 0 not checked. [2022-10-03 13:02:59,912 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:03:00,109 INFO L356 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-10-03 13:03:00,109 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 14 [2022-10-03 13:03:00,263 INFO L134 CoverageAnalysis]: Checked inductivity of 6324 backedges. 610 proven. 0 refuted. 0 times theorem prover too weak. 5714 trivial. 0 not checked. [2022-10-03 13:03:00,264 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739902477] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-03 13:03:00,264 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-03 13:03:00,264 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [15, 14] total 34 [2022-10-03 13:03:00,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034907117] [2022-10-03 13:03:00,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:03:00,265 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2022-10-03 13:03:00,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:03:00,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2022-10-03 13:03:00,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=100, Invalid=1022, Unknown=0, NotChecked=0, Total=1122 [2022-10-03 13:03:00,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:00,267 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:03:00,268 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 31.181818181818183) internal successors, (343), 11 states have internal predecessors, (343), 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) [2022-10-03 13:03:00,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:00,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:03:00,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:00,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:03:00,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-10-03 13:03:00,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:00,268 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:01,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:01,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:03:01,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:01,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:03:01,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-03 13:03:01,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:01,201 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-03 13:03:01,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-03 13:03:01,401 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-10-03 13:03:01,402 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:03:01,402 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:03:01,402 INFO L85 PathProgramCache]: Analyzing trace with hash -1124283661, now seen corresponding path program 3 times [2022-10-03 13:03:01,402 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:03:01,402 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896585676] [2022-10-03 13:03:01,403 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:03:01,403 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:03:01,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:03:03,373 INFO L134 CoverageAnalysis]: Checked inductivity of 3637 backedges. 2415 proven. 236 refuted. 0 times theorem prover too weak. 986 trivial. 0 not checked. [2022-10-03 13:03:03,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:03:03,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896585676] [2022-10-03 13:03:03,374 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896585676] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:03:03,374 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [421420899] [2022-10-03 13:03:03,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-03 13:03:03,375 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:03:03,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:03:03,376 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:03:03,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-03 13:03:03,847 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-10-03 13:03:03,847 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 13:03:03,858 INFO L263 TraceCheckSpWp]: Trace formula consists of 1261 conjuncts, 50 conjunts are in the unsatisfiable core [2022-10-03 13:03:03,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:03:04,797 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2022-10-03 13:03:05,503 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-03 13:03:05,506 INFO L356 Elim1Store]: treesize reduction 2, result has 33.3 percent of original size [2022-10-03 13:03:05,507 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 19 treesize of output 1 [2022-10-03 13:03:05,514 INFO L134 CoverageAnalysis]: Checked inductivity of 3637 backedges. 2098 proven. 0 refuted. 0 times theorem prover too weak. 1539 trivial. 