/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/loop-lit/gsv2008.c.i.p+cfa-reducer.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 21:42:22,815 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 21:42:22,818 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 21:42:22,867 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 21:42:22,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 21:42:22,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 21:42:22,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 21:42:22,967 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 [2022-10-15 21:42:22,998 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 21:42:22,998 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 21:42:22,999 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 21:42:22,999 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 21:42:23,000 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 21:42:23,000 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 21:42:23,002 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 21:42:23,002 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 21:42:23,002 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 21:42:23,002 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 21:42:23,003 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 21:42:23,003 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 21:42:23,003 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 21:42:23,003 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 21:42:23,003 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 21:42:23,004 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 21:42:23,004 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 21:42:23,004 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 21:42:23,004 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 21:42:23,005 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 21:42:23,005 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 21:42:23,005 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 21:42:23,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 21:42:23,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 21:42:23,006 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 21:42:23,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 21:42:23,006 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:42:23,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 21:42:23,007 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 21:42:23,007 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 21:42:23,007 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 21:42:23,008 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 21:42:23,008 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 21:42:23,008 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 21:42:23,436 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 21:42:23,463 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 21:42:23,467 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 21:42:23,468 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 21:42:23,469 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 21:42:23,471 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2022-10-15 21:42:23,554 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a661983/65bf6566599746fcafe5780e19aa965a/FLAGc7a048bff [2022-10-15 21:42:24,180 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 21:42:24,181 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loop-lit/gsv2008.c.i.p+cfa-reducer.c [2022-10-15 21:42:24,190 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a661983/65bf6566599746fcafe5780e19aa965a/FLAGc7a048bff [2022-10-15 21:42:24,529 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/07a661983/65bf6566599746fcafe5780e19aa965a [2022-10-15 21:42:24,532 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 21:42:24,538 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 21:42:24,540 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 21:42:24,540 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 21:42:24,544 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 21:42:24,546 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,547 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5141447b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24, skipping insertion in model container [2022-10-15 21:42:24,547 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,558 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 21:42:24,579 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 21:42:24,768 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/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2022-10-15 21:42:24,769 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:42:24,781 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 21:42:24,801 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/loop-lit/gsv2008.c.i.p+cfa-reducer.c[989,1002] [2022-10-15 21:42:24,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 21:42:24,821 INFO L208 MainTranslator]: Completed translation [2022-10-15 21:42:24,822 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24 WrapperNode [2022-10-15 21:42:24,822 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 21:42:24,823 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 21:42:24,824 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 21:42:24,824 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 21:42:24,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,844 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,869 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 45 [2022-10-15 21:42:24,869 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 21:42:24,870 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 21:42:24,870 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 21:42:24,870 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 21:42:24,881 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,882 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,883 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,884 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,887 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,890 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,891 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,892 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,893 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 21:42:24,894 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 21:42:24,895 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 21:42:24,895 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 21:42:24,896 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (1/1) ... [2022-10-15 21:42:24,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 21:42:24,917 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:24,936 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) [2022-10-15 21:42:24,949 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 [2022-10-15 21:42:25,014 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 21:42:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 21:42:25,015 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 21:42:25,016 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 21:42:25,126 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 21:42:25,129 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 21:42:25,359 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 21:42:25,368 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 21:42:25,368 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-15 21:42:25,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:42:25 BoogieIcfgContainer [2022-10-15 21:42:25,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 21:42:25,376 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 21:42:25,377 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 21:42:25,381 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 21:42:25,382 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 09:42:24" (1/3) ... [2022-10-15 21:42:25,382 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e080a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:42:25, skipping insertion in model container [2022-10-15 21:42:25,383 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 09:42:24" (2/3) ... [2022-10-15 21:42:25,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67e080a2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 09:42:25, skipping insertion in model container [2022-10-15 21:42:25,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 09:42:25" (3/3) ... [2022-10-15 21:42:25,386 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.p+cfa-reducer.c [2022-10-15 21:42:25,414 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 21:42:25,414 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-15 21:42:25,569 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 21:42:25,580 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;@519a574a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 21:42:25,581 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-15 21:42:25,588 INFO L276 IsEmpty]: Start isEmpty. Operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 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) [2022-10-15 21:42:25,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-15 21:42:25,596 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:25,597 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-15 21:42:25,598 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:25,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:25,604 INFO L85 PathProgramCache]: Analyzing trace with hash 889571305, now seen corresponding path program 1 times [2022-10-15 21:42:25,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:25,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566843520] [2022-10-15 21:42:25,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:25,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:25,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:25,853 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:25,854 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:25,855 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566843520] [2022-10-15 21:42:25,856 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1566843520] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:42:25,856 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:42:25,857 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:42:25,859 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1368802455] [2022-10-15 21:42:25,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:42:25,865 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:42:25,866 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:25,902 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:42:25,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:42:25,907 INFO L87 Difference]: Start difference. First operand has 17 states, 12 states have (on average 1.6666666666666667) internal successors, (20), 16 states have internal predecessors, (20), 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 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-10-15 21:42:25,968 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:25,969 INFO L93 Difference]: Finished difference Result 28 states and 32 transitions. [2022-10-15 21:42:25,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:42:25,972 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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 6 [2022-10-15 21:42:25,973 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:25,983 INFO L225 Difference]: With dead ends: 28 [2022-10-15 21:42:25,983 INFO L226 Difference]: Without dead ends: 16 [2022-10-15 21:42:25,988 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 [2022-10-15 21:42:25,993 INFO L413 NwaCegarLoop]: 10 mSDtfsCounter, 8 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 14 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:25,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 14 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:42:26,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-15 21:42:26,038 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 15. [2022-10-15 21:42:26,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15 states, 11 states have (on average 1.3636363636363635) internal successors, (15), 14 states have internal predecessors, (15), 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) [2022-10-15 21:42:26,041 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 15 transitions. [2022-10-15 21:42:26,043 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 15 transitions. Word has length 6 [2022-10-15 21:42:26,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:26,044 INFO L495 AbstractCegarLoop]: Abstraction has 15 states and 15 transitions. [2022-10-15 21:42:26,045 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.0) internal successors, (6), 3 states have internal predecessors, (6), 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) [2022-10-15 21:42:26,045 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 15 transitions. [2022-10-15 21:42:26,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 21:42:26,046 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:26,046 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:42:26,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 21:42:26,047 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:26,048 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:26,048 INFO L85 PathProgramCache]: Analyzing trace with hash 1806906729, now seen corresponding path program 1 times [2022-10-15 21:42:26,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:26,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1994314569] [2022-10-15 21:42:26,049 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:26,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:26,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:26,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:26,128 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:26,129 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1994314569] [2022-10-15 21:42:26,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1994314569] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:42:26,129 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:42:26,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 21:42:26,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1215671550] [2022-10-15 21:42:26,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:42:26,132 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 21:42:26,132 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:26,133 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 21:42:26,133 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 21:42:26,133 INFO L87 Difference]: Start difference. First operand 15 states and 15 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-10-15 21:42:26,210 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:26,210 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-10-15 21:42:26,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 21:42:26,211 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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 [2022-10-15 21:42:26,212 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:26,212 INFO L225 Difference]: With dead ends: 17 [2022-10-15 21:42:26,213 INFO L226 Difference]: Without dead ends: 16 [2022-10-15 21:42:26,213 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 [2022-10-15 21:42:26,215 INFO L413 NwaCegarLoop]: 9 mSDtfsCounter, 4 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 15 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:26,216 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 15 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:42:26,218 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-15 21:42:26,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-15 21:42:26,225 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 15 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) [2022-10-15 21:42:26,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-10-15 21:42:26,226 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 7 [2022-10-15 21:42:26,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:26,227 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-10-15 21:42:26,227 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 4 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) [2022-10-15 21:42:26,227 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-10-15 21:42:26,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 21:42:26,228 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:26,228 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:42:26,229 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 21:42:26,229 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:26,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:26,230 INFO L85 PathProgramCache]: Analyzing trace with hash 179533803, now seen corresponding path program 1 times [2022-10-15 21:42:26,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:26,231 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [226536783] [2022-10-15 21:42:26,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:26,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:26,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:26,287 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:26,287 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:26,288 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [226536783] [2022-10-15 21:42:26,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [226536783] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:42:26,288 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:42:26,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:42:26,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [268814324] [2022-10-15 21:42:26,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:42:26,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:42:26,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:26,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:42:26,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:42:26,292 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-10-15 21:42:26,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:26,322 INFO L93 Difference]: Finished difference Result 19 states and 20 transitions. [2022-10-15 21:42:26,323 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:42:26,323 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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 8 [2022-10-15 21:42:26,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:26,324 INFO L225 Difference]: With dead ends: 19 [2022-10-15 21:42:26,324 INFO L226 Difference]: Without dead ends: 18 [2022-10-15 21:42:26,325 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 [2022-10-15 21:42:26,327 INFO L413 NwaCegarLoop]: 8 mSDtfsCounter, 2 mSDsluCounter, 2 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:26,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 10 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:42:26,330 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2022-10-15 21:42:26,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 17. [2022-10-15 21:42:26,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 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) [2022-10-15 21:42:26,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2022-10-15 21:42:26,342 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 8 [2022-10-15 21:42:26,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:26,342 INFO L495 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2022-10-15 21:42:26,343 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.0) internal successors, (8), 3 states have internal predecessors, (8), 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) [2022-10-15 21:42:26,343 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2022-10-15 21:42:26,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 21:42:26,345 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:26,345 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:42:26,346 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 21:42:26,346 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:26,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:26,347 INFO L85 PathProgramCache]: Analyzing trace with hash 1270580651, now seen corresponding path program 1 times [2022-10-15 21:42:26,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:26,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [80071674] [2022-10-15 21:42:26,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:26,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:26,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:26,454 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:26,455 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:26,455 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [80071674] [2022-10-15 21:42:26,455 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [80071674] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:42:26,456 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 21:42:26,456 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 21:42:26,456 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615632922] [2022-10-15 21:42:26,457 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:42:26,457 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 21:42:26,457 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:26,458 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 21:42:26,459 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 21:42:26,459 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2022-10-15 21:42:26,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:26,477 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2022-10-15 21:42:26,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 21:42:26,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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 [2022-10-15 21:42:26,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:26,479 INFO L225 Difference]: With dead ends: 17 [2022-10-15 21:42:26,479 INFO L226 Difference]: Without dead ends: 16 [2022-10-15 21:42:26,480 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 [2022-10-15 21:42:26,482 INFO L413 NwaCegarLoop]: 3 mSDtfsCounter, 3 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 4 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:26,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 4 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:42:26,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2022-10-15 21:42:26,492 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2022-10-15 21:42:26,496 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 16 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 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) [2022-10-15 21:42:26,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2022-10-15 21:42:26,497 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 9 [2022-10-15 21:42:26,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:26,498 INFO L495 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2022-10-15 21:42:26,498 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 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) [2022-10-15 21:42:26,499 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2022-10-15 21:42:26,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-15 21:42:26,499 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:26,500 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:42:26,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 21:42:26,500 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:26,506 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:26,506 INFO L85 PathProgramCache]: Analyzing trace with hash 1257295021, now seen corresponding path program 1 times [2022-10-15 21:42:26,507 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:26,507 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337147804] [2022-10-15 21:42:26,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:26,508 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:26,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:26,664 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:26,664 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:26,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337147804] [2022-10-15 21:42:26,665 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337147804] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:26,665 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [22252648] [2022-10-15 21:42:26,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:26,666 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:26,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:26,668 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) [2022-10-15 21:42:26,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 21:42:26,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:26,724 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:42:26,735 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:26,902 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:26,902 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:27,011 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:27,012 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [22252648] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:27,012 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:27,012 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-15 21:42:27,013 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [503056380] [2022-10-15 21:42:27,013 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:27,014 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 21:42:27,014 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:27,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 21:42:27,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=137, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:42:27,016 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:27,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:27,353 INFO L93 Difference]: Finished difference Result 34 states and 36 transitions. [2022-10-15 21:42:27,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2022-10-15 21:42:27,355 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-15 21:42:27,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:27,358 INFO L225 Difference]: With dead ends: 34 [2022-10-15 21:42:27,358 INFO L226 Difference]: Without dead ends: 32 [2022-10-15 21:42:27,361 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=154, Invalid=398, Unknown=0, NotChecked=0, Total=552 [2022-10-15 21:42:27,367 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 37 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 97 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 118 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 97 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:27,369 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [37 Valid, 10 Invalid, 118 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 97 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:42:27,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2022-10-15 21:42:27,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 29. [2022-10-15 21:42:27,391 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 26 states have (on average 1.2307692307692308) internal successors, (32), 28 states have internal predecessors, (32), 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) [2022-10-15 21:42:27,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2022-10-15 21:42:27,392 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 11 [2022-10-15 21:42:27,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:27,393 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2022-10-15 21:42:27,395 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 2.3846153846153846) internal successors, (31), 14 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:27,396 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2022-10-15 21:42:27,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 21:42:27,396 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:27,396 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 21:42:27,427 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:27,613 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:27,614 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:27,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:27,616 INFO L85 PathProgramCache]: Analyzing trace with hash 321440037, now seen corresponding path program 1 times [2022-10-15 21:42:27,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:27,617 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524356959] [2022-10-15 21:42:27,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:27,617 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:27,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:27,713 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:27,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:27,713 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524356959] [2022-10-15 21:42:27,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524356959] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:27,714 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485224343] [2022-10-15 21:42:27,714 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:27,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:27,716 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:27,719 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) [2022-10-15 21:42:27,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 21:42:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:27,778 INFO L263 TraceCheckSpWp]: Trace formula consists of 49 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 21:42:27,780 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:27,955 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:27,955 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:28,025 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:28,026 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485224343] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:28,026 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:28,026 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 12 [2022-10-15 21:42:28,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1611986228] [2022-10-15 21:42:28,027 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:28,027 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-15 21:42:28,027 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:28,028 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-15 21:42:28,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2022-10-15 21:42:28,029 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:28,150 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:28,150 INFO L93 Difference]: Finished difference Result 32 states and 34 transitions. [2022-10-15 21:42:28,151 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2022-10-15 21:42:28,151 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 21:42:28,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:28,154 INFO L225 Difference]: With dead ends: 32 [2022-10-15 21:42:28,154 INFO L226 Difference]: Without dead ends: 31 [2022-10-15 21:42:28,155 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=145, Unknown=0, NotChecked=0, Total=210 [2022-10-15 21:42:28,163 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 25 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:28,166 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 12 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:42:28,167 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2022-10-15 21:42:28,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 30. [2022-10-15 21:42:28,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 27 states have (on average 1.1481481481481481) internal successors, (31), 29 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:28,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 31 transitions. [2022-10-15 21:42:28,181 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 31 transitions. Word has length 12 [2022-10-15 21:42:28,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:28,182 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 31 transitions. [2022-10-15 21:42:28,183 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 2.75) internal successors, (33), 13 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 21:42:28,183 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 31 transitions. [2022-10-15 21:42:28,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2022-10-15 21:42:28,184 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:28,185 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-15 21:42:28,223 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:28,400 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,SelfDestructingSolverStorable5 [2022-10-15 21:42:28,402 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:28,403 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:28,403 INFO L85 PathProgramCache]: Analyzing trace with hash -625003925, now seen corresponding path program 1 times [2022-10-15 21:42:28,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:28,404 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1027074926] [2022-10-15 21:42:28,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:28,405 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:28,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:28,564 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:28,564 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:28,565 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1027074926] [2022-10-15 21:42:28,569 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1027074926] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:28,570 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [579688435] [2022-10-15 21:42:28,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:28,571 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:28,571 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:28,575 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) [2022-10-15 21:42:28,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 21:42:28,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:28,627 INFO L263 TraceCheckSpWp]: Trace formula consists of 65 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:42:28,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:28,695 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:28,696 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:28,765 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:28,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [579688435] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:28,766 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:28,767 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 4, 4] total 13 [2022-10-15 21:42:28,767 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [238690999] [2022-10-15 21:42:28,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:28,769 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 21:42:28,770 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:28,770 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 21:42:28,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=48, Invalid=134, Unknown=0, NotChecked=0, Total=182 [2022-10-15 21:42:28,772 INFO L87 Difference]: Start difference. First operand 30 states and 31 transitions. Second operand has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) [2022-10-15 21:42:29,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:29,047 INFO L93 Difference]: Finished difference Result 67 states and 73 transitions. [2022-10-15 21:42:29,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-15 21:42:29,048 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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 [2022-10-15 21:42:29,048 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:29,050 INFO L225 Difference]: With dead ends: 67 [2022-10-15 21:42:29,050 INFO L226 Difference]: Without dead ends: 66 [2022-10-15 21:42:29,051 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=170, Invalid=480, Unknown=0, NotChecked=0, Total=650 [2022-10-15 21:42:29,053 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 46 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 140 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 140 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:29,053 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 17 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 140 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 21:42:29,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-15 21:42:29,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 56. [2022-10-15 21:42:29,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 53 states have (on average 1.2452830188679245) internal successors, (66), 55 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) [2022-10-15 21:42:29,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 66 transitions. [2022-10-15 21:42:29,077 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 66 transitions. Word has length 18 [2022-10-15 21:42:29,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:29,077 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 66 transitions. [2022-10-15 21:42:29,078 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.8461538461538463) internal successors, (50), 14 states have internal predecessors, (50), 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) [2022-10-15 21:42:29,078 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 66 transitions. [2022-10-15 21:42:29,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-15 21:42:29,079 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:29,079 INFO L195 NwaCegarLoop]: trace histogram [5, 4, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-15 21:42:29,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-10-15 21:42:29,294 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:29,295 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:29,296 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:29,297 INFO L85 PathProgramCache]: Analyzing trace with hash -1045996311, now seen corresponding path program 2 times [2022-10-15 21:42:29,297 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:29,298 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2057727351] [2022-10-15 21:42:29,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:29,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:29,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:29,622 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:29,622 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:29,622 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2057727351] [2022-10-15 21:42:29,623 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2057727351] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:29,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [393347012] [2022-10-15 21:42:29,623 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:42:29,623 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:29,623 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:29,625 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) [2022-10-15 21:42:29,647 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 21:42:29,676 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:42:29,677 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:29,678 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 21:42:29,680 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:29,979 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:30,301 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:30,302 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [393347012] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:30,302 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:30,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 31 [2022-10-15 21:42:30,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1446282535] [2022-10-15 21:42:30,303 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:30,304 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2022-10-15 21:42:30,304 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:30,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2022-10-15 21:42:30,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=189, Invalid=803, Unknown=0, NotChecked=0, Total=992 [2022-10-15 21:42:30,306 INFO L87 Difference]: Start difference. First operand 56 states and 66 transitions. Second operand has 32 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 32 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) [2022-10-15 21:42:31,551 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:31,551 INFO L93 Difference]: Finished difference Result 79 states and 86 transitions. [2022-10-15 21:42:31,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 43 states. [2022-10-15 21:42:31,552 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 32 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) Word has length 26 [2022-10-15 21:42:31,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:31,553 INFO L225 Difference]: With dead ends: 79 [2022-10-15 21:42:31,553 INFO L226 Difference]: Without dead ends: 78 [2022-10-15 21:42:31,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 96 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 65 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1031 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1099, Invalid=3323, Unknown=0, NotChecked=0, Total=4422 [2022-10-15 21:42:31,557 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 199 mSDsluCounter, 17 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 199 SdHoareTripleChecker+Valid, 19 SdHoareTripleChecker+Invalid, 573 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:31,557 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [199 Valid, 19 Invalid, 573 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 21:42:31,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-15 21:42:31,566 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 69. [2022-10-15 21:42:31,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.1818181818181819) internal successors, (78), 68 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) [2022-10-15 21:42:31,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 78 transitions. [2022-10-15 21:42:31,568 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 78 transitions. Word has length 26 [2022-10-15 21:42:31,568 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:31,568 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 78 transitions. [2022-10-15 21:42:31,569 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 2.4516129032258065) internal successors, (76), 32 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) [2022-10-15 21:42:31,569 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 78 transitions. [2022-10-15 21:42:31,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 21:42:31,570 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:31,570 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 1, 1, 1, 1, 1] [2022-10-15 21:42:31,608 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:31,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:31,786 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:31,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:31,787 INFO L85 PathProgramCache]: Analyzing trace with hash 1933852777, now seen corresponding path program 2 times [2022-10-15 21:42:31,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:31,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1429368140] [2022-10-15 21:42:31,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:31,788 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:31,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:32,045 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:32,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:32,045 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1429368140] [2022-10-15 21:42:32,045 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1429368140] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:32,046 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1938349023] [2022-10-15 21:42:32,046 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:42:32,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:32,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:32,047 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) [2022-10-15 21:42:32,058 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 21:42:32,098 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:42:32,098 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:32,100 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 21:42:32,102 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:32,362 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:32,362 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:32,576 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:32,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1938349023] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:32,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:32,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 30 [2022-10-15 21:42:32,577 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2127331594] [2022-10-15 21:42:32,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:32,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-10-15 21:42:32,580 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:32,580 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-10-15 21:42:32,581 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=221, Invalid=709, Unknown=0, NotChecked=0, Total=930 [2022-10-15 21:42:32,582 INFO L87 Difference]: Start difference. First operand 69 states and 78 transitions. Second operand has 31 states, 30 states have (on average 2.6) internal successors, (78), 31 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) [2022-10-15 21:42:33,092 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:33,092 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2022-10-15 21:42:33,093 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2022-10-15 21:42:33,093 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 30 states have (on average 2.6) internal successors, (78), 31 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) Word has length 27 [2022-10-15 21:42:33,094 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:33,094 INFO L225 Difference]: With dead ends: 70 [2022-10-15 21:42:33,094 INFO L226 Difference]: Without dead ends: 69 [2022-10-15 21:42:33,096 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 34 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 456 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=439, Invalid=1201, Unknown=0, NotChecked=0, Total=1640 [2022-10-15 21:42:33,097 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 134 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 294 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 134 SdHoareTripleChecker+Valid, 18 SdHoareTripleChecker+Invalid, 382 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 294 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:33,097 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [134 Valid, 18 Invalid, 382 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 294 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 21:42:33,098 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-15 21:42:33,106 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-10-15 21:42:33,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 66 states have (on average 1.0909090909090908) internal successors, (72), 68 states have internal predecessors, (72), 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) [2022-10-15 21:42:33,108 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2022-10-15 21:42:33,108 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 27 [2022-10-15 21:42:33,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:33,109 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2022-10-15 21:42:33,109 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 30 states have (on average 2.6) internal successors, (78), 31 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) [2022-10-15 21:42:33,109 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2022-10-15 21:42:33,111 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2022-10-15 21:42:33,111 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:33,111 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 9, 9, 1, 1, 1, 1, 1] [2022-10-15 21:42:33,154 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:33,324 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:33,325 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:33,326 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:33,326 INFO L85 PathProgramCache]: Analyzing trace with hash -849972817, now seen corresponding path program 2 times [2022-10-15 21:42:33,326 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:33,327 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2138297625] [2022-10-15 21:42:33,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:33,327 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:33,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:33,907 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:33,907 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:33,907 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2138297625] [2022-10-15 21:42:33,908 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2138297625] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:33,908 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [908734327] [2022-10-15 21:42:33,908 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 21:42:33,908 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:33,908 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:33,909 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) [2022-10-15 21:42:33,931 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 21:42:33,971 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 21:42:33,971 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:33,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-15 21:42:33,975 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:34,230 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:34,230 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:34,587 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 216 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:34,587 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [908734327] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:34,587 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:34,587 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [21, 11, 11] total 41 [2022-10-15 21:42:34,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [141026080] [2022-10-15 21:42:34,588 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:34,588 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2022-10-15 21:42:34,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:34,589 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2022-10-15 21:42:34,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=1422, Unknown=0, NotChecked=0, Total=1722 [2022-10-15 21:42:34,591 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand has 42 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 42 states have internal predecessors, (155), 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) [2022-10-15 21:42:36,325 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:36,326 INFO L93 Difference]: Finished difference Result 200 states and 220 transitions. [2022-10-15 21:42:36,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 70 states. [2022-10-15 21:42:36,326 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 42 states have internal predecessors, (155), 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 53 [2022-10-15 21:42:36,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:36,328 INFO L225 Difference]: With dead ends: 200 [2022-10-15 21:42:36,328 INFO L226 Difference]: Without dead ends: 199 [2022-10-15 21:42:36,333 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 171 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 86 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1323 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1506, Invalid=6150, Unknown=0, NotChecked=0, Total=7656 [2022-10-15 21:42:36,334 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 188 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 158 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 1196 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 158 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:36,334 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 44 Invalid, 1196 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [158 Valid, 1038 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 21:42:36,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2022-10-15 21:42:36,350 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 161. [2022-10-15 21:42:36,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.259493670886076) internal successors, (199), 160 states have internal predecessors, (199), 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) [2022-10-15 21:42:36,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 199 transitions. [2022-10-15 21:42:36,352 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 199 transitions. Word has length 53 [2022-10-15 21:42:36,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:36,353 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 199 transitions. [2022-10-15 21:42:36,353 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 41 states have (on average 3.7804878048780486) internal successors, (155), 42 states have internal predecessors, (155), 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) [2022-10-15 21:42:36,353 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 199 transitions. [2022-10-15 21:42:36,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-15 21:42:36,354 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:36,355 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 1, 1, 1, 1, 1] [2022-10-15 21:42:36,398 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:36,568 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:36,569 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:36,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:36,570 INFO L85 PathProgramCache]: Analyzing trace with hash 1953579241, now seen corresponding path program 3 times [2022-10-15 21:42:36,570 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:36,571 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1821757750] [2022-10-15 21:42:36,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:36,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:36,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:37,139 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:37,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:37,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1821757750] [2022-10-15 21:42:37,140 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1821757750] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:37,140 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1284670454] [2022-10-15 21:42:37,140 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 21:42:37,141 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:37,141 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:37,142 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) [2022-10-15 21:42:37,146 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 21:42:37,226 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-15 21:42:37,226 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:37,228 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 23 conjunts are in the unsatisfiable core [2022-10-15 21:42:37,232 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:38,133 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:38,134 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:38,970 INFO L134 CoverageAnalysis]: Checked inductivity of 255 backedges. 0 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:38,970 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1284670454] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:38,970 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:38,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 66 [2022-10-15 21:42:38,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1454592098] [2022-10-15 21:42:38,971 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:38,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-15 21:42:38,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:38,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-15 21:42:38,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=887, Invalid=3535, Unknown=0, NotChecked=0, Total=4422 [2022-10-15 21:42:38,975 INFO L87 Difference]: Start difference. First operand 161 states and 199 transitions. Second operand has 67 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 67 states have internal predecessors, (168), 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) [2022-10-15 21:42:41,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:41,980 INFO L93 Difference]: Finished difference Result 171 states and 199 transitions. [2022-10-15 21:42:41,982 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 55 states. [2022-10-15 21:42:41,982 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 67 states have internal predecessors, (168), 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 57 [2022-10-15 21:42:41,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:41,986 INFO L225 Difference]: With dead ends: 171 [2022-10-15 21:42:41,986 INFO L226 Difference]: Without dead ends: 170 [2022-10-15 21:42:41,990 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 172 GetRequests, 70 SyntacticMatches, 0 SemanticMatches, 102 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3438 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=2692, Invalid=8020, Unknown=0, NotChecked=0, Total=10712 [2022-10-15 21:42:41,991 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 605 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 1350 mSolverCounterSat, 401 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 605 SdHoareTripleChecker+Valid, 27 SdHoareTripleChecker+Invalid, 1751 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 401 IncrementalHoareTripleChecker+Valid, 1350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:41,991 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [605 Valid, 27 Invalid, 1751 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [401 Valid, 1350 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-15 21:42:41,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 170 states. [2022-10-15 21:42:42,006 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 170 to 161. [2022-10-15 21:42:42,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 161 states, 158 states have (on average 1.1835443037974684) internal successors, (187), 160 states have internal predecessors, (187), 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) [2022-10-15 21:42:42,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 161 states to 161 states and 187 transitions. [2022-10-15 21:42:42,008 INFO L78 Accepts]: Start accepts. Automaton has 161 states and 187 transitions. Word has length 57 [2022-10-15 21:42:42,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:42,008 INFO L495 AbstractCegarLoop]: Abstraction has 161 states and 187 transitions. [2022-10-15 21:42:42,009 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 66 states have (on average 2.5454545454545454) internal successors, (168), 67 states have internal predecessors, (168), 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) [2022-10-15 21:42:42,009 INFO L276 IsEmpty]: Start isEmpty. Operand 161 states and 187 transitions. [2022-10-15 21:42:42,010 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2022-10-15 21:42:42,010 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:42,010 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 1, 1, 1, 1, 1] [2022-10-15 21:42:42,047 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:42,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:42,225 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:42,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:42,226 INFO L85 PathProgramCache]: Analyzing trace with hash -1957361943, now seen corresponding path program 3 times [2022-10-15 21:42:42,226 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:42,227 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [861863806] [2022-10-15 21:42:42,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:42,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:42,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:42,956 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 0 proven. 354 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:42,956 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:42,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [861863806] [2022-10-15 21:42:42,957 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [861863806] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:42,957 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152831600] [2022-10-15 21:42:42,957 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 21:42:42,957 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:42,958 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:42,959 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) [2022-10-15 21:42:42,978 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 21:42:43,001 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 21:42:43,001 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:43,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 21:42:43,005 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:43,079 INFO L134 CoverageAnalysis]: Checked inductivity of 354 backedges. 35 proven. 0 refuted. 0 times theorem prover too weak. 319 trivial. 0 not checked. [2022-10-15 21:42:43,080 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 21:42:43,080 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152831600] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 21:42:43,080 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 21:42:43,080 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [27] total 30 [2022-10-15 21:42:43,081 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2009789825] [2022-10-15 21:42:43,081 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 21:42:43,081 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 21:42:43,081 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:43,082 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 21:42:43,082 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=73, Invalid=857, Unknown=0, NotChecked=0, Total=930 [2022-10-15 21:42:43,083 INFO L87 Difference]: Start difference. First operand 161 states and 187 transitions. Second operand has 5 states, 4 states have (on average 3.25) 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) [2022-10-15 21:42:43,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:42:43,129 INFO L93 Difference]: Finished difference Result 161 states and 187 transitions. [2022-10-15 21:42:43,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 21:42:43,130 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) 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 66 [2022-10-15 21:42:43,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:42:43,131 INFO L225 Difference]: With dead ends: 161 [2022-10-15 21:42:43,131 INFO L226 Difference]: Without dead ends: 160 [2022-10-15 21:42:43,132 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=78, Invalid=914, Unknown=0, NotChecked=0, Total=992 [2022-10-15 21:42:43,133 INFO L413 NwaCegarLoop]: 2 mSDtfsCounter, 12 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 21:42:43,133 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 5 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 21:42:43,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2022-10-15 21:42:43,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 160. [2022-10-15 21:42:43,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 160 states, 158 states have (on average 1.0632911392405062) internal successors, (168), 159 states have internal predecessors, (168), 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) [2022-10-15 21:42:43,148 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 160 states to 160 states and 168 transitions. [2022-10-15 21:42:43,148 INFO L78 Accepts]: Start accepts. Automaton has 160 states and 168 transitions. Word has length 66 [2022-10-15 21:42:43,149 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:42:43,149 INFO L495 AbstractCegarLoop]: Abstraction has 160 states and 168 transitions. [2022-10-15 21:42:43,149 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) 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) [2022-10-15 21:42:43,149 INFO L276 IsEmpty]: Start isEmpty. Operand 160 states and 168 transitions. [2022-10-15 21:42:43,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-15 21:42:43,151 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:42:43,151 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 22, 22, 22, 1, 1, 1, 1, 1] [2022-10-15 21:42:43,198 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 21:42:43,364 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,SelfDestructingSolverStorable11 [2022-10-15 21:42:43,364 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:42:43,365 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:42:43,365 INFO L85 PathProgramCache]: Analyzing trace with hash 1337958889, now seen corresponding path program 4 times [2022-10-15 21:42:43,365 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:42:43,365 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [332568479] [2022-10-15 21:42:43,366 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:42:43,366 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:42:43,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:42:45,247 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:45,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:42:45,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [332568479] [2022-10-15 21:42:45,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [332568479] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:42:45,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2082355812] [2022-10-15 21:42:45,248 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 21:42:45,248 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:42:45,249 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:42:45,249 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) [2022-10-15 21:42:45,250 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 21:42:45,335 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 21:42:45,336 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:42:45,345 INFO L263 TraceCheckSpWp]: Trace formula consists of 280 conjuncts, 47 conjunts are in the unsatisfiable core [2022-10-15 21:42:45,351 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:42:48,757 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:48,758 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:42:52,304 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 0 proven. 1221 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:42:52,304 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2082355812] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:42:52,304 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:42:52,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [47, 47, 47] total 138 [2022-10-15 21:42:52,305 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664158553] [2022-10-15 21:42:52,305 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:42:52,306 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 139 states [2022-10-15 21:42:52,306 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:42:52,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 139 interpolants. [2022-10-15 21:42:52,313 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3515, Invalid=15667, Unknown=0, NotChecked=0, Total=19182 [2022-10-15 21:42:52,313 INFO L87 Difference]: Start difference. First operand 160 states and 168 transitions. Second operand has 139 states, 138 states have (on average 2.5217391304347827) internal successors, (348), 139 states have internal predecessors, (348), 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) [2022-10-15 21:43:05,943 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 21:43:05,944 INFO L93 Difference]: Finished difference Result 241 states and 278 transitions. [2022-10-15 21:43:05,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 94 states. [2022-10-15 21:43:05,945 INFO L78 Accepts]: Start accepts. Automaton has has 139 states, 138 states have (on average 2.5217391304347827) internal successors, (348), 139 states have internal predecessors, (348), 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 117 [2022-10-15 21:43:05,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 21:43:05,946 INFO L225 Difference]: With dead ends: 241 [2022-10-15 21:43:05,947 INFO L226 Difference]: Without dead ends: 240 [2022-10-15 21:43:05,952 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 344 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 202 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13871 ImplicationChecksByTransitivity, 16.6s TimeCoverageRelationStatistics Valid=9639, Invalid=31773, Unknown=0, NotChecked=0, Total=41412 [2022-10-15 21:43:05,953 INFO L413 NwaCegarLoop]: 4 mSDtfsCounter, 2065 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 5444 mSolverCounterSat, 1960 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2065 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 7404 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1960 IncrementalHoareTripleChecker+Valid, 5444 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2022-10-15 21:43:05,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2065 Valid, 54 Invalid, 7404 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1960 Valid, 5444 Invalid, 0 Unknown, 0 Unchecked, 3.7s Time] [2022-10-15 21:43:05,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 240 states. [2022-10-15 21:43:05,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 240 to 239. [2022-10-15 21:43:05,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 239 states, 237 states have (on average 1.0717299578059072) internal successors, (254), 238 states have internal predecessors, (254), 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) [2022-10-15 21:43:05,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 239 states to 239 states and 254 transitions. [2022-10-15 21:43:05,976 INFO L78 Accepts]: Start accepts. Automaton has 239 states and 254 transitions. Word has length 117 [2022-10-15 21:43:05,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 21:43:05,977 INFO L495 AbstractCegarLoop]: Abstraction has 239 states and 254 transitions. [2022-10-15 21:43:05,978 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 139 states, 138 states have (on average 2.5217391304347827) internal successors, (348), 139 states have internal predecessors, (348), 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) [2022-10-15 21:43:05,978 INFO L276 IsEmpty]: Start isEmpty. Operand 239 states and 254 transitions. [2022-10-15 21:43:05,980 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2022-10-15 21:43:05,980 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 21:43:05,980 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-10-15 21:43:06,008 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 21:43:06,181 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,SelfDestructingSolverStorable12 [2022-10-15 21:43:06,182 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 21:43:06,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 21:43:06,183 INFO L85 PathProgramCache]: Analyzing trace with hash 1070548331, now seen corresponding path program 3 times [2022-10-15 21:43:06,183 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 21:43:06,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1885166262] [2022-10-15 21:43:06,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 21:43:06,184 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 21:43:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 21:43:09,446 INFO L134 CoverageAnalysis]: Checked inductivity of 2295 backedges. 0 proven. 2295 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 21:43:09,446 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 21:43:09,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1885166262] [2022-10-15 21:43:09,446 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1885166262] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 21:43:09,446 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1151966376] [2022-10-15 21:43:09,447 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 21:43:09,447 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 21:43:09,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 21:43:09,448 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) [2022-10-15 21:43:09,449 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 21:43:09,492 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2022-10-15 21:43:09,492 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 21:43:09,493 INFO L263 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 21:43:09,497 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 21:43:09,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2295 backedges. 441 proven. 18 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2022-10-15 21:43:09,862 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 21:43:10,365 INFO L134 CoverageAnalysis]: Checked inductivity of 2295 backedges. 441 proven. 18 refuted. 0 times theorem prover too weak. 1836 trivial. 0 not checked. [2022-10-15 21:43:10,366 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1151966376] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 21:43:10,366 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 21:43:10,366 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [63, 7, 7] total 75 [2022-10-15 21:43:10,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [391040305] [2022-10-15 21:43:10,366 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 21:43:10,367 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 76 states [2022-10-15 21:43:10,368 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 21:43:10,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 76 interpolants. [2022-10-15 21:43:10,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=461, Invalid=5239, Unknown=0, NotChecked=0, Total=5700 [2022-10-15 21:43:10,370 INFO L87 Difference]: Start difference. First operand 239 states and 254 transitions. Second operand has 76 states, 75 states have (on average 2.6666666666666665) internal successors, (200), 76 states have internal predecessors, (200), 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)