/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf -i ../../../trunk/examples/svcomp/array-fpi/eqn5.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-10 04:03:20,040 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-10 04:03:20,042 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-10 04:03:20,103 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-10 04:03:20,138 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-10 04:03:20,142 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-10 04:03:20,143 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-10 04:03:20,144 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Bitvector.epf [2022-01-10 04:03:20,164 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-10 04:03:20,164 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-10 04:03:20,165 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-10 04:03:20,165 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-10 04:03:20,165 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-10 04:03:20,165 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-10 04:03:20,166 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-10 04:03:20,166 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-10 04:03:20,166 INFO L138 SettingsManager]: * Use SBE=true [2022-01-10 04:03:20,166 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-10 04:03:20,166 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-10 04:03:20,166 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-10 04:03:20,166 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-10 04:03:20,166 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-10 04:03:20,166 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-10 04:03:20,166 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-10 04:03:20,167 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2022-01-10 04:03:20,167 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2022-01-10 04:03:20,167 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-10 04:03:20,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-10 04:03:20,169 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-10 04:03:20,169 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-10 04:03:20,169 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-10 04:03:20,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:03:20,170 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-10 04:03:20,170 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-10 04:03:20,170 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-10 04:03:20,170 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2022-01-10 04:03:20,170 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2022-01-10 04:03:20,170 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-10 04:03:20,171 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-10 04:03:20,171 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-10 04:03:20,171 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2022-01-10 04:03:20,171 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-10 04:03:20,383 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-10 04:03:20,405 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-10 04:03:20,407 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-10 04:03:20,408 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-10 04:03:20,408 INFO L275 PluginConnector]: CDTParser initialized [2022-01-10 04:03:20,409 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/eqn5.c [2022-01-10 04:03:20,460 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8df3d6c18/3afe53fe4e0b41a2bfcf41f1e5fafc65/FLAGe21e0ccf6 [2022-01-10 04:03:20,798 INFO L306 CDTParser]: Found 1 translation units. [2022-01-10 04:03:20,798 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/eqn5.c [2022-01-10 04:03:20,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8df3d6c18/3afe53fe4e0b41a2bfcf41f1e5fafc65/FLAGe21e0ccf6 [2022-01-10 04:03:20,816 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8df3d6c18/3afe53fe4e0b41a2bfcf41f1e5fafc65 [2022-01-10 04:03:20,818 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-10 04:03:20,819 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-10 04:03:20,820 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-10 04:03:20,820 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-10 04:03:20,822 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-10 04:03:20,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:03:20" (1/1) ... [2022-01-10 04:03:20,824 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3990fc2b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:20, skipping insertion in model container [2022-01-10 04:03:20,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.01 04:03:20" (1/1) ... [2022-01-10 04:03:20,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-10 04:03:20,844 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-10 04:03:20,966 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/eqn5.c[587,600] [2022-01-10 04:03:21,000 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:03:21,019 INFO L203 MainTranslator]: Completed pre-run [2022-01-10 04:03:21,032 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/eqn5.c[587,600] [2022-01-10 04:03:21,041 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-10 04:03:21,050 INFO L208 MainTranslator]: Completed translation [2022-01-10 04:03:21,052 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21 WrapperNode [2022-01-10 04:03:21,053 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-10 04:03:21,054 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-10 04:03:21,054 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-10 04:03:21,054 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-10 04:03:21,059 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (1/1) ... [2022-01-10 04:03:21,074 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (1/1) ... [2022-01-10 04:03:21,094 INFO L137 Inliner]: procedures = 18, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 78 [2022-01-10 04:03:21,094 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-10 04:03:21,095 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-10 04:03:21,095 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-10 04:03:21,095 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-10 04:03:21,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (1/1) ... [2022-01-10 04:03:21,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (1/1) ... [2022-01-10 04:03:21,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (1/1) ... [2022-01-10 04:03:21,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (1/1) ... [2022-01-10 04:03:21,111 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (1/1) ... [2022-01-10 04:03:21,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (1/1) ... [2022-01-10 04:03:21,118 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (1/1) ... [2022-01-10 04:03:21,120 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-10 04:03:21,120 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-10 04:03:21,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-10 04:03:21,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-10 04:03:21,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (1/1) ... [2022-01-10 04:03:21,126 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-10 04:03:21,134 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-10 04:03:21,144 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) [2022-01-10 04:03:21,147 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 [2022-01-10 04:03:21,167 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-10 04:03:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intINTTYPE1 [2022-01-10 04:03:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE8 [2022-01-10 04:03:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-10 04:03:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-10 04:03:21,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-10 04:03:21,168 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE8 [2022-01-10 04:03:21,212 INFO L234 CfgBuilder]: Building ICFG [2022-01-10 04:03:21,213 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-10 04:03:21,534 INFO L275 CfgBuilder]: Performing block encoding [2022-01-10 04:03:21,538 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-10 04:03:21,538 INFO L299 CfgBuilder]: Removed 3 assume(true) statements. [2022-01-10 04:03:21,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:03:21 BoogieIcfgContainer [2022-01-10 04:03:21,540 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-10 04:03:21,541 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-10 04:03:21,541 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-10 04:03:21,543 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-10 04:03:21,543 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.01 04:03:20" (1/3) ... [2022-01-10 04:03:21,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab62491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:03:21, skipping insertion in model container [2022-01-10 04:03:21,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.01 04:03:21" (2/3) ... [2022-01-10 04:03:21,544 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ab62491 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.01 04:03:21, skipping insertion in model container [2022-01-10 04:03:21,544 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.01 04:03:21" (3/3) ... [2022-01-10 04:03:21,545 INFO L111 eAbstractionObserver]: Analyzing ICFG eqn5.c [2022-01-10 04:03:21,554 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-10 04:03:21,554 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-10 04:03:21,622 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-10 04:03:21,626 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=PETRI_NET, 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 [2022-01-10 04:03:21,626 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-10 04:03:21,638 INFO L276 IsEmpty]: Start isEmpty. Operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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) [2022-01-10 04:03:21,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 04:03:21,642 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:21,642 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:21,643 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:21,646 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:21,647 INFO L85 PathProgramCache]: Analyzing trace with hash -1828546148, now seen corresponding path program 1 times [2022-01-10 04:03:21,654 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:21,655 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [775091113] [2022-01-10 