/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/termination-dietlibc/strlcpy.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 22:31:35,453 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 22:31:35,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 22:31:35,516 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 22:31:35,622 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 22:31:35,623 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 22:31:35,624 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 22:31:35,630 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 22:31:35,689 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 22:31:35,689 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 22:31:35,690 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 22:31:35,690 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 22:31:35,693 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 22:31:35,693 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 22:31:35,696 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 22:31:35,696 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 22:31:35,697 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 22:31:35,697 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 22:31:35,698 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 22:31:35,698 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 22:31:35,699 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 22:31:35,699 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 22:31:35,699 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 22:31:35,699 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 22:31:35,699 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 22:31:35,699 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 22:31:35,700 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 22:31:35,700 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 22:31:35,700 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 22:31:35,700 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 22:31:35,700 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 22:31:35,701 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 22:31:35,701 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 22:31:35,701 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 22:31:35,701 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:31:35,702 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 22:31:35,702 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 22:31:35,702 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 22:31:35,702 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 22:31:35,702 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 22:31:35,703 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 22:31:35,703 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 22:31:36,139 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 22:31:36,176 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 22:31:36,179 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 22:31:36,181 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 22:31:36,182 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 22:31:36,184 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-dietlibc/strlcpy.i [2022-10-15 22:31:36,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a693858b/db7a85cbf5aa49ee8bc1c276ebc93aea/FLAG67e728c5a [2022-10-15 22:31:37,073 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 22:31:37,074 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-dietlibc/strlcpy.i [2022-10-15 22:31:37,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a693858b/db7a85cbf5aa49ee8bc1c276ebc93aea/FLAG67e728c5a [2022-10-15 22:31:37,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4a693858b/db7a85cbf5aa49ee8bc1c276ebc93aea [2022-10-15 22:31:37,352 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 22:31:37,358 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 22:31:37,359 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 22:31:37,360 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 22:31:37,365 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 22:31:37,365 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:37,367 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7636c349 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37, skipping insertion in model container [2022-10-15 22:31:37,367 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:37,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 22:31:37,417 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 22:31:37,782 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:31:37,795 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 22:31:37,883 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 22:31:37,917 INFO L208 MainTranslator]: Completed translation [2022-10-15 22:31:37,918 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37 WrapperNode [2022-10-15 22:31:37,918 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 22:31:37,920 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 22:31:37,920 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 22:31:37,920 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 22:31:37,929 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:37,945 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:37,974 INFO L138 Inliner]: procedures = 113, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 94 [2022-10-15 22:31:37,975 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 22:31:37,976 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 22:31:37,976 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 22:31:37,976 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 22:31:37,988 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:37,988 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:37,992 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:37,992 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:38,000 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:38,006 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:38,008 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:38,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:38,012 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 22:31:38,013 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 22:31:38,014 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 22:31:38,014 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 22:31:38,015 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (1/1) ... [2022-10-15 22:31:38,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 22:31:38,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:31:38,061 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 22:31:38,082 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 22:31:38,140 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 22:31:38,141 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 22:31:38,142 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 22:31:38,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 22:31:38,142 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 22:31:38,142 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 22:31:38,309 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 22:31:38,312 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 22:31:38,725 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 22:31:38,737 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 22:31:38,737 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-15 22:31:38,742 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:31:38 BoogieIcfgContainer [2022-10-15 22:31:38,742 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 22:31:38,746 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 22:31:38,747 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 22:31:38,752 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 22:31:38,753 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 10:31:37" (1/3) ... [2022-10-15 22:31:38,754 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa61b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:31:38, skipping insertion in model container [2022-10-15 22:31:38,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 10:31:37" (2/3) ... [2022-10-15 22:31:38,755 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@fa61b1d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 10:31:38, skipping insertion in model container [2022-10-15 22:31:38,755 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 10:31:38" (3/3) ... [2022-10-15 22:31:38,757 INFO L112 eAbstractionObserver]: Analyzing ICFG strlcpy.i [2022-10-15 22:31:38,783 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 22:31:38,784 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-15 22:31:38,879 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 22:31:38,906 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;@7f49d66, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 22:31:38,906 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-15 22:31:38,915 INFO L276 IsEmpty]: Start isEmpty. Operand has 26 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 25 states have internal predecessors, (36), 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 22:31:38,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 22:31:38,923 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:38,924 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 22:31:38,926 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 22:31:38,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:38,934 INFO L85 PathProgramCache]: Analyzing trace with hash 925668, now seen corresponding path program 1 times [2022-10-15 22:31:38,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:38,948 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1933138594] [2022-10-15 22:31:38,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:38,949 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:39,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:39,163 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 22:31:39,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:39,164 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1933138594] [2022-10-15 22:31:39,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1933138594] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:31:39,165 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:31:39,166 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:31:39,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1693664257] [2022-10-15 22:31:39,169 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:31:39,174 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:31:39,175 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:39,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:31:39,212 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:31:39,215 INFO L87 Difference]: Start difference. First operand has 26 states, 21 states have (on average 1.7142857142857142) internal successors, (36), 25 states have internal predecessors, (36), 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 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 22:31:39,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:31:39,251 INFO L93 Difference]: Finished difference Result 38 states and 51 transitions. [2022-10-15 22:31:39,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:31:39,255 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 4 [2022-10-15 22:31:39,255 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:31:39,268 INFO L225 Difference]: With dead ends: 38 [2022-10-15 22:31:39,270 INFO L226 Difference]: Without dead ends: 21 [2022-10-15 22:31:39,275 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 22:31:39,284 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 30 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:31:39,287 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 29 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:31:39,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2022-10-15 22:31:39,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2022-10-15 22:31:39,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 18 states have (on average 1.5) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:31:39,333 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2022-10-15 22:31:39,335 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 4 [2022-10-15 22:31:39,335 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:31:39,335 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2022-10-15 22:31:39,336 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 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 22:31:39,336 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-10-15 22:31:39,336 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 22:31:39,337 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:39,337 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 22:31:39,337 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 22:31:39,338 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 22:31:39,339 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:39,339 INFO L85 PathProgramCache]: Analyzing trace with hash 28695749, now seen corresponding path program 1 times [2022-10-15 22:31:39,339 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:39,340 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2120971292] [2022-10-15 22:31:39,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:39,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:39,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:39,445 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 22:31:39,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:39,447 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2120971292] [2022-10-15 22:31:39,447 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2120971292] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:31:39,448 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:31:39,448 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:31:39,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659764807] [2022-10-15 22:31:39,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:31:39,453 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:31:39,453 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:39,454 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:31:39,454 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:31:39,454 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 22:31:39,477 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:31:39,477 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2022-10-15 22:31:39,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:31:39,478 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 5 [2022-10-15 22:31:39,478 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:31:39,479 INFO L225 Difference]: With dead ends: 21 [2022-10-15 22:31:39,480 INFO L226 Difference]: Without dead ends: 20 [2022-10-15 22:31:39,480 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 22:31:39,482 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 22 mSDsluCounter, 1 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:31:39,486 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [22 Valid, 25 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:31:39,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-10-15 22:31:39,495 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-10-15 22:31:39,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 19 states have internal predecessors, (26), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:31:39,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 26 transitions. [2022-10-15 22:31:39,497 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 26 transitions. Word has length 5 [2022-10-15 22:31:39,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:31:39,497 INFO L495 AbstractCegarLoop]: Abstraction has 20 states and 26 transitions. [2022-10-15 22:31:39,497 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.5) internal successors, (5), 3 states have internal predecessors, (5), 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 22:31:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 26 transitions. [2022-10-15 22:31:39,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 22:31:39,500 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:39,500 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:31:39,500 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 22:31:39,501 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 22:31:39,507 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:39,507 INFO L85 PathProgramCache]: Analyzing trace with hash -2074214521, now seen corresponding path program 1 times [2022-10-15 22:31:39,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:39,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138018016] [2022-10-15 22:31:39,511 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:39,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:39,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:39,751 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 22:31:39,751 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:39,752 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138018016] [2022-10-15 22:31:39,752 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138018016] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:31:39,752 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:31:39,752 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 22:31:39,753 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [605345442] [2022-10-15 22:31:39,753 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:31:39,753 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 22:31:39,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:39,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 22:31:39,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 22:31:39,755 INFO L87 Difference]: Start difference. First operand 20 states and 26 transitions. Second operand has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 22:31:39,778 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:31:39,778 INFO L93 Difference]: Finished difference Result 28 states and 35 transitions. [2022-10-15 22:31:39,779 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 22:31:39,779 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 10 [2022-10-15 22:31:39,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:31:39,780 INFO L225 Difference]: With dead ends: 28 [2022-10-15 22:31:39,780 INFO L226 Difference]: Without dead ends: 24 [2022-10-15 22:31:39,780 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 22:31:39,782 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 6 mSDsluCounter, 16 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6 SdHoareTripleChecker+Valid, 39 SdHoareTripleChecker+Invalid, 9 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:31:39,783 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [6 Valid, 39 Invalid, 9 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:31:39,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2022-10-15 22:31:39,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 21. [2022-10-15 22:31:39,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 19 states have (on average 1.4210526315789473) internal successors, (27), 20 states have internal predecessors, (27), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:31:39,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 27 transitions. [2022-10-15 22:31:39,790 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 27 transitions. Word has length 10 [2022-10-15 22:31:39,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:31:39,791 INFO L495 AbstractCegarLoop]: Abstraction has 21 states and 27 transitions. [2022-10-15 22:31:39,791 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 5.0) internal successors, (10), 3 states have internal predecessors, (10), 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 22:31:39,791 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 27 transitions. [2022-10-15 22:31:39,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-15 22:31:39,792 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:39,792 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:31:39,793 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-15 22:31:39,793 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:31:39,794 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:39,794 INFO L85 PathProgramCache]: Analyzing trace with hash -475980907, now seen corresponding path program 1 times [2022-10-15 22:31:39,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:39,794 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693441208] [2022-10-15 22:31:39,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:39,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:39,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:40,159 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 22:31:40,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:40,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693441208] [2022-10-15 22:31:40,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693441208] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:31:40,160 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:31:40,161 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:31:40,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1800654433] [2022-10-15 22:31:40,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:31:40,162 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:31:40,162 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:40,163 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:31:40,163 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:31:40,163 INFO L87 Difference]: Start difference. First operand 21 states and 27 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:31:40,205 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:31:40,205 INFO L93 Difference]: Finished difference Result 36 states and 47 transitions. [2022-10-15 22:31:40,206 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:31:40,206 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-15 22:31:40,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:31:40,208 INFO L225 Difference]: With dead ends: 36 [2022-10-15 22:31:40,208 INFO L226 Difference]: Without dead ends: 35 [2022-10-15 22:31:40,209 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:31:40,210 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 18 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 18 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:31:40,211 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [18 Valid, 54 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:31:40,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-15 22:31:40,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 30. [2022-10-15 22:31:40,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 29 states have internal predecessors, (41), 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 22:31:40,221 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 41 transitions. [2022-10-15 22:31:40,221 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 41 transitions. Word has length 12 [2022-10-15 22:31:40,221 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:31:40,222 INFO L495 AbstractCegarLoop]: Abstraction has 30 states and 41 transitions. [2022-10-15 22:31:40,222 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 22:31:40,222 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 41 transitions. [2022-10-15 22:31:40,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-15 22:31:40,223 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:40,223 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:31:40,224 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-15 22:31:40,224 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:31:40,225 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:40,225 INFO L85 PathProgramCache]: Analyzing trace with hash -1870506124, now seen corresponding path program 1 times [2022-10-15 22:31:40,225 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:40,226 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [66208635] [2022-10-15 22:31:40,226 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:40,226 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:40,441 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 22:31:40,442 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:40,442 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [66208635] [2022-10-15 22:31:40,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [66208635] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:31:40,443 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:31:40,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 22:31:40,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [786239669] [2022-10-15 22:31:40,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:31:40,444 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:31:40,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:40,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:31:40,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:31:40,446 INFO L87 Difference]: Start difference. First operand 30 states and 41 transitions. Second operand has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 22:31:40,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:31:40,476 INFO L93 Difference]: Finished difference Result 30 states and 41 transitions. [2022-10-15 22:31:40,477 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:31:40,477 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 states have internal predecessors, (13), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 13 [2022-10-15 22:31:40,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:31:40,479 INFO L225 Difference]: With dead ends: 30 [2022-10-15 22:31:40,480 INFO L226 Difference]: Without dead ends: 27 [2022-10-15 22:31:40,480 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 22:31:40,482 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 15 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:31:40,483 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 52 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:31:40,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-15 22:31:40,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2022-10-15 22:31:40,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 26 states have (on average 1.3846153846153846) internal successors, (36), 26 states have internal predecessors, (36), 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 22:31:40,491 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 36 transitions. [2022-10-15 22:31:40,492 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 36 transitions. Word has length 13 [2022-10-15 22:31:40,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:31:40,492 INFO L495 AbstractCegarLoop]: Abstraction has 27 states and 36 transitions. [2022-10-15 22:31:40,493 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.333333333333333) internal successors, (13), 4 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 22:31:40,493 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 36 transitions. [2022-10-15 22:31:40,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 22:31:40,494 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:40,494 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:31:40,494 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 22:31:40,494 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:31:40,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:40,495 INFO L85 PathProgramCache]: Analyzing trace with hash 2015834191, now seen corresponding path program 1 times [2022-10-15 22:31:40,496 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:40,496 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135438643] [2022-10-15 22:31:40,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:40,496 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:40,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:40,785 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 22:31:40,788 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:40,789 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135438643] [2022-10-15 22:31:40,789 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135438643] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:31:40,789 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 22:31:40,789 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 22:31:40,790 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290378986] [2022-10-15 22:31:40,790 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:31:40,790 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 22:31:40,791 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:40,792 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 22:31:40,792 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:31:40,792 INFO L87 Difference]: Start difference. First operand 27 states and 36 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 22:31:40,844 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:31:40,845 INFO L93 Difference]: Finished difference Result 40 states and 54 transitions. [2022-10-15 22:31:40,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 22:31:40,846 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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) Word has length 15 [2022-10-15 22:31:40,846 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:31:40,849 INFO L225 Difference]: With dead ends: 40 [2022-10-15 22:31:40,850 INFO L226 Difference]: Without dead ends: 38 [2022-10-15 22:31:40,850 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-10-15 22:31:40,857 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 39 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:31:40,859 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 60 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:31:40,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-15 22:31:40,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2022-10-15 22:31:40,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.3823529411764706) internal successors, (47), 34 states have internal predecessors, (47), 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 22:31:40,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 47 transitions. [2022-10-15 22:31:40,880 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 47 transitions. Word has length 15 [2022-10-15 22:31:40,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:31:40,880 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 47 transitions. [2022-10-15 22:31:40,881 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 5 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 22:31:40,881 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 47 transitions. [2022-10-15 22:31:40,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2022-10-15 22:31:40,882 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:40,883 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:31:40,883 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 22:31:40,883 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 22:31:40,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:40,884 INFO L85 PathProgramCache]: Analyzing trace with hash 186457130, now seen corresponding path program 1 times [2022-10-15 22:31:40,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:40,885 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858101204] [2022-10-15 22:31:40,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:40,885 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:40,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:41,164 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 22:31:41,165 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:41,165 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858101204] [2022-10-15 22:31:41,165 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858101204] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:31:41,166 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1842961323] [2022-10-15 22:31:41,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:41,166 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:31:41,167 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:31:41,173 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 22:31:41,189 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 22:31:41,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:41,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 22:31:41,298 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:31:41,456 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 22:31:41,456 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:31:41,576 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 22:31:41,577 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1842961323] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:31:41,577 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:31:41,577 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 13 [2022-10-15 22:31:41,578 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754257529] [2022-10-15 22:31:41,578 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:31:41,579 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 22:31:41,579 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:41,579 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 22:31:41,580 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=85, Invalid=97, Unknown=0, NotChecked=0, Total=182 [2022-10-15 22:31:41,580 INFO L87 Difference]: Start difference. First operand 35 states and 47 transitions. Second operand has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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 22:31:41,655 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:31:41,656 INFO L93 Difference]: Finished difference Result 84 states and 121 transitions. [2022-10-15 22:31:41,656 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-15 22:31:41,657 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 17 [2022-10-15 22:31:41,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:31:41,658 INFO L225 Difference]: With dead ends: 84 [2022-10-15 22:31:41,658 INFO L226 Difference]: Without dead ends: 78 [2022-10-15 22:31:41,659 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=85, Invalid=97, Unknown=0, NotChecked=0, Total=182 [2022-10-15 22:31:41,660 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 188 mSDsluCounter, 118 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:31:41,661 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 140 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:31:41,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2022-10-15 22:31:41,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 75. [2022-10-15 22:31:41,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.3783783783783783) internal successors, (102), 74 states have internal predecessors, (102), 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 22:31:41,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 102 transitions. [2022-10-15 22:31:41,675 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 102 transitions. Word has length 17 [2022-10-15 22:31:41,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:31:41,676 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 102 transitions. [2022-10-15 22:31:41,676 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 3.1538461538461537) internal successors, (41), 14 states have internal predecessors, (41), 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 22:31:41,677 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 102 transitions. [2022-10-15 22:31:41,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 22:31:41,678 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:41,678 INFO L195 NwaCegarLoop]: trace histogram [7, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:31:41,720 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 22:31:41,892 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:31:41,893 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:31:41,894 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:41,894 INFO L85 PathProgramCache]: Analyzing trace with hash 264459825, now seen corresponding path program 2 times [2022-10-15 22:31:41,895 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:41,896 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1724164334] [2022-10-15 22:31:41,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:41,896 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:41,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:42,349 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 22:31:42,350 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:42,350 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1724164334] [2022-10-15 22:31:42,350 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1724164334] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:31:42,351 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1904322321] [2022-10-15 22:31:42,351 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 22:31:42,351 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:31:42,351 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:31:42,352 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 22:31:42,373 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 22:31:42,433 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 22:31:42,433 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:31:42,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 13 conjunts are in the unsatisfiable core [2022-10-15 22:31:42,437 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:31:42,524 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 42 trivial. 0 not checked. [2022-10-15 22:31:42,525 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 22:31:42,525 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1904322321] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 22:31:42,525 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 22:31:42,526 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [10] total 13 [2022-10-15 22:31:42,526 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1407533936] [2022-10-15 22:31:42,526 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 22:31:42,527 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 22:31:42,527 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:42,527 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 22:31:42,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-10-15 22:31:42,528 INFO L87 Difference]: Start difference. First operand 75 states and 102 transitions. Second operand has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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 22:31:42,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:31:42,555 INFO L93 Difference]: Finished difference Result 95 states and 122 transitions. [2022-10-15 22:31:42,555 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 22:31:42,555 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-15 22:31:42,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:31:42,556 INFO L225 Difference]: With dead ends: 95 [2022-10-15 22:31:42,557 INFO L226 Difference]: Without dead ends: 77 [2022-10-15 22:31:42,557 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=59, Invalid=97, Unknown=0, NotChecked=0, Total=156 [2022-10-15 22:31:42,558 INFO L413 NwaCegarLoop]: 20 mSDtfsCounter, 3 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 53 SdHoareTripleChecker+Invalid, 18 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 22:31:42,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 53 Invalid, 18 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 22:31:42,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 77 states. [2022-10-15 22:31:42,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 77 to 75. [2022-10-15 22:31:42,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 75 states, 74 states have (on average 1.364864864864865) internal successors, (101), 74 states have internal predecessors, (101), 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 22:31:42,572 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 101 transitions. [2022-10-15 22:31:42,572 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 101 transitions. Word has length 27 [2022-10-15 22:31:42,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:31:42,573 INFO L495 AbstractCegarLoop]: Abstraction has 75 states and 101 transitions. [2022-10-15 22:31:42,573 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 4.0) internal successors, (16), 4 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 22:31:42,573 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 101 transitions. [2022-10-15 22:31:42,574 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 22:31:42,574 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:42,574 INFO L195 NwaCegarLoop]: trace histogram [8, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:31:42,613 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 22:31:42,788 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable7 [2022-10-15 22:31:42,789 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:31:42,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:42,790 INFO L85 PathProgramCache]: Analyzing trace with hash -931885094, now seen corresponding path program 1 times [2022-10-15 22:31:42,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:42,791 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216228461] [2022-10-15 22:31:42,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:42,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:42,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:43,152 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:31:43,152 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:43,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216228461] [2022-10-15 22:31:43,153 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216228461] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:31:43,153 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [823903274] [2022-10-15 22:31:43,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:43,153 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:31:43,154 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:31:43,155 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 22:31:43,173 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 22:31:43,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:43,258 INFO L263 TraceCheckSpWp]: Trace formula consists of 190 conjuncts, 18 conjunts are in the unsatisfiable core [2022-10-15 22:31:43,262 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:31:43,467 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:31:43,467 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:31:43,763 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 0 proven. 56 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:31:43,763 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [823903274] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:31:43,764 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:31:43,764 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 28 [2022-10-15 22:31:43,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2060625323] [2022-10-15 22:31:43,764 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:31:43,765 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-15 22:31:43,765 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:43,766 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-15 22:31:43,767 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=370, Invalid=442, Unknown=0, NotChecked=0, Total=812 [2022-10-15 22:31:43,767 INFO L87 Difference]: Start difference. First operand 75 states and 101 transitions. Second operand has 29 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 29 states have internal predecessors, (71), 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 22:31:43,951 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:31:43,951 INFO L93 Difference]: Finished difference Result 169 states and 245 transitions. [2022-10-15 22:31:43,952 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-15 22:31:43,952 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 29 states have internal predecessors, (71), 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 22:31:43,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:31:43,954 INFO L225 Difference]: With dead ends: 169 [2022-10-15 22:31:43,954 INFO L226 Difference]: Without dead ends: 158 [2022-10-15 22:31:43,955 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=370, Invalid=442, Unknown=0, NotChecked=0, Total=812 [2022-10-15 22:31:43,956 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 539 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 52 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 52 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 22:31:43,956 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 274 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 52 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 22:31:43,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2022-10-15 22:31:43,980 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 155. [2022-10-15 22:31:43,981 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 155 states, 154 states have (on average 1.37012987012987) internal successors, (211), 154 states have internal predecessors, (211), 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 22:31:43,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 211 transitions. [2022-10-15 22:31:43,983 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 211 transitions. Word has length 27 [2022-10-15 22:31:43,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:31:43,983 INFO L495 AbstractCegarLoop]: Abstraction has 155 states and 211 transitions. [2022-10-15 22:31:43,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 2.5357142857142856) internal successors, (71), 29 states have internal predecessors, (71), 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 22:31:43,984 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 211 transitions. [2022-10-15 22:31:43,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2022-10-15 22:31:43,986 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:43,986 INFO L195 NwaCegarLoop]: trace histogram [18, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:31:44,022 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 22:31:44,199 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:31:44,200 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 22:31:44,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:44,201 INFO L85 PathProgramCache]: Analyzing trace with hash -353194200, now seen corresponding path program 2 times [2022-10-15 22:31:44,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:44,202 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [793111634] [2022-10-15 22:31:44,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:44,203 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:44,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:45,049 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:31:45,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:45,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [793111634] [2022-10-15 22:31:45,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [793111634] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:31:45,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [35327918] [2022-10-15 22:31:45,050 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 22:31:45,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:31:45,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:31:45,052 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 22:31:45,061 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 22:31:45,158 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 22:31:45,158 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:31:45,161 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 38 conjunts are in the unsatisfiable core [2022-10-15 22:31:45,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:31:45,735 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:31:45,736 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:31:46,872 INFO L134 CoverageAnalysis]: Checked inductivity of 306 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:31:46,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [35327918] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:31:46,872 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:31:46,873 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 20, 20] total 58 [2022-10-15 22:31:46,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1868181467] [2022-10-15 22:31:46,873 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:31:46,874 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 59 states [2022-10-15 22:31:46,874 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:46,875 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 59 interpolants. [2022-10-15 22:31:46,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1540, Invalid=1882, Unknown=0, NotChecked=0, Total=3422 [2022-10-15 22:31:46,878 INFO L87 Difference]: Start difference. First operand 155 states and 211 transitions. Second operand has 59 states, 58 states have (on average 2.2586206896551726) internal successors, (131), 59 states have internal predecessors, (131), 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 22:31:47,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:31:47,511 INFO L93 Difference]: Finished difference Result 339 states and 495 transitions. [2022-10-15 22:31:47,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2022-10-15 22:31:47,512 INFO L78 Accepts]: Start accepts. Automaton has has 59 states, 58 states have (on average 2.2586206896551726) internal successors, (131), 59 states have internal predecessors, (131), 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 47 [2022-10-15 22:31:47,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:31:47,519 INFO L225 Difference]: With dead ends: 339 [2022-10-15 22:31:47,521 INFO L226 Difference]: Without dead ends: 318 [2022-10-15 22:31:47,532 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 112 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 153 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=1540, Invalid=1882, Unknown=0, NotChecked=0, Total=3422 [2022-10-15 22:31:47,533 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 1410 mSDsluCounter, 512 mSDsCounter, 0 mSdLazyCounter, 105 mSolverCounterSat, 169 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1410 SdHoareTripleChecker+Valid, 534 SdHoareTripleChecker+Invalid, 274 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 169 IncrementalHoareTripleChecker+Valid, 105 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 22:31:47,534 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1410 Valid, 534 Invalid, 274 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [169 Valid, 105 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 22:31:47,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 318 states. [2022-10-15 22:31:47,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 318 to 315. [2022-10-15 22:31:47,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 314 states have (on average 1.372611464968153) internal successors, (431), 314 states have internal predecessors, (431), 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 22:31:47,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 431 transitions. [2022-10-15 22:31:47,596 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 431 transitions. Word has length 47 [2022-10-15 22:31:47,597 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:31:47,597 INFO L495 AbstractCegarLoop]: Abstraction has 315 states and 431 transitions. [2022-10-15 22:31:47,597 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 59 states, 58 states have (on average 2.2586206896551726) internal successors, (131), 59 states have internal predecessors, (131), 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 22:31:47,597 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 431 transitions. [2022-10-15 22:31:47,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2022-10-15 22:31:47,601 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:31:47,601 INFO L195 NwaCegarLoop]: trace histogram [38, 37, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:31:47,641 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 22:31:47,814 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:31:47,815 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:31:47,816 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:31:47,816 INFO L85 PathProgramCache]: Analyzing trace with hash -918137660, now seen corresponding path program 3 times [2022-10-15 22:31:47,817 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:31:47,817 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1847000260] [2022-10-15 22:31:47,817 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:31:47,818 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:31:47,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:31:50,325 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:31:50,326 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:31:50,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1847000260] [2022-10-15 22:31:50,326 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1847000260] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:31:50,326 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1332442837] [2022-10-15 22:31:50,326 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 22:31:50,326 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:31:50,327 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:31:50,328 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 22:31:50,331 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 22:31:50,688 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 38 check-sat command(s) [2022-10-15 22:31:50,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:31:50,710 INFO L263 TraceCheckSpWp]: Trace formula consists of 520 conjuncts, 78 conjunts are in the unsatisfiable core [2022-10-15 22:31:50,716 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:31:52,908 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:31:52,908 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 22:31:56,922 INFO L134 CoverageAnalysis]: Checked inductivity of 1406 backedges. 0 proven. 1406 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:31:56,922 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1332442837] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 22:31:56,922 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 22:31:56,923 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 40, 40] total 118 [2022-10-15 22:31:56,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414933170] [2022-10-15 22:31:56,923 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 22:31:56,924 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 119 states [2022-10-15 22:31:56,924 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 22:31:56,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 119 interpolants. [2022-10-15 22:31:56,933 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6280, Invalid=7762, Unknown=0, NotChecked=0, Total=14042 [2022-10-15 22:31:56,934 INFO L87 Difference]: Start difference. First operand 315 states and 431 transitions. Second operand has 119 states, 118 states have (on average 2.1271186440677967) internal successors, (251), 119 states have internal predecessors, (251), 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 22:32:00,227 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 22:32:00,228 INFO L93 Difference]: Finished difference Result 679 states and 995 transitions. [2022-10-15 22:32:00,228 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2022-10-15 22:32:00,228 INFO L78 Accepts]: Start accepts. Automaton has has 119 states, 118 states have (on average 2.1271186440677967) internal successors, (251), 119 states have internal predecessors, (251), 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 87 [2022-10-15 22:32:00,229 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 22:32:00,235 INFO L225 Difference]: With dead ends: 679 [2022-10-15 22:32:00,235 INFO L226 Difference]: Without dead ends: 638 [2022-10-15 22:32:00,239 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 212 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 117 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 703 ImplicationChecksByTransitivity, 6.5s TimeCoverageRelationStatistics Valid=6280, Invalid=7762, Unknown=0, NotChecked=0, Total=14042 [2022-10-15 22:32:00,240 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 2398 mSDsluCounter, 1028 mSDsCounter, 0 mSdLazyCounter, 208 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2398 SdHoareTripleChecker+Valid, 1050 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 22:32:00,241 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2398 Valid, 1050 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 208 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 22:32:00,242 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 638 states. [2022-10-15 22:32:00,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 638 to 635. [2022-10-15 22:32:00,295 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 635 states, 634 states have (on average 1.3738170347003154) internal successors, (871), 634 states have internal predecessors, (871), 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 22:32:00,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 635 states to 635 states and 871 transitions. [2022-10-15 22:32:00,298 INFO L78 Accepts]: Start accepts. Automaton has 635 states and 871 transitions. Word has length 87 [2022-10-15 22:32:00,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 22:32:00,298 INFO L495 AbstractCegarLoop]: Abstraction has 635 states and 871 transitions. [2022-10-15 22:32:00,299 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 119 states, 118 states have (on average 2.1271186440677967) internal successors, (251), 119 states have internal predecessors, (251), 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 22:32:00,299 INFO L276 IsEmpty]: Start isEmpty. Operand 635 states and 871 transitions. [2022-10-15 22:32:00,304 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2022-10-15 22:32:00,304 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 22:32:00,305 INFO L195 NwaCegarLoop]: trace histogram [78, 77, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 22:32:00,332 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 22:32:00,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-15 22:32:00,520 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 1 more)] === [2022-10-15 22:32:00,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 22:32:00,521 INFO L85 PathProgramCache]: Analyzing trace with hash 1151155196, now seen corresponding path program 4 times [2022-10-15 22:32:00,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 22:32:00,521 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1138078623] [2022-10-15 22:32:00,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 22:32:00,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 22:32:00,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 22:32:08,581 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 6006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:08,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 22:32:08,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1138078623] [2022-10-15 22:32:08,582 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1138078623] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 22:32:08,582 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [700904611] [2022-10-15 22:32:08,583 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 22:32:08,583 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 22:32:08,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 22:32:08,584 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 22:32:08,585 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 22:32:08,803 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 22:32:08,803 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 22:32:08,812 INFO L263 TraceCheckSpWp]: Trace formula consists of 960 conjuncts, 158 conjunts are in the unsatisfiable core [2022-10-15 22:32:08,827 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 22:32:17,581 INFO L134 CoverageAnalysis]: Checked inductivity of 6006 backedges. 0 proven. 6006 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 22:32:17,582 INFO L328 TraceCheckSpWp]: Computing backward predicates...