0 not checked. [2022-10-03 13:03:05,514 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 13:03:05,514 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [421420899] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:03:05,514 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 13:03:05,515 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [19] total 30 [2022-10-03 13:03:05,515 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3801749] [2022-10-03 13:03:05,515 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:03:05,516 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-03 13:03:05,516 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:03:05,517 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-03 13:03:05,517 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=755, Unknown=0, NotChecked=0, Total=870 [2022-10-03 13:03:05,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:05,518 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:03:05,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 37.53846153846154) internal successors, (488), 13 states have internal predecessors, (488), 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) [2022-10-03 13:03:05,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:05,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:03:05,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:05,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:03:05,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-10-03 13:03:05,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:05,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-03 13:03:05,519 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:07,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:03:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:03:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2022-10-03 13:03:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-03 13:03:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-03 13:03:07,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:03:07,324 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-03 13:03:07,511 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:03:07,512 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:03:07,512 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:03:07,512 INFO L85 PathProgramCache]: Analyzing trace with hash 1289550297, now seen corresponding path program 4 times [2022-10-03 13:03:07,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:03:07,512 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936762069] [2022-10-03 13:03:07,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:03:07,513 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:03:07,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:03:09,055 INFO L134 CoverageAnalysis]: Checked inductivity of 4666 backedges. 465 proven. 0 refuted. 0 times theorem prover too weak. 4201 trivial. 0 not checked. [2022-10-03 13:03:09,056 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:03:09,056 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936762069] [2022-10-03 13:03:09,056 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936762069] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 13:03:09,057 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 13:03:09,057 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2022-10-03 13:03:09,057 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053832169] [2022-10-03 13:03:09,057 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 13:03:09,058 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-03 13:03:09,058 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:03:09,059 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-03 13:03:09,059 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2022-10-03 13:03:09,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:09,059 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:03:09,060 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 21.4) internal successors, (321), 15 states have internal predecessors, (321), 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) [2022-10-03 13:03:09,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:09,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:03:09,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:09,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:03:09,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2022-10-03 13:03:09,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-10-03 13:03:09,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-03 13:03:09,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:03:09,060 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:10,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:03:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:03:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-03 13:03:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-03 13:03:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-03 13:03:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:03:10,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-03 13:03:10,413 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2022-10-03 13:03:10,414 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:03:10,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:03:10,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1148341265, now seen corresponding path program 5 times [2022-10-03 13:03:10,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:03:10,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [796512491] [2022-10-03 13:03:10,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:03:10,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:03:10,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:03:11,590 INFO L134 CoverageAnalysis]: Checked inductivity of 4666 backedges. 2993 proven. 10 refuted. 0 times theorem prover too weak. 1663 trivial. 0 not checked. [2022-10-03 13:03:11,590 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:03:11,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [796512491] [2022-10-03 13:03:11,590 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [796512491] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:03:11,590 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1607260319] [2022-10-03 13:03:11,591 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-03 13:03:11,591 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:03:11,591 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:03:11,592 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:03:11,593 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-03 13:03:11,889 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2022-10-03 13:03:11,890 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 13:03:11,895 INFO L263 TraceCheckSpWp]: Trace formula consists of 754 conjuncts, 98 conjunts are in the unsatisfiable core [2022-10-03 13:03:11,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:03:12,661 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 13:03:12,661 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 15 treesize of output 19 [2022-10-03 13:03:13,264 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 24 [2022-10-03 13:03:13,501 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 13 treesize of output 9 [2022-10-03 13:03:14,023 INFO L356 Elim1Store]: treesize reduction 27, result has 25.0 percent of original size [2022-10-03 13:03:14,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 23 treesize of output 22 [2022-10-03 13:03:14,201 INFO L134 CoverageAnalysis]: Checked inductivity of 4666 backedges. 1710 proven. 174 refuted. 0 times theorem prover too weak. 2782 trivial. 0 not checked. [2022-10-03 13:03:14,201 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:03:14,681 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 66 treesize of output 60 [2022-10-03 13:03:14,862 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 13:03:14,863 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 12 treesize of output 8 [2022-10-03 13:03:15,137 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 13:03:15,137 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 19 [2022-10-03 13:03:16,265 INFO L356 Elim1Store]: treesize reduction 4, result has 63.6 percent of original size [2022-10-03 13:03:16,266 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 17 treesize of output 16 [2022-10-03 13:03:16,499 INFO L134 CoverageAnalysis]: Checked inductivity of 4666 backedges. 1787 proven. 97 refuted. 0 times theorem prover too weak. 2782 trivial. 0 not checked. [2022-10-03 13:03:16,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1607260319] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:03:16,499 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:03:16,500 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 35, 31] total 71 [2022-10-03 13:03:16,502 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071368468] [2022-10-03 13:03:16,502 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:03:16,504 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 71 states [2022-10-03 13:03:16,504 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:03:16,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 71 interpolants. [2022-10-03 13:03:16,507 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=380, Invalid=4590, Unknown=0, NotChecked=0, Total=4970 [2022-10-03 13:03:16,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:16,509 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:03:16,510 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 71 states, 71 states have (on average 16.492957746478872) internal successors, (1171), 71 states have internal predecessors, (1171), 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) [2022-10-03 13:03:16,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:16,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:03:16,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:16,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:03:16,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-10-03 13:03:16,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-10-03 13:03:16,510 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-03 13:03:16,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:03:16,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-03 13:03:16,511 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:48,755 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:48,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:03:48,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:03:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-03 13:03:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-03 13:03:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-03 13:03:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:03:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-03 13:03:48,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 230 states. [2022-10-03 13:03:48,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-03 13:03:48,975 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-10-03 13:03:48,976 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:03:48,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:03:48,976 INFO L85 PathProgramCache]: Analyzing trace with hash -1835218673, now seen corresponding path program 1 times [2022-10-03 13:03:48,976 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:03:48,976 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057888805] [2022-10-03 13:03:48,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:03:48,977 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:03:49,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:03:51,451 INFO L134 CoverageAnalysis]: Checked inductivity of 9897 backedges. 4513 proven. 336 refuted. 0 times theorem prover too weak. 5048 trivial. 0 not checked. [2022-10-03 13:03:51,451 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:03:51,451 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057888805] [2022-10-03 13:03:51,452 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057888805] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:03:51,452 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381111246] [2022-10-03 13:03:51,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:03:51,452 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:03:51,452 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:03:51,453 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:03:51,460 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-03 13:03:51,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:03:51,976 INFO L263 TraceCheckSpWp]: Trace formula consists of 3581 conjuncts, 61 conjunts are in the unsatisfiable core [2022-10-03 13:03:51,997 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:03:53,110 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 7 [2022-10-03 13:03:53,620 INFO L134 CoverageAnalysis]: Checked inductivity of 9897 backedges. 1034 proven. 43 refuted. 0 times theorem prover too weak. 8820 trivial. 0 not checked. [2022-10-03 13:03:53,620 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:03:53,651 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 13:03:53,652 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 1 case distinctions, treesize of input 12 treesize of output 8 [2022-10-03 13:03:53,794 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 13:03:53,795 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 16 treesize of output 19 [2022-10-03 13:03:54,505 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 13:03:54,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 24 treesize of output 27 [2022-10-03 13:03:54,741 INFO L134 CoverageAnalysis]: Checked inductivity of 9897 backedges. 1034 proven. 43 refuted. 0 times theorem prover too weak. 8820 trivial. 0 not checked. [2022-10-03 13:03:54,742 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381111246] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:03:54,742 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:03:54,742 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 22, 21] total 83 [2022-10-03 13:03:54,743 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [300669159] [2022-10-03 13:03:54,743 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:03:54,745 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 83 states [2022-10-03 13:03:54,745 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:03:54,746 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 83 interpolants. [2022-10-03 13:03:54,748 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=322, Invalid=6484, Unknown=0, NotChecked=0, Total=6806 [2022-10-03 13:03:54,748 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:54,749 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:03:54,750 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 83 states, 83 states have (on average 12.903614457831326) internal successors, (1071), 83 states have internal predecessors, (1071), 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) [2022-10-03 13:03:54,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:03:54,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:03:54,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:03:54,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:03:54,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-10-03 13:03:54,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-10-03 13:03:54,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-03 13:03:54,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:03:54,750 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-03 13:03:54,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 230 states. [2022-10-03 13:03:54,751 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2022-10-03 13:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-03 13:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-03 13:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-03 13:05:50,695 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 412 states. [2022-10-03 13:05:50,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 535 states. [2022-10-03 13:05:50,718 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-03 13:05:50,896 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-03 13:05:50,897 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting workerErr0ASSERT_VIOLATIONASSERT === [workerErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 13:05:50,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 13:05:50,897 INFO L85 PathProgramCache]: Analyzing trace with hash 1129901979, now seen corresponding path program 1 times [2022-10-03 13:05:50,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 13:05:50,897 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2082604852] [2022-10-03 13:05:50,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:05:50,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 13:05:51,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:05:54,352 INFO L134 CoverageAnalysis]: Checked inductivity of 19891 backedges. 11175 proven. 79 refuted. 0 times theorem prover too weak. 8637 trivial. 0 not checked. [2022-10-03 13:05:54,353 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 13:05:54,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2082604852] [2022-10-03 13:05:54,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2082604852] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 13:05:54,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2097902691] [2022-10-03 13:05:54,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 13:05:54,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 13:05:54,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 13:05:54,355 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 13:05:54,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-03 13:05:55,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 13:05:55,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 5057 conjuncts, 111 conjunts are in the unsatisfiable core [2022-10-03 13:05:55,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 13:06:01,393 INFO L356 Elim1Store]: treesize reduction 13, result has 45.8 percent of original size [2022-10-03 13:06:01,394 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 1 new quantified variables, introduced 2 case distinctions, treesize of input 28 treesize of output 27 [2022-10-03 13:06:03,635 INFO L356 Elim1Store]: treesize reduction 31, result has 3.1 percent of original size [2022-10-03 13:06:03,636 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 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 50 treesize of output 26 [2022-10-03 13:06:03,662 INFO L134 CoverageAnalysis]: Checked inductivity of 19891 backedges. 9002 proven. 261 refuted. 0 times theorem prover too weak. 10628 trivial. 0 not checked. [2022-10-03 13:06:03,662 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 13:06:04,164 WARN L833 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_1895 Int)) (or (not (= (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_write~int_#ptr#1.base| (store (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_write~int_#ptr#1.base|) |c_ULTIMATE.start_write~int_#ptr#1.offset| v_ArrVal_1895)) |c_#memory_int|)) (not (<= |c_ULTIMATE.start_write~int_#value#1| v_ArrVal_1895)))) is different from false [2022-10-03 13:08:39,312 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 13:08:39,312 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 98 treesize of output 114 [2022-10-03 13:08:39,333 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 5 treesize of output 3 [2022-10-03 13:08:39,357 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 29 treesize of output 25 [2022-10-03 13:08:39,389 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 13:08:39,390 INFO L390 Elim1Store]: Elim1 did not use preprocessing 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 38 treesize of output 40 [2022-10-03 13:08:39,496 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 13:08:39,497 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 3 select indices, 3 select index equivalence classes, 0 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 176 treesize of output 186 [2022-10-03 13:08:41,400 INFO L134 CoverageAnalysis]: Checked inductivity of 19891 backedges. 8921 proven. 320 refuted. 0 times theorem prover too weak. 10628 trivial. 22 not checked. [2022-10-03 13:08:41,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2097902691] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 13:08:41,401 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 13:08:41,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 36, 33] total 78 [2022-10-03 13:08:41,402 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [721119770] [2022-10-03 13:08:41,402 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 13:08:41,405 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2022-10-03 13:08:41,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 13:08:41,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2022-10-03 13:08:41,407 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=382, Invalid=5398, Unknown=76, NotChecked=150, Total=6006 [2022-10-03 13:08:41,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:08:41,409 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 13:08:41,410 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 20.602564102564102) internal successors, (1607), 78 states have internal predecessors, (1607), 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) [2022-10-03 13:08:41,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:08:41,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 15 states. [2022-10-03 13:08:41,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-10-03 13:08:41,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 11 states. [2022-10-03 13:08:41,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 38 states. [2022-10-03 13:08:41,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 31 states. [2022-10-03 13:08:41,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2022-10-03 13:08:41,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2022-10-03 13:08:41,410 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 16 states. [2022-10-03 13:08:41,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 412 states. [2022-10-03 13:08:41,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 535 states. [2022-10-03 13:08:41,411 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 13:10:18,472 WARN L233 SmtUtils]: Spent 11.53s on a formula simplification. DAG size of input: 109 DAG size of output: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 13:10:43,453 WARN L233 SmtUtils]: Spent 10.82s on a formula simplification. DAG size of input: 109 DAG size of output: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 13:11:16,302 WARN L233 SmtUtils]: Spent 16.66s on a formula simplification. DAG size of input: 114 DAG size of output: 84 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 13:11:48,393 WARN L233 SmtUtils]: Spent 23.81s on a formula simplification. DAG size of input: 129 DAG size of output: 97 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 13:12:20,450 WARN L233 SmtUtils]: Spent 22.43s on a formula simplification. DAG size of input: 133 DAG size of output: 103 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 13:13:32,491 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse2 (select (select |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |c_~#pqb~0.offset|)) (.cse3 (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_~#pqb~0.base|))) (and (forall ((v_ArrVal_1895 Int)) (or (< v_ArrVal_1895 (+ |c_ULTIMATE.start_pqueue_put_#t~post4#1| 1)) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |c_ULTIMATE.start_pqueue_put_~qp#1.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)))) (= |c_~#pqb~0.base| |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) (= |c_workerThread1of1ForFork0_pqueue_get_~qp#1.base| |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) (= |c_ULTIMATE.start_pqueue_put_#in~qp#1.offset| |c_~#pqb~0.offset|) (= (+ |c_~#pqb~0.offset| 4) |c_workerThread1of1ForFork0_#PthreadsMutexLock_#inputPtr#1.offset|) (= |c_ULTIMATE.start_pqueue_put_~qp#1.base| |c_~#pqb~0.base|) (= |c_~#pqb~0.base| |c_workerThread1of1ForFork0_pqueue_get_#in~qp#1.base|) (forall ((v_ArrVal_1895 Int)) (or (< 0 (select (select (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_write~int_#ptr#1.base| (store (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_write~int_#ptr#1.base|) |c_ULTIMATE.start_write~int_#ptr#1.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)) (not (<= |c_ULTIMATE.start_write~int_#value#1| v_ArrVal_1895)))) (= |c_~#pqb~0.base| |c_ULTIMATE.start_pqueue_put_#in~qp#1.base|) (= |c_workerThread1of1ForFork0_read~int_#ptr#1.offset| |c_workerThread1of1ForFork0_pqueue_get_~qp#1.offset|) (= |c_ULTIMATE.start_pqueue_put_~qp#1.offset| |c_~#pqb~0.offset|) (<= 3 |c_~#pqb~0.base|) (<= 0 (select (select |c_#memory_int| |c_workerThread1of1ForFork0_pqueue_get_~qp#1.base|) |c_workerThread1of1ForFork0_pqueue_get_~qp#1.offset|)) (<= |c_~#pqb~0.base| 3) (= |c_~#pqb~0.offset| 0) (forall ((v_ArrVal_1895 Int)) (or (< v_ArrVal_1895 (+ 1 |c_ULTIMATE.start_pqueue_put_#t~mem3#1|)) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |c_ULTIMATE.start_pqueue_put_~qp#1.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)))) (forall ((|ULTIMATE.start_write~int_#ptr#1.offset| Int) (v_ArrVal_1892 Int) (v_ArrVal_1895 Int)) (let ((.cse1 (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_pqueue_put_~qp#1.base| (store (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |ULTIMATE.start_write~int_#ptr#1.offset| v_ArrVal_1892)))) (let ((.cse0 (select .cse1 |c_~#pqb~0.base|))) (or (< v_ArrVal_1895 (+ (select .cse0 |c_~#pqb~0.offset|) 1)) (< 0 (select (select (store .cse1 |c_~#pqb~0.base| (store .cse0 |c_~#pqb~0.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)) (< v_ArrVal_1892 (+ |c_ULTIMATE.start_pqueue_put_#t~post4#1| 1)))))) (= |c_ULTIMATE.start_pqueue_put_~qp#1.base| |c_ULTIMATE.start_read~int_#ptr#1.base|) (= |c_~#pqb~0.offset| |c_workerThread1of1ForFork0_pqueue_get_~qp#1.offset|) (forall ((v_ArrVal_1895 Int)) (or (< v_ArrVal_1895 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_read~int_#ptr#1.base|) |c_ULTIMATE.start_read~int_#ptr#1.offset|) 1)) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |c_ULTIMATE.start_pqueue_put_~qp#1.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)))) (<= .cse2 |c_ULTIMATE.start_pqueue_put_#t~mem3#1|) (forall ((v_ArrVal_1895 Int)) (or (< v_ArrVal_1895 (+ |c_ULTIMATE.start_pqueue_put_#t~post4#1| 1)) (< 0 (select (select (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_pqueue_put_~qp#1.base| (store (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |c_ULTIMATE.start_pqueue_put_~qp#1.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)))) (<= .cse2 |c_ULTIMATE.start_pqueue_put_#t~post4#1|) (<= 0 (select (select |c_#memory_int| |c_~#pqb~0.base|) |c_workerThread1of1ForFork0_pqueue_get_~qp#1.offset|)) (= |c_workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| |c_~#pqb~0.offset|) (<= (+ (select .cse3 |c_~#pqb~0.offset|) 1) |c_ULTIMATE.start_write~int_#value#1|) (<= 0 (select .cse3 |c_workerThread1of1ForFork0_pqueue_get_~qp#1.offset|)) (= |c_~#pqb~0.base| |c_workerThread1of1ForFork0_#PthreadsMutexLock_#inputPtr#1.base|) (= |c_ULTIMATE.start_read~int_#ptr#1.offset| |c_~#pqb~0.offset|) (= |c_~#pqb~0.base| |c_ULTIMATE.start_write~int_#ptr#1.base|) (= |c_~#pqb~0.base| |c_workerThread1of1ForFork0_pqueue_get_~qp#1.base|))) is different from false [2022-10-03 13:14:23,753 WARN L833 $PredicateComparison]: unable to prove that (let ((.cse0 (select (select |c_#memory_int| |c_workerThread1of1ForFork0_pqueue_get_~qp#1.base|) |c_workerThread1of1ForFork0_pqueue_get_~qp#1.offset|))) (let ((.cse4 (select (select |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |c_~#pqb~0.offset|)) (.cse5 (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_~#pqb~0.base|)) (.cse1 (<= 0 .cse0))) (and (forall ((v_ArrVal_1895 Int)) (or (< v_ArrVal_1895 (+ |c_ULTIMATE.start_pqueue_put_#t~post4#1| 1)) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |c_ULTIMATE.start_pqueue_put_~qp#1.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)))) (= |c_~#pqb~0.base| |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) (= |c_workerThread1of1ForFork0_pqueue_get_~qp#1.base| |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) (= |c_ULTIMATE.start_pqueue_put_#in~qp#1.offset| |c_~#pqb~0.offset|) (<= |c_workerThread1of1ForFork0_pqueue_get_#t~mem7#1| .cse0) (= (+ |c_~#pqb~0.offset| 4) |c_workerThread1of1ForFork0_#PthreadsMutexLock_#inputPtr#1.offset|) (= |c_ULTIMATE.start_pqueue_put_~qp#1.base| |c_~#pqb~0.base|) (= |c_~#pqb~0.base| |c_workerThread1of1ForFork0_pqueue_get_#in~qp#1.base|) (forall ((v_ArrVal_1895 Int)) (or (< 0 (select (select (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_write~int_#ptr#1.base| (store (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_write~int_#ptr#1.base|) |c_ULTIMATE.start_write~int_#ptr#1.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)) (not (<= |c_ULTIMATE.start_write~int_#value#1| v_ArrVal_1895)))) (= |c_~#pqb~0.base| |c_ULTIMATE.start_pqueue_put_#in~qp#1.base|) (= |c_workerThread1of1ForFork0_read~int_#ptr#1.offset| |c_workerThread1of1ForFork0_pqueue_get_~qp#1.offset|) (= |c_ULTIMATE.start_pqueue_put_~qp#1.offset| |c_~#pqb~0.offset|) (<= 3 |c_~#pqb~0.base|) .cse1 (<= |c_~#pqb~0.base| 3) (= |c_~#pqb~0.offset| 0) (forall ((v_ArrVal_1895 Int)) (or (< v_ArrVal_1895 (+ 1 |c_ULTIMATE.start_pqueue_put_#t~mem3#1|)) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |c_ULTIMATE.start_pqueue_put_~qp#1.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)))) (forall ((|ULTIMATE.start_write~int_#ptr#1.offset| Int) (v_ArrVal_1892 Int) (v_ArrVal_1895 Int)) (let ((.cse3 (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_pqueue_put_~qp#1.base| (store (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |ULTIMATE.start_write~int_#ptr#1.offset| v_ArrVal_1892)))) (let ((.cse2 (select .cse3 |c_~#pqb~0.base|))) (or (< v_ArrVal_1895 (+ (select .cse2 |c_~#pqb~0.offset|) 1)) (< 0 (select (select (store .cse3 |c_~#pqb~0.base| (store .cse2 |c_~#pqb~0.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)) (< v_ArrVal_1892 (+ |c_ULTIMATE.start_pqueue_put_#t~post4#1| 1)))))) (= |c_ULTIMATE.start_pqueue_put_~qp#1.base| |c_ULTIMATE.start_read~int_#ptr#1.base|) (= |c_~#pqb~0.offset| |c_workerThread1of1ForFork0_pqueue_get_~qp#1.offset|) (<= |c_workerThread1of1ForFork0_read~int_#value#1| .cse0) (forall ((v_ArrVal_1895 Int)) (or (< v_ArrVal_1895 (+ (select (select |c_#memory_int| |c_ULTIMATE.start_read~int_#ptr#1.base|) |c_ULTIMATE.start_read~int_#ptr#1.offset|) 1)) (< 0 (select (select (store |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |c_ULTIMATE.start_pqueue_put_~qp#1.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)))) (<= .cse4 |c_ULTIMATE.start_pqueue_put_#t~mem3#1|) (or (= |c_workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| 0) (and (= |c_workerThread1of1ForFork0___VERIFIER_assert_#in~cond#1| 1) .cse1)) (forall ((v_ArrVal_1895 Int)) (or (< v_ArrVal_1895 (+ |c_ULTIMATE.start_pqueue_put_#t~post4#1| 1)) (< 0 (select (select (store |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_pqueue_put_~qp#1.base| (store (select |c_ULTIMATE.start_write~int_old_#memory_int#1| |c_ULTIMATE.start_pqueue_put_~qp#1.base|) |c_ULTIMATE.start_pqueue_put_~qp#1.offset| v_ArrVal_1895)) |c_workerThread1of1ForFork0_read~int_#ptr#1.base|) |c_workerThread1of1ForFork0_read~int_#ptr#1.offset|)))) (<= .cse4 |c_ULTIMATE.start_pqueue_put_#t~post4#1|) (<= 0 (select (select |c_#memory_int| |c_~#pqb~0.base|) |c_workerThread1of1ForFork0_pqueue_get_~qp#1.offset|)) (= |c_workerThread1of1ForFork0_pqueue_get_#in~qp#1.offset| |c_~#pqb~0.offset|) (<= (+ (select .cse5 |c_~#pqb~0.offset|) 1) |c_ULTIMATE.start_write~int_#value#1|) (<= 0 (select .cse5 |c_workerThread1of1ForFork0_pqueue_get_~qp#1.offset|)) (or (= |c_workerThread1of1ForFork0___VERIFIER_assert_~cond#1| 0) (and .cse1 (= |c_workerThread1of1ForFork0___VERIFIER_assert_~cond#1| 1))) (= |c_~#pqb~0.base| |c_workerThread1of1ForFork0_#PthreadsMutexLock_#inputPtr#1.base|) (= |c_ULTIMATE.start_read~int_#ptr#1.offset| |c_~#pqb~0.offset|) (= |c_~#pqb~0.base| |c_ULTIMATE.start_write~int_#ptr#1.base|) (= |c_~#pqb~0.base| |c_workerThread1of1ForFork0_pqueue_get_~qp#1.base|)))) is different from false [2022-10-03 13:14:58,212 WARN L233 SmtUtils]: Spent 12.27s on a formula simplification. DAG size of input: 97 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-03 13:15:34,716 WARN L233 SmtUtils]: Spent 10.35s on a formula simplification. DAG size of input: 102 DAG size of output: 72 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2022-10-03 13:16:01,705 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 13:16:01,705 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 13:16:01,705 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 13:16:01,705 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 13:16:01,705 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-10-03 13:16:02,753 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (3)] Forceful destruction successful, exit code 0 [2022-10-03 13:16:02,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2022-10-03 13:16:02,771 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Ended with exit code 0 [2022-10-03 13:16:02,772 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2022-10-03 13:16:02,914 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-03 13:16:02,919 WARN L435 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process [2022-10-03 13:16:02,920 FATAL L? ?]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: Not enough levels on assertion stack at de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.pop(Scriptor.java:138) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.arrays.DiffWrapperScript.pop(DiffWrapperScript.java:99) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.scripttransfer.HistoryRecordingScript.pop(HistoryRecordingScript.java:117) at de.uni_freiburg.informatik.ultimate.logic.WrapperScript.pop(WrapperScript.java:153) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.pop(UndoableWrapperScript.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.UndoableWrapperScript.restore(UndoableWrapperScript.java:87) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.SmtUtils.simplify(SmtUtils.java:165) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:360) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:388) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicateForConjunction(PredicateUnifier.java:229) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.getOrConstructPredicate(DeterministicInterpolantAutomaton.java:282) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.DeterministicInterpolantAutomaton.constructSuccessorsAndTransitions(DeterministicInterpolantAutomaton.java:304) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:79) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.BasicAbstractInterpolantAutomaton.computeSuccs(BasicAbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:233) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.interpolantautomata.transitionappender.AbstractInterpolantAutomaton.internalSuccessors(AbstractInterpolantAutomaton.java:1) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:202) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:218) at de.uni_freiburg.informatik.ultimate.automata.nestedword.operations.ProductNwa.internalSuccessors(ProductNwa.java:202) at de.uni_freiburg.informatik.ultimate.automata.partialorder.MinimalSleepSetReduction.internalSuccessors(MinimalSleepSetReduction.java:152) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$0(INwaOutgoingLetterAndTransitionProvider.java:123) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.nextLetter(NestedIterator.java:69) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIterator.(NestedIterator.java:62) at de.uni_freiburg.informatik.ultimate.util.datastructures.relation.NestedIteratorNoopConstruction.(NestedIteratorNoopConstruction.java:48) at de.uni_freiburg.informatik.ultimate.automata.nestedword.INwaOutgoingLetterAndTransitionProvider.lambda$1(INwaOutgoingLetterAndTransitionProvider.java:124) at java.base/java.lang.Iterable.spliterator(Iterable.java:101) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.visitState(DepthFirstTraversal.java:234) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:164) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.(DepthFirstTraversal.java:97) at de.uni_freiburg.informatik.ultimate.automata.partialorder.DepthFirstTraversal.traverse(DepthFirstTraversal.java:121) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.PartialOrderReductionFacade.apply(PartialOrderReductionFacade.java:322) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.concurrency.PartialOrderCegarLoop.isAbstractionEmpty(PartialOrderCegarLoop.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:466) 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:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) 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) [2022-10-03 13:16:02,924 INFO L158 Benchmark]: Toolchain (without parser) took 807620.87ms. Allocated memory was 177.2MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 127.0MB in the beginning and 511.5MB in the end (delta: -384.5MB). Peak memory consumption was 746.5MB. Max. memory is 8.0GB. [2022-10-03 13:16:02,924 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.28ms. Allocated memory is still 177.2MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-03 13:16:02,924 INFO L158 Benchmark]: Boogie Preprocessor took 72.78ms. Allocated memory is still 177.2MB. Free memory was 126.9MB in the beginning and 124.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-03 13:16:02,924 INFO L158 Benchmark]: RCFGBuilder took 810.44ms. Allocated memory was 177.2MB in the beginning and 237.0MB in the end (delta: 59.8MB). Free memory was 124.2MB in the beginning and 196.4MB in the end (delta: -72.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. [2022-10-03 13:16:02,924 INFO L158 Benchmark]: TraceAbstraction took 806725.41ms. Allocated memory was 237.0MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 195.3MB in the beginning and 511.5MB in the end (delta: -316.2MB). Peak memory consumption was 754.9MB. Max. memory is 8.0GB. [2022-10-03 13:16:02,925 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks [2022-10-03 13:16:02,947 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 137 Benchmark results are: * Boogie PL CUP Parser took 0.28ms. Allocated memory is still 177.2MB. Free memory is still 129.5MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Preprocessor took 72.78ms. Allocated memory is still 177.2MB. Free memory was 126.9MB in the beginning and 124.3MB in the end (delta: 2.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 810.44ms. Allocated memory was 177.2MB in the beginning and 237.0MB in the end (delta: 59.8MB). Free memory was 124.2MB in the beginning and 196.4MB in the end (delta: -72.2MB). Peak memory consumption was 16.8MB. Max. memory is 8.0GB. * TraceAbstraction took 806725.41ms. Allocated memory was 237.0MB in the beginning and 1.3GB in the end (delta: 1.1GB). Free memory was 195.3MB in the beginning and 511.5MB in the end (delta: -316.2MB). Peak memory consumption was 754.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0, Statistics for Abstraction: - StatisticsResult: Independence relation #1 benchmarks IndependenceRelationWithAbstraction.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , IndependenceRelationWithAbstraction.Statistics on underlying relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 0, Statistics for Abstraction: - ExceptionOrErrorResult: SMTLIBException: Not enough levels on assertion stack de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: Not enough levels on assertion stack: de.uni_freiburg.informatik.ultimate.logic.NoopScript.pop(NoopScript.java:272) RESULT: Ultimate could not prove your program: Toolchain returned no result. Completed graceful shutdown