/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-fpi/eqn3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:26:58,420 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:26:58,423 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:26:58,458 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:26:58,471 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 10:26:58,472 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 10:26:58,473 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 10:26:58,475 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 10:26:58,476 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 10:26:58,477 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 10:26:58,479 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 10:26:58,482 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 10:26:58,484 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 10:26:58,486 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 10:26:58,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 10:26:58,489 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 10:26:58,494 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 10:26:58,504 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:26:58,506 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:26:58,506 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:26:58,508 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:26:58,538 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:26:58,539 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:26:58,539 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:26:58,539 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:26:58,540 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:26:58,540 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:26:58,541 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:26:58,541 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:26:58,542 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:26:58,542 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:26:58,542 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:26:58,542 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:26:58,543 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:26:58,543 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:26:58,543 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:26:58,543 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:26:58,543 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:26:58,544 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:26:58,544 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:26:58,544 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:26:58,544 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:26:58,544 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:26:58,545 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:26:58,545 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:26:58,545 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:26:58,545 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:26:58,546 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:26:58,546 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:26:58,546 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:26:58,546 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:26:58,546 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:26:58,547 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:26:58,547 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:26:58,547 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:26:58,953 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:26:58,978 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:26:58,981 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:26:58,983 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:26:58,984 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:26:58,985 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-fpi/eqn3.c [2022-10-16 10:26:59,059 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b3d2dfc5/de10f719e7724882acbc440b45b44a79/FLAG8c5ecc518 [2022-10-16 10:26:59,746 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:26:59,747 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn3.c [2022-10-16 10:26:59,758 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b3d2dfc5/de10f719e7724882acbc440b45b44a79/FLAG8c5ecc518 [2022-10-16 10:27:00,083 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1b3d2dfc5/de10f719e7724882acbc440b45b44a79 [2022-10-16 10:27:00,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:27:00,092 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:27:00,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:27:00,094 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:27:00,098 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:27:00,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,100 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@33bb3d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00, skipping insertion in model container [2022-10-16 10:27:00,100 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:27:00,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:27:00,288 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn3.c[587,600] [2022-10-16 10:27:00,312 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:27:00,323 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:27:00,346 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-fpi/eqn3.c[587,600] [2022-10-16 10:27:00,362 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:27:00,378 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:27:00,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00 WrapperNode [2022-10-16 10:27:00,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:27:00,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:27:00,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:27:00,381 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:27:00,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,398 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,427 INFO L138 Inliner]: procedures = 16, calls = 26, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 105 [2022-10-16 10:27:00,428 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:27:00,429 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:27:00,429 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:27:00,429 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:27:00,440 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,443 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,451 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,464 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:27:00,473 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:27:00,474 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:27:00,477 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:27:00,478 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (1/1) ... [2022-10-16 10:27:00,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:27:00,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:00,514 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:27:00,535 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:27:00,574 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:27:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:27:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:27:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 10:27:00,575 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:27:00,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:27:00,576 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:27:00,656 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:27:00,659 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:27:01,054 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:27:01,064 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:27:01,064 INFO L300 CfgBuilder]: Removed 3 assume(true) statements. [2022-10-16 10:27:01,070 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:27:01 BoogieIcfgContainer [2022-10-16 10:27:01,070 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:27:01,076 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:27:01,076 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:27:01,083 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:27:01,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:27:00" (1/3) ... [2022-10-16 10:27:01,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:27:01, skipping insertion in model container [2022-10-16 10:27:01,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:27:00" (2/3) ... [2022-10-16 10:27:01,085 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3c1b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:27:01, skipping insertion in model container [2022-10-16 10:27:01,085 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:27:01" (3/3) ... [2022-10-16 10:27:01,086 INFO L112 eAbstractionObserver]: Analyzing ICFG eqn3.c [2022-10-16 10:27:01,109 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:27:01,110 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 26 error locations. [2022-10-16 10:27:01,195 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:27:01,211 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@6c485255, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:27:01,212 INFO L358 AbstractCegarLoop]: Starting to check reachability of 26 error locations. [2022-10-16 10:27:01,218 INFO L276 IsEmpty]: Start isEmpty. Operand has 72 states, 45 states have (on average 1.7777777777777777) internal successors, (80), 71 states have internal predecessors, (80), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:01,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:27:01,227 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:01,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:01,230 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:01,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:01,239 INFO L85 PathProgramCache]: Analyzing trace with hash 1806845353, now seen corresponding path program 1 times [2022-10-16 10:27:01,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:01,254 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1049386022] [2022-10-16 10:27:01,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:01,255 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:01,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:01,599 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:01,600 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1049386022] [2022-10-16 10:27:01,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1049386022] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:01,601 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:27:01,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:27:01,603 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982870720] [2022-10-16 10:27:01,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:01,611 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2022-10-16 10:27:01,613 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:01,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2022-10-16 10:27:01,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2022-10-16 10:27:01,666 INFO L87 Difference]: Start difference. First operand has 72 states, 45 states have (on average 1.7777777777777777) internal successors, (80), 71 states have internal predecessors, (80), 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 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:01,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:01,704 INFO L93 Difference]: Finished difference Result 137 states and 154 transitions. [2022-10-16 10:27:01,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-10-16 10:27:01,707 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 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 7 [2022-10-16 10:27:01,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:01,719 INFO L225 Difference]: With dead ends: 137 [2022-10-16 10:27:01,720 INFO L226 Difference]: Without dead ends: 64 [2022-10-16 10:27:01,724 INFO L412 NwaCegarLoop]: 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 [2022-10-16 10:27:01,735 INFO L413 NwaCegarLoop]: 72 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, 72 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 [2022-10-16 10:27:01,738 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 72 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:27:01,756 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2022-10-16 10:27:01,774 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2022-10-16 10:27:01,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 64 states, 41 states have (on average 1.6097560975609757) internal successors, (66), 63 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:01,777 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 66 transitions. [2022-10-16 10:27:01,779 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 66 transitions. Word has length 7 [2022-10-16 10:27:01,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:01,779 INFO L495 AbstractCegarLoop]: Abstraction has 64 states and 66 transitions. [2022-10-16 10:27:01,780 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:01,780 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 66 transitions. [2022-10-16 10:27:01,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-16 10:27:01,781 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:01,781 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:01,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:27:01,782 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:01,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:01,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1806904935, now seen corresponding path program 1 times [2022-10-16 10:27:01,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:01,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77502710] [2022-10-16 10:27:01,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:01,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:01,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:01,975 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:01,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:01,976 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77502710] [2022-10-16 10:27:01,977 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77502710] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:01,977 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:27:01,978 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:27:01,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427084888] [2022-10-16 10:27:01,978 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:01,980 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:27:01,982 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:01,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:27:01,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:27:01,985 INFO L87 Difference]: Start difference. First operand 64 states and 66 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:15,704 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 13.52s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-16 10:27:15,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:15,733 INFO L93 Difference]: Finished difference Result 98 states and 102 transitions. [2022-10-16 10:27:15,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:27:15,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 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 7 [2022-10-16 10:27:15,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:15,736 INFO L225 Difference]: With dead ends: 98 [2022-10-16 10:27:15,736 INFO L226 Difference]: Without dead ends: 92 [2022-10-16 10:27:15,737 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:27:15,739 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 25 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 7 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:15,740 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 72 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 57 Invalid, 1 Unknown, 0 Unchecked, 13.7s Time] [2022-10-16 10:27:15,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-10-16 10:27:15,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 72. [2022-10-16 10:27:15,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 49 states have (on average 1.5510204081632653) internal successors, (76), 71 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) [2022-10-16 10:27:15,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 76 transitions. [2022-10-16 10:27:15,752 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 76 transitions. Word has length 7 [2022-10-16 10:27:15,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:15,752 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 76 transitions. [2022-10-16 10:27:15,752 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:15,753 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 76 transitions. [2022-10-16 10:27:15,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:27:15,753 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:15,754 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:15,754 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:27:15,754 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:15,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:15,755 INFO L85 PathProgramCache]: Analyzing trace with hash 1268856745, now seen corresponding path program 1 times [2022-10-16 10:27:15,755 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:15,756 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1359808043] [2022-10-16 10:27:15,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:15,756 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:15,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:16,604 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:16,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:16,604 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1359808043] [2022-10-16 10:27:16,605 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1359808043] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:16,605 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:27:16,605 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:27:16,606 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [244114278] [2022-10-16 10:27:16,606 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:16,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:27:16,607 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:16,607 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:27:16,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:27:16,608 INFO L87 Difference]: Start difference. First operand 72 states and 76 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:28,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.79s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2022-10-16 10:27:28,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:28,654 INFO L93 Difference]: Finished difference Result 92 states and 97 transitions. [2022-10-16 10:27:28,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:27:28,655 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 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 9 [2022-10-16 10:27:28,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:28,656 INFO L225 Difference]: With dead ends: 92 [2022-10-16 10:27:28,657 INFO L226 Difference]: Without dead ends: 90 [2022-10-16 10:27:28,658 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:27:28,659 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 17 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 3 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:28,660 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 120 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 76 Invalid, 1 Unknown, 0 Unchecked, 12.0s Time] [2022-10-16 10:27:28,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 90 states. [2022-10-16 10:27:28,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 90 to 74. [2022-10-16 10:27:28,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 51 states have (on average 1.5294117647058822) internal successors, (78), 73 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:28,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 78 transitions. [2022-10-16 10:27:28,673 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 78 transitions. Word has length 9 [2022-10-16 10:27:28,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:28,673 INFO L495 AbstractCegarLoop]: Abstraction has 74 states and 78 transitions. [2022-10-16 10:27:28,674 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:28,674 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 78 transitions. [2022-10-16 10:27:28,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:27:28,675 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:28,675 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:28,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 10:27:28,676 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:28,676 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:28,677 INFO L85 PathProgramCache]: Analyzing trace with hash -441222445, now seen corresponding path program 1 times [2022-10-16 10:27:28,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:28,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1758777970] [2022-10-16 10:27:28,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:28,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:28,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:28,743 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:28,743 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:28,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1758777970] [2022-10-16 10:27:28,744 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1758777970] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:28,745 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:27:28,745 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 10:27:28,745 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [723505914] [2022-10-16 10:27:28,745 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:28,746 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 10:27:28,746 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:28,747 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 10:27:28,747 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:27:28,747 INFO L87 Difference]: Start difference. First operand 74 states and 78 transitions. Second operand has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:29,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:29,215 INFO L93 Difference]: Finished difference Result 99 states and 103 transitions. [2022-10-16 10:27:29,216 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 10:27:29,217 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 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 11 [2022-10-16 10:27:29,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:29,218 INFO L225 Difference]: With dead ends: 99 [2022-10-16 10:27:29,219 INFO L226 Difference]: Without dead ends: 92 [2022-10-16 10:27:29,219 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 10:27:29,221 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 16 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 57 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 74 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 57 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:29,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 74 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 57 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-16 10:27:29,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2022-10-16 10:27:29,231 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 84. [2022-10-16 10:27:29,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 61 states have (on average 1.4426229508196722) internal successors, (88), 83 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:29,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2022-10-16 10:27:29,234 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 11 [2022-10-16 10:27:29,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:29,235 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2022-10-16 10:27:29,235 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.5) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:29,235 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2022-10-16 10:27:29,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 10:27:29,236 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:29,236 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:29,237 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 10:27:29,237 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:29,238 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:29,238 INFO L85 PathProgramCache]: Analyzing trace with hash 504177845, now seen corresponding path program 1 times [2022-10-16 10:27:29,238 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:29,239 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1959430717] [2022-10-16 10:27:29,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:29,239 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:29,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:29,305 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:29,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:29,306 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1959430717] [2022-10-16 10:27:29,306 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1959430717] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:29,306 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:27:29,307 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:27:29,307 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2093615170] [2022-10-16 10:27:29,307 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:29,308 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:27:29,308 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:29,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:27:29,309 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:27:29,309 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:29,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:29,438 INFO L93 Difference]: Finished difference Result 100 states and 104 transitions. [2022-10-16 10:27:29,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:27:29,439 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 10:27:29,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:29,440 INFO L225 Difference]: With dead ends: 100 [2022-10-16 10:27:29,441 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 10:27:29,441 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:27:29,443 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 18 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:29,444 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 117 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:27:29,445 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 10:27:29,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 87. [2022-10-16 10:27:29,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 64 states have (on average 1.421875) internal successors, (91), 86 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:29,454 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2022-10-16 10:27:29,455 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 12 [2022-10-16 10:27:29,455 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:29,455 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2022-10-16 10:27:29,455 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:29,456 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2022-10-16 10:27:29,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 10:27:29,457 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:29,457 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:29,457 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 10:27:29,457 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:29,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:29,458 INFO L85 PathProgramCache]: Analyzing trace with hash 1224983743, now seen corresponding path program 1 times [2022-10-16 10:27:29,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:29,459 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1660579896] [2022-10-16 10:27:29,459 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:29,459 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:29,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:29,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:29,540 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:29,541 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1660579896] [2022-10-16 10:27:29,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1660579896] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:29,541 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:27:29,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 10:27:29,542 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [339820746] [2022-10-16 10:27:29,542 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:29,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:27:29,543 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:29,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:27:29,544 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:27:29,544 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:41,055 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 11.38s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2022-10-16 10:27:41,080 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:41,080 INFO L93 Difference]: Finished difference Result 192 states and 198 transitions. [2022-10-16 10:27:41,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:27:41,081 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 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 13 [2022-10-16 10:27:41,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:41,082 INFO L225 Difference]: With dead ends: 192 [2022-10-16 10:27:41,082 INFO L226 Difference]: Without dead ends: 134 [2022-10-16 10:27:41,083 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:27:41,084 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 49 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 6 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.5s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:41,085 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 123 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 99 Invalid, 1 Unknown, 0 Unchecked, 11.5s Time] [2022-10-16 10:27:41,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2022-10-16 10:27:41,093 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 89. [2022-10-16 10:27:41,094 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 66 states have (on average 1.4090909090909092) internal successors, (93), 88 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:41,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 93 transitions. [2022-10-16 10:27:41,096 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 93 transitions. Word has length 13 [2022-10-16 10:27:41,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:41,096 INFO L495 AbstractCegarLoop]: Abstraction has 89 states and 93 transitions. [2022-10-16 10:27:41,096 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.6) internal successors, (13), 5 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:41,096 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 93 transitions. [2022-10-16 10:27:41,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 10:27:41,097 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:41,097 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:41,098 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:27:41,098 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:41,099 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:41,099 INFO L85 PathProgramCache]: Analyzing trace with hash 461611375, now seen corresponding path program 1 times [2022-10-16 10:27:41,099 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:41,099 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221884725] [2022-10-16 10:27:41,099 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:41,100 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:41,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:41,190 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:41,190 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:41,190 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221884725] [2022-10-16 10:27:41,190 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221884725] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:27:41,191 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [327331158] [2022-10-16 10:27:41,191 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:41,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:41,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:41,196 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) [2022-10-16 10:27:41,216 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:27:41,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:41,280 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:27:41,285 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:41,342 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:41,342 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:27:41,384 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:41,384 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [327331158] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:27:41,385 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:27:41,385 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-10-16 10:27:41,385 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762068770] [2022-10-16 10:27:41,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:27:41,386 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:27:41,386 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:41,387 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:27:41,387 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:27:41,387 INFO L87 Difference]: Start difference. First operand 89 states and 93 transitions. Second operand has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 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) [2022-10-16 10:27:41,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:41,607 INFO L93 Difference]: Finished difference Result 120 states and 127 transitions. [2022-10-16 10:27:41,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:27:41,607 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 15 [2022-10-16 10:27:41,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:41,609 INFO L225 Difference]: With dead ends: 120 [2022-10-16 10:27:41,609 INFO L226 Difference]: Without dead ends: 118 [2022-10-16 10:27:41,609 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:27:41,611 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 164 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 168 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 164 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 201 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 168 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:41,611 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [164 Valid, 90 Invalid, 201 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 168 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:27:41,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2022-10-16 10:27:41,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 87. [2022-10-16 10:27:41,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 66 states have (on average 1.378787878787879) internal successors, (91), 86 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:41,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 91 transitions. [2022-10-16 10:27:41,621 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 91 transitions. Word has length 15 [2022-10-16 10:27:41,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:41,621 INFO L495 AbstractCegarLoop]: Abstraction has 87 states and 91 transitions. [2022-10-16 10:27:41,621 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.888888888888889) internal successors, (35), 10 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) [2022-10-16 10:27:41,622 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 91 transitions. [2022-10-16 10:27:41,622 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 10:27:41,622 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:41,622 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:41,667 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:41,836 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:41,837 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:41,838 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:41,839 INFO L85 PathProgramCache]: Analyzing trace with hash 1425050793, now seen corresponding path program 1 times [2022-10-16 10:27:41,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:41,839 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [330344808] [2022-10-16 10:27:41,840 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:41,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:41,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:41,925 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:41,925 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:41,925 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [330344808] [2022-10-16 10:27:41,926 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [330344808] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:27:41,926 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [200805710] [2022-10-16 10:27:41,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:41,926 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:41,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:41,928 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:27:41,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:27:42,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:42,022 INFO L263 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:27:42,023 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:42,068 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:42,068 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:27:42,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [200805710] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:42,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:27:42,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 10:27:42,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [313603660] [2022-10-16 10:27:42,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:42,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:27:42,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:42,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:27:42,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:27:42,071 INFO L87 Difference]: Start difference. First operand 87 states and 91 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:42,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:42,207 INFO L93 Difference]: Finished difference Result 97 states and 101 transitions. [2022-10-16 10:27:42,208 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:27:42,208 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 10:27:42,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:42,209 INFO L225 Difference]: With dead ends: 97 [2022-10-16 10:27:42,209 INFO L226 Difference]: Without dead ends: 95 [2022-10-16 10:27:42,210 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:27:42,211 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 30 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 104 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:42,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 114 Invalid, 104 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:27:42,212 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 95 states. [2022-10-16 10:27:42,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 95 to 84. [2022-10-16 10:27:42,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 84 states, 65 states have (on average 1.353846153846154) internal successors, (88), 83 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:42,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 84 states to 84 states and 88 transitions. [2022-10-16 10:27:42,219 INFO L78 Accepts]: Start accepts. Automaton has 84 states and 88 transitions. Word has length 16 [2022-10-16 10:27:42,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:42,220 INFO L495 AbstractCegarLoop]: Abstraction has 84 states and 88 transitions. [2022-10-16 10:27:42,220 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:42,220 INFO L276 IsEmpty]: Start isEmpty. Operand 84 states and 88 transitions. [2022-10-16 10:27:42,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-16 10:27:42,221 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:42,221 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:42,265 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:42,436 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-16 10:27:42,436 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:42,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:42,437 INFO L85 PathProgramCache]: Analyzing trace with hash 1226901681, now seen corresponding path program 1 times [2022-10-16 10:27:42,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:42,438 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [935524832] [2022-10-16 10:27:42,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:42,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:42,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:43,679 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:43,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:43,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [935524832] [2022-10-16 10:27:43,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [935524832] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:27:43,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [589640494] [2022-10-16 10:27:43,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:43,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:43,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:43,682 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:27:43,689 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:27:43,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:43,769 INFO L263 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 21 conjunts are in the unsatisfiable core [2022-10-16 10:27:43,772 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:43,826 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-10-16 10:27:43,836 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:27:43,838 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 10:27:43,846 INFO L390 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 10 treesize of output 8 [2022-10-16 10:27:43,977 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 74 treesize of output 65 [2022-10-16 10:27:43,995 INFO L356 Elim1Store]: treesize reduction 96, result has 1.0 percent of original size [2022-10-16 10:27:43,996 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 64 treesize of output 113 [2022-10-16 10:27:44,036 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-16 10:27:44,236 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:27:44,236 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 32 treesize of output 12 [2022-10-16 10:27:44,255 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:44,255 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:27:44,696 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:44,696 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [589640494] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:27:44,696 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:27:44,696 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 18 [2022-10-16 10:27:44,697 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843581722] [2022-10-16 10:27:44,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:27:44,697 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:27:44,697 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:44,698 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:27:44,698 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=278, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:27:44,699 INFO L87 Difference]: Start difference. First operand 84 states and 88 transitions. Second operand has 19 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 19 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:46,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:46,166 INFO L93 Difference]: Finished difference Result 137 states and 145 transitions. [2022-10-16 10:27:46,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-10-16 10:27:46,167 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 19 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-16 10:27:46,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:46,169 INFO L225 Difference]: With dead ends: 137 [2022-10-16 10:27:46,169 INFO L226 Difference]: Without dead ends: 136 [2022-10-16 10:27:46,170 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 137 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=151, Invalid=661, Unknown=0, NotChecked=0, Total=812 [2022-10-16 10:27:46,171 INFO L413 NwaCegarLoop]: 34 mSDtfsCounter, 110 mSDsluCounter, 248 mSDsCounter, 0 mSdLazyCounter, 556 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 110 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 587 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 556 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 8 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:46,171 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [110 Valid, 282 Invalid, 587 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 556 Invalid, 0 Unknown, 8 Unchecked, 1.0s Time] [2022-10-16 10:27:46,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 136 states. [2022-10-16 10:27:46,186 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 136 to 97. [2022-10-16 10:27:46,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 97 states, 78 states have (on average 1.3461538461538463) internal successors, (105), 96 states have internal predecessors, (105), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:46,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 97 states to 97 states and 105 transitions. [2022-10-16 10:27:46,191 INFO L78 Accepts]: Start accepts. Automaton has 97 states and 105 transitions. Word has length 17 [2022-10-16 10:27:46,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:46,191 INFO L495 AbstractCegarLoop]: Abstraction has 97 states and 105 transitions. [2022-10-16 10:27:46,191 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 2.3333333333333335) internal successors, (42), 19 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:46,194 INFO L276 IsEmpty]: Start isEmpty. Operand 97 states and 105 transitions. [2022-10-16 10:27:46,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-16 10:27:46,195 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:46,196 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:46,238 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:46,396 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:46,397 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:46,397 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:46,397 INFO L85 PathProgramCache]: Analyzing trace with hash -620753493, now seen corresponding path program 1 times [2022-10-16 10:27:46,398 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:46,398 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548070207] [2022-10-16 10:27:46,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:46,398 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:46,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:46,821 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:46,822 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:46,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548070207] [2022-10-16 10:27:46,822 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548070207] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:27:46,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [597719367] [2022-10-16 10:27:46,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:46,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:46,823 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:46,826 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) [2022-10-16 10:27:46,848 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:27:46,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:46,913 INFO L263 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 10:27:46,915 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:46,934 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-10-16 10:27:46,939 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:27:46,941 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 10:27:46,946 INFO L390 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 10 treesize of output 8 [2022-10-16 10:27:47,005 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 57 treesize of output 50 [2022-10-16 10:27:47,017 INFO L356 Elim1Store]: treesize reduction 27, result has 3.6 percent of original size [2022-10-16 10:27:47,023 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 1 case distinctions, treesize of input 49 treesize of output 95 [2022-10-16 10:27:47,059 INFO L356 Elim1Store]: treesize reduction 35, result has 16.7 percent of original size [2022-10-16 10:27:47,059 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 2 case distinctions, treesize of input 87 treesize of output 29 [2022-10-16 10:27:47,192 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:27:47,193 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 28 treesize of output 12 [2022-10-16 10:27:47,207 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:47,208 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:27:47,460 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:47,460 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [597719367] provided 1 perfect and 1 imperfect interpolant sequences [2022-10-16 10:27:47,461 INFO L184 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:27:47,461 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [6, 6] total 14 [2022-10-16 10:27:47,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982160201] [2022-10-16 10:27:47,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:47,461 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 10:27:47,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:47,463 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 10:27:47,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=165, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:27:47,463 INFO L87 Difference]: Start difference. First operand 97 states and 105 transitions. Second operand has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:47,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:47,831 INFO L93 Difference]: Finished difference Result 97 states and 105 transitions. [2022-10-16 10:27:47,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:27:47,832 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 18 [2022-10-16 10:27:47,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:47,833 INFO L225 Difference]: With dead ends: 97 [2022-10-16 10:27:47,833 INFO L226 Difference]: Without dead ends: 96 [2022-10-16 10:27:47,834 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:27:47,835 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 12 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 168 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:47,835 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 168 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:27:47,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2022-10-16 10:27:47,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2022-10-16 10:27:47,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 78 states have (on average 1.3205128205128205) internal successors, (103), 95 states have internal predecessors, (103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:47,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 103 transitions. [2022-10-16 10:27:47,844 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 103 transitions. Word has length 18 [2022-10-16 10:27:47,844 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:47,844 INFO L495 AbstractCegarLoop]: Abstraction has 96 states and 103 transitions. [2022-10-16 10:27:47,844 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 3.6) internal successors, (18), 6 states have internal predecessors, (18), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:47,844 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 103 transitions. [2022-10-16 10:27:47,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2022-10-16 10:27:47,845 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:47,846 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:47,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:48,059 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:48,060 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:48,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:48,061 INFO L85 PathProgramCache]: Analyzing trace with hash 456349357, now seen corresponding path program 1 times [2022-10-16 10:27:48,061 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:48,061 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [77324755] [2022-10-16 10:27:48,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:48,062 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:48,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:48,139 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:48,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:48,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [77324755] [2022-10-16 10:27:48,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [77324755] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:27:48,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708169513] [2022-10-16 10:27:48,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:48,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:48,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:48,142 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) [2022-10-16 10:27:48,154 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:27:48,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:48,213 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:27:48,218 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:48,248 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:48,249 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:27:48,292 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:48,293 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708169513] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:27:48,293 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:27:48,293 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:27:48,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [879335773] [2022-10-16 10:27:48,293 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:27:48,294 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:27:48,294 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:48,295 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:27:48,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:27:48,295 INFO L87 Difference]: Start difference. First operand 96 states and 103 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) 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) [2022-10-16 10:27:48,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:48,536 INFO L93 Difference]: Finished difference Result 131 states and 140 transitions. [2022-10-16 10:27:48,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:27:48,537 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) 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 20 [2022-10-16 10:27:48,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:48,539 INFO L225 Difference]: With dead ends: 131 [2022-10-16 10:27:48,539 INFO L226 Difference]: Without dead ends: 130 [2022-10-16 10:27:48,540 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:27:48,541 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 118 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 250 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 150 SdHoareTripleChecker+Invalid, 282 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 250 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:48,541 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 150 Invalid, 282 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 250 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:27:48,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-10-16 10:27:48,549 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 107. [2022-10-16 10:27:48,550 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 89 states have (on average 1.2921348314606742) internal successors, (115), 106 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:48,551 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 115 transitions. [2022-10-16 10:27:48,551 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 115 transitions. Word has length 20 [2022-10-16 10:27:48,551 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:48,551 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 115 transitions. [2022-10-16 10:27:48,552 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) 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) [2022-10-16 10:27:48,552 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 115 transitions. [2022-10-16 10:27:48,553 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2022-10-16 10:27:48,553 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:48,568 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:48,612 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:48,781 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 10:27:48,781 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:48,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:48,782 INFO L85 PathProgramCache]: Analyzing trace with hash -257699385, now seen corresponding path program 1 times [2022-10-16 10:27:48,782 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:48,782 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1669510104] [2022-10-16 10:27:48,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:48,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:48,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:49,890 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:49,891 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:49,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1669510104] [2022-10-16 10:27:49,891 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1669510104] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:27:49,891 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104162412] [2022-10-16 10:27:49,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:49,892 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:49,892 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:49,895 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) [2022-10-16 10:27:49,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:27:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:49,973 INFO L263 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 26 conjunts are in the unsatisfiable core [2022-10-16 10:27:49,976 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:49,998 INFO L390 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 10 treesize of output 8 [2022-10-16 10:27:50,005 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:27:50,010 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 23 [2022-10-16 10:27:50,016 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 20 treesize of output 20 [2022-10-16 10:27:50,021 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 10:27:50,028 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 10:27:50,184 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:27:50,185 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 2 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 35 [2022-10-16 10:27:50,486 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2022-10-16 10:27:50,509 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:50,509 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:27:51,647 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:51,647 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104162412] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:27:51,647 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:27:51,647 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 7, 7] total 18 [2022-10-16 10:27:51,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [480492646] [2022-10-16 10:27:51,648 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:27:51,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-16 10:27:51,649 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:51,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-16 10:27:51,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=274, Unknown=0, NotChecked=0, Total=342 [2022-10-16 10:27:51,650 INFO L87 Difference]: Start difference. First operand 107 states and 115 transitions. Second operand has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 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) [2022-10-16 10:27:52,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:52,701 INFO L93 Difference]: Finished difference Result 207 states and 217 transitions. [2022-10-16 10:27:52,701 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-16 10:27:52,702 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 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) Word has length 21 [2022-10-16 10:27:52,702 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:52,703 INFO L225 Difference]: With dead ends: 207 [2022-10-16 10:27:52,703 INFO L226 Difference]: Without dead ends: 205 [2022-10-16 10:27:52,704 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 96 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=143, Invalid=457, Unknown=0, NotChecked=0, Total=600 [2022-10-16 10:27:52,705 INFO L413 NwaCegarLoop]: 74 mSDtfsCounter, 150 mSDsluCounter, 445 mSDsCounter, 0 mSdLazyCounter, 468 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 519 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 468 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 311 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:52,705 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 519 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 468 Invalid, 0 Unknown, 311 Unchecked, 0.7s Time] [2022-10-16 10:27:52,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2022-10-16 10:27:52,713 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 115. [2022-10-16 10:27:52,714 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 115 states, 97 states have (on average 1.2783505154639174) internal successors, (124), 114 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:52,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 124 transitions. [2022-10-16 10:27:52,715 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 124 transitions. Word has length 21 [2022-10-16 10:27:52,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:52,715 INFO L495 AbstractCegarLoop]: Abstraction has 115 states and 124 transitions. [2022-10-16 10:27:52,715 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 3.0555555555555554) internal successors, (55), 19 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) [2022-10-16 10:27:52,715 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 124 transitions. [2022-10-16 10:27:52,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:27:52,716 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:52,716 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:52,758 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:52,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:52,931 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr24ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:52,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:52,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1747944265, now seen corresponding path program 1 times [2022-10-16 10:27:52,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:52,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [396985699] [2022-10-16 10:27:52,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:52,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:52,960 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:27:52,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [550958157] [2022-10-16 10:27:52,961 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:52,961 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:52,961 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:52,962 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:27:52,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:27:53,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:53,038 INFO L263 TraceCheckSpWp]: Trace formula consists of 113 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:27:53,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:53,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:53,066 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:27:53,066 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:53,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [396985699] [2022-10-16 10:27:53,067 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:27:53,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [550958157] [2022-10-16 10:27:53,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [550958157] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:53,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:27:53,067 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:27:53,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500832089] [2022-10-16 10:27:53,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:53,068 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:27:53,068 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:53,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:27:53,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:27:53,069 INFO L87 Difference]: Start difference. First operand 115 states and 124 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:53,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:53,146 INFO L93 Difference]: Finished difference Result 123 states and 132 transitions. [2022-10-16 10:27:53,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 10:27:53,146 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 10:27:53,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:53,147 INFO L225 Difference]: With dead ends: 123 [2022-10-16 10:27:53,147 INFO L226 Difference]: Without dead ends: 122 [2022-10-16 10:27:53,148 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:27:53,149 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 5 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:53,150 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 108 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:27:53,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2022-10-16 10:27:53,161 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 120. [2022-10-16 10:27:53,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 102 states have (on average 1.2647058823529411) internal successors, (129), 119 states have internal predecessors, (129), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:53,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 129 transitions. [2022-10-16 10:27:53,163 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 129 transitions. Word has length 24 [2022-10-16 10:27:53,163 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:53,163 INFO L495 AbstractCegarLoop]: Abstraction has 120 states and 129 transitions. [2022-10-16 10:27:53,164 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:53,164 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 129 transitions. [2022-10-16 10:27:53,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:27:53,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:53,169 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:53,207 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:53,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:53,383 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:53,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:53,384 INFO L85 PathProgramCache]: Analyzing trace with hash -2015731147, now seen corresponding path program 1 times [2022-10-16 10:27:53,384 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:53,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1930957010] [2022-10-16 10:27:53,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:53,384 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:53,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:53,454 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:27:53,454 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:53,454 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1930957010] [2022-10-16 10:27:53,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1930957010] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:53,455 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:27:53,455 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:27:53,455 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135391885] [2022-10-16 10:27:53,455 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:53,455 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:27:53,456 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:53,456 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:27:53,456 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:27:53,456 INFO L87 Difference]: Start difference. First operand 120 states and 129 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:53,546 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:53,546 INFO L93 Difference]: Finished difference Result 130 states and 139 transitions. [2022-10-16 10:27:53,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:27:53,546 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 24 [2022-10-16 10:27:53,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:53,549 INFO L225 Difference]: With dead ends: 130 [2022-10-16 10:27:53,549 INFO L226 Difference]: Without dead ends: 128 [2022-10-16 10:27:53,550 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:27:53,551 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 14 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:53,551 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 105 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:27:53,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128 states. [2022-10-16 10:27:53,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128 to 125. [2022-10-16 10:27:53,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 125 states, 107 states have (on average 1.2710280373831775) internal successors, (136), 124 states have internal predecessors, (136), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:53,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 125 states to 125 states and 136 transitions. [2022-10-16 10:27:53,561 INFO L78 Accepts]: Start accepts. Automaton has 125 states and 136 transitions. Word has length 24 [2022-10-16 10:27:53,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:53,561 INFO L495 AbstractCegarLoop]: Abstraction has 125 states and 136 transitions. [2022-10-16 10:27:53,561 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:53,561 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states and 136 transitions. [2022-10-16 10:27:53,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2022-10-16 10:27:53,564 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:53,564 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:53,564 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2022-10-16 10:27:53,564 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr25ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:53,565 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:53,565 INFO L85 PathProgramCache]: Analyzing trace with hash -1648302490, now seen corresponding path program 1 times [2022-10-16 10:27:53,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:53,565 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1277179457] [2022-10-16 10:27:53,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:53,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:53,577 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:27:53,578 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [171113627] [2022-10-16 10:27:53,578 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:53,578 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:53,578 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:53,579 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:27:53,598 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:27:53,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:53,646 INFO L263 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 10:27:53,647 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:53,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:53,671 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:27:53,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:53,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1277179457] [2022-10-16 10:27:53,671 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:27:53,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [171113627] [2022-10-16 10:27:53,672 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [171113627] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:53,672 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:27:53,672 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:27:53,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835620204] [2022-10-16 10:27:53,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:53,674 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:27:53,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:53,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:27:53,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:27:53,675 INFO L87 Difference]: Start difference. First operand 125 states and 136 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:53,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:53,765 INFO L93 Difference]: Finished difference Result 128 states and 137 transitions. [2022-10-16 10:27:53,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:27:53,765 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 25 [2022-10-16 10:27:53,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:53,766 INFO L225 Difference]: With dead ends: 128 [2022-10-16 10:27:53,766 INFO L226 Difference]: Without dead ends: 125 [2022-10-16 10:27:53,770 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:27:53,771 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 29 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 92 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:53,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 60 Invalid, 92 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:27:53,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2022-10-16 10:27:53,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 122. [2022-10-16 10:27:53,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 122 states, 107 states have (on average 1.2429906542056075) internal successors, (133), 121 states have internal predecessors, (133), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:53,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 122 states to 122 states and 133 transitions. [2022-10-16 10:27:53,782 INFO L78 Accepts]: Start accepts. Automaton has 122 states and 133 transitions. Word has length 25 [2022-10-16 10:27:53,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:53,782 INFO L495 AbstractCegarLoop]: Abstraction has 122 states and 133 transitions. [2022-10-16 10:27:53,782 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:53,782 INFO L276 IsEmpty]: Start isEmpty. Operand 122 states and 133 transitions. [2022-10-16 10:27:53,786 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:27:53,786 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:53,786 INFO L195 NwaCegarLoop]: 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] [2022-10-16 10:27:53,825 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:54,002 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 10:27:54,002 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:54,003 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:54,003 INFO L85 PathProgramCache]: Analyzing trace with hash 824242792, now seen corresponding path