04:03:21,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:03:21,655 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:21,656 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:21,669 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:21,725 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2022-01-10 04:03:21,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:03:21,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 1 conjunts are in the unsatisfiable core [2022-01-10 04:03:21,805 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:21,846 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:21,847 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:03:21,847 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:03:21,847 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [775091113] [2022-01-10 04:03:21,848 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [775091113] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:03:21,848 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:03:21,848 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-10 04:03:21,850 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636752681] [2022-01-10 04:03:21,851 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:03:21,853 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-10 04:03:21,854 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:03:21,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-10 04:03:21,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 04:03:21,875 INFO L87 Difference]: Start difference. First operand has 21 states, 19 states have (on average 1.5263157894736843) internal successors, (29), 20 states have internal predecessors, (29), 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) Second operand has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-01-10 04:03:21,884 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:03:21,885 INFO L93 Difference]: Finished difference Result 38 states and 52 transitions. [2022-01-10 04:03:21,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-10 04:03:21,886 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) Word has length 12 [2022-01-10 04:03:21,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:03:21,891 INFO L225 Difference]: With dead ends: 38 [2022-01-10 04:03:21,891 INFO L226 Difference]: Without dead ends: 17 [2022-01-10 04:03:21,893 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-10 04:03:21,895 INFO L933 BasicCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 24 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-10 04:03:21,896 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-10 04:03:21,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2022-01-10 04:03:21,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2022-01-10 04:03:21,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 16 states have (on average 1.1875) internal successors, (19), 16 states have internal predecessors, (19), 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) [2022-01-10 04:03:21,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2022-01-10 04:03:21,915 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 12 [2022-01-10 04:03:21,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:03:21,916 INFO L470 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2022-01-10 04:03:21,916 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 6.0) internal successors, (12), 2 states have internal predecessors, (12), 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) [2022-01-10 04:03:21,916 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2022-01-10 04:03:21,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-01-10 04:03:21,916 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:21,916 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:21,927 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2022-01-10 04:03:22,125 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:03:22,125 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:22,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:22,126 INFO L85 PathProgramCache]: Analyzing trace with hash -1148487778, now seen corresponding path program 1 times [2022-01-10 04:03:22,127 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:22,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [565714120] [2022-01-10 04:03:22,127 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:03:22,127 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:22,127 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:22,130 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:22,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2022-01-10 04:03:22,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:03:22,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 04:03:22,281 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:22,395 INFO L353 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-01-10 04:03:22,396 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 65 [2022-01-10 04:03:22,417 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:22,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:22,431 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-01-10 04:03:22,457 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:22,459 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:22,467 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-01-10 04:03:22,670 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:22,672 INFO L387 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 17 treesize of output 7 [2022-01-10 04:03:22,878 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 04:03:22,878 INFO L387 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 53 treesize of output 29 [2022-01-10 04:03:22,897 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:22,897 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:03:22,897 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:03:22,898 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [565714120] [2022-01-10 04:03:22,898 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [565714120] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:03:22,898 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:03:22,898 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-01-10 04:03:22,898 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852263821] [2022-01-10 04:03:22,899 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:03:22,900 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-01-10 04:03:22,900 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:03:22,900 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-01-10 04:03:22,901 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-01-10 04:03:22,901 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-01-10 04:03:23,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:03:23,244 INFO L93 Difference]: Finished difference Result 34 states and 38 transitions. [2022-01-10 04:03:23,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-01-10 04:03:23,244 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) Word has length 12 [2022-01-10 04:03:23,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:03:23,245 INFO L225 Difference]: With dead ends: 34 [2022-01-10 04:03:23,245 INFO L226 Difference]: Without dead ends: 32 [2022-01-10 04:03:23,245 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2022-01-10 04:03:23,246 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 12 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 04:03:23,247 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 56 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 04:03:23,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-01-10 04:03:23,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 23. [2022-01-10 04:03:23,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.2272727272727273) internal successors, (27), 22 states have internal predecessors, (27), 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) [2022-01-10 04:03:23,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2022-01-10 04:03:23,252 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 12 [2022-01-10 04:03:23,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:03:23,252 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2022-01-10 04:03:23,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.4) internal successors, (12), 5 states have internal predecessors, (12), 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) [2022-01-10 04:03:23,252 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2022-01-10 04:03:23,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 04:03:23,253 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:23,253 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:23,263 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2022-01-10 04:03:23,462 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:03:23,463 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:23,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:23,464 INFO L85 PathProgramCache]: Analyzing trace with hash 1755224028, now seen corresponding path program 1 times [2022-01-10 04:03:23,464 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:23,464 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2125461677] [2022-01-10 04:03:23,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:03:23,464 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:23,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:23,466 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:23,477 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2022-01-10 04:03:23,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:03:23,582 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-10 04:03:23,583 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:23,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:23,757 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-10 04:03:23,757 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:03:23,757 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2125461677] [2022-01-10 04:03:23,758 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2125461677] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-10 04:03:23,758 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-10 04:03:23,758 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-01-10 04:03:23,758 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1419732337] [2022-01-10 04:03:23,758 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-10 04:03:23,758 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-10 04:03:23,758 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:03:23,759 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-10 04:03:23,759 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2022-01-10 04:03:23,759 INFO L87 Difference]: Start difference. First operand 23 states and 27 transitions. Second operand has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2022-01-10 04:03:24,110 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:03:24,110 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2022-01-10 04:03:24,119 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-10 04:03:24,119 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) Word has length 14 [2022-01-10 04:03:24,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:03:24,120 INFO L225 Difference]: With dead ends: 42 [2022-01-10 04:03:24,120 INFO L226 Difference]: Without dead ends: 33 [2022-01-10 04:03:24,121 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-01-10 04:03:24,121 INFO L933 BasicCegarLoop]: 10 mSDtfsCounter, 68 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-10 04:03:24,122 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [68 Valid, 25 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-01-10 04:03:24,122 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-01-10 04:03:24,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 23. [2022-01-10 04:03:24,125 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 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) [2022-01-10 04:03:24,125 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 26 transitions. [2022-01-10 04:03:24,125 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 26 transitions. Word has length 14 [2022-01-10 04:03:24,125 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:03:24,125 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 26 transitions. [2022-01-10 04:03:24,126 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.0) internal successors, (14), 7 states have internal predecessors, (14), 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) [2022-01-10 04:03:24,126 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 26 transitions. [2022-01-10 04:03:24,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-10 04:03:24,127 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:24,127 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:24,139 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2022-01-10 04:03:24,327 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:03:24,328 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:24,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:24,328 INFO L85 PathProgramCache]: Analyzing trace with hash -1842440164, now seen corresponding path program 1 times [2022-01-10 04:03:24,329 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:24,329 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1056777714] [2022-01-10 04:03:24,329 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:03:24,329 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:24,329 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:24,330 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:24,331 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2022-01-10 04:03:24,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:03:24,427 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 10 conjunts are in the unsatisfiable core [2022-01-10 04:03:24,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:24,633 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:24,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:03:24,917 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:24,918 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:03:24,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1056777714] [2022-01-10 04:03:24,918 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1056777714] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:03:24,918 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:03:24,918 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 7] total 14 [2022-01-10 04:03:24,918 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337818679] [2022-01-10 04:03:24,918 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:03:24,919 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-01-10 04:03:24,919 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:03:24,920 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-01-10 04:03:24,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2022-01-10 04:03:24,922 INFO L87 Difference]: Start difference. First operand 23 states and 26 transitions. Second operand has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2022-01-10 04:03:26,055 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:03:26,055 INFO L93 Difference]: Finished difference Result 58 states and 67 transitions. [2022-01-10 04:03:26,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 04:03:26,056 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) Word has length 14 [2022-01-10 04:03:26,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:03:26,056 INFO L225 Difference]: With dead ends: 58 [2022-01-10 04:03:26,056 INFO L226 Difference]: Without dead ends: 49 [2022-01-10 04:03:26,057 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 103 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=200, Invalid=450, Unknown=0, NotChecked=0, Total=650 [2022-01-10 04:03:26,057 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 96 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 131 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 96 SdHoareTripleChecker+Valid, 51 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 131 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 04:03:26,058 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [96 Valid, 51 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 131 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 04:03:26,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2022-01-10 04:03:26,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 30. [2022-01-10 04:03:26,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 29 states have (on average 1.1724137931034482) internal successors, (34), 29 states have internal predecessors, (34), 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) [2022-01-10 04:03:26,062 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 34 transitions. [2022-01-10 04:03:26,062 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 34 transitions. Word has length 14 [2022-01-10 04:03:26,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:03:26,062 INFO L470 AbstractCegarLoop]: Abstraction has 30 states and 34 transitions. [2022-01-10 04:03:26,062 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 1.5714285714285714) internal successors, (22), 14 states have internal predecessors, (22), 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) [2022-01-10 04:03:26,063 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 34 transitions. [2022-01-10 04:03:26,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 04:03:26,063 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:26,063 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:26,077 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2022-01-10 04:03:26,276 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:03:26,276 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:26,277 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:26,277 INFO L85 PathProgramCache]: Analyzing trace with hash -1667884396, now seen corresponding path program 1 times [2022-01-10 04:03:26,278 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:26,278 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1619446143] [2022-01-10 04:03:26,278 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:03:26,279 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:26,279 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:26,280 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:26,281 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2022-01-10 04:03:26,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:03:26,386 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 9 conjunts are in the unsatisfiable core [2022-01-10 04:03:26,387 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:26,560 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:26,560 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:03:26,679 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:26,680 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:03:26,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1619446143] [2022-01-10 04:03:26,680 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1619446143] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:03:26,680 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:03:26,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 6] total 12 [2022-01-10 04:03:26,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2047890338] [2022-01-10 04:03:26,680 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:03:26,680 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 04:03:26,680 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:03:26,681 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 04:03:26,681 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-01-10 04:03:26,681 INFO L87 Difference]: Start difference. First operand 30 states and 34 transitions. Second operand has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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) [2022-01-10 04:03:27,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:03:27,190 INFO L93 Difference]: Finished difference Result 41 states and 45 transitions. [2022-01-10 04:03:27,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-01-10 04:03:27,198 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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) Word has length 16 [2022-01-10 04:03:27,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:03:27,199 INFO L225 Difference]: With dead ends: 41 [2022-01-10 04:03:27,199 INFO L226 Difference]: Without dead ends: 27 [2022-01-10 04:03:27,199 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=89, Invalid=217, Unknown=0, NotChecked=0, Total=306 [2022-01-10 04:03:27,200 INFO L933 BasicCegarLoop]: 9 mSDtfsCounter, 69 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 71 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 71 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-01-10 04:03:27,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [69 Valid, 31 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 71 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-01-10 04:03:27,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-01-10 04:03:27,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-01-10 04:03:27,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 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) [2022-01-10 04:03:27,204 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-01-10 04:03:27,204 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 16 [2022-01-10 04:03:27,204 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:03:27,204 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-01-10 04:03:27,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.3333333333333335) internal successors, (28), 12 states have internal predecessors, (28), 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) [2022-01-10 04:03:27,204 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-01-10 04:03:27,204 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-01-10 04:03:27,204 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:27,204 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:27,214 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2022-01-10 04:03:27,413 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:03:27,414 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:27,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:27,414 INFO L85 PathProgramCache]: Analyzing trace with hash 586911962, now seen corresponding path program 1 times [2022-01-10 04:03:27,414 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:27,414 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1887492475] [2022-01-10 04:03:27,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:03:27,415 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:27,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:27,418 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:27,419 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2022-01-10 04:03:27,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:03:27,725 INFO L263 TraceCheckSpWp]: Trace formula consists of 75 conjuncts, 17 conjunts are in the unsatisfiable core [2022-01-10 04:03:27,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:27,788 INFO L353 Elim1Store]: treesize reduction 40, result has 32.2 percent of original size [2022-01-10 04:03:27,788 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 50 treesize of output 65 [2022-01-10 04:03:27,809 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:27,810 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:27,816 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-01-10 04:03:27,823 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:27,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:27,829 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-01-10 04:03:27,858 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:27,859 INFO L387 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 19 treesize of output 9 [2022-01-10 04:03:27,932 INFO L387 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 20 [2022-01-10 04:03:27,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:27,938 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 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 15 treesize of output 9 [2022-01-10 04:03:27,965 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-01-10 04:03:27,992 INFO L387 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 25 [2022-01-10 04:03:28,073 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:28,074 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:28,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:28,075 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:28,076 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:28,077 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:28,079 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 04:03:28,079 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 43 [2022-01-10 04:03:28,162 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 04:03:28,162 INFO L387 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 53 treesize of output 29 [2022-01-10 04:03:28,177 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:28,177 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:03:29,561 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_109 (Array (_ BitVec 64) (_ BitVec 32)))) (= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_109) |c_ULTIMATE.start_main_~b~0#1.base|))) (concat (select .cse0 (bvadd (_ bv4 64) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|))) (_ bv1 64))) is different from false [2022-01-10 04:03:29,627 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 1 not checked. [2022-01-10 04:03:29,627 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:03:29,627 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1887492475] [2022-01-10 04:03:29,627 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1887492475] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:03:29,628 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:03:29,628 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 12 [2022-01-10 04:03:29,628 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2076451912] [2022-01-10 04:03:29,628 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:03:29,628 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-10 04:03:29,628 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:03:29,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-10 04:03:29,629 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=81, Unknown=1, NotChecked=18, Total=132 [2022-01-10 04:03:29,629 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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) [2022-01-10 04:03:30,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:03:30,769 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2022-01-10 04:03:30,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 04:03:30,778 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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) Word has length 16 [2022-01-10 04:03:30,778 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:03:30,778 INFO L225 Difference]: With dead ends: 45 [2022-01-10 04:03:30,778 INFO L226 Difference]: Without dead ends: 43 [2022-01-10 04:03:30,780 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 15 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=71, Invalid=172, Unknown=1, NotChecked=28, Total=272 [2022-01-10 04:03:30,782 INFO L933 BasicCegarLoop]: 17 mSDtfsCounter, 20 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 78 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 106 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 78 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 33 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-01-10 04:03:30,782 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 106 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 78 Invalid, 0 Unknown, 33 Unchecked, 0.9s Time] [2022-01-10 04:03:30,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2022-01-10 04:03:30,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 28. [2022-01-10 04:03:30,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 27 states have internal predecessors, (31), 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) [2022-01-10 04:03:30,786 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 31 transitions. [2022-01-10 04:03:30,786 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 31 transitions. Word has length 16 [2022-01-10 04:03:30,786 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:03:30,786 INFO L470 AbstractCegarLoop]: Abstraction has 28 states and 31 transitions. [2022-01-10 04:03:30,787 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.25) internal successors, (27), 12 states have internal predecessors, (27), 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) [2022-01-10 04:03:30,787 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 31 transitions. [2022-01-10 04:03:30,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-01-10 04:03:30,787 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:30,787 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:30,804 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2022-01-10 04:03:30,995 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:03:30,996 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:30,998 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:30,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1174519208, now seen corresponding path program 2 times [2022-01-10 04:03:30,999 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:30,999 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [293374212] [2022-01-10 04:03:30,999 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 04:03:30,999 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:30,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:31,000 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:31,001 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2022-01-10 04:03:31,169 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 04:03:31,169 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 04:03:31,178 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-10 04:03:31,179 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:31,477 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:31,477 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:03:31,855 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:31,855 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:03:31,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [293374212] [2022-01-10 04:03:31,855 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [293374212] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:03:31,856 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:03:31,856 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 9] total 19 [2022-01-10 04:03:31,856 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1506811523] [2022-01-10 04:03:31,856 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:03:31,856 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-01-10 04:03:31,856 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:03:31,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-01-10 04:03:31,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=94, Invalid=248, Unknown=0, NotChecked=0, Total=342 [2022-01-10 04:03:31,857 INFO L87 Difference]: Start difference. First operand 28 states and 31 transitions. Second operand has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 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) [2022-01-10 04:03:33,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:03:33,399 INFO L93 Difference]: Finished difference Result 81 states and 90 transitions. [2022-01-10 04:03:33,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-01-10 04:03:33,400 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 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) Word has length 18 [2022-01-10 04:03:33,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:03:33,401 INFO L225 Difference]: With dead ends: 81 [2022-01-10 04:03:33,401 INFO L226 Difference]: Without dead ends: 72 [2022-01-10 04:03:33,401 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 291 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=360, Invalid=1046, Unknown=0, NotChecked=0, Total=1406 [2022-01-10 04:03:33,402 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 208 mSDsluCounter, 44 mSDsCounter, 0 mSdLazyCounter, 179 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 208 SdHoareTripleChecker+Valid, 59 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 179 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-01-10 04:03:33,402 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [208 Valid, 59 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 179 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2022-01-10 04:03:33,403 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-01-10 04:03:33,406 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 38. [2022-01-10 04:03:33,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.135135135135135) internal successors, (42), 37 states have internal predecessors, (42), 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) [2022-01-10 04:03:33,407 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 42 transitions. [2022-01-10 04:03:33,407 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 42 transitions. Word has length 18 [2022-01-10 04:03:33,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:03:33,407 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 42 transitions. [2022-01-10 04:03:33,407 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 1.5789473684210527) internal successors, (30), 19 states have internal predecessors, (30), 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) [2022-01-10 04:03:33,407 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 42 transitions. [2022-01-10 04:03:33,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 04:03:33,408 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:33,408 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:33,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2022-01-10 04:03:33,608 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:03:33,609 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:33,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:33,609 INFO L85 PathProgramCache]: Analyzing trace with hash 798963152, now seen corresponding path program 1 times [2022-01-10 04:03:33,609 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:33,609 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [444488247] [2022-01-10 04:03:33,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-10 04:03:33,609 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:33,610 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:33,610 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:33,612 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Waiting until timeout for monitored process [2022-01-10 04:03:33,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-10 04:03:33,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 29 conjunts are in the unsatisfiable core [2022-01-10 04:03:33,906 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:33,934 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-01-10 04:03:33,958 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:33,960 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:33,961 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:33,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:33,962 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:33,963 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:33,964 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:03:33,965 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 6 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 48 treesize of output 37 [2022-01-10 04:03:34,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,067 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,070 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,071 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,072 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,072 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:03:34,076 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-10 04:03:34,077 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 51 treesize of output 63 [2022-01-10 04:03:34,199 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,200 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,201 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,202 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,205 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,206 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:03:34,207 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:34,211 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-10 04:03:34,211 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 99 treesize of output 75 [2022-01-10 04:03:34,613 INFO L353 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-01-10 04:03:34,613 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 109 treesize of output 57 [2022-01-10 04:03:34,640 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:34,640 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:03:39,586 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:39,586 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:03:39,586 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [444488247] [2022-01-10 04:03:39,586 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [444488247] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:03:39,586 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:03:39,586 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2022-01-10 04:03:39,586 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1812856266] [2022-01-10 04:03:39,587 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:03:39,587 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-10 04:03:39,587 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:03:39,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-10 04:03:39,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2022-01-10 04:03:39,587 INFO L87 Difference]: Start difference. First operand 38 states and 42 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 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) [2022-01-10 04:03:42,783 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:03:42,783 INFO L93 Difference]: Finished difference Result 47 states and 51 transitions. [2022-01-10 04:03:42,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-10 04:03:42,794 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 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) Word has length 20 [2022-01-10 04:03:42,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:03:42,794 INFO L225 Difference]: With dead ends: 47 [2022-01-10 04:03:42,794 INFO L226 Difference]: Without dead ends: 45 [2022-01-10 04:03:42,795 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=66, Invalid=240, Unknown=0, NotChecked=0, Total=306 [2022-01-10 04:03:42,795 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 12 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 25 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2022-01-10 04:03:42,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 66 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 45 Invalid, 0 Unknown, 25 Unchecked, 1.1s Time] [2022-01-10 04:03:42,796 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-01-10 04:03:42,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 42. [2022-01-10 04:03:42,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 41 states have (on average 1.1219512195121952) internal successors, (46), 41 states have internal predecessors, (46), 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) [2022-01-10 04:03:42,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 46 transitions. [2022-01-10 04:03:42,800 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 46 transitions. Word has length 20 [2022-01-10 04:03:42,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:03:42,800 INFO L470 AbstractCegarLoop]: Abstraction has 42 states and 46 transitions. [2022-01-10 04:03:42,800 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 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) [2022-01-10 04:03:42,801 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 46 transitions. [2022-01-10 04:03:42,801 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-01-10 04:03:42,801 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:42,801 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:42,817 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (9)] Forceful destruction successful, exit code 0 [2022-01-10 04:03:43,001 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:03:43,002 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:43,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:43,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1786143722, now seen corresponding path program 3 times [2022-01-10 04:03:43,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:43,002 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1531990686] [2022-01-10 04:03:43,002 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-10 04:03:43,002 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:43,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:43,004 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:43,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Waiting until timeout for monitored process [2022-01-10 04:03:43,375 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-10 04:03:43,376 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 04:03:43,390 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 20 conjunts are in the unsatisfiable core [2022-01-10 04:03:43,393 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:43,404 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-01-10 04:03:43,413 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,416 INFO L387 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 [2022-01-10 04:03:43,421 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,422 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,423 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-01-10 04:03:43,456 INFO L387 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 25 [2022-01-10 04:03:43,490 INFO L387 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 25 [2022-01-10 04:03:43,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,583 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,584 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,589 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,592 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 04:03:43,592 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 42 treesize of output 48 [2022-01-10 04:03:43,648 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,650 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,666 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,667 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:43,670 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 04:03:43,670 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 6 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 37 treesize of output 43 [2022-01-10 04:03:43,744 INFO L353 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-01-10 04:03:43,744 INFO L387 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 53 treesize of output 29 [2022-01-10 04:03:43,764 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 04:03:43,764 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:03:46,913 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_206 (Array (_ BitVec 64) (_ BitVec 32)))) (= (let ((.cse0 (select (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| v_ArrVal_206) |c_ULTIMATE.start_main_~b~0#1.base|))) (concat (select .cse0 (bvadd (_ bv4 64) |c_ULTIMATE.start_main_~b~0#1.offset|)) (select .cse0 |c_ULTIMATE.start_main_~b~0#1.offset|))) (_ bv1 64))) is different from false [2022-01-10 04:03:46,945 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 1 trivial. 3 not checked. [2022-01-10 04:03:46,945 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:03:46,945 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1531990686] [2022-01-10 04:03:46,945 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1531990686] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:03:46,945 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:03:46,945 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 15 [2022-01-10 04:03:46,946 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [975240527] [2022-01-10 04:03:46,946 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:03:46,946 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-01-10 04:03:46,946 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:03:46,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-01-10 04:03:46,947 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=135, Unknown=1, NotChecked=24, Total=210 [2022-01-10 04:03:46,947 INFO L87 Difference]: Start difference. First operand 42 states and 46 transitions. Second operand has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 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) [2022-01-10 04:03:50,649 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, BitVec], hasArrays=true, hasNonlinArith=false, quantifiers [] [2022-01-10 04:03:52,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:03:52,043 INFO L93 Difference]: Finished difference Result 72 states and 79 transitions. [2022-01-10 04:03:52,055 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-01-10 04:03:52,055 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 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) Word has length 20 [2022-01-10 04:03:52,056 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:03:52,056 INFO L225 Difference]: With dead ends: 72 [2022-01-10 04:03:52,056 INFO L226 Difference]: Without dead ends: 70 [2022-01-10 04:03:52,056 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 26 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 5.1s TimeCoverageRelationStatistics Valid=157, Invalid=496, Unknown=1, NotChecked=48, Total=702 [2022-01-10 04:03:52,057 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 64 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 22 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 64 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 67 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2022-01-10 04:03:52,057 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [64 Valid, 68 Invalid, 137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 47 Invalid, 1 Unknown, 67 Unchecked, 3.0s Time] [2022-01-10 04:03:52,058 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-01-10 04:03:52,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 47. [2022-01-10 04:03:52,063 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 47 states, 46 states have (on average 1.1521739130434783) internal successors, (53), 46 states have internal predecessors, (53), 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) [2022-01-10 04:03:52,064 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 53 transitions. [2022-01-10 04:03:52,064 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 53 transitions. Word has length 20 [2022-01-10 04:03:52,064 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:03:52,064 INFO L470 AbstractCegarLoop]: Abstraction has 47 states and 53 transitions. [2022-01-10 04:03:52,064 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.3333333333333335) internal successors, (35), 15 states have internal predecessors, (35), 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) [2022-01-10 04:03:52,064 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 53 transitions. [2022-01-10 04:03:52,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 04:03:52,065 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:52,065 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:52,076 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (10)] Ended with exit code 0 [2022-01-10 04:03:52,269 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:03:52,270 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:52,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:52,270 INFO L85 PathProgramCache]: Analyzing trace with hash 1197174726, now seen corresponding path program 2 times [2022-01-10 04:03:52,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:52,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [817385467] [2022-01-10 04:03:52,270 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-10 04:03:52,271 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:52,271 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:52,272 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:52,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Waiting until timeout for monitored process [2022-01-10 04:03:52,496 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-10 04:03:52,496 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 04:03:52,513 INFO L263 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-10 04:03:52,514 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:52,783 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 04:03:52,783 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:03:53,407 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-01-10 04:03:53,407 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:03:53,407 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [817385467] [2022-01-10 04:03:53,408 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [817385467] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:03:53,408 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:03:53,408 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 9] total 18 [2022-01-10 04:03:53,408 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182041082] [2022-01-10 04:03:53,408 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:03:53,408 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-01-10 04:03:53,408 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:03:53,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-01-10 04:03:53,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2022-01-10 04:03:53,409 INFO L87 Difference]: Start difference. First operand 47 states and 53 transitions. Second operand has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 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) [2022-01-10 04:03:54,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:03:54,502 INFO L93 Difference]: Finished difference Result 65 states and 71 transitions. [2022-01-10 04:03:54,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-01-10 04:03:54,512 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 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) Word has length 24 [2022-01-10 04:03:54,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:03:54,512 INFO L225 Difference]: With dead ends: 65 [2022-01-10 04:03:54,512 INFO L226 Difference]: Without dead ends: 45 [2022-01-10 04:03:54,513 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=212, Invalid=600, Unknown=0, NotChecked=0, Total=812 [2022-01-10 04:03:54,513 INFO L933 BasicCegarLoop]: 13 mSDtfsCounter, 95 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 148 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 148 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-01-10 04:03:54,513 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [95 Valid, 63 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 148 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-01-10 04:03:54,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-01-10 04:03:54,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 38. [2022-01-10 04:03:54,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 37 states have (on average 1.162162162162162) internal successors, (43), 37 states have internal predecessors, (43), 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) [2022-01-10 04:03:54,518 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 43 transitions. [2022-01-10 04:03:54,518 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 43 transitions. Word has length 24 [2022-01-10 04:03:54,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:03:54,518 INFO L470 AbstractCegarLoop]: Abstraction has 38 states and 43 transitions. [2022-01-10 04:03:54,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.4444444444444446) internal successors, (44), 18 states have internal predecessors, (44), 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) [2022-01-10 04:03:54,518 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 43 transitions. [2022-01-10 04:03:54,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-01-10 04:03:54,518 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:03:54,519 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:03:54,529 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (11)] Forceful destruction successful, exit code 0 [2022-01-10 04:03:54,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:03:54,728 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:03:54,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:03:54,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1232945932, now seen corresponding path program 3 times [2022-01-10 04:03:54,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:03:54,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [932442926] [2022-01-10 04:03:54,729 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-10 04:03:54,729 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:03:54,729 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:03:54,730 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:03:54,731 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Waiting until timeout for monitored process [2022-01-10 04:03:55,131 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-01-10 04:03:55,131 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 04:03:55,149 INFO L263 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 37 conjunts are in the unsatisfiable core [2022-01-10 04:03:55,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:03:55,170 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-01-10 04:03:55,178 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,181 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 32 treesize of output 36 [2022-01-10 04:03:55,187 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 33 treesize of output 33 [2022-01-10 04:03:55,193 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,197 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 18 [2022-01-10 04:03:55,203 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,209 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 19 [2022-01-10 04:03:55,261 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,262 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,264 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,267 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,269 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,271 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 52 treesize of output 61 [2022-01-10 04:03:55,388 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,390 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,391 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,392 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,393 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,394 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,395 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 7 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 47 treesize of output 56 [2022-01-10 04:03:55,537 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:03:55,539 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,541 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,543 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,543 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:03:55,545 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,546 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,546 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:03:55,547 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,549 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,550 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,551 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 7 select indices, 7 select index equivalence classes, 8 disjoint index pairs (out of 21 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 132 treesize of output 96 [2022-01-10 04:03:55,759 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,761 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,762 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,763 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,765 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,766 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,767 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,768 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,769 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,770 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,771 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:03:55,772 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 17 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 0 case distinctions, treesize of input 107 treesize of output 101 [2022-01-10 04:03:57,377 INFO L353 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-01-10 04:03:57,378 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 114 treesize of output 62 [2022-01-10 04:03:57,433 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:03:57,433 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:04:12,430 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:04:12,431 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:04:12,431 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [932442926] [2022-01-10 04:04:12,431 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [932442926] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:04:12,431 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:04:12,431 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 15] total 26 [2022-01-10 04:04:12,431 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1439212409] [2022-01-10 04:04:12,431 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:04:12,432 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-01-10 04:04:12,432 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:04:12,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-01-10 04:04:12,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=101, Invalid=549, Unknown=0, NotChecked=0, Total=650 [2022-01-10 04:04:12,433 INFO L87 Difference]: Start difference. First operand 38 states and 43 transitions. Second operand has 26 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 26 states have internal predecessors, (43), 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) [2022-01-10 04:04:15,357 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:04:15,357 INFO L93 Difference]: Finished difference Result 66 states and 74 transitions. [2022-01-10 04:04:15,357 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2022-01-10 04:04:15,357 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 26 states have internal predecessors, (43), 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) Word has length 24 [2022-01-10 04:04:15,358 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:04:15,358 INFO L225 Difference]: With dead ends: 66 [2022-01-10 04:04:15,358 INFO L226 Difference]: Without dead ends: 64 [2022-01-10 04:04:15,358 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 211 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=130, Invalid=740, Unknown=0, NotChecked=0, Total=870 [2022-01-10 04:04:15,359 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 15 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 107 SdHoareTripleChecker+Invalid, 140 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 81 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-01-10 04:04:15,359 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [15 Valid, 107 Invalid, 140 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 54 Invalid, 0 Unknown, 81 Unchecked, 1.2s Time] [2022-01-10 04:04:15,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-01-10 04:04:15,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 51. [2022-01-10 04:04:15,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 50 states have (on average 1.16) internal successors, (58), 50 states have internal predecessors, (58), 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) [2022-01-10 04:04:15,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 58 transitions. [2022-01-10 04:04:15,366 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 58 transitions. Word has length 24 [2022-01-10 04:04:15,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:04:15,366 INFO L470 AbstractCegarLoop]: Abstraction has 51 states and 58 transitions. [2022-01-10 04:04:15,366 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 1.6538461538461537) internal successors, (43), 26 states have internal predecessors, (43), 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) [2022-01-10 04:04:15,366 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 58 transitions. [2022-01-10 04:04:15,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-01-10 04:04:15,367 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:04:15,367 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:04:15,388 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (12)] Forceful destruction successful, exit code 0 [2022-01-10 04:04:15,579 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:04:15,579 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:04:15,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:04:15,580 INFO L85 PathProgramCache]: Analyzing trace with hash -1983767408, now seen corresponding path program 4 times [2022-01-10 04:04:15,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:04:15,580 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [159624864] [2022-01-10 04:04:15,580 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-10 04:04:15,580 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:04:15,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:04:15,581 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:04:15,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Waiting until timeout for monitored process [2022-01-10 04:04:15,711 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-10 04:04:15,712 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 04:04:15,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 14 conjunts are in the unsatisfiable core [2022-01-10 04:04:15,728 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:04:16,027 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:04:16,027 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-10 04:04:16,501 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 7 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:04:16,502 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2022-01-10 04:04:16,502 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [159624864] [2022-01-10 04:04:16,502 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [159624864] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-10 04:04:16,502 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-10 04:04:16,502 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 11] total 22 [2022-01-10 04:04:16,502 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832201022] [2022-01-10 04:04:16,502 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-10 04:04:16,502 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2022-01-10 04:04:16,502 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2022-01-10 04:04:16,503 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2022-01-10 04:04:16,503 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=107, Invalid=355, Unknown=0, NotChecked=0, Total=462 [2022-01-10 04:04:16,503 INFO L87 Difference]: Start difference. First operand 51 states and 58 transitions. Second operand has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 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) [2022-01-10 04:04:19,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-10 04:04:19,808 INFO L93 Difference]: Finished difference Result 109 states and 118 transitions. [2022-01-10 04:04:19,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-01-10 04:04:19,818 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 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) Word has length 26 [2022-01-10 04:04:19,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-10 04:04:19,818 INFO L225 Difference]: With dead ends: 109 [2022-01-10 04:04:19,818 INFO L226 Difference]: Without dead ends: 97 [2022-01-10 04:04:19,819 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 457 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=516, Invalid=1554, Unknown=0, NotChecked=0, Total=2070 [2022-01-10 04:04:19,820 INFO L933 BasicCegarLoop]: 15 mSDtfsCounter, 286 mSDsluCounter, 86 mSDsCounter, 0 mSdLazyCounter, 355 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 286 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 355 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2022-01-10 04:04:19,820 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [286 Valid, 101 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 355 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2022-01-10 04:04:19,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2022-01-10 04:04:19,832 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 66. [2022-01-10 04:04:19,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.1384615384615384) internal successors, (74), 65 states have internal predecessors, (74), 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) [2022-01-10 04:04:19,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 74 transitions. [2022-01-10 04:04:19,832 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 74 transitions. Word has length 26 [2022-01-10 04:04:19,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-10 04:04:19,833 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 74 transitions. [2022-01-10 04:04:19,833 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 2.0) internal successors, (44), 22 states have internal predecessors, (44), 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) [2022-01-10 04:04:19,833 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 74 transitions. [2022-01-10 04:04:19,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-01-10 04:04:19,833 INFO L506 BasicCegarLoop]: Found error trace [2022-01-10 04:04:19,833 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-10 04:04:19,848 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (13)] Ended with exit code 0 [2022-01-10 04:04:20,046 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2022-01-10 04:04:20,046 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-10 04:04:20,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-10 04:04:20,047 INFO L85 PathProgramCache]: Analyzing trace with hash -55017726, now seen corresponding path program 4 times [2022-01-10 04:04:20,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2022-01-10 04:04:20,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [170156709] [2022-01-10 04:04:20,048 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-10 04:04:20,048 INFO L168 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2022-01-10 04:04:20,048 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2022-01-10 04:04:20,050 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2022-01-10 04:04:20,051 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (14)] Waiting until timeout for monitored process [2022-01-10 04:04:20,568 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-10 04:04:20,569 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-10 04:04:20,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 40 conjunts are in the unsatisfiable core [2022-01-10 04:04:20,603 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-10 04:04:20,632 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,633 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,634 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,636 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:20,637 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,639 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:20,660 INFO L353 Elim1Store]: treesize reduction 34, result has 38.2 percent of original size [2022-01-10 04:04:20,660 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 4 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 2 case distinctions, treesize of input 48 treesize of output 39 [2022-01-10 04:04:20,683 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 9 [2022-01-10 04:04:20,744 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,745 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,746 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,747 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,748 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,750 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,751 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,752 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,753 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:20,753 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,754 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:20,755 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:20,760 INFO L353 Elim1Store]: treesize reduction 38, result has 2.6 percent of original size [2022-01-10 04:04:20,760 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 6 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 102 treesize of output 102 [2022-01-10 04:04:20,965 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,966 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,967 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,968 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,969 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,970 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,971 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,972 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,973 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,975 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,976 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,977 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:20,977 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:20,982 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-10 04:04:20,982 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 15 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 15 case distinctions, treesize of input 99 treesize of output 97 [2022-01-10 04:04:21,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,151 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,152 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,153 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,154 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,154 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:21,155 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,156 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,156 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:21,157 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,158 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,159 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,160 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,161 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,162 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,163 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,164 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:21,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,165 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:21,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:21,166 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:21,167 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:21,194 INFO L353 Elim1Store]: treesize reduction 131, result has 15.5 percent of original size [2022-01-10 04:04:21,194 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 10 select indices, 10 select index equivalence classes, 7 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 47 case distinctions, treesize of input 211 treesize of output 169 [2022-01-10 04:04:21,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,562 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,563 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,564 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,565 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,566 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,567 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,568 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,569 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,570 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,570 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:21,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,571 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,572 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-10 04:04:21,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:21,573 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-10 04:04:21,581 INFO L353 Elim1Store]: treesize reduction 32, result has 3.0 percent of original size [2022-01-10 04:04:21,581 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 15 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 28 case distinctions, treesize of input 211 treesize of output 143 [2022-01-10 04:04:22,689 INFO L353 Elim1Store]: treesize reduction 29, result has 12.1 percent of original size [2022-01-10 04:04:22,689 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 10 select indices, 10 select index equivalence classes, 15 disjoint index pairs (out of 45 index pairs), introduced 10 new quantified variables, introduced 45 case distinctions, treesize of input 241 treesize of output 141 [2022-01-10 04:04:22,736 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-10 04:04:22,736 INFO L328 TraceCheckSpWp]: Computing backward predicates...