/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons.wvr.bpl
--------------------------------------------------------------------------------
This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a
[2022-02-19 22:55:31,825 INFO L177 SettingsManager]: Resetting all preferences to default values...
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[2022-02-19 22:55:31,894 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values
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[2022-02-19 22:55:31,914 INFO L188 SettingsManager]: Finished resetting all preferences to default values...
[2022-02-19 22:55:31,917 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-wrwc.epf
[2022-02-19 22:55:31,947 INFO L113 SettingsManager]: Loading preferences was successful
[2022-02-19 22:55:31,947 INFO L115 SettingsManager]: Preferences different from defaults after loading the file:
[2022-02-19 22:55:31,947 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults:
[2022-02-19 22:55:31,947 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR;
[2022-02-19 22:55:31,948 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults:
[2022-02-19 22:55:31,948 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS
[2022-02-19 22:55:31,948 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults:
[2022-02-19 22:55:31,948 INFO L138 SettingsManager]: * Create parallel compositions if possible=false
[2022-02-19 22:55:31,949 INFO L138 SettingsManager]: * Use SBE=true
[2022-02-19 22:55:31,949 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults:
[2022-02-19 22:55:31,949 INFO L138 SettingsManager]: * sizeof long=4
[2022-02-19 22:55:31,949 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true
[2022-02-19 22:55:31,949 INFO L138 SettingsManager]: * sizeof POINTER=4
[2022-02-19 22:55:31,949 INFO L138 SettingsManager]: * Check division by zero=IGNORE
[2022-02-19 22:55:31,949 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE
[2022-02-19 22:55:31,949 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE
[2022-02-19 22:55:31,949 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE
[2022-02-19 22:55:31,950 INFO L138 SettingsManager]: * sizeof long double=12
[2022-02-19 22:55:31,950 INFO L138 SettingsManager]: * Check if freed pointer was valid=false
[2022-02-19 22:55:31,950 INFO L138 SettingsManager]: * Use constant arrays=true
[2022-02-19 22:55:31,950 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE
[2022-02-19 22:55:31,950 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults:
[2022-02-19 22:55:31,950 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements
[2022-02-19 22:55:31,950 INFO L138 SettingsManager]: * To the following directory=./dump/
[2022-02-19 22:55:31,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode
[2022-02-19 22:55:31,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-19 22:55:31,951 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults:
[2022-02-19 22:55:31,951 INFO L138 SettingsManager]: * Construct finite automaton lazily=true
[2022-02-19 22:55:31,951 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP
[2022-02-19 22:55:31,951 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles
[2022-02-19 22:55:31,951 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL
[2022-02-19 22:55:31,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in
[2022-02-19 22:55:31,951 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF
[2022-02-19 22:55:31,951 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA
[2022-02-19 22:55:31,952 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true
[2022-02-19 22:55:31,952 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS
[2022-02-19 22:55:31,952 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false
[2022-02-19 22:55:31,952 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode
WARNING: An illegal reflective access operation has occurred
WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int)
WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1
WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations
WARNING: All illegal access operations will be denied in a future release
[2022-02-19 22:55:32,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp
[2022-02-19 22:55:32,153 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized
[2022-02-19 22:55:32,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected.
[2022-02-19 22:55:32,156 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser...
[2022-02-19 22:55:32,158 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized
[2022-02-19 22:55:32,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons.wvr.bpl
[2022-02-19 22:55:32,159 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/prod-cons.wvr.bpl'
[2022-02-19 22:55:32,177 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] #######################
[2022-02-19 22:55:32,178 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements.
[2022-02-19 22:55:32,179 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner----------------------------
[2022-02-19 22:55:32,180 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner...
[2022-02-19 22:55:32,180 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized
[2022-02-19 22:55:32,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/1) ...
[2022-02-19 22:55:32,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/1) ...
[2022-02-19 22:55:32,199 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0
[2022-02-19 22:55:32,200 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner----------------------------
[2022-02-19 22:55:32,201 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor----------------------------
[2022-02-19 22:55:32,201 INFO L271 PluginConnector]: Initializing Boogie Preprocessor...
[2022-02-19 22:55:32,202 INFO L275 PluginConnector]: Boogie Preprocessor initialized
[2022-02-19 22:55:32,206 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/1) ...
[2022-02-19 22:55:32,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/1) ...
[2022-02-19 22:55:32,207 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/1) ...
[2022-02-19 22:55:32,207 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/1) ...
[2022-02-19 22:55:32,209 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/1) ...
[2022-02-19 22:55:32,211 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/1) ...
[2022-02-19 22:55:32,211 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/1) ...
[2022-02-19 22:55:32,212 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor----------------------------
[2022-02-19 22:55:32,213 INFO L113 PluginConnector]: ------------------------RCFGBuilder----------------------------
[2022-02-19 22:55:32,213 INFO L271 PluginConnector]: Initializing RCFGBuilder...
[2022-02-19 22:55:32,213 INFO L275 PluginConnector]: RCFGBuilder initialized
[2022-02-19 22:55:32,214 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/1) ...
[2022-02-19 22:55:32,218 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000
[2022-02-19 22:55:32,226 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 22:55:32,236 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)
[2022-02-19 22:55:32,261 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
[2022-02-19 22:55:32,270 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration
[2022-02-19 22:55:32,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread1
[2022-02-19 22:55:32,270 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1
[2022-02-19 22:55:32,270 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration
[2022-02-19 22:55:32,270 INFO L130 BoogieDeclarations]: Found specification of procedure thread2
[2022-02-19 22:55:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2
[2022-02-19 22:55:32,271 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration
[2022-02-19 22:55:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start
[2022-02-19 22:55:32,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start
[2022-02-19 22:55:32,271 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration
[2022-02-19 22:55:32,271 INFO L130 BoogieDeclarations]: Found specification of procedure thread3
[2022-02-19 22:55:32,272 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3
[2022-02-19 22:55:32,272 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement
[2022-02-19 22:55:32,304 INFO L234 CfgBuilder]: Building ICFG
[2022-02-19 22:55:32,307 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation
[2022-02-19 22:55:32,375 INFO L275 CfgBuilder]: Performing block encoding
[2022-02-19 22:55:32,384 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start)
[2022-02-19 22:55:32,384 INFO L299 CfgBuilder]: Removed 0 assume(true) statements.
[2022-02-19 22:55:32,385 INFO L202 PluginConnector]: Adding new model prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:55:32 BoogieIcfgContainer
[2022-02-19 22:55:32,385 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder----------------------------
[2022-02-19 22:55:32,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction----------------------------
[2022-02-19 22:55:32,386 INFO L271 PluginConnector]: Initializing TraceAbstraction...
[2022-02-19 22:55:32,391 INFO L275 PluginConnector]: TraceAbstraction initialized
[2022-02-19 22:55:32,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:55:32" (1/2) ...
[2022-02-19 22:55:32,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f1fca2e and model type prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:55:32, skipping insertion in model container
[2022-02-19 22:55:32,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:55:32" (2/2) ...
[2022-02-19 22:55:32,392 INFO L111 eAbstractionObserver]: Analyzing ICFG prod-cons.wvr.bpl
[2022-02-19 22:55:32,395 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program
[2022-02-19 22:55:32,395 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION
[2022-02-19 22:55:32,395 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations.
[2022-02-19 22:55:32,395 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances.
[2022-02-19 22:55:32,417 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions.
[2022-02-19 22:55:32,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000
[2022-02-19 22:55:32,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 22:55:32,461 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)
[2022-02-19 22:55:32,475 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
[2022-02-19 22:55:32,502 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ========
[2022-02-19 22:55:32,507 INFO L339 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, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=false
[2022-02-19 22:55:32,507 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations.
[2022-02-19 22:55:33,137 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1892 transitions and produced 891 states.
[2022-02-19 22:55:33,139 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-19 22:55:33,142 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 22:55:33,143 INFO L85 PathProgramCache]: Analyzing trace with hash -1650200683, now seen corresponding path program 1 times
[2022-02-19 22:55:33,148 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 22:55:33,148 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1717164222]
[2022-02-19 22:55:33,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 22:55:33,149 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 22:55:33,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 22:55:33,374 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 338 trivial. 0 not checked.
[2022-02-19 22:55:33,375 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 22:55:33,375 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1717164222]
[2022-02-19 22:55:33,376 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1717164222] provided 1 perfect and 0 imperfect interpolant sequences
[2022-02-19 22:55:33,376 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences.
[2022-02-19 22:55:33,376 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3
[2022-02-19 22:55:33,384 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1614031291]
[2022-02-19 22:55:33,385 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton
[2022-02-19 22:55:33,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states
[2022-02-19 22:55:33,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 22:55:33,469 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants.
[2022-02-19 22:55:33,470 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6
[2022-02-19 22:55:33,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 22:55:33,474 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 22:55:33,488 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.333333333333334) internal successors, (25), 3 states have internal predecessors, (25), 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)
[2022-02-19 22:55:33,488 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 22:55:33,732 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 487 transitions and produced 379 states.
[2022-02-19 22:55:33,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 22:55:33,733 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0
[2022-02-19 22:55:33,734 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-19 22:55:33,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 22:55:33,735 INFO L85 PathProgramCache]: Analyzing trace with hash -1255744679, now seen corresponding path program 2 times
[2022-02-19 22:55:33,735 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 22:55:33,736 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1989660055]
[2022-02-19 22:55:33,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 22:55:33,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 22:55:33,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 22:55:35,140 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 21 proven. 317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:55:35,140 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 22:55:35,140 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1989660055]
[2022-02-19 22:55:35,141 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1989660055] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 22:55:35,141 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [765804113]
[2022-02-19 22:55:35,141 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1
[2022-02-19 22:55:35,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 22:55:35,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 22:55:35,143 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)
[2022-02-19 22:55:35,144 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process
[2022-02-19 22:55:35,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s)
[2022-02-19 22:55:35,201 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 22:55:35,203 INFO L263 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 58 conjunts are in the unsatisfiable core
[2022-02-19 22:55:35,208 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 22:55:38,040 INFO L353 Elim1Store]: treesize reduction 170, result has 0.6 percent of original size
[2022-02-19 22:55:38,041 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 6 select indices, 6 select index equivalence classes, 0 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 74 treesize of output 30
[2022-02-19 22:55:38,150 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 21 proven. 317 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:55:38,151 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 22:55:40,506 INFO L353 Elim1Store]: treesize reduction 400, result has 46.6 percent of original size
[2022-02-19 22:55:40,523 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 12 select indices, 12 select index equivalence classes, 0 disjoint index pairs (out of 66 index pairs), introduced 12 new quantified variables, introduced 66 case distinctions, treesize of input 79 treesize of output 383
[2022-02-19 22:55:51,769 INFO L134 CoverageAnalysis]: Checked inductivity of 338 backedges. 37 proven. 301 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:55:51,769 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [765804113] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 22:55:51,769 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 22:55:51,769 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [38, 38, 38] total 107
[2022-02-19 22:55:51,770 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1185495282]
[2022-02-19 22:55:51,770 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 22:55:51,771 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 107 states
[2022-02-19 22:55:51,771 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 22:55:51,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 107 interpolants.
[2022-02-19 22:55:51,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1071, Invalid=10271, Unknown=0, NotChecked=0, Total=11342
[2022-02-19 22:55:51,788 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 22:55:51,788 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 22:55:51,789 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 107 states, 107 states have (on average 2.0373831775700935) internal successors, (218), 107 states have internal predecessors, (218), 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)
[2022-02-19 22:55:51,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 22:55:51,789 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 22:55:57,152 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1449 transitions and produced 734 states.
[2022-02-19 22:55:57,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 22:55:57,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states.
[2022-02-19 22:55:57,188 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0
[2022-02-19 22:55:57,367 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1
[2022-02-19 22:55:57,368 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-19 22:55:57,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 22:55:57,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1310677827, now seen corresponding path program 3 times
[2022-02-19 22:55:57,369 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 22:55:57,369 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [347827233]
[2022-02-19 22:55:57,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 22:55:57,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 22:55:57,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 22:55:58,556 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 21 proven. 401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:55:58,557 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 22:55:58,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [347827233]
[2022-02-19 22:55:58,557 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [347827233] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 22:55:58,557 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1454330450]
[2022-02-19 22:55:58,557 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2
[2022-02-19 22:55:58,558 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 22:55:58,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 22:55:58,563 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)
[2022-02-19 22:55:58,564 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process
[2022-02-19 22:55:58,610 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 16 check-sat command(s)
[2022-02-19 22:55:58,611 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 22:55:58,612 INFO L263 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 66 conjunts are in the unsatisfiable core
[2022-02-19 22:55:58,615 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 22:56:01,825 INFO L353 Elim1Store]: treesize reduction 240, result has 0.4 percent of original size
[2022-02-19 22:56:01,826 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 86 treesize of output 34
[2022-02-19 22:56:01,947 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 21 proven. 401 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:56:01,947 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 22:56:05,106 INFO L353 Elim1Store]: treesize reduction 564, result has 45.8 percent of original size
[2022-02-19 22:56:05,107 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 14 select indices, 14 select index equivalence classes, 0 disjoint index pairs (out of 91 index pairs), introduced 14 new quantified variables, introduced 91 case distinctions, treesize of input 92 treesize of output 516
[2022-02-19 22:57:08,598 INFO L134 CoverageAnalysis]: Checked inductivity of 422 backedges. 45 proven. 377 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:57:08,599 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1454330450] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 22:57:08,599 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 22:57:08,599 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [42, 42, 42] total 119
[2022-02-19 22:57:08,599 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112262053]
[2022-02-19 22:57:08,599 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 22:57:08,600 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 119 states
[2022-02-19 22:57:08,600 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 22:57:08,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants.
[2022-02-19 22:57:08,603 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1221, Invalid=12821, Unknown=0, NotChecked=0, Total=14042
[2022-02-19 22:57:08,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 22:57:08,604 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 22:57:08,604 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 119 states have (on average 2.042016806722689) internal successors, (243), 119 states have internal predecessors, (243), 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)
[2022-02-19 22:57:08,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 22:57:08,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states.
[2022-02-19 22:57:08,604 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 22:57:14,906 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1825 transitions and produced 882 states.
[2022-02-19 22:57:14,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 22:57:14,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states.
[2022-02-19 22:57:14,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states.
[2022-02-19 22:57:14,922 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0
[2022-02-19 22:57:15,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 22:57:15,114 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-19 22:57:15,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 22:57:15,115 INFO L85 PathProgramCache]: Analyzing trace with hash -1183175532, now seen corresponding path program 4 times
[2022-02-19 22:57:15,115 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 22:57:15,115 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1830359270]
[2022-02-19 22:57:15,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 22:57:15,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 22:57:15,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 22:57:16,355 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 21 proven. 472 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:57:16,355 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 22:57:16,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1830359270]
[2022-02-19 22:57:16,355 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1830359270] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 22:57:16,355 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [143015316]
[2022-02-19 22:57:16,355 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST
[2022-02-19 22:57:16,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 22:57:16,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 22:57:16,357 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)
[2022-02-19 22:57:16,373 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process
[2022-02-19 22:57:16,416 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s)
[2022-02-19 22:57:16,416 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 22:57:16,417 INFO L263 TraceCheckSpWp]: Trace formula consists of 242 conjuncts, 76 conjunts are in the unsatisfiable core
[2022-02-19 22:57:16,420 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 22:57:20,269 INFO L353 Elim1Store]: treesize reduction 336, result has 0.3 percent of original size
[2022-02-19 22:57:20,270 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 8 select indices, 8 select index equivalence classes, 0 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 102 treesize of output 38
[2022-02-19 22:57:20,412 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 21 proven. 472 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:57:20,412 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 22:57:24,090 INFO L353 Elim1Store]: treesize reduction 756, result has 45.3 percent of original size
[2022-02-19 22:57:24,091 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 16 select indices, 16 select index equivalence classes, 0 disjoint index pairs (out of 120 index pairs), introduced 16 new quantified variables, introduced 120 case distinctions, treesize of input 105 treesize of output 669
[2022-02-19 22:58:14,636 INFO L134 CoverageAnalysis]: Checked inductivity of 493 backedges. 56 proven. 437 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:58:14,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [143015316] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 22:58:14,636 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 22:58:14,636 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 46, 46] total 131
[2022-02-19 22:58:14,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450679890]
[2022-02-19 22:58:14,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 22:58:14,637 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 131 states
[2022-02-19 22:58:14,637 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 22:58:14,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants.
[2022-02-19 22:58:14,640 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1392, Invalid=15638, Unknown=0, NotChecked=0, Total=17030
[2022-02-19 22:58:14,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 22:58:14,641 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 22:58:14,641 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 131 states, 131 states have (on average 1.9923664122137406) internal successors, (261), 131 states have internal predecessors, (261), 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)
[2022-02-19 22:58:14,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 22:58:14,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states.
[2022-02-19 22:58:14,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states.
[2022-02-19 22:58:14,641 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 22:58:22,196 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2201 transitions and produced 1030 states.
[2022-02-19 22:58:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 22:58:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states.
[2022-02-19 22:58:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states.
[2022-02-19 22:58:22,196 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states.
[2022-02-19 22:58:22,213 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0
[2022-02-19 22:58:22,404 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 22:58:22,405 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-19 22:58:22,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 22:58:22,405 INFO L85 PathProgramCache]: Analyzing trace with hash -1793000227, now seen corresponding path program 5 times
[2022-02-19 22:58:22,406 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 22:58:22,406 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [496799727]
[2022-02-19 22:58:22,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 22:58:22,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 22:58:22,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 22:58:24,164 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 21 proven. 549 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:58:24,164 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 22:58:24,164 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [496799727]
[2022-02-19 22:58:24,164 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [496799727] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 22:58:24,165 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [744322043]
[2022-02-19 22:58:24,165 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1
[2022-02-19 22:58:24,165 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 22:58:24,165 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 22:58:24,167 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)
[2022-02-19 22:58:24,168 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process
[2022-02-19 22:58:24,229 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 18 check-sat command(s)
[2022-02-19 22:58:24,229 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 22:58:24,231 INFO L263 TraceCheckSpWp]: Trace formula consists of 258 conjuncts, 82 conjunts are in the unsatisfiable core
[2022-02-19 22:58:24,233 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 22:58:28,907 INFO L353 Elim1Store]: treesize reduction 416, result has 0.2 percent of original size
[2022-02-19 22:58:28,908 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 110 treesize of output 42
[2022-02-19 22:58:29,047 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 21 proven. 549 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 22:58:29,048 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 22:58:34,350 INFO L353 Elim1Store]: treesize reduction 976, result has 44.8 percent of original size
[2022-02-19 22:58:34,351 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 18 select indices, 18 select index equivalence classes, 0 disjoint index pairs (out of 153 index pairs), introduced 18 new quantified variables, introduced 153 case distinctions, treesize of input 118 treesize of output 842
[2022-02-19 23:00:38,856 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 70 proven. 500 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 23:00:38,857 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [744322043] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 23:00:38,857 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 23:00:38,857 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [50, 50, 50] total 143
[2022-02-19 23:00:38,857 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [937264061]
[2022-02-19 23:00:38,857 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 23:00:38,857 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 143 states
[2022-02-19 23:00:38,857 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 23:00:38,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants.
[2022-02-19 23:00:38,861 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1582, Invalid=18724, Unknown=0, NotChecked=0, Total=20306
[2022-02-19 23:00:38,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 23:00:38,861 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 23:00:38,862 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 143 states have (on average 2.0) internal successors, (286), 143 states have internal predecessors, (286), 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)
[2022-02-19 23:00:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 23:00:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states.
[2022-02-19 23:00:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states.
[2022-02-19 23:00:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states.
[2022-02-19 23:00:38,862 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 23:00:48,915 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2577 transitions and produced 1178 states.
[2022-02-19 23:00:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 23:00:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states.
[2022-02-19 23:00:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states.
[2022-02-19 23:00:48,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states.
[2022-02-19 23:00:48,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states.
[2022-02-19 23:00:48,934 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0
[2022-02-19 23:00:49,134 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 23:00:49,135 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-19 23:00:49,136 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 23:00:49,136 INFO L85 PathProgramCache]: Analyzing trace with hash -2105624716, now seen corresponding path program 6 times
[2022-02-19 23:00:49,136 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 23:00:49,136 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1745343927]
[2022-02-19 23:00:49,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 23:00:49,136 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 23:00:49,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 23:00:51,125 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 21 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 23:00:51,125 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 23:00:51,125 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1745343927]
[2022-02-19 23:00:51,126 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1745343927] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 23:00:51,126 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1628417998]
[2022-02-19 23:00:51,126 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE
[2022-02-19 23:00:51,126 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 23:00:51,126 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 23:00:51,128 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)
[2022-02-19 23:00:51,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process
[2022-02-19 23:00:51,184 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 19 check-sat command(s)
[2022-02-19 23:00:51,184 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat
[2022-02-19 23:00:51,187 INFO L263 TraceCheckSpWp]: Trace formula consists of 274 conjuncts, 90 conjunts are in the unsatisfiable core
[2022-02-19 23:00:51,192 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 23:00:56,115 INFO L353 Elim1Store]: treesize reduction 522, result has 0.2 percent of original size
[2022-02-19 23:00:56,115 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 10 select indices, 10 select index equivalence classes, 0 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 122 treesize of output 46
[2022-02-19 23:00:56,225 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 21 proven. 632 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 23:00:56,226 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 23:01:03,498 INFO L353 Elim1Store]: treesize reduction 1224, result has 44.5 percent of original size
[2022-02-19 23:01:03,499 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 20 select indices, 20 select index equivalence classes, 0 disjoint index pairs (out of 190 index pairs), introduced 20 new quantified variables, introduced 190 case distinctions, treesize of input 131 treesize of output 1035
[2022-02-19 23:04:54,733 INFO L134 CoverageAnalysis]: Checked inductivity of 653 backedges. 87 proven. 566 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 23:04:54,733 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1628417998] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 23:04:54,733 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 23:04:54,733 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [54, 54, 54] total 155
[2022-02-19 23:04:54,734 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [789314959]
[2022-02-19 23:04:54,734 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 23:04:54,734 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 155 states
[2022-02-19 23:04:54,734 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 23:04:54,735 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants.
[2022-02-19 23:04:54,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1791, Invalid=22079, Unknown=0, NotChecked=0, Total=23870
[2022-02-19 23:04:54,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 23:04:54,736 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 23:04:54,736 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 1.9161290322580644) internal successors, (297), 155 states have internal predecessors, (297), 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)
[2022-02-19 23:04:54,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 23:04:54,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states.
[2022-02-19 23:04:54,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states.
[2022-02-19 23:04:54,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states.
[2022-02-19 23:04:54,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states.
[2022-02-19 23:04:54,737 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
[2022-02-19 23:05:05,456 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2953 transitions and produced 1326 states.
[2022-02-19 23:05:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states.
[2022-02-19 23:05:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states.
[2022-02-19 23:05:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 71 states.
[2022-02-19 23:05:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 79 states.
[2022-02-19 23:05:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 87 states.
[2022-02-19 23:05:05,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states.
[2022-02-19 23:05:05,474 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0
[2022-02-19 23:05:05,673 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 23:05:05,674 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] ===
[2022-02-19 23:05:05,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier
[2022-02-19 23:05:05,674 INFO L85 PathProgramCache]: Analyzing trace with hash 190192893, now seen corresponding path program 7 times
[2022-02-19 23:05:05,674 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL
[2022-02-19 23:05:05,674 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727075153]
[2022-02-19 23:05:05,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY
[2022-02-19 23:05:05,675 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms
[2022-02-19 23:05:05,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 23:05:07,695 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 21 proven. 721 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 23:05:07,695 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace
[2022-02-19 23:05:07,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727075153]
[2022-02-19 23:05:07,695 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727075153] provided 0 perfect and 1 imperfect interpolant sequences
[2022-02-19 23:05:07,695 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1741283976]
[2022-02-19 23:05:07,695 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY
[2022-02-19 23:05:07,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 23:05:07,695 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3
[2022-02-19 23:05:07,698 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)
[2022-02-19 23:05:07,698 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process
[2022-02-19 23:05:07,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat
[2022-02-19 23:05:07,746 INFO L263 TraceCheckSpWp]: Trace formula consists of 290 conjuncts, 100 conjunts are in the unsatisfiable core
[2022-02-19 23:05:07,748 INFO L286 TraceCheckSpWp]: Computing forward predicates...
[2022-02-19 23:05:13,224 INFO L353 Elim1Store]: treesize reduction 660, result has 0.2 percent of original size
[2022-02-19 23:05:13,226 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 0 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 55 case distinctions, treesize of input 138 treesize of output 50
[2022-02-19 23:05:13,352 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 21 proven. 721 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 23:05:13,352 INFO L328 TraceCheckSpWp]: Computing backward predicates...
[2022-02-19 23:05:22,757 INFO L353 Elim1Store]: treesize reduction 1500, result has 44.2 percent of original size
[2022-02-19 23:05:22,758 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 22 select indices, 22 select index equivalence classes, 0 disjoint index pairs (out of 231 index pairs), introduced 22 new quantified variables, introduced 231 case distinctions, treesize of input 144 treesize of output 1248
[2022-02-19 23:09:52,823 INFO L134 CoverageAnalysis]: Checked inductivity of 742 backedges. 107 proven. 635 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked.
[2022-02-19 23:09:52,824 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1741283976] provided 0 perfect and 2 imperfect interpolant sequences
[2022-02-19 23:09:52,824 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences.
[2022-02-19 23:09:52,824 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58, 58] total 167
[2022-02-19 23:09:52,824 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [352812215]
[2022-02-19 23:09:52,824 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton
[2022-02-19 23:09:52,825 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 167 states
[2022-02-19 23:09:52,825 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL
[2022-02-19 23:09:52,826 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants.
[2022-02-19 23:09:52,827 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2021, Invalid=25701, Unknown=0, NotChecked=0, Total=27722
[2022-02-19 23:09:52,827 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states.
[2022-02-19 23:09:52,827 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states
[2022-02-19 23:09:52,827 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 167 states have (on average 1.8862275449101797) internal successors, (315), 167 states have internal predecessors, (315), 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)
[2022-02-19 23:09:52,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states.
[2022-02-19 23:09:52,827 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 63 states.
[2022-02-19 23:09:52,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 71 states.
[2022-02-19 23:09:52,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 79 states.
[2022-02-19 23:09:52,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 87 states.
[2022-02-19 23:09:52,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 96 states.
[2022-02-19 23:09:52,828 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states.
Received shutdown request...
[2022-02-19 23:09:57,617 WARN L244 SmtUtils]: Removed 20 from assertion stack
[2022-02-19 23:09:57,622 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
[2022-02-19 23:09:57,622 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end
[2022-02-19 23:09:57,626 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
[2022-02-19 23:09:57,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0
[2022-02-19 23:09:57,817 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true
[2022-02-19 23:09:57,818 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 124 for 111ms..
[2022-02-19 23:09:57,820 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining)
[2022-02-19 23:09:57,820 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining)
[2022-02-19 23:09:57,820 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining)
[2022-02-19 23:09:57,820 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining)
[2022-02-19 23:09:57,825 INFO L732 BasicCegarLoop]: Path program histogram: [7]
[2022-02-19 23:09:57,827 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances
[2022-02-19 23:09:57,827 INFO L180 ceAbstractionStarter]: Computing trace abstraction results
[2022-02-19 23:09:57,828 INFO L202 PluginConnector]: Adding new model prod-cons.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:09:57 BasicIcfg
[2022-02-19 23:09:57,828 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction----------------------------
[2022-02-19 23:09:57,828 INFO L158 Benchmark]: Toolchain (without parser) took 865650.14ms. Allocated memory was 186.6MB in the beginning and 811.6MB in the end (delta: 625.0MB). Free memory was 146.2MB in the beginning and 540.2MB in the end (delta: -394.0MB). Peak memory consumption was 232.0MB. Max. memory is 8.0GB.
[2022-02-19 23:09:57,829 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 186.6MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 8.0GB.
[2022-02-19 23:09:57,829 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.19ms. Allocated memory is still 186.6MB. Free memory was 146.1MB in the beginning and 144.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-19 23:09:57,829 INFO L158 Benchmark]: Boogie Preprocessor took 10.42ms. Allocated memory is still 186.6MB. Free memory was 144.5MB in the beginning and 143.6MB in the end (delta: 936.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
[2022-02-19 23:09:57,829 INFO L158 Benchmark]: RCFGBuilder took 172.20ms. Allocated memory is still 186.6MB. Free memory was 143.6MB in the beginning and 134.4MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
[2022-02-19 23:09:57,829 INFO L158 Benchmark]: TraceAbstraction took 865442.03ms. Allocated memory was 186.6MB in the beginning and 811.6MB in the end (delta: 625.0MB). Free memory was 133.9MB in the beginning and 540.2MB in the end (delta: -406.3MB). Peak memory consumption was 219.4MB. Max. memory is 8.0GB.
[2022-02-19 23:09:57,830 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] #######################
--- Results ---
* Results from de.uni_freiburg.informatik.ultimate.core:
- StatisticsResult: Toolchain Benchmarks
Benchmark results are:
* Boogie PL CUP Parser took 0.12ms. Allocated memory is still 186.6MB. Free memory is still 147.3MB. There was no memory consumed. Max. memory is 8.0GB.
* Boogie Procedure Inliner took 21.19ms. Allocated memory is still 186.6MB. Free memory was 146.1MB in the beginning and 144.6MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* Boogie Preprocessor took 10.42ms. Allocated memory is still 186.6MB. Free memory was 144.5MB in the beginning and 143.6MB in the end (delta: 936.9kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB.
* RCFGBuilder took 172.20ms. Allocated memory is still 186.6MB. Free memory was 143.6MB in the beginning and 134.4MB in the end (delta: 9.2MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB.
* TraceAbstraction took 865442.03ms. Allocated memory was 186.6MB in the beginning and 811.6MB in the end (delta: 625.0MB). Free memory was 133.9MB in the beginning and 540.2MB in the end (delta: -406.3MB). Peak memory consumption was 219.4MB. Max. memory is 8.0GB.
* Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction:
- StatisticsResult: Independence relation benchmarks
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: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.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] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.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] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.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] , SemanticConditionEliminator.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: UnionIndependenceRelation.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] , UnionIndependenceRelation.Statistics on underlying relations: [ 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] , SemanticIndependenceRelation.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] , SemanticIndependenceRelation.Query Time [ms]: [ 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, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0
- StatisticsResult: ErrorAutomatonStatistics
NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0
- TimeoutResultAtElement [Line: 64]: Timeout (TraceAbstraction)
Unable to prove that assertion always holds Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 124 for 111ms..
- TimeoutResultAtElement [Line: 58]: Timeout (TraceAbstraction)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 124 for 111ms..
- TimeoutResultAtElement [Line: 57]: Timeout (TraceAbstraction)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 124 for 111ms..
- TimeoutResultAtElement [Line: 57]: Timeout (TraceAbstraction)
Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateUnifier was unifying predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 124 for 111ms..
- StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances
CFG has 7 procedures, 45 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 865.4s, OverallIterations: 7, TraceHistogramMax: 0, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 45.6s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 431, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 817.4s InterpolantComputationTime, 1237 NumberOfCodeBlocks, 1237 NumberOfCodeBlocksAsserted, 64 NumberOfCheckSat, 1797 ConstructedInterpolants, 0 QuantifiedInterpolants, 75392 SizeOfPredicates, 113 NumberOfNonLiveVariables, 1492 ConjunctsInSsa, 472 ConjunctsInUnsatCore, 19 InterpolantComputations, 1 PerfectInterpolantSequences, 992/9992 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available
RESULT: Ultimate could not prove your program: Timeout
Completed graceful shutdown