program 1 times [2022-10-16 10:27:54,003 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:54,003 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [152079808] [2022-10-16 10:27:54,003 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:54,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:54,017 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:27:54,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [333432024] [2022-10-16 10:27:54,017 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:54,018 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:54,018 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:54,019 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:27:54,040 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:27:54,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:54,084 INFO L263 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:27:54,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:54,121 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:54,121 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:27:54,167 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:54,167 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:54,167 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [152079808] [2022-10-16 10:27:54,168 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:27:54,168 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [333432024] [2022-10-16 10:27:54,168 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [333432024] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:27:54,168 INFO L184 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2022-10-16 10:27:54,168 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2022-10-16 10:27:54,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341667730] [2022-10-16 10:27:54,168 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2022-10-16 10:27:54,169 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2022-10-16 10:27:54,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:54,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2022-10-16 10:27:54,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:27:54,170 INFO L87 Difference]: Start difference. First operand 122 states and 133 transitions. Second operand has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 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) [2022-10-16 10:27:54,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:54,331 INFO L93 Difference]: Finished difference Result 145 states and 157 transitions. [2022-10-16 10:27:54,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 10:27:54,332 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 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 27 [2022-10-16 10:27:54,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:54,333 INFO L225 Difference]: With dead ends: 145 [2022-10-16 10:27:54,333 INFO L226 Difference]: Without dead ends: 142 [2022-10-16 10:27:54,334 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:27:54,335 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 147 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 147 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:54,335 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [147 Valid, 70 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:27:54,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 142 states. [2022-10-16 10:27:54,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 142 to 114. [2022-10-16 10:27:54,343 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 102 states have (on average 1.2254901960784315) internal successors, (125), 113 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:54,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 125 transitions. [2022-10-16 10:27:54,344 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 125 transitions. Word has length 27 [2022-10-16 10:27:54,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:54,344 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 125 transitions. [2022-10-16 10:27:54,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 6.571428571428571) internal successors, (46), 8 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) [2022-10-16 10:27:54,345 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 125 transitions. [2022-10-16 10:27:54,345 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 10:27:54,345 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:54,345 INFO L195 NwaCegarLoop]: 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] [2022-10-16 10:27:54,375 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:54,560 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-10-16 10:27:54,560 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:54,561 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:54,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1586227149, now seen corresponding path program 1 times [2022-10-16 10:27:54,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:54,562 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1725911155] [2022-10-16 10:27:54,562 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:54,562 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:54,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:54,650 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:27:54,650 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:54,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1725911155] [2022-10-16 10:27:54,650 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1725911155] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:27:54,650 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1840690365] [2022-10-16 10:27:54,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:54,651 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:54,651 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:54,652 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:27:54,671 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:27:54,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:54,730 INFO L263 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:27:54,732 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:54,755 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:27:54,755 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:27:54,789 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:27:54,790 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1840690365] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:27:54,790 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:27:54,790 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2022-10-16 10:27:54,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682594456] [2022-10-16 10:27:54,790 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:27:54,791 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:27:54,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:54,791 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:27:54,791 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:27:54,792 INFO L87 Difference]: Start difference. First operand 114 states and 125 transitions. Second operand has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:54,991 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:54,991 INFO L93 Difference]: Finished difference Result 138 states and 151 transitions. [2022-10-16 10:27:54,992 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:27:54,992 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 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 [2022-10-16 10:27:54,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:54,993 INFO L225 Difference]: With dead ends: 138 [2022-10-16 10:27:54,993 INFO L226 Difference]: Without dead ends: 137 [2022-10-16 10:27:54,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2022-10-16 10:27:54,994 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 141 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 193 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 141 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 213 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 193 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:54,995 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [141 Valid, 86 Invalid, 213 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 193 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 10:27:54,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2022-10-16 10:27:55,002 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 113. [2022-10-16 10:27:55,003 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 102 states have (on average 1.2156862745098038) internal successors, (124), 112 states have internal predecessors, (124), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:55,003 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 124 transitions. [2022-10-16 10:27:55,004 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 124 transitions. Word has length 27 [2022-10-16 10:27:55,004 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:55,004 INFO L495 AbstractCegarLoop]: Abstraction has 113 states and 124 transitions. [2022-10-16 10:27:55,004 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 5.666666666666667) internal successors, (51), 10 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:55,004 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 124 transitions. [2022-10-16 10:27:55,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2022-10-16 10:27:55,005 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:55,005 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:55,037 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:55,219 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-10-16 10:27:55,219 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:55,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:55,220 INFO L85 PathProgramCache]: Analyzing trace with hash 1928401445, now seen corresponding path program 1 times [2022-10-16 10:27:55,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:55,221 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622183481] [2022-10-16 10:27:55,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:55,221 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:55,294 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:27:55,294 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:55,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622183481] [2022-10-16 10:27:55,294 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622183481] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:27:55,294 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1106438327] [2022-10-16 10:27:55,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:55,295 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:55,295 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:55,296 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:27:55,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 10:27:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:55,358 INFO L263 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:27:55,359 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:55,382 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:27:55,383 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:27:55,383 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1106438327] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:55,383 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:27:55,383 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 6 [2022-10-16 10:27:55,383 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [961447571] [2022-10-16 10:27:55,383 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:55,384 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 10:27:55,384 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:55,384 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 10:27:55,385 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:27:55,385 INFO L87 Difference]: Start difference. First operand 113 states and 124 transitions. Second operand has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:55,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:55,489 INFO L93 Difference]: Finished difference Result 116 states and 125 transitions. [2022-10-16 10:27:55,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 10:27:55,490 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 28 [2022-10-16 10:27:55,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:55,491 INFO L225 Difference]: With dead ends: 116 [2022-10-16 10:27:55,491 INFO L226 Difference]: Without dead ends: 113 [2022-10-16 10:27:55,491 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:27:55,492 INFO L413 NwaCegarLoop]: 38 mSDtfsCounter, 25 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:55,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 98 Invalid, 117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:27:55,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-10-16 10:27:55,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 109. [2022-10-16 10:27:55,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 101 states have (on average 1.188118811881188) internal successors, (120), 108 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:55,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 120 transitions. [2022-10-16 10:27:55,501 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 120 transitions. Word has length 28 [2022-10-16 10:27:55,501 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:55,501 INFO L495 AbstractCegarLoop]: Abstraction has 109 states and 120 transitions. [2022-10-16 10:27:55,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.0) internal successors, (28), 5 states have internal predecessors, (28), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:55,501 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 120 transitions. [2022-10-16 10:27:55,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:27:55,502 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:55,502 INFO L195 NwaCegarLoop]: trace histogram [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, 1] [2022-10-16 10:27:55,541 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:55,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 10:27:55,716 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:55,717 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:55,717 INFO L85 PathProgramCache]: Analyzing trace with hash 1823344234, now seen corresponding path program 1 times [2022-10-16 10:27:55,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:55,717 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1935375729] [2022-10-16 10:27:55,717 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:55,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:55,729 ERROR L245 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2022-10-16 10:27:55,729 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1992783866] [2022-10-16 10:27:55,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:55,729 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:55,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:55,730 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:27:55,749 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 10:27:55,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:55,804 INFO L263 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 10:27:55,810 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:55,894 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:55,894 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:27:55,895 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:55,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1935375729] [2022-10-16 10:27:55,895 WARN L310 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2022-10-16 10:27:55,895 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1992783866] [2022-10-16 10:27:55,895 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1992783866] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:27:55,895 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:27:55,895 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2022-10-16 10:27:55,895 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318758019] [2022-10-16 10:27:55,896 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:27:55,896 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 10:27:55,896 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:27:55,896 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 10:27:55,897 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2022-10-16 10:27:55,897 INFO L87 Difference]: Start difference. First operand 109 states and 120 transitions. Second operand has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 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) [2022-10-16 10:27:56,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:27:56,045 INFO L93 Difference]: Finished difference Result 156 states and 165 transitions. [2022-10-16 10:27:56,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 10:27:56,045 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 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) Word has length 29 [2022-10-16 10:27:56,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:27:56,046 INFO L225 Difference]: With dead ends: 156 [2022-10-16 10:27:56,046 INFO L226 Difference]: Without dead ends: 116 [2022-10-16 10:27:56,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2022-10-16 10:27:56,048 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 72 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 122 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 122 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:27:56,048 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 65 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 122 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:27:56,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-16 10:27:56,055 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 107. [2022-10-16 10:27:56,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 99 states have (on average 1.1616161616161615) internal successors, (115), 106 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:27:56,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 115 transitions. [2022-10-16 10:27:56,056 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 115 transitions. Word has length 29 [2022-10-16 10:27:56,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:27:56,056 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 115 transitions. [2022-10-16 10:27:56,056 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.142857142857143) internal successors, (29), 7 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) [2022-10-16 10:27:56,056 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 115 transitions. [2022-10-16 10:27:56,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2022-10-16 10:27:56,057 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:27:56,057 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:27:56,087 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 10:27:56,271 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:56,272 INFO L420 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:27:56,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:27:56,273 INFO L85 PathProgramCache]: Analyzing trace with hash 336221903, now seen corresponding path program 2 times [2022-10-16 10:27:56,273 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:27:56,273 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1236443424] [2022-10-16 10:27:56,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:27:56,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:27:56,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:27:57,475 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:57,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:27:57,475 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1236443424] [2022-10-16 10:27:57,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1236443424] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:27:57,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8716754] [2022-10-16 10:27:57,476 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:27:57,476 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:27:57,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:27:57,479 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:27:57,480 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-10-16 10:27:57,579 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:27:57,579 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:27:57,581 INFO L263 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:27:57,584 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:27:57,632 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-10-16 10:27:57,633 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-10-16 10:27:57,640 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 31 [2022-10-16 10:27:57,671 INFO L356 Elim1Store]: treesize reduction 34, result has 34.6 percent of original size [2022-10-16 10:27:57,672 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 45 treesize of output 70 [2022-10-16 10:27:57,696 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 10:27:57,713 INFO L390 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 31 treesize of output 25 [2022-10-16 10:27:57,742 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 73 treesize of output 113 [2022-10-16 10:27:57,902 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 23 [2022-10-16 10:27:57,960 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:27:57,962 INFO L390 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 19 treesize of output 17 [2022-10-16 10:27:58,013 INFO L390 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 10 treesize of output 8 [2022-10-16 10:27:59,075 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 75 [2022-10-16 10:27:59,085 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:27:59,086 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:27:59,087 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:27:59,092 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 121 [2022-10-16 10:27:59,400 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:27:59,401 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:27:59,403 INFO L390 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 0 case distinctions, treesize of input 43 treesize of output 44 [2022-10-16 10:27:59,720 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 3 select indices, 3 select index equivalence classes, 2 disjoint index pairs (out of 3 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 42 treesize of output 18 [2022-10-16 10:27:59,745 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:27:59,746 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:28:14,395 WARN L233 SmtUtils]: Spent 10.82s on a formula simplification. DAG size of input: 80 DAG size of output: 79 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 10:28:21,568 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:28:21,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8716754] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:28:21,569 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:28:21,569 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 10] total 26 [2022-10-16 10:28:21,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843841329] [2022-10-16 10:28:21,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:28:21,570 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 10:28:21,570 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:28:21,571 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 10:28:21,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=123, Invalid=578, Unknown=1, NotChecked=0, Total=702 [2022-10-16 10:28:21,572 INFO L87 Difference]: Start difference. First operand 107 states and 115 transitions. Second operand has 27 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 27 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:28:28,401 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:28:28,401 INFO L93 Difference]: Finished difference Result 171 states and 181 transitions. [2022-10-16 10:28:28,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-10-16 10:28:28,402 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 27 states have internal predecessors, (79), 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 29 [2022-10-16 10:28:28,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:28:28,407 INFO L225 Difference]: With dead ends: 171 [2022-10-16 10:28:28,407 INFO L226 Difference]: Without dead ends: 169 [2022-10-16 10:28:28,410 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 280 ImplicationChecksByTransitivity, 27.8s TimeCoverageRelationStatistics Valid=330, Invalid=1229, Unknown=1, NotChecked=0, Total=1560 [2022-10-16 10:28:28,412 INFO L413 NwaCegarLoop]: 33 mSDtfsCounter, 176 mSDsluCounter, 295 mSDsCounter, 0 mSdLazyCounter, 332 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 176 SdHoareTripleChecker+Valid, 328 SdHoareTripleChecker+Invalid, 560 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 332 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 204 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:28:28,413 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [176 Valid, 328 Invalid, 560 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 332 Invalid, 0 Unknown, 204 Unchecked, 0.6s Time] [2022-10-16 10:28:28,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 169 states. [2022-10-16 10:28:28,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 169 to 107. [2022-10-16 10:28:28,436 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 99 states have (on average 1.1616161616161615) internal successors, (115), 106 states have internal predecessors, (115), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:28:28,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 115 transitions. [2022-10-16 10:28:28,441 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 115 transitions. Word has length 29 [2022-10-16 10:28:28,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:28:28,441 INFO L495 AbstractCegarLoop]: Abstraction has 107 states and 115 transitions. [2022-10-16 10:28:28,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 26 states have (on average 3.0384615384615383) internal successors, (79), 27 states have internal predecessors, (79), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:28:28,441 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 115 transitions. [2022-10-16 10:28:28,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 10:28:28,442 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:28:28,442 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-10-16 10:28:28,470 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-10-16 10:28:28,656 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable19 [2022-10-16 10:28:28,656 INFO L420 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:28:28,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:28:28,657 INFO L85 PathProgramCache]: Analyzing trace with hash -475019823, now seen corresponding path program 1 times [2022-10-16 10:28:28,658 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:28:28,658 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1289874800] [2022-10-16 10:28:28,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:28:28,658 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:28:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:28:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 5 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:28:28,813 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:28:28,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1289874800] [2022-10-16 10:28:28,814 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1289874800] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:28:28,814 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [828029728] [2022-10-16 10:28:28,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:28:28,814 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:28:28,814 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:28:28,817 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:28:28,847 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-10-16 10:28:28,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:28:28,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:28:28,905 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:28:29,038 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:28:29,038 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:28:29,126 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 6 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:28:29,126 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [828029728] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:28:29,126 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:28:29,126 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2022-10-16 10:28:29,127 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1323111387] [2022-10-16 10:28:29,127 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:28:29,127 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2022-10-16 10:28:29,127 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:28:29,129 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2022-10-16 10:28:29,129 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=189, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:28:29,129 INFO L87 Difference]: Start difference. First operand 107 states and 115 transitions. Second operand has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:28:29,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:28:29,484 INFO L93 Difference]: Finished difference Result 201 states and 209 transitions. [2022-10-16 10:28:29,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-16 10:28:29,484 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 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 31 [2022-10-16 10:28:29,485 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:28:29,486 INFO L225 Difference]: With dead ends: 201 [2022-10-16 10:28:29,486 INFO L226 Difference]: Without dead ends: 158 [2022-10-16 10:28:29,486 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 50 SyntacticMatches, 5 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 125 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=92, Invalid=328, Unknown=0, NotChecked=0, Total=420 [2022-10-16 10:28:29,487 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 156 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 264 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 156 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 264 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:28:29,488 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [156 Valid, 112 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 264 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:28:29,488 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-10-16 10:28:29,496 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 119. [2022-10-16 10:28:29,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 119 states, 111 states have (on average 1.1441441441441442) internal successors, (127), 118 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:28:29,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 127 transitions. [2022-10-16 10:28:29,498 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 127 transitions. Word has length 31 [2022-10-16 10:28:29,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:28:29,498 INFO L495 AbstractCegarLoop]: Abstraction has 119 states and 127 transitions. [2022-10-16 10:28:29,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 16 states have (on average 3.9375) internal successors, (63), 16 states have internal predecessors, (63), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:28:29,498 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 127 transitions. [2022-10-16 10:28:29,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 10:28:29,499 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:28:29,499 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1] [2022-10-16 10:28:29,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2022-10-16 10:28:29,711 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:28:29,711 INFO L420 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:28:29,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:28:29,712 INFO L85 PathProgramCache]: Analyzing trace with hash 728765121, now seen corresponding path program 2 times [2022-10-16 10:28:29,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:28:29,713 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1036270527] [2022-10-16 10:28:29,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:28:29,714 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:28:29,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:28:31,670 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:28:31,670 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:28:31,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1036270527] [2022-10-16 10:28:31,670 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1036270527] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:28:31,670 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078263894] [2022-10-16 10:28:31,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:28:31,671 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:28:31,671 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:28:31,673 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:28:31,678 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-10-16 10:28:31,876 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:28:31,876 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:28:31,878 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 43 conjunts are in the unsatisfiable core [2022-10-16 10:28:31,883 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:28:31,899 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 14 [2022-10-16 10:28:31,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:31,905 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 14 treesize of output 16 [2022-10-16 10:28:31,914 INFO L390 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 10 treesize of output 8 [2022-10-16 10:28:32,056 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 74 treesize of output 65 [2022-10-16 10:28:32,065 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:28:32,066 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,068 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,069 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 121 [2022-10-16 10:28:32,093 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,100 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 83 treesize of output 25 [2022-10-16 10:28:32,432 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 89 treesize of output 76 [2022-10-16 10:28:32,439 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:28:32,440 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,441 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,443 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,444 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,447 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 3 select indices, 3 select index equivalence classes, 6 disjoint index pairs (out of 3 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 75 treesize of output 136 [2022-10-16 10:28:32,927 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 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 106 treesize of output 89 [2022-10-16 10:28:32,935 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,939 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:28:32,941 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,942 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,943 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:32,947 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 4 select indices, 4 select index equivalence classes, 10 disjoint index pairs (out of 6 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 88 treesize of output 155 [2022-10-16 10:28:33,413 INFO L356 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2022-10-16 10:28:33,414 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 6 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 6 case distinctions, treesize of input 54 treesize of output 22 [2022-10-16 10:28:33,419 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:28:33,419 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:28:35,223 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:28:35,223 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078263894] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:28:35,224 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:28:35,224 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 16] total 43 [2022-10-16 10:28:35,224 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941253026] [2022-10-16 10:28:35,224 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:28:35,224 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-10-16 10:28:35,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:28:35,225 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-10-16 10:28:35,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=270, Invalid=1622, Unknown=0, NotChecked=0, Total=1892 [2022-10-16 10:28:35,227 INFO L87 Difference]: Start difference. First operand 119 states and 127 transitions. Second operand has 44 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 44 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:28:37,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:28:37,773 INFO L93 Difference]: Finished difference Result 149 states and 162 transitions. [2022-10-16 10:28:37,775 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 10:28:37,775 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 44 states have internal predecessors, (90), 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 33 [2022-10-16 10:28:37,776 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:28:37,776 INFO L225 Difference]: With dead ends: 149 [2022-10-16 10:28:37,776 INFO L226 Difference]: Without dead ends: 148 [2022-10-16 10:28:37,779 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 860 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=492, Invalid=2814, Unknown=0, NotChecked=0, Total=3306 [2022-10-16 10:28:37,780 INFO L413 NwaCegarLoop]: 37 mSDtfsCounter, 149 mSDsluCounter, 232 mSDsCounter, 0 mSdLazyCounter, 712 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 770 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 712 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 1 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:28:37,780 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 269 Invalid, 770 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 712 Invalid, 0 Unknown, 1 Unchecked, 1.0s Time] [2022-10-16 10:28:37,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 148 states. [2022-10-16 10:28:37,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 148 to 140. [2022-10-16 10:28:37,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 140 states, 132 states have (on average 1.1515151515151516) internal successors, (152), 139 states have internal predecessors, (152), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:28:37,792 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 152 transitions. [2022-10-16 10:28:37,792 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 152 transitions. Word has length 33 [2022-10-16 10:28:37,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:28:37,792 INFO L495 AbstractCegarLoop]: Abstraction has 140 states and 152 transitions. [2022-10-16 10:28:37,792 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 2.0930232558139537) internal successors, (90), 44 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:28:37,793 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 152 transitions. [2022-10-16 10:28:37,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2022-10-16 10:28:37,793 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:28:37,793 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:28:37,821 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-10-16 10:28:38,005 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:28:38,006 INFO L420 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:28:38,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:28:38,006 INFO L85 PathProgramCache]: Analyzing trace with hash -140926759, now seen corresponding path program 2 times [2022-10-16 10:28:38,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:28:38,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735983733] [2022-10-16 10:28:38,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:28:38,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:28:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:28:42,080 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:28:42,080 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:28:42,080 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735983733] [2022-10-16 10:28:42,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735983733] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:28:42,081 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [727404245] [2022-10-16 10:28:42,081 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:28:42,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:28:42,081 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:28:42,082 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:28:42,083 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-10-16 10:28:42,253 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:28:42,253 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:28:42,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 153 conjuncts, 39 conjunts are in the unsatisfiable core [2022-10-16 10:28:42,259 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:28:42,311 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-10-16 10:28:42,311 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-10-16 10:28:42,349 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-10-16 10:28:42,350 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 71 [2022-10-16 10:28:42,362 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 10:28:42,403 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 16 [2022-10-16 10:28:42,409 INFO L390 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 16 treesize of output 12 [2022-10-16 10:28:42,435 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 10:28:42,444 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 3 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 71 treesize of output 111 [2022-10-16 10:28:42,496 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:28:42,497 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:28:42,498 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 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 31 treesize of output 21 [2022-10-16 10:28:42,586 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:28:42,589 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 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 23 treesize of output 7 [2022-10-16 10:28:42,597 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:28:42,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 52 [2022-10-16 10:28:42,633 WARN L234 Elim1Store]: Array PQE input equivalent to false [2022-10-16 10:28:42,658 INFO L390 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 10 treesize of output 8 [2022-10-16 10:28:42,876 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 75 [2022-10-16 10:28:42,888 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:28:42,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:42,890 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:42,892 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 121 [2022-10-16 10:28:43,271 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:43,272 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:43,274 INFO L390 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 0 case distinctions, treesize of input 43 treesize of output 44 [2022-10-16 10:28:43,918 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 108 treesize of output 96 [2022-10-16 10:28:43,928 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:28:43,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:43,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:43,932 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 76 treesize of output 133 [2022-10-16 10:28:43,974 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:28:43,983 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 118 treesize of output 59 [2022-10-16 10:28:44,600 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 4 select indices, 4 select index equivalence classes, 2 disjoint index pairs (out of 6 index pairs), introduced 4 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 23 [2022-10-16 10:28:44,656 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:28:44,657 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:29:21,156 WARN L233 SmtUtils]: Spent 10.63s on a formula simplification that was a NOOP. DAG size: 107 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 10:30:03,946 WARN L233 SmtUtils]: Spent 17.85s on a formula simplification that was a NOOP. DAG size: 127 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 10:30:05,313 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 14 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:30:05,313 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [727404245] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:30:05,313 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:30:05,313 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 15, 15] total 43 [2022-10-16 10:30:05,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1530803437] [2022-10-16 10:30:05,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:30:05,314 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2022-10-16 10:30:05,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:30:05,315 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2022-10-16 10:30:05,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=237, Invalid=1642, Unknown=13, NotChecked=0, Total=1892 [2022-10-16 10:30:05,317 INFO L87 Difference]: Start difference. First operand 140 states and 152 transitions. Second operand has 44 states, 43 states have (on average 2.5348837209302326) internal successors, (109), 44 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:30:10,642 WARN L855 $PredicateComparison]: unable to prove that (let ((.cse45 (mod |c_ULTIMATE.start_main_~i~0#1| 4294967296)) (.cse46 (mod (+ |c_ULTIMATE.start_main_~i~0#1| 1) 4294967296))) (let ((.cse41 (mod (+ 4294967295 |c_ULTIMATE.start_main_~i~0#1|) 4294967296)) (.cse42 (* .cse46 8)) (.cse1 (<= .cse46 2147483647)) (.cse16 (<= .cse45 2147483647)) (.cse43 (* .cse45 8)) (.cse44 (mod (+ |c_ULTIMATE.start_main_#t~post7#1| 1) 4294967296))) (let ((.cse27 (* .cse44 8)) (.cse23 (<= .cse44 2147483647)) (.cse9 (+ .cse43 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse17 (not .cse16)) (.cse15 (not .cse1)) (.cse14 (+ .cse42 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse6 (+ 8 |c_ULTIMATE.start_main_~b~0#1.offset|)) (.cse7 (+ 8 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse21 (+ .cse43 |c_ULTIMATE.start_main_~a~0#1.offset|)) (.cse10 (+ .cse42 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368))) (.cse22 (* 8 .cse41)) (.cse0 (<= .cse41 2147483647)) (.cse8 (select |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base|))) (and (<= (div |c_ULTIMATE.start_main_~i~0#1| 4294967296) 0) (or .cse0 (let ((.cse4 (+ (select .cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368) .cse22)) 6))) (and (or (and (or .cse1 (forall ((v_ArrVal_576 Int) (v_ArrVal_574 Int) (v_ArrVal_572 Int)) (let ((.cse3 (store (store .cse8 .cse9 v_ArrVal_572) .cse10 v_ArrVal_574))) (let ((.cse5 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse3))) (let ((.cse2 (select .cse5 |c_ULTIMATE.start_main_~b~0#1.base|))) (or (< (+ (select .cse2 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse3 |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_576) (< .cse4 v_ArrVal_572) (< (+ v_ArrVal_576 (select (select (store .cse5 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse2 .cse6 v_ArrVal_576)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)) 9223372036854775808))))))) (or (forall ((v_ArrVal_576 Int) (v_ArrVal_574 Int) (v_ArrVal_572 Int)) (let ((.cse13 (store (store .cse8 .cse9 v_ArrVal_572) .cse14 v_ArrVal_574))) (let ((.cse11 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse13))) (let ((.cse12 (select .cse11 |c_ULTIMATE.start_main_~b~0#1.base|))) (or (< .cse4 v_ArrVal_572) (< (+ v_ArrVal_576 (select (select (store .cse11 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse12 .cse6 v_ArrVal_576)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)) 9223372036854775808) (< (+ (select .cse13 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse12 |c_ULTIMATE.start_main_~b~0#1.offset|)) v_ArrVal_576)))))) .cse15)) .cse16) (or .cse17 (forall ((v_ArrVal_576 Int) (v_ArrVal_574 Int) (v_ArrVal_572 Int)) (let ((.cse20 (store (store .cse8 .cse21 v_ArrVal_572) .cse14 v_ArrVal_574))) (let ((.cse18 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse20))) (let ((.cse19 (select .cse18 |c_ULTIMATE.start_main_~b~0#1.base|))) (or (< (+ v_ArrVal_576 (select (select (store .cse18 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse19 .cse6 v_ArrVal_576)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)) 9223372036854775808) (< .cse4 v_ArrVal_572) (< (+ (select .cse20 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse19 |c_ULTIMATE.start_main_~b~0#1.offset|)) v_ArrVal_576)))))))))) (= 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) (or .cse23 (forall ((v_ArrVal_576 Int) (v_ArrVal_574 Int)) (let ((.cse24 (store .cse8 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset| (- 34359738368)) v_ArrVal_574))) (let ((.cse26 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse24))) (let ((.cse25 (select .cse26 |c_ULTIMATE.start_main_~b~0#1.base|))) (or (< (+ (select .cse24 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse25 |c_ULTIMATE.start_main_~b~0#1.offset|)) v_ArrVal_576) (< (+ v_ArrVal_576 (select (select (store .cse26 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse25 .cse6 v_ArrVal_576)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)) 9223372036854775808))))))) (or (forall ((v_ArrVal_576 Int) (v_ArrVal_574 Int)) (let ((.cse28 (store .cse8 (+ .cse27 |c_ULTIMATE.start_main_~a~0#1.offset|) v_ArrVal_574))) (let ((.cse30 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse28))) (let ((.cse29 (select .cse30 |c_ULTIMATE.start_main_~b~0#1.base|))) (or (< (+ (select .cse28 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse29 |c_ULTIMATE.start_main_~b~0#1.offset|)) v_ArrVal_576) (< (+ v_ArrVal_576 (select (select (store .cse30 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse29 .cse6 v_ArrVal_576)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)) 9223372036854775808)))))) (not .cse23)) (<= (select .cse8 .cse7) 12) (= |c_ULTIMATE.start_main_~a~0#1.offset| 0) (or (let ((.cse33 (+ 6 (select .cse8 (+ |c_ULTIMATE.start_main_~a~0#1.offset| .cse22))))) (and (or (forall ((v_ArrVal_576 Int) (v_ArrVal_574 Int) (v_ArrVal_572 Int)) (let ((.cse32 (store (store .cse8 .cse9 v_ArrVal_572) .cse10 v_ArrVal_574))) (let ((.cse34 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse32))) (let ((.cse31 (select .cse34 |c_ULTIMATE.start_main_~b~0#1.base|))) (or (< (+ (select .cse31 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse32 |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_576) (< .cse33 v_ArrVal_572) (< (+ v_ArrVal_576 (select (select (store .cse34 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse31 .cse6 v_ArrVal_576)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)) 9223372036854775808)))))) .cse16) (or .cse17 (and (or .cse15 (forall ((v_ArrVal_576 Int) (v_ArrVal_574 Int) (v_ArrVal_572 Int)) (let ((.cse37 (store (store .cse8 .cse21 v_ArrVal_572) .cse14 v_ArrVal_574))) (let ((.cse35 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse37))) (let ((.cse36 (select .cse35 |c_ULTIMATE.start_main_~b~0#1.base|))) (or (< (+ v_ArrVal_576 (select (select (store .cse35 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse36 .cse6 v_ArrVal_576)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)) 9223372036854775808) (< .cse33 v_ArrVal_572) (< (+ (select .cse37 |c_ULTIMATE.start_main_~a~0#1.offset|) (select .cse36 |c_ULTIMATE.start_main_~b~0#1.offset|)) v_ArrVal_576))))))) (or .cse1 (forall ((v_ArrVal_576 Int) (v_ArrVal_574 Int) (v_ArrVal_572 Int)) (let ((.cse39 (store (store .cse8 .cse21 v_ArrVal_572) .cse10 v_ArrVal_574))) (let ((.cse40 (store |c_#memory_int| |c_ULTIMATE.start_main_~a~0#1.base| .cse39))) (let ((.cse38 (select .cse40 |c_ULTIMATE.start_main_~b~0#1.base|))) (or (< (+ (select .cse38 |c_ULTIMATE.start_main_~b~0#1.offset|) (select .cse39 |c_ULTIMATE.start_main_~a~0#1.offset|)) v_ArrVal_576) (< .cse33 v_ArrVal_572) (< (+ v_ArrVal_576 (select (select (store .cse40 |c_ULTIMATE.start_main_~b~0#1.base| (store .cse38 .cse6 v_ArrVal_576)) |c_ULTIMATE.start_main_~a~0#1.base|) .cse7)) 9223372036854775808))))))))))) (not .cse0)) (= (select .cse8 0) 6))))) is different from true [2022-10-16 10:30:20,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:30:20,291 INFO L93 Difference]: Finished difference Result 190 states and 205 transitions. [2022-10-16 10:30:20,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-16 10:30:20,293 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 2.5348837209302326) internal successors, (109), 44 states have internal predecessors, (109), 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 39 [2022-10-16 10:30:20,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:30:20,294 INFO L225 Difference]: With dead ends: 190 [2022-10-16 10:30:20,294 INFO L226 Difference]: Without dead ends: 189 [2022-10-16 10:30:20,296 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 50 SyntacticMatches, 1 SemanticMatches, 61 ConstructedPredicates, 1 IntricatePredicates, 1 DeprecatedPredicates, 1076 ImplicationChecksByTransitivity, 92.4s TimeCoverageRelationStatistics Valid=483, Invalid=3289, Unknown=14, NotChecked=120, Total=3906 [2022-10-16 10:30:20,296 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 170 mSDsluCounter, 273 mSDsCounter, 0 mSdLazyCounter, 552 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 170 SdHoareTripleChecker+Valid, 292 SdHoareTripleChecker+Invalid, 1288 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 552 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 717 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:30:20,297 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [170 Valid, 292 Invalid, 1288 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 552 Invalid, 0 Unknown, 717 Unchecked, 1.0s Time] [2022-10-16 10:30:20,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-16 10:30:20,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 149. [2022-10-16 10:30:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 149 states, 141 states have (on average 1.148936170212766) internal successors, (162), 148 states have internal predecessors, (162), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:30:20,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 149 states to 149 states and 162 transitions. [2022-10-16 10:30:20,311 INFO L78 Accepts]: Start accepts. Automaton has 149 states and 162 transitions. Word has length 39 [2022-10-16 10:30:20,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:30:20,311 INFO L495 AbstractCegarLoop]: Abstraction has 149 states and 162 transitions. [2022-10-16 10:30:20,311 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 2.5348837209302326) internal successors, (109), 44 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:30:20,312 INFO L276 IsEmpty]: Start isEmpty. Operand 149 states and 162 transitions. [2022-10-16 10:30:20,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 10:30:20,312 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:30:20,312 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:30:20,342 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-10-16 10:30:20,525 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable22 [2022-10-16 10:30:20,526 INFO L420 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:30:20,526 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:30:20,526 INFO L85 PathProgramCache]: Analyzing trace with hash -73762143, now seen corresponding path program 1 times [2022-10-16 10:30:20,527 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:30:20,527 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1980572699] [2022-10-16 10:30:20,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:30:20,528 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:30:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:30:22,915 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:30:22,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:30:22,915 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1980572699] [2022-10-16 10:30:22,916 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1980572699] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:30:22,916 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2049072359] [2022-10-16 10:30:22,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:30:22,916 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:30:22,916 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:30:22,917 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:30:22,919 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-10-16 10:30:23,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:30:23,095 INFO L263 TraceCheckSpWp]: Trace formula consists of 154 conjuncts, 46 conjunts are in the unsatisfiable core [2022-10-16 10:30:23,100 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:30:23,148 INFO L356 Elim1Store]: treesize reduction 13, result has 58.1 percent of original size [2022-10-16 10:30:23,148 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 2 case distinctions, treesize of input 46 treesize of output 54 [2022-10-16 10:30:23,184 INFO L356 Elim1Store]: treesize reduction 35, result has 34.0 percent of original size [2022-10-16 10:30:23,184 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 4 new quantified variables, introduced 3 case distinctions, treesize of input 46 treesize of output 71 [2022-10-16 10:30:23,197 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 10:30:23,220 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 12 treesize of output 11 [2022-10-16 10:30:23,257 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 8 treesize of output 7 [2022-10-16 10:30:23,276 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 34 treesize of output 25 [2022-10-16 10:30:23,283 INFO L390 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 15 treesize of output 11 [2022-10-16 10:30:23,296 INFO L390 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 10 treesize of output 8 [2022-10-16 10:30:23,514 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 81 treesize of output 75 [2022-10-16 10:30:23,521 INFO L173 IndexEqualityManager]: detected equality via solver [2022-10-16 10:30:23,522 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:30:23,523 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:30:23,526 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 121 [2022-10-16 10:30:23,582 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:30:23,584 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 106 treesize of output 47 [2022-10-16 10:30:24,046 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:30:24,047 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:30:24,049 INFO L390 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 0 case distinctions, treesize of input 54 treesize of output 49 [2022-10-16 10:30:24,543 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 96 treesize of output 84 [2022-10-16 10:30:24,551 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:30:24,552 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:30:24,553 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 3 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 49 treesize of output 100 [2022-10-16 10:30:24,585 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:30:24,586 INFO L190 IndexEqualityManager]: detected not equals via solver [2022-10-16 10:30:24,587 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 2 select indices, 2 select index equivalence classes, 3 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 0 case distinctions, treesize of input 87 treesize of output 29 [2022-10-16 10:30:25,217 INFO L390 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 5 select indices, 5 select index equivalence classes, 4 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 0 case distinctions, treesize of input 64 treesize of output 28 [2022-10-16 10:30:25,279 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:30:25,279 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:30:45,435 WARN L233 SmtUtils]: Spent 12.54s on a formula simplification. DAG size of input: 71 DAG size of output: 69 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 10:31:01,462 WARN L233 SmtUtils]: Spent 14.34s on a formula simplification that was a NOOP. DAG size: 88 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-10-16 10:31:02,675 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:31:02,676 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2049072359] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:31:02,676 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:31:02,676 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 14, 14] total 38 [2022-10-16 10:31:02,676 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1061935714] [2022-10-16 10:31:02,676 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:31:02,677 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2022-10-16 10:31:02,677 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:31:02,677 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2022-10-16 10:31:02,678 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1272, Unknown=2, NotChecked=0, Total=1482 [2022-10-16 10:31:02,678 INFO L87 Difference]: Start difference. First operand 149 states and 162 transitions. Second operand has 39 states, 38 states have (on average 2.9473684210526314) internal successors, (112), 39 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:31:11,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:31:11,889 INFO L93 Difference]: Finished difference Result 253 states and 269 transitions. [2022-10-16 10:31:11,890 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2022-10-16 10:31:11,890 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 38 states have (on average 2.9473684210526314) internal successors, (112), 39 states have internal predecessors, (112), 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 [2022-10-16 10:31:11,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:31:11,892 INFO L225 Difference]: With dead ends: 253 [2022-10-16 10:31:11,892 INFO L226 Difference]: Without dead ends: 252 [2022-10-16 10:31:11,893 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 121 GetRequests, 58 SyntacticMatches, 2 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 954 ImplicationChecksByTransitivity, 42.1s TimeCoverageRelationStatistics Valid=549, Invalid=3355, Unknown=2, NotChecked=0, Total=3906 [2022-10-16 10:31:11,894 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 301 mSDsluCounter, 472 mSDsCounter, 0 mSdLazyCounter, 1202 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 504 SdHoareTripleChecker+Invalid, 1932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 1202 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 708 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:31:11,894 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 504 Invalid, 1932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 1202 Invalid, 0 Unknown, 708 Unchecked, 2.3s Time] [2022-10-16 10:31:11,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 252 states. [2022-10-16 10:31:11,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 252 to 177. [2022-10-16 10:31:11,918 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 169 states have (on average 1.1479289940828403) internal successors, (194), 176 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:31:11,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 194 transitions. [2022-10-16 10:31:11,919 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 194 transitions. Word has length 40 [2022-10-16 10:31:11,919 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:31:11,919 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 194 transitions. [2022-10-16 10:31:11,920 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 38 states have (on average 2.9473684210526314) internal successors, (112), 39 states have internal predecessors, (112), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:31:11,920 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 194 transitions. [2022-10-16 10:31:11,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-16 10:31:11,920 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:31:11,920 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:31:11,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-10-16 10:31:12,121 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:31:12,122 INFO L420 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:31:12,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:31:12,123 INFO L85 PathProgramCache]: Analyzing trace with hash 2129027555, now seen corresponding path program 1 times [2022-10-16 10:31:12,123 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:31:12,124 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1352971181] [2022-10-16 10:31:12,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:31:12,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:31:12,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:31:12,231 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:31:12,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:31:12,231 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1352971181] [2022-10-16 10:31:12,232 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1352971181] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:31:12,232 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [273950981] [2022-10-16 10:31:12,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:31:12,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:31:12,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:31:12,233 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:31:12,248 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-10-16 10:31:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:31:12,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 161 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 10:31:12,323 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:31:12,378 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:31:12,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:31:12,456 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:31:12,456 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [273950981] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:31:12,456 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:31:12,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-10-16 10:31:12,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2113824506] [2022-10-16 10:31:12,457 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:31:12,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-10-16 10:31:12,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:31:12,457 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-10-16 10:31:12,457 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:31:12,458 INFO L87 Difference]: Start difference. First operand 177 states and 194 transitions. Second operand has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:31:12,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:31:12,793 INFO L93 Difference]: Finished difference Result 227 states and 247 transitions. [2022-10-16 10:31:12,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 10:31:12,793 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 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 42 [2022-10-16 10:31:12,793 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:31:12,795 INFO L225 Difference]: With dead ends: 227 [2022-10-16 10:31:12,795 INFO L226 Difference]: Without dead ends: 226 [2022-10-16 10:31:12,795 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=77, Invalid=163, Unknown=0, NotChecked=0, Total=240 [2022-10-16 10:31:12,796 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 130 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 215 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 113 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 215 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:31:12,796 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 113 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 215 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:31:12,797 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 226 states. [2022-10-16 10:31:12,816 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 226 to 208. [2022-10-16 10:31:12,818 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 208 states, 200 states have (on average 1.165) internal successors, (233), 207 states have internal predecessors, (233), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:31:12,819 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 208 states to 208 states and 233 transitions. [2022-10-16 10:31:12,819 INFO L78 Accepts]: Start accepts. Automaton has 208 states and 233 transitions. Word has length 42 [2022-10-16 10:31:12,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:31:12,820 INFO L495 AbstractCegarLoop]: Abstraction has 208 states and 233 transitions. [2022-10-16 10:31:12,820 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 5.909090909090909) internal successors, (65), 12 states have internal predecessors, (65), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:31:12,820 INFO L276 IsEmpty]: Start isEmpty. Operand 208 states and 233 transitions. [2022-10-16 10:31:12,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 10:31:12,821 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:31:12,821 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1] [2022-10-16 10:31:12,859 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-10-16 10:31:13,035 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:31:13,035 INFO L420 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:31:13,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:31:13,036 INFO L85 PathProgramCache]: Analyzing trace with hash -1614472043, now seen corresponding path program 2 times [2022-10-16 10:31:13,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:31:13,036 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555543506] [2022-10-16 10:31:13,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:31:13,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:31:13,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:31:13,250 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:31:13,250 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:31:13,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555543506] [2022-10-16 10:31:13,250 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555543506] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:31:13,250 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1790185866] [2022-10-16 10:31:13,250 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:31:13,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:31:13,251 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:31:13,251 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:31:13,252 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2022-10-16 10:31:13,316 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-16 10:31:13,317 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:31:13,317 INFO L263 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:31:13,319 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:31:13,437 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 10:31:13,438 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:31:13,577 INFO L134 CoverageAnalysis]: Checked inductivity of 76 backedges. 0 proven. 24 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2022-10-16 10:31:13,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1790185866] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:31:13,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:31:13,578 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 4, 4] total 17 [2022-10-16 10:31:13,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1735993122] [2022-10-16 10:31:13,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:31:13,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:31:13,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:31:13,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:31:13,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=76, Invalid=230, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:31:13,580 INFO L87 Difference]: Start difference. First operand 208 states and 233 transitions. Second operand has 18 states, 17 states have (on average 4.823529411764706) internal successors, (82), 18 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:31:14,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:31:14,090 INFO L93 Difference]: Finished difference Result 218 states and 241 transitions. [2022-10-16 10:31:14,091 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-16 10:31:14,091 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 17 states have (on average 4.823529411764706) internal successors, (82), 18 states have internal predecessors, (82), 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 44 [2022-10-16 10:31:14,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:31:14,092 INFO L225 Difference]: With dead ends: 218 [2022-10-16 10:31:14,092 INFO L226 Difference]: Without dead ends: 217 [2022-10-16 10:31:14,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 146 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=273, Invalid=657, Unknown=0, NotChecked=0, Total=930 [2022-10-16 10:31:14,093 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 294 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 216 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 79 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 216 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 10:31:14,094 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 79 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 216 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 10:31:14,094 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2022-10-16 10:31:14,110 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 207. [2022-10-16 10:31:14,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207 states, 200 states have (on average 1.15) internal successors, (230), 206 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:31:14,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207 states to 207 states and 230 transitions. [2022-10-16 10:31:14,111 INFO L78 Accepts]: Start accepts. Automaton has 207 states and 230 transitions. Word has length 44 [2022-10-16 10:31:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:31:14,111 INFO L495 AbstractCegarLoop]: Abstraction has 207 states and 230 transitions. [2022-10-16 10:31:14,112 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 17 states have (on average 4.823529411764706) internal successors, (82), 18 states have internal predecessors, (82), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:31:14,112 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states and 230 transitions. [2022-10-16 10:31:14,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-16 10:31:14,112 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:31:14,112 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:31:14,155 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2022-10-16 10:31:14,328 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:31:14,328 INFO L420 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 23 more)] === [2022-10-16 10:31:14,329 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:31:14,329 INFO L85 PathProgramCache]: Analyzing trace with hash -28653345, now seen corresponding path program 3 times [2022-10-16 10:31:14,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:31:14,330 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1536516240] [2022-10-16 10:31:14,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:31:14,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:31:14,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat