/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/divinefifo_1w1r.line1839.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.por-optimizations-5c708e3-m [2022-10-03 15:51:00,688 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-03 15:51:00,690 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-03 15:51:00,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-03 15:51:00,720 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-03 15:51:00,721 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-03 15:51:00,722 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-03 15:51:00,723 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-03 15:51:00,724 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-03 15:51:00,725 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-03 15:51:00,725 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-03 15:51:00,726 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-10-03 15:51:00,755 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/gemcutter/NewStatesSleep-VarAbsGlobalSyntactic.epf [2022-10-03 15:51:00,769 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-03 15:51:00,769 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-03 15:51:00,769 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-03 15:51:00,770 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-03 15:51:00,771 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-03 15:51:00,771 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-03 15:51:00,771 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-03 15:51:00,771 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-03 15:51:00,771 INFO L138 SettingsManager]: * Use SBE=true [2022-10-03 15:51:00,771 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-03 15:51:00,772 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-03 15:51:00,773 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-03 15:51:00,773 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-03 15:51:00,773 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-03 15:51:00,773 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-03 15:51:00,773 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-03 15:51:00,773 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-03 15:51:00,773 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-03 15:51:00,773 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-03 15:51:00,773 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-03 15:51:00,773 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-03 15:51:00,774 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-03 15:51:00,774 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-03 15:51:00,774 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-10-03 15:51:00,774 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-03 15:51:00,774 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:51:00,774 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-03 15:51:00,775 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-03 15:51:00,775 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-03 15:51:00,775 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-03 15:51:00,776 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-03 15:51:00,776 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-10-03 15:51:00,776 INFO L138 SettingsManager]: * Abstraction used for commutativity in POR=VARIABLES_GLOBAL [2022-10-03 15:51:00,776 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-10-03 15:51:00,776 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-03 15:51:00,776 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_ERROR_LOCATION [2022-10-03 15:51:00,776 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=SLEEP_NEW_STATES [2022-10-03 15:51:00,776 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-10-03 15:51:00,776 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-03 15:51:00,934 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-03 15:51:00,948 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-03 15:51:00,950 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-03 15:51:00,951 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-10-03 15:51:00,956 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-10-03 15:51:00,957 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1839.bpl [2022-10-03 15:51:00,957 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/boogie-benchmarks-from-svcomp-memsafety-concurrent/divinefifo_1w1r.line1839.bpl' [2022-10-03 15:51:01,019 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-03 15:51:01,020 INFO L131 ToolchainWalker]: Walking toolchain with 3 elements. [2022-10-03 15:51:01,022 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-03 15:51:01,022 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-03 15:51:01,022 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-03 15:51:01,033 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:51:01" (1/1) ... [2022-10-03 15:51:01,034 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:51:01" (1/1) ... [2022-10-03 15:51:01,055 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:51:01" (1/1) ... [2022-10-03 15:51:01,055 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:51:01" (1/1) ... [2022-10-03 15:51:01,099 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:51:01" (1/1) ... [2022-10-03 15:51:01,110 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:51:01" (1/1) ... [2022-10-03 15:51:01,115 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:51:01" (1/1) ... [2022-10-03 15:51:01,131 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-03 15:51:01,134 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-03 15:51:01,134 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-03 15:51:01,134 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-03 15:51:01,135 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:51:01" (1/1) ... [2022-10-03 15:51:01,140 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-03 15:51:01,153 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:51:01,164 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 15:51:01,179 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 15:51:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure pusher [2022-10-03 15:51:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure pusher [2022-10-03 15:51:01,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-03 15:51:01,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-03 15:51:01,224 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 15:51:01,344 INFO L234 CfgBuilder]: Building ICFG [2022-10-03 15:51:01,345 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-03 15:51:02,258 INFO L275 CfgBuilder]: Performing block encoding [2022-10-03 15:51:02,294 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-03 15:51:02,295 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-03 15:51:02,298 INFO L202 PluginConnector]: Adding new model divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:51:02 BoogieIcfgContainer [2022-10-03 15:51:02,298 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-03 15:51:02,300 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-03 15:51:02,300 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-03 15:51:02,303 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-03 15:51:02,303 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.10 03:51:01" (1/2) ... [2022-10-03 15:51:02,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75b9bd4e and model type divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 03:51:02, skipping insertion in model container [2022-10-03 15:51:02,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "divinefifo_1w1r.line1839.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 03:51:02" (2/2) ... [2022-10-03 15:51:02,308 INFO L112 eAbstractionObserver]: Analyzing ICFG divinefifo_1w1r.line1839.bpl [2022-10-03 15:51:02,324 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-10-03 15:51:02,330 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-03 15:51:02,330 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-10-03 15:51:02,330 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-10-03 15:51:02,468 INFO L144 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2022-10-03 15:51:02,524 INFO L100 denceProviderFactory]: Independence Relation #1: [IndependenceType=SYNTACTIC, AbstractionType=VARIABLES_GLOBAL, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2022-10-03 15:51:02,524 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-10-03 15:51:02,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:51:02,527 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 15:51:02,550 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 15:51:02,560 INFO L158 artialOrderCegarLoop]: Running PartialOrderCegarLoop with 1 independence relations. [2022-10-03 15:51:02,565 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.startErr0ASSERT_VIOLATIONASSERT ======== [2022-10-03 15:51:02,570 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;@1ab24c05, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-03 15:51:02,570 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-10-03 15:51:02,744 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:51:02,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:51:02,747 INFO L85 PathProgramCache]: Analyzing trace with hash -1660105453, now seen corresponding path program 1 times [2022-10-03 15:51:02,753 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:51:02,753 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432138166] [2022-10-03 15:51:02,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:51:02,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:51:03,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:51:03,207 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 15:51:03,208 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:51:03,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432138166] [2022-10-03 15:51:03,208 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1432138166] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:51:03,209 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:51:03,209 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-03 15:51:03,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264450853] [2022-10-03 15:51:03,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:51:03,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-03 15:51:03,215 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:51:03,231 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-03 15:51:03,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-03 15:51:03,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:03,238 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:51:03,239 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 212.5) internal successors, (425), 2 states have internal predecessors, (425), 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 15:51:03,239 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:03,417 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:03,417 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-03 15:51:03,417 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:51:03,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:51:03,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1432686962, now seen corresponding path program 1 times [2022-10-03 15:51:03,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:51:03,420 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1902642676] [2022-10-03 15:51:03,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:51:03,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:51:03,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:51:03,641 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 15:51:03,642 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:51:03,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1902642676] [2022-10-03 15:51:03,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1902642676] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:51:03,642 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-03 15:51:03,642 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-03 15:51:03,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653831018] [2022-10-03 15:51:03,643 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:51:03,644 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-03 15:51:03,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:51:03,645 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-03 15:51:03,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-03 15:51:03,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:03,648 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:51:03,649 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 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 15:51:03,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:03,649 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:04,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:04,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-03 15:51:04,595 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-03 15:51:04,596 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:51:04,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:51:04,596 INFO L85 PathProgramCache]: Analyzing trace with hash -1919971403, now seen corresponding path program 1 times [2022-10-03 15:51:04,597 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:51:04,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [998217512] [2022-10-03 15:51:04,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:51:04,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:51:04,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:51:07,465 INFO L134 CoverageAnalysis]: Checked inductivity of 9782 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 9780 trivial. 0 not checked. [2022-10-03 15:51:07,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:51:07,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [998217512] [2022-10-03 15:51:07,466 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [998217512] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:51:07,466 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422728377] [2022-10-03 15:51:07,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:51:07,467 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:51:07,467 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:51:07,484 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 15:51:07,511 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-03 15:51:08,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:51:08,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 8445 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-03 15:51:08,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:51:11,493 INFO L134 CoverageAnalysis]: Checked inductivity of 9782 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 9780 trivial. 0 not checked. [2022-10-03 15:51:11,494 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-03 15:51:13,947 INFO L134 CoverageAnalysis]: Checked inductivity of 9782 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 9780 trivial. 0 not checked. [2022-10-03 15:51:13,947 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422728377] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-03 15:51:13,947 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-03 15:51:13,948 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-03 15:51:13,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [908365105] [2022-10-03 15:51:13,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-03 15:51:13,952 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-03 15:51:13,952 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:51:13,953 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-03 15:51:13,953 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-03 15:51:13,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:13,955 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:51:13,957 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 362.0) internal successors, (2534), 7 states have internal predecessors, (2534), 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 15:51:13,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:13,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-03 15:51:13,957 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:51:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-03 15:51:17,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 15:51:17,597 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-03 15:51:17,771 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2022-10-03 15:51:17,772 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:51:17,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:51:17,774 INFO L85 PathProgramCache]: Analyzing trace with hash -848774924, now seen corresponding path program 2 times [2022-10-03 15:51:17,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:51:17,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [30297700] [2022-10-03 15:51:17,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:51:17,775 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:51:24,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-03 15:51:42,585 INFO L134 CoverageAnalysis]: Checked inductivity of 120047 backedges. 274 proven. 92833 refuted. 0 times theorem prover too weak. 26940 trivial. 0 not checked. [2022-10-03 15:51:42,585 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-03 15:51:42,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [30297700] [2022-10-03 15:51:42,586 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [30297700] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-03 15:51:42,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1596515289] [2022-10-03 15:51:42,586 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-03 15:51:42,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:51:42,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-03 15:51:42,627 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-03 15:51:42,655 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-03 15:51:45,426 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-03 15:51:45,426 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-03 15:51:45,454 INFO L263 TraceCheckSpWp]: Trace formula consists of 1313 conjuncts, 210 conjunts are in the unsatisfiable core [2022-10-03 15:51:45,724 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-03 15:51:46,136 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 15 treesize of output 11 [2022-10-03 15:51:46,306 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:51:46,307 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 25 treesize of output 24 [2022-10-03 15:51:46,503 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:51:46,504 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:51:46,505 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:51:46,506 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 34 [2022-10-03 15:51:46,727 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:51:46,728 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 21 [2022-10-03 15:51:46,857 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 15:51:46,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:51:46,865 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 36 [2022-10-03 15:51:47,828 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 39 treesize of output 23 [2022-10-03 15:51:48,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-03 15:51:48,020 INFO L356 Elim1Store]: treesize reduction 14, result has 17.6 percent of original size [2022-10-03 15:51:48,020 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 35 treesize of output 21 [2022-10-03 15:52:00,494 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 10 [2022-10-03 15:52:00,499 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-03 15:52:00,500 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 26 treesize of output 10 [2022-10-03 15:52:00,592 INFO L134 CoverageAnalysis]: Checked inductivity of 120047 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 120047 trivial. 0 not checked. [2022-10-03 15:52:00,592 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-03 15:52:00,593 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1596515289] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-03 15:52:00,593 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-03 15:52:00,595 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [57] imperfect sequences [7] total 62 [2022-10-03 15:52:00,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [944902269] [2022-10-03 15:52:00,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-03 15:52:00,599 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 57 states [2022-10-03 15:52:00,600 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-03 15:52:00,601 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 57 interpolants. [2022-10-03 15:52:00,604 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=217, Invalid=3565, Unknown=0, NotChecked=0, Total=3782 [2022-10-03 15:52:00,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:52:00,607 INFO L495 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-10-03 15:52:00,608 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 57 states, 57 states have (on average 20.210526315789473) internal successors, (1152), 57 states have internal predecessors, (1152), 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 15:52:00,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:52:00,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-10-03 15:52:00,608 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2022-10-03 15:52:00,609 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:52:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-03 15:52:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-03 15:52:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-03 15:52:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 93 states. [2022-10-03 15:52:19,553 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-03 15:52:19,731 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-03 15:52:19,732 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT] === [2022-10-03 15:52:19,732 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-03 15:52:19,733 INFO L85 PathProgramCache]: Analyzing trace with hash -509764618, now seen corresponding path program 1 times [2022-10-03 15:52:19,734 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-03 15:52:19,734 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [490345797] [2022-10-03 15:52:19,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-03 15:52:19,734 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-03 15:52:25,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat