/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/array-patterns/array7_pattern.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-03-30 22:27:46,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-03-30 22:27:46,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-03-30 22:27:46,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-03-30 22:27:46,878 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2023-03-30 22:27:46,881 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2023-03-30 22:27:46,882 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2023-03-30 22:27:46,882 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2023-03-30 22:27:46,883 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2023-03-30 22:27:46,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2023-03-30 22:27:46,885 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2023-03-30 22:27:46,889 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2023-03-30 22:27:46,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2023-03-30 22:27:46,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2023-03-30 22:27:46,890 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2023-03-30 22:27:46,891 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2023-03-30 22:27:46,893 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2023-03-30 22:27:46,897 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-03-30 22:27:46,897 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-03-30 22:27:46,898 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-03-30 22:27:46,899 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-03-30 22:27:46,918 INFO L113 SettingsManager]: Loading preferences was successful [2023-03-30 22:27:46,918 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-03-30 22:27:46,919 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-03-30 22:27:46,919 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-03-30 22:27:46,920 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-03-30 22:27:46,920 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-03-30 22:27:46,920 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-03-30 22:27:46,920 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-03-30 22:27:46,920 INFO L138 SettingsManager]: * Use SBE=true [2023-03-30 22:27:46,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-03-30 22:27:46,921 INFO L138 SettingsManager]: * sizeof long=4 [2023-03-30 22:27:46,921 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-03-30 22:27:46,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-03-30 22:27:46,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-03-30 22:27:46,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-03-30 22:27:46,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-03-30 22:27:46,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-03-30 22:27:46,921 INFO L138 SettingsManager]: * sizeof long double=12 [2023-03-30 22:27:46,921 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-03-30 22:27:46,922 INFO L138 SettingsManager]: * Use constant arrays=true [2023-03-30 22:27:46,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-03-30 22:27:46,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-03-30 22:27:46,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-03-30 22:27:46,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-03-30 22:27:46,922 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:27:46,922 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-03-30 22:27:46,922 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-03-30 22:27:46,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-03-30 22:27:46,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-03-30 22:27:46,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-03-30 22:27:46,923 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-03-30 22:27:46,923 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-03-30 22:27:46,923 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-03-30 22:27:46,923 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-03-30 22:27:46,923 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-03-30 22:27:46,923 INFO L138 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-03-30 22:27:47,094 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-03-30 22:27:47,107 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-03-30 22:27:47,108 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-03-30 22:27:47,109 INFO L271 PluginConnector]: Initializing CDTParser... [2023-03-30 22:27:47,109 INFO L275 PluginConnector]: CDTParser initialized [2023-03-30 22:27:47,110 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-patterns/array7_pattern.c [2023-03-30 22:27:48,113 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-03-30 22:27:48,272 INFO L351 CDTParser]: Found 1 translation units. [2023-03-30 22:27:48,273 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c [2023-03-30 22:27:48,278 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10c9608fa/84c6872c2a5246fd9b77a4c13073224c/FLAG2135d67c6 [2023-03-30 22:27:48,287 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/10c9608fa/84c6872c2a5246fd9b77a4c13073224c [2023-03-30 22:27:48,309 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-03-30 22:27:48,311 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-03-30 22:27:48,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-03-30 22:27:48,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-03-30 22:27:48,317 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-03-30 22:27:48,318 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@231448d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48, skipping insertion in model container [2023-03-30 22:27:48,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,323 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-03-30 22:27:48,333 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-03-30 22:27:48,451 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2023-03-30 22:27:48,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:27:48,469 INFO L203 MainTranslator]: Completed pre-run [2023-03-30 22:27:48,479 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-patterns/array7_pattern.c[1375,1388] [2023-03-30 22:27:48,502 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-03-30 22:27:48,510 INFO L208 MainTranslator]: Completed translation [2023-03-30 22:27:48,511 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48 WrapperNode [2023-03-30 22:27:48,511 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-03-30 22:27:48,512 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-03-30 22:27:48,512 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-03-30 22:27:48,512 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-03-30 22:27:48,519 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,529 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,529 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,538 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,541 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,541 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,542 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-03-30 22:27:48,543 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-03-30 22:27:48,543 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-03-30 22:27:48,543 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-03-30 22:27:48,543 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48" (1/1) ... [2023-03-30 22:27:48,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-03-30 22:27:48,557 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:27:48,566 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-03-30 22:27:48,583 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-03-30 22:27:48,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-03-30 22:27:48,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-03-30 22:27:48,594 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-03-30 22:27:48,594 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-03-30 22:27:48,594 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-03-30 22:27:48,594 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-03-30 22:27:48,594 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-03-30 22:27:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-03-30 22:27:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-03-30 22:27:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-03-30 22:27:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-03-30 22:27:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-03-30 22:27:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-03-30 22:27:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_short [2023-03-30 22:27:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-03-30 22:27:48,595 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-03-30 22:27:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-03-30 22:27:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-03-30 22:27:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-03-30 22:27:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-03-30 22:27:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-03-30 22:27:48,596 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-03-30 22:27:48,659 INFO L236 CfgBuilder]: Building ICFG [2023-03-30 22:27:48,660 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-03-30 22:27:48,815 INFO L277 CfgBuilder]: Performing block encoding [2023-03-30 22:27:48,818 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-03-30 22:27:48,819 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-03-30 22:27:48,820 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:27:48 BoogieIcfgContainer [2023-03-30 22:27:48,820 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-03-30 22:27:48,821 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-03-30 22:27:48,821 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-03-30 22:27:48,823 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-03-30 22:27:48,823 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.03 10:27:48" (1/3) ... [2023-03-30 22:27:48,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5756a0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:27:48, skipping insertion in model container [2023-03-30 22:27:48,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.03 10:27:48" (2/3) ... [2023-03-30 22:27:48,824 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5756a0fd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.03 10:27:48, skipping insertion in model container [2023-03-30 22:27:48,824 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.03 10:27:48" (3/3) ... [2023-03-30 22:27:48,825 INFO L112 eAbstractionObserver]: Analyzing ICFG array7_pattern.c [2023-03-30 22:27:48,835 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-03-30 22:27:48,835 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-03-30 22:27:48,862 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-03-30 22:27:48,866 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=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, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@3b0d2e33, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-03-30 22:27:48,866 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-03-30 22:27:48,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 34 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-30 22:27:48,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2023-03-30 22:27:48,872 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:27:48,873 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:27:48,873 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:27:48,876 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:27:48,876 INFO L85 PathProgramCache]: Analyzing trace with hash 1775130296, now seen corresponding path program 1 times [2023-03-30 22:27:48,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:27:48,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1139939237] [2023-03-30 22:27:48,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:27:48,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:27:48,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:48,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 22:27:48,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:48,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-30 22:27:48,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:48,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-03-30 22:27:49,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:27:49,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1139939237] [2023-03-30 22:27:49,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1139939237] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:27:49,000 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:27:49,001 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2023-03-30 22:27:49,002 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1891799926] [2023-03-30 22:27:49,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:27:49,004 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2023-03-30 22:27:49,005 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:27:49,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2023-03-30 22:27:49,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-30 22:27:49,022 INFO L87 Difference]: Start difference. First operand has 34 states, 22 states have (on average 1.4545454545454546) internal successors, (32), 23 states have internal predecessors, (32), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-30 22:27:49,082 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:27:49,082 INFO L93 Difference]: Finished difference Result 61 states and 84 transitions. [2023-03-30 22:27:49,083 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2023-03-30 22:27:49,084 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2023-03-30 22:27:49,084 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:27:49,088 INFO L225 Difference]: With dead ends: 61 [2023-03-30 22:27:49,088 INFO L226 Difference]: Without dead ends: 27 [2023-03-30 22:27:49,089 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2023-03-30 22:27:49,092 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 33 SdHoareTripleChecker+Invalid, 34 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-30 22:27:49,092 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 33 Invalid, 34 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:27:49,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2023-03-30 22:27:49,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2023-03-30 22:27:49,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-30 22:27:49,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2023-03-30 22:27:49,118 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 20 [2023-03-30 22:27:49,118 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:27:49,118 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2023-03-30 22:27:49,118 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.666666666666667) internal successors, (14), 2 states have internal predecessors, (14), 2 states have call successors, (4), 3 states have call predecessors, (4), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2023-03-30 22:27:49,118 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2023-03-30 22:27:49,119 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2023-03-30 22:27:49,119 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:27:49,120 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:27:49,120 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-03-30 22:27:49,120 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:27:49,121 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:27:49,121 INFO L85 PathProgramCache]: Analyzing trace with hash -1947580205, now seen corresponding path program 1 times [2023-03-30 22:27:49,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:27:49,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [169471822] [2023-03-30 22:27:49,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:27:49,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:27:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 22:27:49,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-30 22:27:49,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-30 22:27:49,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-30 22:27:49,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,412 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-03-30 22:27:49,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:27:49,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [169471822] [2023-03-30 22:27:49,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [169471822] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:27:49,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:27:49,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-30 22:27:49,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291700227] [2023-03-30 22:27:49,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:27:49,414 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-30 22:27:49,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:27:49,414 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-30 22:27:49,414 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2023-03-30 22:27:49,415 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-30 22:27:49,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:27:49,485 INFO L93 Difference]: Finished difference Result 33 states and 37 transitions. [2023-03-30 22:27:49,486 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-03-30 22:27:49,486 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 32 [2023-03-30 22:27:49,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:27:49,487 INFO L225 Difference]: With dead ends: 33 [2023-03-30 22:27:49,487 INFO L226 Difference]: Without dead ends: 28 [2023-03-30 22:27:49,487 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2023-03-30 22:27:49,488 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 11 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-30 22:27:49,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 73 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:27:49,489 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2023-03-30 22:27:49,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2023-03-30 22:27:49,493 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 19 states have internal predecessors, (22), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-30 22:27:49,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 32 transitions. [2023-03-30 22:27:49,494 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 32 transitions. Word has length 32 [2023-03-30 22:27:49,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:27:49,495 INFO L495 AbstractCegarLoop]: Abstraction has 28 states and 32 transitions. [2023-03-30 22:27:49,495 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.6666666666666665) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-30 22:27:49,495 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 32 transitions. [2023-03-30 22:27:49,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2023-03-30 22:27:49,496 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:27:49,496 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:27:49,496 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2023-03-30 22:27:49,496 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:27:49,497 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:27:49,497 INFO L85 PathProgramCache]: Analyzing trace with hash 1911564209, now seen corresponding path program 1 times [2023-03-30 22:27:49,497 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:27:49,497 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291804282] [2023-03-30 22:27:49,497 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:27:49,497 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:27:49,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-03-30 22:27:49,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2023-03-30 22:27:49,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,593 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2023-03-30 22:27:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2023-03-30 22:27:49,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,605 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-03-30 22:27:49,605 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:27:49,605 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291804282] [2023-03-30 22:27:49,605 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1291804282] provided 1 perfect and 0 imperfect interpolant sequences [2023-03-30 22:27:49,605 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-03-30 22:27:49,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2023-03-30 22:27:49,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1926211077] [2023-03-30 22:27:49,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-03-30 22:27:49,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2023-03-30 22:27:49,606 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:27:49,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2023-03-30 22:27:49,607 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2023-03-30 22:27:49,607 INFO L87 Difference]: Start difference. First operand 28 states and 32 transitions. Second operand has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-30 22:27:49,684 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:27:49,684 INFO L93 Difference]: Finished difference Result 49 states and 56 transitions. [2023-03-30 22:27:49,685 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2023-03-30 22:27:49,685 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 34 [2023-03-30 22:27:49,686 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:27:49,686 INFO L225 Difference]: With dead ends: 49 [2023-03-30 22:27:49,686 INFO L226 Difference]: Without dead ends: 31 [2023-03-30 22:27:49,687 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2023-03-30 22:27:49,687 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 23 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 89 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:27:49,688 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 41 Invalid, 89 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:27:49,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2023-03-30 22:27:49,691 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2023-03-30 22:27:49,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-30 22:27:49,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2023-03-30 22:27:49,692 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 34 [2023-03-30 22:27:49,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:27:49,693 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2023-03-30 22:27:49,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.0) internal successors, (18), 5 states have internal predecessors, (18), 3 states have call successors, (6), 3 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2023-03-30 22:27:49,706 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2023-03-30 22:27:49,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2023-03-30 22:27:49,707 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:27:49,707 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:27:49,707 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2023-03-30 22:27:49,708 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:27:49,708 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:27:49,708 INFO L85 PathProgramCache]: Analyzing trace with hash 1017660211, now seen corresponding path program 1 times [2023-03-30 22:27:49,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:27:49,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [139206538] [2023-03-30 22:27:49,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:27:49,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:27:49,732 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:27:49,732 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1472624542] [2023-03-30 22:27:49,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:27:49,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:27:49,732 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:27:49,759 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:27:49,760 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-03-30 22:27:49,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:27:49,828 INFO L262 TraceCheckSpWp]: Trace formula consists of 166 conjuncts, 13 conjunts are in the unsatisfiable core [2023-03-30 22:27:49,833 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:27:49,912 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2023-03-30 22:27:49,912 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:27:50,068 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 9 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-30 22:27:50,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:27:50,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [139206538] [2023-03-30 22:27:50,068 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:27:50,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1472624542] [2023-03-30 22:27:50,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1472624542] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:27:50,068 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:27:50,069 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10] total 15 [2023-03-30 22:27:50,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [449352854] [2023-03-30 22:27:50,069 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:27:50,069 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-30 22:27:50,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:27:50,070 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-30 22:27:50,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=161, Unknown=0, NotChecked=0, Total=210 [2023-03-30 22:27:50,070 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 6 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-03-30 22:27:50,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:27:50,215 INFO L93 Difference]: Finished difference Result 81 states and 91 transitions. [2023-03-30 22:27:50,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2023-03-30 22:27:50,215 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 6 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 36 [2023-03-30 22:27:50,216 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:27:50,216 INFO L225 Difference]: With dead ends: 81 [2023-03-30 22:27:50,216 INFO L226 Difference]: Without dead ends: 49 [2023-03-30 22:27:50,217 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 57 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=105, Invalid=357, Unknown=0, NotChecked=0, Total=462 [2023-03-30 22:27:50,217 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 28 mSDsluCounter, 103 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 28 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 145 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:27:50,218 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [28 Valid, 126 Invalid, 145 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:27:50,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-03-30 22:27:50,222 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 33. [2023-03-30 22:27:50,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 6 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-30 22:27:50,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 37 transitions. [2023-03-30 22:27:50,222 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 37 transitions. Word has length 36 [2023-03-30 22:27:50,222 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:27:50,223 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 37 transitions. [2023-03-30 22:27:50,223 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 6 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2023-03-30 22:27:50,223 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 37 transitions. [2023-03-30 22:27:50,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2023-03-30 22:27:50,223 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:27:50,223 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:27:50,231 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2023-03-30 22:27:50,428 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:27:50,429 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:27:50,429 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:27:50,429 INFO L85 PathProgramCache]: Analyzing trace with hash 1814171831, now seen corresponding path program 2 times [2023-03-30 22:27:50,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:27:50,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1044355153] [2023-03-30 22:27:50,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:27:50,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:27:50,448 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:27:50,448 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [435314726] [2023-03-30 22:27:50,448 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-30 22:27:50,448 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:27:50,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:27:50,467 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:27:50,468 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-03-30 22:27:50,567 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-03-30 22:27:50,567 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:27:50,568 INFO L262 TraceCheckSpWp]: Trace formula consists of 192 conjuncts, 6 conjunts are in the unsatisfiable core [2023-03-30 22:27:50,569 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:27:50,655 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 9 proven. 7 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2023-03-30 22:27:50,655 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:27:50,719 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 1 proven. 7 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2023-03-30 22:27:50,719 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:27:50,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1044355153] [2023-03-30 22:27:50,720 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:27:50,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [435314726] [2023-03-30 22:27:50,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [435314726] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:27:50,721 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:27:50,722 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2023-03-30 22:27:50,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562925306] [2023-03-30 22:27:50,722 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:27:50,723 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2023-03-30 22:27:50,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:27:50,725 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2023-03-30 22:27:50,725 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2023-03-30 22:27:50,725 INFO L87 Difference]: Start difference. First operand 33 states and 37 transitions. Second operand has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-30 22:27:50,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:27:50,814 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2023-03-30 22:27:50,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2023-03-30 22:27:50,814 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2023-03-30 22:27:50,814 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:27:50,816 INFO L225 Difference]: With dead ends: 45 [2023-03-30 22:27:50,816 INFO L226 Difference]: Without dead ends: 40 [2023-03-30 22:27:50,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 69 SyntacticMatches, 3 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2023-03-30 22:27:50,818 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 21 mSDsluCounter, 87 mSDsCounter, 0 mSdLazyCounter, 56 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 56 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2023-03-30 22:27:50,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 113 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 56 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2023-03-30 22:27:50,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2023-03-30 22:27:50,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 39. [2023-03-30 22:27:50,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.103448275862069) internal successors, (32), 29 states have internal predecessors, (32), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-30 22:27:50,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2023-03-30 22:27:50,833 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 40 [2023-03-30 22:27:50,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:27:50,834 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2023-03-30 22:27:50,835 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.3333333333333335) internal successors, (30), 9 states have internal predecessors, (30), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-30 22:27:50,835 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2023-03-30 22:27:50,836 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2023-03-30 22:27:50,836 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:27:50,836 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:27:50,857 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2023-03-30 22:27:51,041 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:27:51,042 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:27:51,042 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:27:51,042 INFO L85 PathProgramCache]: Analyzing trace with hash 592807573, now seen corresponding path program 3 times [2023-03-30 22:27:51,043 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:27:51,043 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1895342335] [2023-03-30 22:27:51,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:27:51,043 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:27:51,060 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:27:51,061 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [263111330] [2023-03-30 22:27:51,061 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-30 22:27:51,061 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:27:51,061 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:27:51,077 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:27:51,108 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-03-30 22:27:51,197 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2023-03-30 22:27:51,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:27:51,198 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 14 conjunts are in the unsatisfiable core [2023-03-30 22:27:51,200 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:27:51,263 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2023-03-30 22:27:51,263 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:27:51,390 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 6 proven. 7 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-03-30 22:27:51,390 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:27:51,390 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1895342335] [2023-03-30 22:27:51,390 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:27:51,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [263111330] [2023-03-30 22:27:51,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [263111330] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:27:51,393 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:27:51,393 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 11] total 15 [2023-03-30 22:27:51,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1131185919] [2023-03-30 22:27:51,394 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:27:51,395 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-30 22:27:51,395 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:27:51,396 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-30 22:27:51,396 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=153, Unknown=0, NotChecked=0, Total=210 [2023-03-30 22:27:51,396 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 15 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-03-30 22:27:51,549 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:27:51,549 INFO L93 Difference]: Finished difference Result 54 states and 58 transitions. [2023-03-30 22:27:51,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2023-03-30 22:27:51,549 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) Word has length 42 [2023-03-30 22:27:51,550 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:27:51,552 INFO L225 Difference]: With dead ends: 54 [2023-03-30 22:27:51,552 INFO L226 Difference]: Without dead ends: 49 [2023-03-30 22:27:51,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 69 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=134, Invalid=372, Unknown=0, NotChecked=0, Total=506 [2023-03-30 22:27:51,554 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 31 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:27:51,555 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 98 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:27:51,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2023-03-30 22:27:51,564 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 41. [2023-03-30 22:27:51,565 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 31 states have (on average 1.096774193548387) internal successors, (34), 31 states have internal predecessors, (34), 6 states have call successors, (6), 5 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-03-30 22:27:51,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 44 transitions. [2023-03-30 22:27:51,566 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 44 transitions. Word has length 42 [2023-03-30 22:27:51,566 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:27:51,566 INFO L495 AbstractCegarLoop]: Abstraction has 41 states and 44 transitions. [2023-03-30 22:27:51,566 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 2.5714285714285716) internal successors, (36), 14 states have internal predecessors, (36), 3 states have call successors, (6), 2 states have call predecessors, (6), 3 states have return successors, (5), 3 states have call predecessors, (5), 2 states have call successors, (5) [2023-03-30 22:27:51,566 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2023-03-30 22:27:51,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2023-03-30 22:27:51,570 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:27:51,571 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:27:51,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-03-30 22:27:51,775 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:27:51,776 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:27:51,776 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:27:51,776 INFO L85 PathProgramCache]: Analyzing trace with hash -612172557, now seen corresponding path program 4 times [2023-03-30 22:27:51,776 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:27:51,777 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1996827326] [2023-03-30 22:27:51,777 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:27:51,777 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:27:51,788 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:27:51,788 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [533526693] [2023-03-30 22:27:51,788 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-03-30 22:27:51,789 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:27:51,789 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:27:51,789 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:27:51,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2023-03-30 22:27:52,240 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-03-30 22:27:52,240 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:27:52,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 96 conjunts are in the unsatisfiable core [2023-03-30 22:27:52,250 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:27:52,307 INFO L350 Elim1Store]: Elim1 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 10 treesize of output 8 [2023-03-30 22:27:52,335 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:52,338 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 23 [2023-03-30 22:27:52,342 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 20 [2023-03-30 22:27:52,345 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-03-30 22:27:52,349 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-03-30 22:27:52,413 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 37 [2023-03-30 22:27:52,517 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2023-03-30 22:27:52,518 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 58 treesize of output 59 [2023-03-30 22:27:53,804 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-03-30 22:27:53,805 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 829 treesize of output 766 [2023-03-30 22:27:53,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:53,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:53,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:53,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:53,881 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-30 22:27:53,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:53,884 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-30 22:27:53,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:53,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:53,890 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-30 22:27:53,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:53,896 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 214 treesize of output 278 [2023-03-30 22:27:56,002 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-30 22:27:56,006 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,017 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,024 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,030 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,035 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,038 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-30 22:27:56,042 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,048 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,050 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,056 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,058 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,062 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-30 22:27:56,065 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:56,067 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 7 select indices, 7 select index equivalence classes, 15 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 0 case distinctions, treesize of input 357 treesize of output 331 [2023-03-30 22:27:59,628 INFO L321 Elim1Store]: treesize reduction 4, result has 50.0 percent of original size [2023-03-30 22:27:59,629 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 180 treesize of output 168 [2023-03-30 22:27:59,636 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,638 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,640 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,641 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,647 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,649 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,651 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,654 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-30 22:27:59,657 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,658 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 51 treesize of output 21 [2023-03-30 22:27:59,668 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,672 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,673 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,674 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,678 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,681 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,682 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,683 INFO L173 IndexEqualityManager]: detected equality via solver [2023-03-30 22:27:59,685 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:27:59,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 0 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 15 [2023-03-30 22:27:59,754 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 8 proven. 18 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-30 22:27:59,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:28:07,780 WARN L223 SmtUtils]: Spent 5.76s on a formula simplification that was a NOOP. DAG size: 206 (called from [L 376] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-03-30 22:28:08,157 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_main_~index~0 c_main_~pivot~0))) (or (<= c_~ARR_SIZE~0 2) (< c_main_~index~0 c_main_~pivot~0) (<= c_~ARR_SIZE~0 .cse0) (let ((.cse55 (mod .cse0 4294967296)) (.cse53 (mod c_main_~index~0 4294967296))) (let ((.cse1 (mod (+ (* 4294967295 c_main_~pivot~0) c_main_~index~0) 4294967296)) (.cse54 (* 4 .cse53)) (.cse8 (select |c_#memory_int| |c_main_~#array1~0.base|)) (.cse52 (* 4 .cse55))) (let ((.cse24 (< 2147483647 .cse55)) (.cse14 (+ |c_main_~#array2~0.offset| .cse52)) (.cse22 (select .cse8 (+ |c_main_~#array1~0.offset| .cse52))) (.cse25 (<= .cse55 2147483647)) (.cse9 (+ (- 17179869184) .cse54 |c_main_~#array1~0.offset|)) (.cse11 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse54)) (.cse15 (<= .cse53 2147483647)) (.cse7 (+ 8 |c_main_~#array1~0.offset|)) (.cse5 (+ |c_main_~#array2~0.offset| 4)) (.cse6 (+ |c_main_~#array2~0.offset| 8)) (.cse4 (+ |c_main_~#array1~0.offset| 4)) (.cse18 (+ .cse54 |c_main_~#array1~0.offset|)) (.cse19 (+ |c_main_~#array2~0.offset| .cse54)) (.cse30 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse52)) (.cse21 (< 2147483647 .cse53)) (.cse34 (select .cse8 (+ (- 17179869184) |c_main_~#array1~0.offset| .cse52))) (.cse35 (* 4 .cse1))) (and (or (<= .cse1 2147483647) (let ((.cse13 (+ (- 17179869184) .cse35 |c_main_~#array2~0.offset|)) (.cse23 (select .cse8 (+ (- 17179869184) .cse35 |c_main_~#array1~0.offset|)))) (and (or (let ((.cse10 (+ .cse22 .cse23))) (and (or (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (= (let ((.cse2 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_278) |c_main_~#array2~0.base|) .cse11 (let ((.cse12 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_279) |c_main_~#array2~0.base|))) (+ (select .cse12 .cse13) (select .cse12 .cse14)))))) (let ((.cse3 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse8 .cse9 .cse10)) |c_main_~#array2~0.base| .cse2) |c_main_~#array1~0.base|))) (+ (select .cse2 |c_main_~#array2~0.offset|) (select .cse3 |c_main_~#array1~0.offset|) (select .cse3 .cse4) (select .cse2 .cse5) (select .cse2 .cse6) (select .cse3 .cse7) c_main_~sum~0))) 0)) .cse15) (or (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (= (let ((.cse17 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_278) |c_main_~#array2~0.base|) .cse19 (let ((.cse20 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_279) |c_main_~#array2~0.base|))) (+ (select .cse20 .cse13) (select .cse20 .cse14)))))) (let ((.cse16 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse8 .cse18 .cse10)) |c_main_~#array2~0.base| .cse17) |c_main_~#array1~0.base|))) (+ (select .cse16 |c_main_~#array1~0.offset|) (select .cse16 .cse4) (select .cse17 .cse6) (select .cse17 |c_main_~#array2~0.offset|) (select .cse16 .cse7) (select .cse17 .cse5) c_main_~sum~0))) 0)) .cse21))) .cse24) (or .cse25 (let ((.cse28 (+ .cse34 .cse23))) (and (or (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (= (let ((.cse26 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_278) |c_main_~#array2~0.base|) .cse11 (let ((.cse29 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_279) |c_main_~#array2~0.base|))) (+ (select .cse29 .cse13) (select .cse29 .cse30)))))) (let ((.cse27 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse8 .cse9 .cse28)) |c_main_~#array2~0.base| .cse26) |c_main_~#array1~0.base|))) (+ (select .cse26 .cse6) (select .cse26 |c_main_~#array2~0.offset|) (select .cse27 .cse4) (select .cse27 .cse7) (select .cse26 .cse5) c_main_~sum~0 (select .cse27 |c_main_~#array1~0.offset|)))) 0)) .cse15) (or (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (= (let ((.cse32 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_278) |c_main_~#array2~0.base|) .cse19 (let ((.cse33 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_279) |c_main_~#array2~0.base|))) (+ (select .cse33 .cse13) (select .cse33 .cse30)))))) (let ((.cse31 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse8 .cse18 .cse28)) |c_main_~#array2~0.base| .cse32) |c_main_~#array1~0.base|))) (+ (select .cse31 |c_main_~#array1~0.offset|) (select .cse31 .cse4) (select .cse32 .cse5) (select .cse32 |c_main_~#array2~0.offset|) (select .cse32 .cse6) (select .cse31 .cse7) c_main_~sum~0))) 0)) .cse21))))))) (or (< 2147483647 .cse1) (let ((.cse40 (+ .cse35 |c_main_~#array2~0.offset|)) (.cse44 (select .cse8 (+ .cse35 |c_main_~#array1~0.offset|)))) (and (or .cse24 (let ((.cse38 (+ .cse22 .cse44))) (and (or (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (= (let ((.cse36 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_278) |c_main_~#array2~0.base|) .cse19 (let ((.cse39 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_279) |c_main_~#array2~0.base|))) (+ (select .cse39 .cse14) (select .cse39 .cse40)))))) (let ((.cse37 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse8 .cse18 .cse38)) |c_main_~#array2~0.base| .cse36) |c_main_~#array1~0.base|))) (+ (select .cse36 |c_main_~#array2~0.offset|) (select .cse37 |c_main_~#array1~0.offset|) (select .cse36 .cse5) (select .cse36 .cse6) (select .cse37 .cse4) (select .cse37 .cse7) c_main_~sum~0))) 0)) .cse21) (or (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (= (let ((.cse41 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_278) |c_main_~#array2~0.base|) .cse11 (let ((.cse43 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_279) |c_main_~#array2~0.base|))) (+ (select .cse43 .cse14) (select .cse43 .cse40)))))) (let ((.cse42 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse8 .cse9 .cse38)) |c_main_~#array2~0.base| .cse41) |c_main_~#array1~0.base|))) (+ (select .cse41 |c_main_~#array2~0.offset|) (select .cse42 .cse4) (select .cse42 .cse7) (select .cse41 .cse6) (select .cse41 .cse5) (select .cse42 |c_main_~#array1~0.offset|) c_main_~sum~0))) 0)) .cse15)))) (or .cse25 (let ((.cse47 (+ .cse34 .cse44))) (and (or (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (= (let ((.cse45 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_278) |c_main_~#array2~0.base|) .cse11 (let ((.cse48 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_279) |c_main_~#array2~0.base|))) (+ (select .cse48 .cse30) (select .cse48 .cse40)))))) (let ((.cse46 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse8 .cse9 .cse47)) |c_main_~#array2~0.base| .cse45) |c_main_~#array1~0.base|))) (+ (select .cse45 .cse6) (select .cse46 .cse4) (select .cse45 |c_main_~#array2~0.offset|) (select .cse45 .cse5) (select .cse46 .cse7) (select .cse46 |c_main_~#array1~0.offset|) c_main_~sum~0))) 0)) .cse15) (or (forall ((v_ArrVal_278 (Array Int Int)) (v_ArrVal_279 (Array Int Int))) (= (let ((.cse49 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_278) |c_main_~#array2~0.base|) .cse19 (let ((.cse51 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_279) |c_main_~#array2~0.base|))) (+ (select .cse51 .cse30) (select .cse51 .cse40)))))) (let ((.cse50 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse8 .cse18 .cse47)) |c_main_~#array2~0.base| .cse49) |c_main_~#array1~0.base|))) (+ (select .cse49 |c_main_~#array2~0.offset|) (select .cse50 .cse7) (select .cse49 .cse5) (select .cse49 .cse6) (select .cse50 .cse4) (select .cse50 |c_main_~#array1~0.offset|) c_main_~sum~0))) 0)) .cse21))))))))))))) is different from false [2023-03-30 22:28:08,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:28:08,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1996827326] [2023-03-30 22:28:08,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:28:08,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [533526693] [2023-03-30 22:28:08,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [533526693] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-30 22:28:08,199 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-03-30 22:28:08,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26] total 26 [2023-03-30 22:28:08,199 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1674827972] [2023-03-30 22:28:08,199 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-03-30 22:28:08,200 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2023-03-30 22:28:08,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:28:08,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2023-03-30 22:28:08,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=152, Invalid=1039, Unknown=3, NotChecked=66, Total=1260 [2023-03-30 22:28:08,201 INFO L87 Difference]: Start difference. First operand 41 states and 44 transitions. Second operand has 26 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 21 states have internal predecessors, (31), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-03-30 22:28:10,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:28:10,651 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2023-03-30 22:28:10,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2023-03-30 22:28:10,652 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 21 states have internal predecessors, (31), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 44 [2023-03-30 22:28:10,653 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:28:10,653 INFO L225 Difference]: With dead ends: 70 [2023-03-30 22:28:10,653 INFO L226 Difference]: Without dead ends: 65 [2023-03-30 22:28:10,654 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 21 SyntacticMatches, 3 SemanticMatches, 46 ConstructedPredicates, 1 IntricatePredicates, 0 DeprecatedPredicates, 555 ImplicationChecksByTransitivity, 9.5s TimeCoverageRelationStatistics Valid=289, Invalid=1874, Unknown=3, NotChecked=90, Total=2256 [2023-03-30 22:28:10,654 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 41 mSDsluCounter, 303 mSDsCounter, 0 mSdLazyCounter, 647 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 43 SdHoareTripleChecker+Valid, 326 SdHoareTripleChecker+Invalid, 659 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 647 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2023-03-30 22:28:10,655 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [43 Valid, 326 Invalid, 659 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 647 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2023-03-30 22:28:10,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-03-30 22:28:10,662 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 55. [2023-03-30 22:28:10,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 42 states have (on average 1.119047619047619) internal successors, (47), 42 states have internal predecessors, (47), 8 states have call successors, (8), 6 states have call predecessors, (8), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-03-30 22:28:10,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2023-03-30 22:28:10,663 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 44 [2023-03-30 22:28:10,664 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:28:10,664 INFO L495 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2023-03-30 22:28:10,664 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 24 states have (on average 1.2916666666666667) internal successors, (31), 21 states have internal predecessors, (31), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-03-30 22:28:10,664 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2023-03-30 22:28:10,664 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-30 22:28:10,664 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:28:10,664 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:28:10,672 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2023-03-30 22:28:10,867 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:10,867 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:28:10,868 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:28:10,868 INFO L85 PathProgramCache]: Analyzing trace with hash 1043092433, now seen corresponding path program 5 times [2023-03-30 22:28:10,869 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:28:10,869 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1883188903] [2023-03-30 22:28:10,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:28:10,869 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:28:10,903 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:28:10,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [500651282] [2023-03-30 22:28:10,903 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2023-03-30 22:28:10,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:10,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:28:10,908 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:28:10,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2023-03-30 22:28:11,002 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 6 check-sat command(s) [2023-03-30 22:28:11,002 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:28:11,003 INFO L262 TraceCheckSpWp]: Trace formula consists of 207 conjuncts, 10 conjunts are in the unsatisfiable core [2023-03-30 22:28:11,004 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:28:11,150 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 24 proven. 9 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-30 22:28:11,150 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:28:11,230 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 16 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-03-30 22:28:11,230 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:28:11,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1883188903] [2023-03-30 22:28:11,230 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:28:11,230 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [500651282] [2023-03-30 22:28:11,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [500651282] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:28:11,231 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:28:11,231 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2023-03-30 22:28:11,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1003326394] [2023-03-30 22:28:11,231 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:28:11,231 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-30 22:28:11,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:28:11,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-30 22:28:11,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-03-30 22:28:11,232 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-30 22:28:11,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:28:11,378 INFO L93 Difference]: Finished difference Result 94 states and 103 transitions. [2023-03-30 22:28:11,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2023-03-30 22:28:11,378 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2023-03-30 22:28:11,378 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:28:11,379 INFO L225 Difference]: With dead ends: 94 [2023-03-30 22:28:11,379 INFO L226 Difference]: Without dead ends: 79 [2023-03-30 22:28:11,379 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 73 SyntacticMatches, 5 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=110, Invalid=270, Unknown=0, NotChecked=0, Total=380 [2023-03-30 22:28:11,380 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 40 mSDsluCounter, 170 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 155 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:28:11,380 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 197 Invalid, 155 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:28:11,380 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2023-03-30 22:28:11,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 69. [2023-03-30 22:28:11,392 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 53 states have (on average 1.0943396226415094) internal successors, (58), 53 states have internal predecessors, (58), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-03-30 22:28:11,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 76 transitions. [2023-03-30 22:28:11,393 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 76 transitions. Word has length 46 [2023-03-30 22:28:11,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:28:11,393 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 76 transitions. [2023-03-30 22:28:11,393 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-30 22:28:11,393 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 76 transitions. [2023-03-30 22:28:11,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2023-03-30 22:28:11,393 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:28:11,393 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:28:11,398 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2023-03-30 22:28:11,594 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:11,594 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:28:11,596 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:28:11,596 INFO L85 PathProgramCache]: Analyzing trace with hash 1530404341, now seen corresponding path program 6 times [2023-03-30 22:28:11,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:28:11,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735438453] [2023-03-30 22:28:11,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:28:11,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:28:11,614 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:28:11,615 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [288100299] [2023-03-30 22:28:11,615 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2023-03-30 22:28:11,615 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:11,615 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:28:11,616 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:28:11,618 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2023-03-30 22:28:12,418 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2023-03-30 22:28:12,418 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:28:12,420 INFO L262 TraceCheckSpWp]: Trace formula consists of 215 conjuncts, 10 conjunts are in the unsatisfiable core [2023-03-30 22:28:12,422 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:28:12,532 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 17 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-30 22:28:12,532 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:28:12,606 INFO L134 CoverageAnalysis]: Checked inductivity of 37 backedges. 9 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-03-30 22:28:12,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:28:12,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735438453] [2023-03-30 22:28:12,607 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:28:12,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [288100299] [2023-03-30 22:28:12,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [288100299] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:28:12,607 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:28:12,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 15 [2023-03-30 22:28:12,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [226969794] [2023-03-30 22:28:12,607 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:28:12,608 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2023-03-30 22:28:12,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:28:12,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2023-03-30 22:28:12,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2023-03-30 22:28:12,608 INFO L87 Difference]: Start difference. First operand 69 states and 76 transitions. Second operand has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-30 22:28:12,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:28:12,762 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2023-03-30 22:28:12,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2023-03-30 22:28:12,763 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 46 [2023-03-30 22:28:12,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:28:12,763 INFO L225 Difference]: With dead ends: 82 [2023-03-30 22:28:12,763 INFO L226 Difference]: Without dead ends: 77 [2023-03-30 22:28:12,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 73 SyntacticMatches, 5 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 117 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=149, Invalid=403, Unknown=0, NotChecked=0, Total=552 [2023-03-30 22:28:12,764 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 38 mSDsluCounter, 148 mSDsCounter, 0 mSdLazyCounter, 144 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 181 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 144 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:28:12,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 181 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 144 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:28:12,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2023-03-30 22:28:12,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 71. [2023-03-30 22:28:12,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 55 states have (on average 1.0909090909090908) internal successors, (60), 55 states have internal predecessors, (60), 10 states have call successors, (10), 7 states have call predecessors, (10), 5 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2023-03-30 22:28:12,775 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 78 transitions. [2023-03-30 22:28:12,775 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 78 transitions. Word has length 46 [2023-03-30 22:28:12,775 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:28:12,775 INFO L495 AbstractCegarLoop]: Abstraction has 71 states and 78 transitions. [2023-03-30 22:28:12,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.7333333333333334) internal successors, (41), 15 states have internal predecessors, (41), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-30 22:28:12,775 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 78 transitions. [2023-03-30 22:28:12,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2023-03-30 22:28:12,776 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:28:12,776 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:28:12,783 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2023-03-30 22:28:12,983 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:12,984 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:28:12,984 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:28:12,984 INFO L85 PathProgramCache]: Analyzing trace with hash -1524810669, now seen corresponding path program 7 times [2023-03-30 22:28:12,984 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:28:12,984 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811190949] [2023-03-30 22:28:12,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:28:12,984 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:28:12,999 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:28:12,999 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1245594131] [2023-03-30 22:28:12,999 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2023-03-30 22:28:12,999 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:12,999 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:28:13,018 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:28:13,019 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2023-03-30 22:28:14,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-03-30 22:28:14,171 WARN L260 TraceCheckSpWp]: Trace formula consists of 220 conjuncts, 110 conjunts are in the unsatisfiable core [2023-03-30 22:28:14,175 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:28:14,200 INFO L350 Elim1Store]: Elim1 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 10 treesize of output 8 [2023-03-30 22:28:14,248 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:14,250 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 23 [2023-03-30 22:28:14,253 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 20 [2023-03-30 22:28:14,256 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-03-30 22:28:14,261 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-03-30 22:28:14,333 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 37 [2023-03-30 22:28:14,428 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2023-03-30 22:28:14,428 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 58 treesize of output 59 [2023-03-30 22:28:14,536 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2023-03-30 22:28:14,536 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 74 treesize of output 81 [2023-03-30 22:28:15,684 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-03-30 22:28:15,685 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 845 treesize of output 778 [2023-03-30 22:28:15,739 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,760 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,774 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,800 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,830 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,838 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,864 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,869 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:15,891 INFO L217 Elim1Store]: Index analysis took 167 ms [2023-03-30 22:28:15,927 INFO L321 Elim1Store]: treesize reduction 98, result has 1.0 percent of original size [2023-03-30 22:28:15,927 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 8 select indices, 8 select index equivalence classes, 39 disjoint index pairs (out of 28 index pairs), introduced 10 new quantified variables, introduced 6 case distinctions, treesize of input 370 treesize of output 373 [2023-03-30 22:28:17,693 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,708 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,732 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,749 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,772 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,791 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,824 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,852 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,905 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,924 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:17,979 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,004 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,037 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,126 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,150 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,168 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,175 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,225 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,243 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,260 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,312 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,346 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,362 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,379 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,404 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,424 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,436 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,442 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:18,442 INFO L217 Elim1Store]: Index analysis took 754 ms [2023-03-30 22:28:18,491 INFO L321 Elim1Store]: treesize reduction 90, result has 1.1 percent of original size [2023-03-30 22:28:18,491 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 9 select indices, 9 select index equivalence classes, 49 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 6 case distinctions, treesize of input 431 treesize of output 446 [2023-03-30 22:28:21,561 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:21,595 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:21,729 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:21,740 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:21,764 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:21,818 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:21,826 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:21,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:21,900 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:21,932 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:21,956 INFO L217 Elim1Store]: Index analysis took 421 ms [2023-03-30 22:28:23,408 INFO L321 Elim1Store]: treesize reduction 82, result has 27.4 percent of original size [2023-03-30 22:28:23,408 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 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 4 case distinctions, treesize of input 182 treesize of output 139 [2023-03-30 22:28:23,458 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:23,493 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:23,494 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:23,507 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:23,519 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:23,554 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:23,571 INFO L217 Elim1Store]: Index analysis took 113 ms [2023-03-30 22:28:24,061 INFO L321 Elim1Store]: treesize reduction 52, result has 37.3 percent of original size [2023-03-30 22:28:24,061 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 5 select indices, 5 select index equivalence classes, 13 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 2 case distinctions, treesize of input 192 treesize of output 156 [2023-03-30 22:28:31,809 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 8 proven. 32 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-30 22:28:31,809 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:28:35,142 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse69 (mod (+ c_main_~index~0 c_main_~pivot~0) 4294967296)) (.cse72 (mod c_main_~index~0 4294967296))) (let ((.cse0 (mod (+ (* 4294967295 c_main_~pivot~0) c_main_~index~0) 4294967296)) (.cse71 (* 4 .cse72)) (.cse16 (select |c_#memory_int| |c_main_~#array1~0.base|)) (.cse70 (* 4 .cse69))) (let ((.cse12 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse70)) (.cse27 (select .cse16 (+ (- 17179869184) |c_main_~#array1~0.offset| .cse70))) (.cse29 (<= .cse69 2147483647)) (.cse24 (+ |c_main_~#array2~0.offset| .cse71)) (.cse21 (< 2147483647 .cse72)) (.cse20 (<= .cse72 2147483647)) (.cse2 (+ 12 |c_main_~#array1~0.offset|)) (.cse5 (+ |c_main_~#array1~0.offset| 4)) (.cse8 (+ 8 |c_main_~#array1~0.offset|)) (.cse4 (+ |c_main_~#array2~0.offset| 8)) (.cse7 (+ |c_main_~#array2~0.offset| 12)) (.cse6 (+ |c_main_~#array2~0.offset| 4)) (.cse17 (+ (- 17179869184) .cse71 |c_main_~#array1~0.offset|)) (.cse10 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse71)) (.cse34 (+ |c_main_~#array2~0.offset| .cse70)) (.cse26 (+ .cse71 |c_main_~#array1~0.offset|)) (.cse42 (select .cse16 (+ |c_main_~#array1~0.offset| .cse70))) (.cse43 (< 2147483647 .cse69)) (.cse44 (* 4 .cse0))) (and (or (< 2147483647 .cse0) (let ((.cse13 (+ .cse44 |c_main_~#array2~0.offset|)) (.cse28 (select .cse16 (+ .cse44 |c_main_~#array1~0.offset|)))) (and (or (let ((.cse18 (+ .cse27 .cse28))) (let ((.cse9 (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse16 .cse26 .cse18)))) (and (or (and (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse3 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse10 (let ((.cse11 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse11 .cse12) (select .cse11 .cse13)))))) (let ((.cse1 (select (store .cse9 |c_main_~#array2~0.base| .cse3) |c_main_~#array1~0.base|))) (+ (select .cse1 .cse2) (select .cse3 .cse4) (select .cse1 .cse5) (select .cse3 .cse6) (select .cse3 .cse7) (select .cse1 |c_main_~#array1~0.offset|) (select .cse3 |c_main_~#array2~0.offset|) c_main_~sum~0 (select .cse1 .cse8)))) 0)) (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse14 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse10 (let ((.cse19 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse19 .cse12) (select .cse19 .cse13)))))) (let ((.cse15 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse16 .cse17 .cse18)) |c_main_~#array2~0.base| .cse14) |c_main_~#array1~0.base|))) (+ (select .cse14 .cse4) (select .cse15 .cse8) (select .cse14 .cse6) (select .cse14 .cse7) (select .cse15 |c_main_~#array1~0.offset|) (select .cse15 .cse5) (select .cse14 |c_main_~#array2~0.offset|) (select .cse15 .cse2) c_main_~sum~0))) 0))) .cse20) (or .cse21 (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse22 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse24 (let ((.cse25 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse25 .cse12) (select .cse25 .cse13)))))) (let ((.cse23 (select (store .cse9 |c_main_~#array2~0.base| .cse22) |c_main_~#array1~0.base|))) (+ (select .cse22 .cse4) (select .cse22 |c_main_~#array2~0.offset|) (select .cse23 .cse5) (select .cse23 .cse8) (select .cse22 .cse7) (select .cse23 |c_main_~#array1~0.offset|) (select .cse23 .cse2) c_main_~sum~0 (select .cse22 .cse6)))) 0)))))) .cse29) (or (let ((.cse40 (+ .cse42 .cse28))) (let ((.cse32 (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse16 .cse26 .cse40)))) (and (or (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse31 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse24 (let ((.cse33 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse33 .cse13) (select .cse33 .cse34)))))) (let ((.cse30 (select (store .cse32 |c_main_~#array2~0.base| .cse31) |c_main_~#array1~0.base|))) (+ (select .cse30 .cse2) (select .cse30 .cse5) (select .cse31 .cse6) (select .cse31 |c_main_~#array2~0.offset|) (select .cse30 .cse8) (select .cse31 .cse7) (select .cse31 .cse4) (select .cse30 |c_main_~#array1~0.offset|) c_main_~sum~0))) 0)) .cse21) (or (and (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse35 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse10 (let ((.cse37 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse37 .cse13) (select .cse37 .cse34)))))) (let ((.cse36 (select (store .cse32 |c_main_~#array2~0.base| .cse35) |c_main_~#array1~0.base|))) (+ (select .cse35 |c_main_~#array2~0.offset|) (select .cse36 .cse5) (select .cse36 |c_main_~#array1~0.offset|) (select .cse35 .cse6) (select .cse36 .cse8) (select .cse35 .cse4) (select .cse36 .cse2) (select .cse35 .cse7) c_main_~sum~0))) 0)) (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse39 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse10 (let ((.cse41 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse41 .cse13) (select .cse41 .cse34)))))) (let ((.cse38 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse16 .cse17 .cse40)) |c_main_~#array2~0.base| .cse39) |c_main_~#array1~0.base|))) (+ (select .cse38 |c_main_~#array1~0.offset|) (select .cse38 .cse2) (select .cse39 |c_main_~#array2~0.offset|) (select .cse38 .cse8) (select .cse38 .cse5) (select .cse39 .cse6) (select .cse39 .cse4) (select .cse39 .cse7) c_main_~sum~0))) 0))) .cse20)))) .cse43)))) (or (<= .cse0 2147483647) (let ((.cse49 (+ (- 17179869184) .cse44 |c_main_~#array2~0.offset|)) (.cse57 (select .cse16 (+ (- 17179869184) .cse44 |c_main_~#array1~0.offset|)))) (and (or (let ((.cse52 (+ .cse27 .cse57))) (let ((.cse47 (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse16 .cse26 .cse52)))) (and (or (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse46 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse24 (let ((.cse48 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse48 .cse12) (select .cse48 .cse49)))))) (let ((.cse45 (select (store .cse47 |c_main_~#array2~0.base| .cse46) |c_main_~#array1~0.base|))) (+ (select .cse45 .cse5) (select .cse45 .cse2) (select .cse45 |c_main_~#array1~0.offset|) (select .cse46 .cse7) (select .cse46 .cse4) (select .cse46 |c_main_~#array2~0.offset|) (select .cse46 .cse6) c_main_~sum~0 (select .cse45 .cse8)))) 0)) .cse21) (or (and (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse51 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse10 (let ((.cse53 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse53 .cse12) (select .cse53 .cse49)))))) (let ((.cse50 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse16 .cse17 .cse52)) |c_main_~#array2~0.base| .cse51) |c_main_~#array1~0.base|))) (+ (select .cse50 .cse2) (select .cse50 .cse5) (select .cse50 .cse8) (select .cse50 |c_main_~#array1~0.offset|) (select .cse51 |c_main_~#array2~0.offset|) (select .cse51 .cse6) (select .cse51 .cse7) (select .cse51 .cse4) c_main_~sum~0))) 0)) (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse55 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse10 (let ((.cse56 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse56 .cse12) (select .cse56 .cse49)))))) (let ((.cse54 (select (store .cse47 |c_main_~#array2~0.base| .cse55) |c_main_~#array1~0.base|))) (+ (select .cse54 .cse2) (select .cse54 |c_main_~#array1~0.offset|) (select .cse54 .cse5) (select .cse55 |c_main_~#array2~0.offset|) (select .cse54 .cse8) (select .cse55 .cse6) (select .cse55 .cse7) (select .cse55 .cse4) c_main_~sum~0))) 0))) .cse20)))) .cse29) (or (let ((.cse67 (+ .cse42 .cse57))) (let ((.cse60 (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse16 .cse26 .cse67)))) (and (or (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse59 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse24 (let ((.cse61 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse61 .cse34) (select .cse61 .cse49)))))) (let ((.cse58 (select (store .cse60 |c_main_~#array2~0.base| .cse59) |c_main_~#array1~0.base|))) (+ (select .cse58 .cse8) (select .cse59 |c_main_~#array2~0.offset|) (select .cse59 .cse6) (select .cse59 .cse7) (select .cse58 .cse5) (select .cse59 .cse4) (select .cse58 .cse2) c_main_~sum~0 (select .cse58 |c_main_~#array1~0.offset|)))) 0)) .cse21) (or .cse20 (and (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse63 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse10 (let ((.cse64 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse64 .cse34) (select .cse64 .cse49)))))) (let ((.cse62 (select (store .cse60 |c_main_~#array2~0.base| .cse63) |c_main_~#array1~0.base|))) (+ (select .cse62 .cse2) (select .cse63 |c_main_~#array2~0.offset|) (select .cse62 |c_main_~#array1~0.offset|) (select .cse63 .cse4) (select .cse62 .cse8) (select .cse62 .cse5) (select .cse63 .cse7) (select .cse63 .cse6) c_main_~sum~0))) 0)) (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse66 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse10 (let ((.cse68 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse68 .cse34) (select .cse68 .cse49)))))) (let ((.cse65 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse16 .cse17 .cse67)) |c_main_~#array2~0.base| .cse66) |c_main_~#array1~0.base|))) (+ (select .cse65 .cse2) (select .cse66 |c_main_~#array2~0.offset|) (select .cse65 .cse5) (select .cse65 .cse8) (select .cse66 .cse4) (select .cse66 .cse7) (select .cse65 |c_main_~#array1~0.offset|) (select .cse66 .cse6) c_main_~sum~0))) 0))))))) .cse43)))))))) is different from false [2023-03-30 22:28:37,619 WARN L839 $PredicateComparison]: unable to prove that (let ((.cse0 (+ c_main_~index~0 c_main_~pivot~0))) (or (< c_main_~index~0 c_main_~pivot~0) (<= c_~ARR_SIZE~0 .cse0) (let ((.cse70 (mod .cse0 4294967296)) (.cse73 (mod c_main_~index~0 4294967296))) (let ((.cse1 (mod (+ (* 4294967295 c_main_~pivot~0) c_main_~index~0) 4294967296)) (.cse72 (* 4 .cse73)) (.cse17 (select |c_#memory_int| |c_main_~#array1~0.base|)) (.cse71 (* 4 .cse70))) (let ((.cse13 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse71)) (.cse28 (select .cse17 (+ (- 17179869184) |c_main_~#array1~0.offset| .cse71))) (.cse30 (<= .cse70 2147483647)) (.cse25 (+ |c_main_~#array2~0.offset| .cse72)) (.cse22 (< 2147483647 .cse73)) (.cse21 (<= .cse73 2147483647)) (.cse3 (+ 12 |c_main_~#array1~0.offset|)) (.cse6 (+ |c_main_~#array1~0.offset| 4)) (.cse9 (+ 8 |c_main_~#array1~0.offset|)) (.cse5 (+ |c_main_~#array2~0.offset| 8)) (.cse8 (+ |c_main_~#array2~0.offset| 12)) (.cse7 (+ |c_main_~#array2~0.offset| 4)) (.cse18 (+ (- 17179869184) .cse72 |c_main_~#array1~0.offset|)) (.cse11 (+ (- 17179869184) |c_main_~#array2~0.offset| .cse72)) (.cse35 (+ |c_main_~#array2~0.offset| .cse71)) (.cse27 (+ .cse72 |c_main_~#array1~0.offset|)) (.cse43 (select .cse17 (+ |c_main_~#array1~0.offset| .cse71))) (.cse44 (< 2147483647 .cse70)) (.cse45 (* 4 .cse1))) (and (or (< 2147483647 .cse1) (let ((.cse14 (+ .cse45 |c_main_~#array2~0.offset|)) (.cse29 (select .cse17 (+ .cse45 |c_main_~#array1~0.offset|)))) (and (or (let ((.cse19 (+ .cse28 .cse29))) (let ((.cse10 (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse17 .cse27 .cse19)))) (and (or (and (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse4 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse11 (let ((.cse12 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse12 .cse13) (select .cse12 .cse14)))))) (let ((.cse2 (select (store .cse10 |c_main_~#array2~0.base| .cse4) |c_main_~#array1~0.base|))) (+ (select .cse2 .cse3) (select .cse4 .cse5) (select .cse2 .cse6) (select .cse4 .cse7) (select .cse4 .cse8) (select .cse2 |c_main_~#array1~0.offset|) (select .cse4 |c_main_~#array2~0.offset|) c_main_~sum~0 (select .cse2 .cse9)))) 0)) (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse15 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse11 (let ((.cse20 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse20 .cse13) (select .cse20 .cse14)))))) (let ((.cse16 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse17 .cse18 .cse19)) |c_main_~#array2~0.base| .cse15) |c_main_~#array1~0.base|))) (+ (select .cse15 .cse5) (select .cse16 .cse9) (select .cse15 .cse7) (select .cse15 .cse8) (select .cse16 |c_main_~#array1~0.offset|) (select .cse16 .cse6) (select .cse15 |c_main_~#array2~0.offset|) (select .cse16 .cse3) c_main_~sum~0))) 0))) .cse21) (or .cse22 (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse23 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse25 (let ((.cse26 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse26 .cse13) (select .cse26 .cse14)))))) (let ((.cse24 (select (store .cse10 |c_main_~#array2~0.base| .cse23) |c_main_~#array1~0.base|))) (+ (select .cse23 .cse5) (select .cse23 |c_main_~#array2~0.offset|) (select .cse24 .cse6) (select .cse24 .cse9) (select .cse23 .cse8) (select .cse24 |c_main_~#array1~0.offset|) (select .cse24 .cse3) c_main_~sum~0 (select .cse23 .cse7)))) 0)))))) .cse30) (or (let ((.cse41 (+ .cse43 .cse29))) (let ((.cse33 (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse17 .cse27 .cse41)))) (and (or (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse32 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse25 (let ((.cse34 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse34 .cse14) (select .cse34 .cse35)))))) (let ((.cse31 (select (store .cse33 |c_main_~#array2~0.base| .cse32) |c_main_~#array1~0.base|))) (+ (select .cse31 .cse3) (select .cse31 .cse6) (select .cse32 .cse7) (select .cse32 |c_main_~#array2~0.offset|) (select .cse31 .cse9) (select .cse32 .cse8) (select .cse32 .cse5) (select .cse31 |c_main_~#array1~0.offset|) c_main_~sum~0))) 0)) .cse22) (or (and (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse36 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse11 (let ((.cse38 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse38 .cse14) (select .cse38 .cse35)))))) (let ((.cse37 (select (store .cse33 |c_main_~#array2~0.base| .cse36) |c_main_~#array1~0.base|))) (+ (select .cse36 |c_main_~#array2~0.offset|) (select .cse37 .cse6) (select .cse37 |c_main_~#array1~0.offset|) (select .cse36 .cse7) (select .cse37 .cse9) (select .cse36 .cse5) (select .cse37 .cse3) (select .cse36 .cse8) c_main_~sum~0))) 0)) (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse40 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse11 (let ((.cse42 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse42 .cse14) (select .cse42 .cse35)))))) (let ((.cse39 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse17 .cse18 .cse41)) |c_main_~#array2~0.base| .cse40) |c_main_~#array1~0.base|))) (+ (select .cse39 |c_main_~#array1~0.offset|) (select .cse39 .cse3) (select .cse40 |c_main_~#array2~0.offset|) (select .cse39 .cse9) (select .cse39 .cse6) (select .cse40 .cse7) (select .cse40 .cse5) (select .cse40 .cse8) c_main_~sum~0))) 0))) .cse21)))) .cse44)))) (or (<= .cse1 2147483647) (let ((.cse50 (+ (- 17179869184) .cse45 |c_main_~#array2~0.offset|)) (.cse58 (select .cse17 (+ (- 17179869184) .cse45 |c_main_~#array1~0.offset|)))) (and (or (let ((.cse53 (+ .cse28 .cse58))) (let ((.cse48 (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse17 .cse27 .cse53)))) (and (or (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse47 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse25 (let ((.cse49 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse49 .cse13) (select .cse49 .cse50)))))) (let ((.cse46 (select (store .cse48 |c_main_~#array2~0.base| .cse47) |c_main_~#array1~0.base|))) (+ (select .cse46 .cse6) (select .cse46 .cse3) (select .cse46 |c_main_~#array1~0.offset|) (select .cse47 .cse8) (select .cse47 .cse5) (select .cse47 |c_main_~#array2~0.offset|) (select .cse47 .cse7) c_main_~sum~0 (select .cse46 .cse9)))) 0)) .cse22) (or (and (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse52 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse11 (let ((.cse54 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse54 .cse13) (select .cse54 .cse50)))))) (let ((.cse51 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse17 .cse18 .cse53)) |c_main_~#array2~0.base| .cse52) |c_main_~#array1~0.base|))) (+ (select .cse51 .cse3) (select .cse51 .cse6) (select .cse51 .cse9) (select .cse51 |c_main_~#array1~0.offset|) (select .cse52 |c_main_~#array2~0.offset|) (select .cse52 .cse7) (select .cse52 .cse8) (select .cse52 .cse5) c_main_~sum~0))) 0)) (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse56 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse11 (let ((.cse57 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse57 .cse13) (select .cse57 .cse50)))))) (let ((.cse55 (select (store .cse48 |c_main_~#array2~0.base| .cse56) |c_main_~#array1~0.base|))) (+ (select .cse55 .cse3) (select .cse55 |c_main_~#array1~0.offset|) (select .cse55 .cse6) (select .cse56 |c_main_~#array2~0.offset|) (select .cse55 .cse9) (select .cse56 .cse7) (select .cse56 .cse8) (select .cse56 .cse5) c_main_~sum~0))) 0))) .cse21)))) .cse30) (or (let ((.cse68 (+ .cse43 .cse58))) (let ((.cse61 (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse17 .cse27 .cse68)))) (and (or (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse60 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse25 (let ((.cse62 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse62 .cse35) (select .cse62 .cse50)))))) (let ((.cse59 (select (store .cse61 |c_main_~#array2~0.base| .cse60) |c_main_~#array1~0.base|))) (+ (select .cse59 .cse9) (select .cse60 |c_main_~#array2~0.offset|) (select .cse60 .cse7) (select .cse60 .cse8) (select .cse59 .cse6) (select .cse60 .cse5) (select .cse59 .cse3) c_main_~sum~0 (select .cse59 |c_main_~#array1~0.offset|)))) 0)) .cse22) (or .cse21 (and (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse64 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse11 (let ((.cse65 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse65 .cse35) (select .cse65 .cse50)))))) (let ((.cse63 (select (store .cse61 |c_main_~#array2~0.base| .cse64) |c_main_~#array1~0.base|))) (+ (select .cse63 .cse3) (select .cse64 |c_main_~#array2~0.offset|) (select .cse63 |c_main_~#array1~0.offset|) (select .cse64 .cse5) (select .cse63 .cse9) (select .cse63 .cse6) (select .cse64 .cse8) (select .cse64 .cse7) c_main_~sum~0))) 0)) (forall ((v_ArrVal_522 (Array Int Int)) (v_ArrVal_521 (Array Int Int))) (= (let ((.cse67 (store (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_521) |c_main_~#array2~0.base|) .cse11 (let ((.cse69 (select (store |c_#memory_int| |c_main_~#array1~0.base| v_ArrVal_522) |c_main_~#array2~0.base|))) (+ (select .cse69 .cse35) (select .cse69 .cse50)))))) (let ((.cse66 (select (store (store |c_#memory_int| |c_main_~#array1~0.base| (store .cse17 .cse18 .cse68)) |c_main_~#array2~0.base| .cse67) |c_main_~#array1~0.base|))) (+ (select .cse66 .cse3) (select .cse67 |c_main_~#array2~0.offset|) (select .cse66 .cse6) (select .cse66 .cse9) (select .cse67 .cse5) (select .cse67 .cse8) (select .cse66 |c_main_~#array1~0.offset|) (select .cse67 .cse7) c_main_~sum~0))) 0))))))) .cse44)))))))))) is different from false [2023-03-30 22:28:37,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:28:37,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811190949] [2023-03-30 22:28:37,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:28:37,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1245594131] [2023-03-30 22:28:37,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1245594131] provided 0 perfect and 1 imperfect interpolant sequences [2023-03-30 22:28:37,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2023-03-30 22:28:37,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [29] total 29 [2023-03-30 22:28:37,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1017786137] [2023-03-30 22:28:37,923 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2023-03-30 22:28:37,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2023-03-30 22:28:37,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:28:37,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2023-03-30 22:28:37,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=162, Invalid=1326, Unknown=2, NotChecked=150, Total=1640 [2023-03-30 22:28:37,925 INFO L87 Difference]: Start difference. First operand 71 states and 78 transitions. Second operand has 29 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 24 states have internal predecessors, (35), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-03-30 22:28:43,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:28:43,009 INFO L93 Difference]: Finished difference Result 102 states and 114 transitions. [2023-03-30 22:28:43,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2023-03-30 22:28:43,010 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 24 states have internal predecessors, (35), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) Word has length 48 [2023-03-30 22:28:43,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:28:43,011 INFO L225 Difference]: With dead ends: 102 [2023-03-30 22:28:43,011 INFO L226 Difference]: Without dead ends: 97 [2023-03-30 22:28:43,012 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 22 SyntacticMatches, 3 SemanticMatches, 56 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 791 ImplicationChecksByTransitivity, 9.9s TimeCoverageRelationStatistics Valid=334, Invalid=2752, Unknown=2, NotChecked=218, Total=3306 [2023-03-30 22:28:43,013 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 59 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 651 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 253 SdHoareTripleChecker+Invalid, 670 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 651 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2023-03-30 22:28:43,013 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 253 Invalid, 670 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 651 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2023-03-30 22:28:43,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 97 states. [2023-03-30 22:28:43,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 97 to 85. [2023-03-30 22:28:43,047 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 66 states have (on average 1.106060606060606) internal successors, (73), 66 states have internal predecessors, (73), 12 states have call successors, (12), 8 states have call predecessors, (12), 6 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2023-03-30 22:28:43,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 95 transitions. [2023-03-30 22:28:43,047 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 95 transitions. Word has length 48 [2023-03-30 22:28:43,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:28:43,047 INFO L495 AbstractCegarLoop]: Abstraction has 85 states and 95 transitions. [2023-03-30 22:28:43,048 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 27 states have (on average 1.2962962962962963) internal successors, (35), 24 states have internal predecessors, (35), 4 states have call successors, (6), 3 states have call predecessors, (6), 3 states have return successors, (4), 4 states have call predecessors, (4), 3 states have call successors, (4) [2023-03-30 22:28:43,048 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 95 transitions. [2023-03-30 22:28:43,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-03-30 22:28:43,048 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:28:43,049 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:28:43,054 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2023-03-30 22:28:43,249 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:43,249 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:28:43,250 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:28:43,250 INFO L85 PathProgramCache]: Analyzing trace with hash 171195185, now seen corresponding path program 8 times [2023-03-30 22:28:43,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:28:43,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1914080771] [2023-03-30 22:28:43,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:28:43,250 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:28:43,259 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:28:43,259 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [232257586] [2023-03-30 22:28:43,259 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-03-30 22:28:43,259 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:43,260 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:28:43,260 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:28:43,262 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2023-03-30 22:28:43,349 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-03-30 22:28:43,349 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:28:43,350 INFO L262 TraceCheckSpWp]: Trace formula consists of 225 conjuncts, 12 conjunts are in the unsatisfiable core [2023-03-30 22:28:43,351 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:28:43,469 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 33 proven. 16 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-30 22:28:43,469 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:28:43,567 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-03-30 22:28:43,568 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:28:43,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1914080771] [2023-03-30 22:28:43,568 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:28:43,568 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [232257586] [2023-03-30 22:28:43,568 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [232257586] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:28:43,568 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:28:43,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2023-03-30 22:28:43,568 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221401626] [2023-03-30 22:28:43,568 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:28:43,568 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-03-30 22:28:43,569 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:28:43,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-03-30 22:28:43,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-03-30 22:28:43,569 INFO L87 Difference]: Start difference. First operand 85 states and 95 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-30 22:28:43,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:28:43,817 INFO L93 Difference]: Finished difference Result 129 states and 142 transitions. [2023-03-30 22:28:43,817 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2023-03-30 22:28:43,818 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2023-03-30 22:28:43,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:28:43,818 INFO L225 Difference]: With dead ends: 129 [2023-03-30 22:28:43,818 INFO L226 Difference]: Without dead ends: 112 [2023-03-30 22:28:43,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 77 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 167 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=220, Invalid=592, Unknown=0, NotChecked=0, Total=812 [2023-03-30 22:28:43,819 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 48 mSDsluCounter, 155 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:28:43,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 185 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:28:43,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2023-03-30 22:28:43,839 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 94. [2023-03-30 22:28:43,840 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 72 states have (on average 1.0972222222222223) internal successors, (79), 72 states have internal predecessors, (79), 14 states have call successors, (14), 9 states have call predecessors, (14), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-03-30 22:28:43,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 105 transitions. [2023-03-30 22:28:43,840 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 105 transitions. Word has length 50 [2023-03-30 22:28:43,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:28:43,840 INFO L495 AbstractCegarLoop]: Abstraction has 94 states and 105 transitions. [2023-03-30 22:28:43,840 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-30 22:28:43,840 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 105 transitions. [2023-03-30 22:28:43,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2023-03-30 22:28:43,841 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:28:43,841 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:28:43,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2023-03-30 22:28:44,046 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2023-03-30 22:28:44,046 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:28:44,046 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:28:44,047 INFO L85 PathProgramCache]: Analyzing trace with hash 326503509, now seen corresponding path program 9 times [2023-03-30 22:28:44,047 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:28:44,047 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104694895] [2023-03-30 22:28:44,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:28:44,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:28:44,056 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:28:44,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1840833656] [2023-03-30 22:28:44,056 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-03-30 22:28:44,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:44,056 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:28:44,057 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:28:44,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2023-03-30 22:28:44,409 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2023-03-30 22:28:44,409 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:28:44,411 INFO L262 TraceCheckSpWp]: Trace formula consists of 233 conjuncts, 12 conjunts are in the unsatisfiable core [2023-03-30 22:28:44,412 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:28:44,543 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 24 proven. 25 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2023-03-30 22:28:44,543 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-03-30 22:28:44,644 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 16 proven. 25 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2023-03-30 22:28:44,644 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-03-30 22:28:44,644 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104694895] [2023-03-30 22:28:44,645 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-03-30 22:28:44,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840833656] [2023-03-30 22:28:44,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840833656] provided 0 perfect and 2 imperfect interpolant sequences [2023-03-30 22:28:44,645 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-03-30 22:28:44,645 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13] total 18 [2023-03-30 22:28:44,645 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [827121462] [2023-03-30 22:28:44,645 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-03-30 22:28:44,645 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2023-03-30 22:28:44,645 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-03-30 22:28:44,646 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2023-03-30 22:28:44,646 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=83, Invalid=223, Unknown=0, NotChecked=0, Total=306 [2023-03-30 22:28:44,646 INFO L87 Difference]: Start difference. First operand 94 states and 105 transitions. Second operand has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-30 22:28:44,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-03-30 22:28:44,875 INFO L93 Difference]: Finished difference Result 115 states and 125 transitions. [2023-03-30 22:28:44,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2023-03-30 22:28:44,875 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 50 [2023-03-30 22:28:44,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-03-30 22:28:44,876 INFO L225 Difference]: With dead ends: 115 [2023-03-30 22:28:44,876 INFO L226 Difference]: Without dead ends: 110 [2023-03-30 22:28:44,876 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 77 SyntacticMatches, 6 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 191 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2023-03-30 22:28:44,877 INFO L413 NwaCegarLoop]: 40 mSDtfsCounter, 52 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-03-30 22:28:44,877 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 182 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-03-30 22:28:44,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2023-03-30 22:28:44,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 96. [2023-03-30 22:28:44,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 74 states have (on average 1.0945945945945945) internal successors, (81), 74 states have internal predecessors, (81), 14 states have call successors, (14), 9 states have call predecessors, (14), 7 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2023-03-30 22:28:44,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 107 transitions. [2023-03-30 22:28:44,898 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 107 transitions. Word has length 50 [2023-03-30 22:28:44,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-03-30 22:28:44,898 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 107 transitions. [2023-03-30 22:28:44,898 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.611111111111111) internal successors, (47), 18 states have internal predecessors, (47), 3 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2023-03-30 22:28:44,898 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 107 transitions. [2023-03-30 22:28:44,898 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2023-03-30 22:28:44,899 INFO L187 NwaCegarLoop]: Found error trace [2023-03-30 22:28:44,899 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-03-30 22:28:44,906 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2023-03-30 22:28:45,106 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:45,107 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-03-30 22:28:45,107 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-03-30 22:28:45,107 INFO L85 PathProgramCache]: Analyzing trace with hash 1167659699, now seen corresponding path program 10 times [2023-03-30 22:28:45,107 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-03-30 22:28:45,107 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [996435618] [2023-03-30 22:28:45,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-03-30 22:28:45,107 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-03-30 22:28:45,116 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-03-30 22:28:45,116 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1873919246] [2023-03-30 22:28:45,116 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-03-30 22:28:45,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-03-30 22:28:45,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-03-30 22:28:45,117 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2023-03-30 22:28:45,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2023-03-30 22:28:46,062 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2023-03-30 22:28:46,062 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-03-30 22:28:46,065 WARN L260 TraceCheckSpWp]: Trace formula consists of 238 conjuncts, 127 conjunts are in the unsatisfiable core [2023-03-30 22:28:46,070 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-03-30 22:28:46,100 INFO L350 Elim1Store]: Elim1 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 10 treesize of output 8 [2023-03-30 22:28:46,121 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:46,123 INFO L350 Elim1Store]: Elim1 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 19 treesize of output 23 [2023-03-30 22:28:46,126 INFO L350 Elim1Store]: Elim1 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 20 treesize of output 20 [2023-03-30 22:28:46,129 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-03-30 22:28:46,135 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2023-03-30 22:28:46,223 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 37 [2023-03-30 22:28:46,330 INFO L321 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2023-03-30 22:28:46,331 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 4 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 7 case distinctions, treesize of input 58 treesize of output 59 [2023-03-30 22:28:46,461 INFO L321 Elim1Store]: treesize reduction 43, result has 14.0 percent of original size [2023-03-30 22:28:46,462 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 6 select indices, 6 select index equivalence classes, 7 disjoint index pairs (out of 15 index pairs), introduced 6 new quantified variables, introduced 16 case distinctions, treesize of input 74 treesize of output 81 [2023-03-30 22:28:46,622 INFO L321 Elim1Store]: treesize reduction 51, result has 12.1 percent of original size [2023-03-30 22:28:46,624 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 8 select indices, 8 select index equivalence classes, 11 disjoint index pairs (out of 28 index pairs), introduced 8 new quantified variables, introduced 29 case distinctions, treesize of input 90 treesize of output 103 [2023-03-30 22:28:48,030 INFO L321 Elim1Store]: treesize reduction 18, result has 35.7 percent of original size [2023-03-30 22:28:48,030 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 3 case distinctions, treesize of input 861 treesize of output 790 [2023-03-30 22:28:48,088 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,103 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,136 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,172 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,204 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,218 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,265 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,284 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,313 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,325 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,331 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,357 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:48,374 INFO L217 Elim1Store]: Index analysis took 298 ms [2023-03-30 22:28:48,420 INFO L321 Elim1Store]: treesize reduction 147, result has 0.7 percent of original size [2023-03-30 22:28:48,420 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 9 select indices, 9 select index equivalence classes, 46 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 9 case distinctions, treesize of input 375 treesize of output 381 [2023-03-30 22:28:49,007 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,023 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,045 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,069 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,083 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,096 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,130 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,147 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,166 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,179 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,190 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,213 INFO L190 IndexEqualityManager]: detected not equals via solver [2023-03-30 22:28:49,224 INFO L217 Elim1Store]: Index analysis took 230 ms [2023-03-30 22:28:49,276 INFO L321 Elim1Store]: treesize reduction 147, result has 0.7 percent of original size [2023-03-30 22:28:49,276 INFO L350 Elim1Store]: Elim1 eliminated variable of array dimension 1, 2 stores, 9 select indices, 9 select index equivalence classes, 46 disjoint index pairs (out of 36 index pairs), introduced 11 new quantified variables, introduced 9 case distinctions, treesize of input 228 treesize of output 314 [2023-03-30 22:28:54,570 WARN L207 Elim1Store]: Array PQE input equivalent to false