/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data --core.log.level.for.class de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/array-fpi/ifncomp.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-a10ec3b [2022-01-09 23:20:54,340 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-09 23:20:54,342 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-09 23:20:54,393 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-01-09 23:20:54,394 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-01-09 23:20:54,395 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-01-09 23:20:54,406 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-01-09 23:20:54,408 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-01-09 23:20:54,409 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-01-09 23:20:54,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-01-09 23:20:54,411 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-01-09 23:20:54,412 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-01-09 23:20:54,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-09 23:20:54,413 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-09 23:20:54,414 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-09 23:20:54,415 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-09 23:20:54,415 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-09 23:20:54,416 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-09 23:20:54,417 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-09 23:20:54,419 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-09 23:20:54,420 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-09 23:20:54,436 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-09 23:20:54,437 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-09 23:20:54,438 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-09 23:20:54,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-09 23:20:54,446 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-09 23:20:54,447 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-09 23:20:54,447 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-09 23:20:54,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/BvToInt/svcomp-Reach-64bit-Automizer_Default.epf [2022-01-09 23:20:54,478 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-09 23:20:54,479 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-09 23:20:54,479 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-09 23:20:54,479 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-09 23:20:54,480 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-09 23:20:54,480 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-09 23:20:54,480 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-09 23:20:54,480 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-09 23:20:54,481 INFO L138 SettingsManager]: * Use SBE=true [2022-01-09 23:20:54,481 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-09 23:20:54,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-09 23:20:54,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-09 23:20:54,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-09 23:20:54,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-09 23:20:54,481 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-09 23:20:54,482 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2022-01-09 23:20:54,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-09 23:20:54,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-09 23:20:54,482 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-09 23:20:54,482 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-09 23:20:54,482 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-09 23:20:54,482 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 23:20:54,483 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-09 23:20:54,483 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-09 23:20:54,483 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-09 23:20:54,483 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-09 23:20:54,483 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-09 23:20:54,483 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-09 23:20:54,484 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2022-01-09 23:20:54,484 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-09 23:20:54,484 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.core: Log level for class -> de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=WARN; [2022-01-09 23:20:54,662 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-09 23:20:54,684 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-09 23:20:54,685 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-09 23:20:54,686 INFO L271 PluginConnector]: Initializing CDTParser... [2022-01-09 23:20:54,686 INFO L275 PluginConnector]: CDTParser initialized [2022-01-09 23:20:54,687 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/array-fpi/ifncomp.c [2022-01-09 23:20:54,755 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ef661c6/5c07e8463c1544349eb5cc1d5007dbf4/FLAG6dc9c05d2 [2022-01-09 23:20:55,120 INFO L306 CDTParser]: Found 1 translation units. [2022-01-09 23:20:55,121 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifncomp.c [2022-01-09 23:20:55,129 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ef661c6/5c07e8463c1544349eb5cc1d5007dbf4/FLAG6dc9c05d2 [2022-01-09 23:20:55,138 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c2ef661c6/5c07e8463c1544349eb5cc1d5007dbf4 [2022-01-09 23:20:55,140 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-09 23:20:55,141 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-01-09 23:20:55,142 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-01-09 23:20:55,142 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-01-09 23:20:55,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-01-09 23:20:55,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,146 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5a261c93 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55, skipping insertion in model container [2022-01-09 23:20:55,147 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,152 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-01-09 23:20:55,162 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-01-09 23:20:55,305 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifncomp.c[590,603] [2022-01-09 23:20:55,350 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 23:20:55,356 INFO L203 MainTranslator]: Completed pre-run [2022-01-09 23:20:55,366 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/array-fpi/ifncomp.c[590,603] [2022-01-09 23:20:55,373 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-01-09 23:20:55,386 INFO L208 MainTranslator]: Completed translation [2022-01-09 23:20:55,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55 WrapperNode [2022-01-09 23:20:55,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-01-09 23:20:55,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-09 23:20:55,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-09 23:20:55,388 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-09 23:20:55,393 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,425 INFO L137 Inliner]: procedures = 16, calls = 24, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 92 [2022-01-09 23:20:55,426 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-09 23:20:55,427 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-09 23:20:55,427 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-09 23:20:55,427 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-09 23:20:55,434 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,434 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,446 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,446 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,461 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,463 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-09 23:20:55,463 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-09 23:20:55,464 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-09 23:20:55,464 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-09 23:20:55,469 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (1/1) ... [2022-01-09 23:20:55,475 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-09 23:20:55,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:20:55,501 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-09 23:20:55,522 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-09 23:20:55,542 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-01-09 23:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-01-09 23:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-01-09 23:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-01-09 23:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-09 23:20:55,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-09 23:20:55,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-01-09 23:20:55,619 INFO L234 CfgBuilder]: Building ICFG [2022-01-09 23:20:55,621 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-09 23:20:55,844 INFO L275 CfgBuilder]: Performing block encoding [2022-01-09 23:20:55,850 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-09 23:20:55,850 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2022-01-09 23:20:55,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 11:20:55 BoogieIcfgContainer [2022-01-09 23:20:55,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-09 23:20:55,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-09 23:20:55,853 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-09 23:20:55,856 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-09 23:20:55,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.01 11:20:55" (1/3) ... [2022-01-09 23:20:55,857 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dea38f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 11:20:55, skipping insertion in model container [2022-01-09 23:20:55,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.01 11:20:55" (2/3) ... [2022-01-09 23:20:55,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dea38f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.01 11:20:55, skipping insertion in model container [2022-01-09 23:20:55,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.01 11:20:55" (3/3) ... [2022-01-09 23:20:55,859 INFO L111 eAbstractionObserver]: Analyzing ICFG ifncomp.c [2022-01-09 23:20:55,863 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-09 23:20:55,864 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-09 23:20:55,907 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-09 23:20:55,915 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-09 23:20:55,915 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2022-01-09 23:20:55,930 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 25 states have (on average 1.6) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:55,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-09 23:20:55,943 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:20:55,943 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:20:55,944 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:20:55,948 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:20:55,948 INFO L85 PathProgramCache]: Analyzing trace with hash 1152450264, now seen corresponding path program 1 times [2022-01-09 23:20:55,964 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:20:55,966 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476200757] [2022-01-09 23:20:55,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:20:55,967 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:20:56,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:20:56,120 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:20:56,121 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:20:56,121 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1476200757] [2022-01-09 23:20:56,121 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1476200757] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:20:56,121 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:20:56,122 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-01-09 23:20:56,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [553342814] [2022-01-09 23:20:56,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:20:56,127 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-01-09 23:20:56,127 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:20:56,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-01-09 23:20:56,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-09 23:20:56,159 INFO L87 Difference]: Start difference. First operand has 27 states, 25 states have (on average 1.6) internal successors, (40), 26 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:56,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:20:56,176 INFO L93 Difference]: Finished difference Result 50 states and 74 transitions. [2022-01-09 23:20:56,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-09 23:20:56,178 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-01-09 23:20:56,178 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:20:56,184 INFO L225 Difference]: With dead ends: 50 [2022-01-09 23:20:56,185 INFO L226 Difference]: Without dead ends: 23 [2022-01-09 23:20:56,187 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-01-09 23:20:56,193 INFO L933 BasicCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-09 23:20:56,194 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-09 23:20:56,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2022-01-09 23:20:56,223 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2022-01-09 23:20:56,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.3181818181818181) internal successors, (29), 22 states have internal predecessors, (29), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:56,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 29 transitions. [2022-01-09 23:20:56,227 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 29 transitions. Word has length 14 [2022-01-09 23:20:56,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:20:56,227 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 29 transitions. [2022-01-09 23:20:56,228 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.0) internal successors, (14), 2 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:56,228 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 29 transitions. [2022-01-09 23:20:56,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-01-09 23:20:56,229 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:20:56,229 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:20:56,230 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-09 23:20:56,230 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:20:56,233 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:20:56,233 INFO L85 PathProgramCache]: Analyzing trace with hash 670750212, now seen corresponding path program 1 times [2022-01-09 23:20:56,233 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:20:56,233 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120418579] [2022-01-09 23:20:56,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:20:56,234 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:20:56,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:20:56,347 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:20:56,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:20:56,348 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120418579] [2022-01-09 23:20:56,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1120418579] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:20:56,348 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:20:56,349 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-01-09 23:20:56,349 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [756089809] [2022-01-09 23:20:56,349 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:20:56,350 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-09 23:20:56,350 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:20:56,351 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-09 23:20:56,351 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-09 23:20:56,352 INFO L87 Difference]: Start difference. First operand 23 states and 29 transitions. Second operand has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:56,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:20:56,435 INFO L93 Difference]: Finished difference Result 56 states and 74 transitions. [2022-01-09 23:20:56,435 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-01-09 23:20:56,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-01-09 23:20:56,436 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:20:56,436 INFO L225 Difference]: With dead ends: 56 [2022-01-09 23:20:56,436 INFO L226 Difference]: Without dead ends: 38 [2022-01-09 23:20:56,437 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-01-09 23:20:56,438 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 30 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:20:56,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [30 Valid, 19 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:20:56,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-01-09 23:20:56,443 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 29. [2022-01-09 23:20:56,444 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 28 states have (on average 1.25) internal successors, (35), 28 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:56,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 35 transitions. [2022-01-09 23:20:56,445 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 35 transitions. Word has length 14 [2022-01-09 23:20:56,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:20:56,445 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 35 transitions. [2022-01-09 23:20:56,445 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 3.5) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:56,445 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 35 transitions. [2022-01-09 23:20:56,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-01-09 23:20:56,446 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:20:56,446 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:20:56,446 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-09 23:20:56,446 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:20:56,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:20:56,447 INFO L85 PathProgramCache]: Analyzing trace with hash -1978137699, now seen corresponding path program 1 times [2022-01-09 23:20:56,447 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:20:56,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1120492468] [2022-01-09 23:20:56,448 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:20:56,448 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:20:56,478 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:20:56,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1284314969] [2022-01-09 23:20:56,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:20:56,479 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:20:56,479 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:20:56,480 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) [2022-01-09 23:20:56,481 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-01-09 23:20:56,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:20:56,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 13 conjunts are in the unsatisfiable core [2022-01-09 23:20:56,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:20:56,658 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-09 23:20:56,768 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-09 23:20:56,768 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-01-09 23:20:56,768 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:20:56,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1120492468] [2022-01-09 23:20:56,769 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:20:56,769 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284314969] [2022-01-09 23:20:56,769 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284314969] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-09 23:20:56,769 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-09 23:20:56,769 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-09 23:20:56,770 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833473517] [2022-01-09 23:20:56,770 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-09 23:20:56,770 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-01-09 23:20:56,770 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:20:56,771 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-01-09 23:20:56,771 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2022-01-09 23:20:56,771 INFO L87 Difference]: Start difference. First operand 29 states and 35 transitions. Second operand has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:56,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:20:56,854 INFO L93 Difference]: Finished difference Result 37 states and 43 transitions. [2022-01-09 23:20:56,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-09 23:20:56,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-01-09 23:20:56,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:20:56,855 INFO L225 Difference]: With dead ends: 37 [2022-01-09 23:20:56,855 INFO L226 Difference]: Without dead ends: 35 [2022-01-09 23:20:56,856 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2022-01-09 23:20:56,857 INFO L933 BasicCegarLoop]: 22 mSDtfsCounter, 20 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 39 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 39 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:20:56,857 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [20 Valid, 56 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 39 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:20:56,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-01-09 23:20:56,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2022-01-09 23:20:56,861 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.2333333333333334) internal successors, (37), 30 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:56,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 37 transitions. [2022-01-09 23:20:56,862 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 37 transitions. Word has length 23 [2022-01-09 23:20:56,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:20:56,862 INFO L470 AbstractCegarLoop]: Abstraction has 31 states and 37 transitions. [2022-01-09 23:20:56,863 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:56,863 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 37 transitions. [2022-01-09 23:20:56,863 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-01-09 23:20:56,863 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:20:56,863 INFO L514 BasicCegarLoop]: trace histogram [2, 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] [2022-01-09 23:20:56,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2022-01-09 23:20:57,091 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:20:57,092 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:20:57,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:20:57,093 INFO L85 PathProgramCache]: Analyzing trace with hash -100913581, now seen corresponding path program 1 times [2022-01-09 23:20:57,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:20:57,093 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950455028] [2022-01-09 23:20:57,093 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:20:57,093 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:20:57,130 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:20:57,130 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1757587354] [2022-01-09 23:20:57,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:20:57,130 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:20:57,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:20:57,136 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:20:57,139 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-09 23:20:57,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:20:57,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 6 conjunts are in the unsatisfiable core [2022-01-09 23:20:57,215 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:20:57,341 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-09 23:20:57,341 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:20:57,421 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-01-09 23:20:57,421 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:20:57,421 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950455028] [2022-01-09 23:20:57,422 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:20:57,422 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1757587354] [2022-01-09 23:20:57,422 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1757587354] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:20:57,422 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-09 23:20:57,422 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2022-01-09 23:20:57,422 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [744033520] [2022-01-09 23:20:57,422 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-09 23:20:57,423 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2022-01-09 23:20:57,423 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:20:57,423 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2022-01-09 23:20:57,424 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2022-01-09 23:20:57,424 INFO L87 Difference]: Start difference. First operand 31 states and 37 transitions. Second operand has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:57,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:20:57,583 INFO L93 Difference]: Finished difference Result 87 states and 105 transitions. [2022-01-09 23:20:57,584 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-01-09 23:20:57,585 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-01-09 23:20:57,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:20:57,585 INFO L225 Difference]: With dead ends: 87 [2022-01-09 23:20:57,585 INFO L226 Difference]: Without dead ends: 51 [2022-01-09 23:20:57,586 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=87, Unknown=0, NotChecked=0, Total=132 [2022-01-09 23:20:57,587 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 49 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 110 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 43 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 110 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:20:57,588 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [49 Valid, 43 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 110 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:20:57,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2022-01-09 23:20:57,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 37. [2022-01-09 23:20:57,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 36 states have (on average 1.1944444444444444) internal successors, (43), 36 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:57,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-01-09 23:20:57,593 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 27 [2022-01-09 23:20:57,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:20:57,594 INFO L470 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-01-09 23:20:57,594 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.6666666666666665) internal successors, (33), 9 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:20:57,594 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-01-09 23:20:57,595 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2022-01-09 23:20:57,595 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:20:57,595 INFO L514 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:20:57,614 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-09 23:20:57,807 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-01-09 23:20:57,808 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:20:57,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:20:57,808 INFO L85 PathProgramCache]: Analyzing trace with hash -2051071008, now seen corresponding path program 1 times [2022-01-09 23:20:57,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:20:57,809 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [950688396] [2022-01-09 23:20:57,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:20:57,809 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:20:57,837 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:20:57,837 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1197934635] [2022-01-09 23:20:57,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:20:57,837 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:20:57,837 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:20:57,838 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:20:57,855 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-09 23:20:57,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-09 23:20:57,908 INFO L263 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 35 conjunts are in the unsatisfiable core [2022-01-09 23:20:57,911 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:20:57,951 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 98 treesize of output 94 [2022-01-09 23:20:58,119 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-09 23:20:58,295 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:20:58,297 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-01-09 23:20:58,394 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-01-09 23:20:58,489 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:20:58,490 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 38 treesize of output 32 [2022-01-09 23:20:58,744 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2022-01-09 23:20:58,745 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:21:01,095 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_48| Int)) (or (forall ((~N~0 Int) (v_ArrVal_128 Int)) (= (+ ~N~0 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_48| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_128)))) (store .cse0 |c_ULTIMATE.start_main_~c~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| ~N~0))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) (+ ~N~0 1))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_48|)))) is different from false [2022-01-09 23:21:01,364 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 11 refuted. 0 times theorem prover too weak. 5 trivial. 1 not checked. [2022-01-09 23:21:01,364 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:21:01,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [950688396] [2022-01-09 23:21:01,365 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:21:01,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1197934635] [2022-01-09 23:21:01,365 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1197934635] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:21:01,365 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-09 23:21:01,365 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14] total 25 [2022-01-09 23:21:01,365 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [933212424] [2022-01-09 23:21:01,365 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-09 23:21:01,366 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-01-09 23:21:01,366 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:21:01,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-01-09 23:21:01,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=114, Invalid=441, Unknown=1, NotChecked=44, Total=600 [2022-01-09 23:21:01,367 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 25 states, 25 states have (on average 2.48) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:21:03,453 WARN L838 $PredicateComparison]: unable to prove that (and (= |c_ULTIMATE.start_main_~i~0#1| 0) (= 0 |c_ULTIMATE.start_main_~b~0#1.offset|) (= (select (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|) 1) (= |c_ULTIMATE.start_main_~c~0#1.offset| 0) (forall ((|v_ULTIMATE.start_main_~i~0#1_48| Int)) (or (forall ((~N~0 Int) (v_ArrVal_128 Int)) (= (+ ~N~0 (select (select (let ((.cse0 (store |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~b~0#1.base|) (+ (* |v_ULTIMATE.start_main_~i~0#1_48| 8) |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_128)))) (store .cse0 |c_ULTIMATE.start_main_~c~0#1.base| (store (select .cse0 |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| ~N~0))) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|)) (+ ~N~0 1))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_48|)))) (not (= |c_ULTIMATE.start_main_~b~0#1.base| |c_ULTIMATE.start_main_~c~0#1.base|))) is different from false [2022-01-09 23:21:03,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:21:03,847 INFO L93 Difference]: Finished difference Result 83 states and 99 transitions. [2022-01-09 23:21:03,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 25 states. [2022-01-09 23:21:03,848 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 36 [2022-01-09 23:21:03,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:21:03,848 INFO L225 Difference]: With dead ends: 83 [2022-01-09 23:21:03,848 INFO L226 Difference]: Without dead ends: 61 [2022-01-09 23:21:03,850 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 46 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 308 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=190, Invalid=808, Unknown=2, NotChecked=122, Total=1122 [2022-01-09 23:21:03,850 INFO L933 BasicCegarLoop]: 11 mSDtfsCounter, 27 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 26 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 321 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 26 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 97 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-01-09 23:21:03,851 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [27 Valid, 74 Invalid, 321 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [26 Valid, 198 Invalid, 0 Unknown, 97 Unchecked, 0.2s Time] [2022-01-09 23:21:03,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2022-01-09 23:21:03,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 48. [2022-01-09 23:21:03,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 47 states have (on average 1.1702127659574468) internal successors, (55), 47 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:21:03,857 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 55 transitions. [2022-01-09 23:21:03,857 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 55 transitions. Word has length 36 [2022-01-09 23:21:03,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:21:03,857 INFO L470 AbstractCegarLoop]: Abstraction has 48 states and 55 transitions. [2022-01-09 23:21:03,857 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 2.48) internal successors, (62), 25 states have internal predecessors, (62), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:21:03,857 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 55 transitions. [2022-01-09 23:21:03,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-01-09 23:21:03,858 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:21:03,858 INFO L514 BasicCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:21:03,884 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-01-09 23:21:04,079 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:21:04,080 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:21:04,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:21:04,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1866238698, now seen corresponding path program 2 times [2022-01-09 23:21:04,080 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:21:04,080 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138835474] [2022-01-09 23:21:04,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:21:04,081 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:21:04,113 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:21:04,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [197739422] [2022-01-09 23:21:04,114 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-09 23:21:04,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:21:04,120 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:21:04,122 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:21:04,123 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-09 23:21:04,252 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-09 23:21:04,252 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:21:04,254 INFO L263 TraceCheckSpWp]: Trace formula consists of 167 conjuncts, 8 conjunts are in the unsatisfiable core [2022-01-09 23:21:04,256 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:21:04,389 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-09 23:21:04,389 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:21:04,489 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 8 proven. 5 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-01-09 23:21:04,489 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:21:04,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138835474] [2022-01-09 23:21:04,490 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:21:04,490 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [197739422] [2022-01-09 23:21:04,490 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [197739422] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:21:04,490 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-09 23:21:04,490 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-01-09 23:21:04,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1269011889] [2022-01-09 23:21:04,491 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-09 23:21:04,492 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-09 23:21:04,492 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:21:04,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-09 23:21:04,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-01-09 23:21:04,493 INFO L87 Difference]: Start difference. First operand 48 states and 55 transitions. Second operand has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:21:04,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:21:04,683 INFO L93 Difference]: Finished difference Result 151 states and 174 transitions. [2022-01-09 23:21:04,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-01-09 23:21:04,683 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-01-09 23:21:04,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:21:04,685 INFO L225 Difference]: With dead ends: 151 [2022-01-09 23:21:04,685 INFO L226 Difference]: Without dead ends: 92 [2022-01-09 23:21:04,686 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 82 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=74, Invalid=166, Unknown=0, NotChecked=0, Total=240 [2022-01-09 23:21:04,687 INFO L933 BasicCegarLoop]: 14 mSDtfsCounter, 114 mSDsluCounter, 55 mSDsCounter, 0 mSdLazyCounter, 182 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 114 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 255 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 182 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:21:04,687 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [114 Valid, 69 Invalid, 255 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 182 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:21:04,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-01-09 23:21:04,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 66. [2022-01-09 23:21:04,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 66 states, 65 states have (on average 1.1692307692307693) internal successors, (76), 65 states have internal predecessors, (76), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:21:04,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 66 states to 66 states and 76 transitions. [2022-01-09 23:21:04,703 INFO L78 Accepts]: Start accepts. Automaton has 66 states and 76 transitions. Word has length 40 [2022-01-09 23:21:04,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:21:04,703 INFO L470 AbstractCegarLoop]: Abstraction has 66 states and 76 transitions. [2022-01-09 23:21:04,703 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.8333333333333335) internal successors, (46), 12 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:21:04,703 INFO L276 IsEmpty]: Start isEmpty. Operand 66 states and 76 transitions. [2022-01-09 23:21:04,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-01-09 23:21:04,704 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:21:04,704 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:21:04,733 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-09 23:21:04,905 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:21:04,905 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:21:04,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:21:04,906 INFO L85 PathProgramCache]: Analyzing trace with hash -175718331, now seen corresponding path program 3 times [2022-01-09 23:21:04,906 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:21:04,906 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [642680146] [2022-01-09 23:21:04,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:21:04,906 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:21:04,930 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:21:04,931 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1354108926] [2022-01-09 23:21:04,931 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-09 23:21:04,931 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:21:04,931 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:21:04,932 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:21:04,939 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-09 23:21:05,065 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2022-01-09 23:21:05,065 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:21:05,068 INFO L263 TraceCheckSpWp]: Trace formula consists of 181 conjuncts, 12 conjunts are in the unsatisfiable core [2022-01-09 23:21:05,070 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:21:05,210 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 18 proven. 9 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-09 23:21:05,210 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:21:05,318 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 5 proven. 22 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-01-09 23:21:05,319 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:21:05,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [642680146] [2022-01-09 23:21:05,319 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:21:05,319 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1354108926] [2022-01-09 23:21:05,319 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1354108926] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-09 23:21:05,319 INFO L186 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-01-09 23:21:05,319 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 12 [2022-01-09 23:21:05,320 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1536579960] [2022-01-09 23:21:05,320 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-01-09 23:21:05,320 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-01-09 23:21:05,320 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-09 23:21:05,321 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-01-09 23:21:05,321 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2022-01-09 23:21:05,321 INFO L87 Difference]: Start difference. First operand 66 states and 76 transitions. Second operand has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:21:05,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-09 23:21:05,499 INFO L93 Difference]: Finished difference Result 121 states and 138 transitions. [2022-01-09 23:21:05,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-01-09 23:21:05,499 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-01-09 23:21:05,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-09 23:21:05,500 INFO L225 Difference]: With dead ends: 121 [2022-01-09 23:21:05,500 INFO L226 Difference]: Without dead ends: 62 [2022-01-09 23:21:05,501 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 53 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=99, Invalid=243, Unknown=0, NotChecked=0, Total=342 [2022-01-09 23:21:05,502 INFO L933 BasicCegarLoop]: 16 mSDtfsCounter, 128 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-01-09 23:21:05,502 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [128 Valid, 46 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-01-09 23:21:05,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-01-09 23:21:05,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 50. [2022-01-09 23:21:05,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 49 states have (on average 1.0816326530612246) internal successors, (53), 49 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:21:05,508 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-01-09 23:21:05,508 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 48 [2022-01-09 23:21:05,509 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-09 23:21:05,509 INFO L470 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-01-09 23:21:05,509 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 3.75) internal successors, (45), 12 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-09 23:21:05,509 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-01-09 23:21:05,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2022-01-09 23:21:05,510 INFO L506 BasicCegarLoop]: Found error trace [2022-01-09 23:21:05,510 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-01-09 23:21:05,537 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-09 23:21:05,734 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:21:05,735 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2022-01-09 23:21:05,735 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-09 23:21:05,735 INFO L85 PathProgramCache]: Analyzing trace with hash 132233513, now seen corresponding path program 4 times [2022-01-09 23:21:05,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-09 23:21:05,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1413669461] [2022-01-09 23:21:05,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-09 23:21:05,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-09 23:21:05,762 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-01-09 23:21:05,763 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [898219272] [2022-01-09 23:21:05,763 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-09 23:21:05,763 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:21:05,763 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-09 23:21:05,769 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-01-09 23:21:05,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-09 23:21:05,845 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-09 23:21:05,845 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-09 23:21:05,847 INFO L263 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 71 conjunts are in the unsatisfiable core [2022-01-09 23:21:05,852 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-09 23:21:05,872 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-09 23:21:05,873 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 108 treesize of output 102 [2022-01-09 23:21:05,938 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2022-01-09 23:21:06,029 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,030 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-01-09 23:21:06,100 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,101 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 23 treesize of output 22 [2022-01-09 23:21:06,184 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 2 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 18 [2022-01-09 23:21:06,273 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:21:06,274 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,275 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,276 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:21:06,280 INFO L353 Elim1Store]: treesize reduction 19, result has 5.0 percent of original size [2022-01-09 23:21:06,280 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 3 new quantified variables, introduced 5 case distinctions, treesize of input 49 treesize of output 50 [2022-01-09 23:21:06,383 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,384 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,385 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,394 INFO L353 Elim1Store]: treesize reduction 7, result has 12.5 percent of original size [2022-01-09 23:21:06,394 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 4 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 47 treesize of output 44 [2022-01-09 23:21:06,533 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,543 INFO L353 Elim1Store]: treesize reduction 21, result has 34.4 percent of original size [2022-01-09 23:21:06,543 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 3 case distinctions, treesize of input 41 treesize of output 46 [2022-01-09 23:21:06,656 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:21:06,657 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:21:06,658 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,659 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 65 treesize of output 58 [2022-01-09 23:21:06,803 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,804 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,805 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,806 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-01-09 23:21:06,806 INFO L173 IndexEqualityManager]: detected equality via solver [2022-01-09 23:21:06,810 INFO L353 Elim1Store]: treesize reduction 16, result has 5.9 percent of original size [2022-01-09 23:21:06,810 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 4 select indices, 4 select index equivalence classes, 3 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 72 treesize of output 58 [2022-01-09 23:21:07,268 INFO L353 Elim1Store]: treesize reduction 13, result has 23.5 percent of original size [2022-01-09 23:21:07,269 INFO L387 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 3 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 81 treesize of output 41 [2022-01-09 23:21:07,291 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 2 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-09 23:21:07,291 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-09 23:21:13,937 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_104| Int)) (or (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_104|)) (forall ((v_ArrVal_301 Int) (~N~0 Int) (v_ArrVal_295 Int)) (= (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse0 (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_104|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_295)))) (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| (store (let ((.cse5 (store (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse5 .cse3 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| .cse5) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_301))))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| ~N~0))) (let ((.cse2 (select (select (store .cse0 |c_ULTIMATE.start_main_~c~0#1.base| .cse1) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ ~N~0 (select (select (store .cse0 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse1 (+ 8 |c_ULTIMATE.start_main_~c~0#1.offset|) (+ ~N~0 .cse2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse3) .cse2))))) (+ ~N~0 8))))) is different from false [2022-01-09 23:21:16,032 WARN L838 $PredicateComparison]: unable to prove that (forall ((v_ArrVal_301 Int) (|v_ULTIMATE.start_main_~i~0#1_104| Int) (~N~0 Int) (v_ArrVal_295 Int) (v_ArrVal_294 Int)) (or (= (+ ~N~0 8) (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse1 (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |c_ULTIMATE.start_main_~i~0#1|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_294) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_104|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_295)))) (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| (store (let ((.cse5 (store (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse5 .cse3 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| .cse5) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_301))))) (let ((.cse2 (store (select .cse1 |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| ~N~0))) (let ((.cse0 (select (select (store .cse1 |c_ULTIMATE.start_main_~c~0#1.base| .cse2) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ ~N~0 .cse0 (select (select (store .cse1 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse2 (+ 8 |c_ULTIMATE.start_main_~c~0#1.offset|) (+ ~N~0 .cse0))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse3))))))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_104|)))) is different from false [2022-01-09 23:21:18,266 WARN L838 $PredicateComparison]: unable to prove that (forall ((|v_ULTIMATE.start_main_~i~0#1_105| Int)) (or (forall ((v_ArrVal_301 Int) (|v_ULTIMATE.start_main_~i~0#1_104| Int) (~N~0 Int) (v_ArrVal_295 Int) (v_ArrVal_294 Int)) (or (= (let ((.cse3 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|))) (let ((.cse0 (let ((.cse4 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| (store (store (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_105|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_294) (+ (* 8 |v_ULTIMATE.start_main_~i~0#1_104|) |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_295)))) (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| (store (let ((.cse5 (store (select .cse4 |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset| 1))) (store .cse5 .cse3 (+ (select (select (store .cse4 |c_ULTIMATE.start_main_~b~0#1.base| .cse5) |c_ULTIMATE.start_main_~a~0#1.base|) |c_ULTIMATE.start_main_~a~0#1.offset|) 1))) (+ 16 |c_ULTIMATE.start_main_~b~0#1.offset|) v_ArrVal_301))))) (let ((.cse1 (store (select .cse0 |c_ULTIMATE.start_main_~c~0#1.base|) |c_ULTIMATE.start_main_~c~0#1.offset| ~N~0))) (let ((.cse2 (select (select (store .cse0 |c_ULTIMATE.start_main_~c~0#1.base| .cse1) |c_ULTIMATE.start_main_~b~0#1.base|) |c_ULTIMATE.start_main_~b~0#1.offset|))) (+ (select (select (store .cse0 |c_ULTIMATE.start_main_~c~0#1.base| (store .cse1 (+ 8 |c_ULTIMATE.start_main_~c~0#1.offset|) (+ ~N~0 .cse2))) |c_ULTIMATE.start_main_~b~0#1.base|) .cse3) ~N~0 .cse2))))) (+ ~N~0 8)) (not (<= (+ |v_ULTIMATE.start_main_~i~0#1_105| 1) |v_ULTIMATE.start_main_~i~0#1_104|)))) (not (<= (+ |c_ULTIMATE.start_main_~i~0#1| 1) |v_ULTIMATE.start_main_~i~0#1_105|)))) is different from false [2022-01-09 23:21:19,495 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-09 23:21:19,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1413669461] [2022-01-09 23:21:19,495 WARN L312 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-01-09 23:21:19,495 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [898219272] [2022-01-09 23:21:19,495 WARN L320 FreeRefinementEngine]: Global settings require throwing the following exception [2022-01-09 23:21:19,518 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-09 23:21:19,715 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-09 23:21:19,716 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction has thrown an exception: java.lang.ArithmeticException: BigInteger out of long range at java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.computeDerApplicabilityScore(QuantifierPusher.java:685) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.selectBestEliminatee(QuantifierPusher.java:668) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.doit(QuantifierPusher.java:604) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective2(QuantifierPusher.java:446) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher.tryToPushOverDualFiniteConnective(QuantifierPusher.java:355) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:172) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.convert(QuantifierPushTermWalker.java:1) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:65) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.TermContextTransformationEngine.transform(TermContextTransformationEngine.java:61) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:261) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.QuantifierPushTermWalker.eliminate(QuantifierPushTermWalker.java:247) at de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.PartialQuantifierElimination.eliminate(PartialQuantifierElimination.java:92) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer$QuantifierEliminationPostprocessor.postprocess(IterativePredicateTransformer.java:238) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:420) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeBackwardSequence(IterativePredicateTransformer.java:399) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.predicates.IterativePredicateTransformer.computeWeakestPreconditionSequence(IterativePredicateTransformer.java:271) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:342) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:185) at de.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:163) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:108) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleSpWp.construct(IpTcStrategyModuleSpWp.java:1) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.getOrConstruct(IpTcStrategyModuleBase.java:100) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.IpTcStrategyModuleBase.isCorrect(IpTcStrategyModuleBase.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.checkFeasibility(AutomatonFreeRefinementEngine.java:211) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.executeStrategy(AutomatonFreeRefinementEngine.java:124) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.AutomatonFreeRefinementEngine.(AutomatonFreeRefinementEngine.java:88) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:76) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:610) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:413) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.startCegar(AbstractCegarLoop.java:348) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.runCegar(AbstractCegarLoop.java:330) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.CegarLoopUtils.getCegarLoopResult(CegarLoopUtils.java:56) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.executeCegarLoop(TraceAbstractionStarter.java:393) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseProgram(TraceAbstractionStarter.java:303) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.analyseSequentialProgram(TraceAbstractionStarter.java:263) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:176) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:155) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2022-01-09 23:21:19,719 INFO L158 Benchmark]: Toolchain (without parser) took 24577.85ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 132.1MB in the beginning and 121.7MB in the end (delta: 10.3MB). Peak memory consumption was 100.6MB. Max. memory is 8.0GB. [2022-01-09 23:21:19,719 INFO L158 Benchmark]: CDTParser took 0.15ms. Allocated memory is still 182.5MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-09 23:21:19,720 INFO L158 Benchmark]: CACSL2BoogieTranslator took 244.61ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 131.9MB in the beginning and 196.2MB in the end (delta: -64.4MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. [2022-01-09 23:21:19,720 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.55ms. Allocated memory is still 219.2MB. Free memory was 196.2MB in the beginning and 194.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-09 23:21:19,720 INFO L158 Benchmark]: Boogie Preprocessor took 36.02ms. Allocated memory is still 219.2MB. Free memory was 194.7MB in the beginning and 193.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-09 23:21:19,720 INFO L158 Benchmark]: RCFGBuilder took 388.39ms. Allocated memory is still 219.2MB. Free memory was 193.6MB in the beginning and 181.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. [2022-01-09 23:21:19,721 INFO L158 Benchmark]: TraceAbstraction took 23865.17ms. Allocated memory is still 219.2MB. Free memory was 180.5MB in the beginning and 121.7MB in the end (delta: 58.8MB). Peak memory consumption was 112.8MB. Max. memory is 8.0GB. [2022-01-09 23:21:19,722 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15ms. Allocated memory is still 182.5MB. Free memory is still 148.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 244.61ms. Allocated memory was 182.5MB in the beginning and 219.2MB in the end (delta: 36.7MB). Free memory was 131.9MB in the beginning and 196.2MB in the end (delta: -64.4MB). Peak memory consumption was 9.7MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.55ms. Allocated memory is still 219.2MB. Free memory was 196.2MB in the beginning and 194.7MB in the end (delta: 1.6MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 36.02ms. Allocated memory is still 219.2MB. Free memory was 194.7MB in the beginning and 193.6MB in the end (delta: 1.0MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 388.39ms. Allocated memory is still 219.2MB. Free memory was 193.6MB in the beginning and 181.0MB in the end (delta: 12.6MB). Peak memory consumption was 12.6MB. Max. memory is 8.0GB. * TraceAbstraction took 23865.17ms. Allocated memory is still 219.2MB. Free memory was 180.5MB in the beginning and 121.7MB in the end (delta: 58.8MB). Peak memory consumption was 112.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: ArithmeticException: BigInteger out of long range de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: ArithmeticException: BigInteger out of long range: java.base/java.math.BigInteger.longValueExact(BigInteger.java:4765) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2022-01-09 23:21:19,764 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...