/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/sorting_selectionsort_2_ground.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:10:28,802 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:10:28,806 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:10:28,853 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-15 20:10:28,943 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:10:28,944 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:10:28,945 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:10:28,946 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 20:10:29,004 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:10:29,005 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:10:29,005 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:10:29,006 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:10:29,007 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:10:29,008 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:10:29,010 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:10:29,010 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:10:29,010 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:10:29,011 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:10:29,012 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:10:29,012 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:10:29,012 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:10:29,012 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:10:29,013 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:10:29,013 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:10:29,013 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:10:29,013 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:10:29,013 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:10:29,014 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:10:29,014 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:10:29,014 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:10:29,014 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:10:29,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:10:29,015 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:10:29,015 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:10:29,015 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:10:29,015 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:10:29,015 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:10:29,016 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:10:29,016 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:10:29,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:10:29,016 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:10:29,017 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:10:29,409 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:10:29,439 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:10:29,442 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:10:29,444 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:10:29,445 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:10:29,446 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/sorting_selectionsort_2_ground.i [2022-10-15 20:10:29,530 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c89ba7d64/4529abd5b7b841538db55f199887421a/FLAGb738afc92 [2022-10-15 20:10:30,185 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:10:30,185 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_selectionsort_2_ground.i [2022-10-15 20:10:30,194 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c89ba7d64/4529abd5b7b841538db55f199887421a/FLAGb738afc92 [2022-10-15 20:10:30,553 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c89ba7d64/4529abd5b7b841538db55f199887421a [2022-10-15 20:10:30,556 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:10:30,563 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:10:30,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:10:30,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:10:30,570 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:10:30,571 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:30,572 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ded41c7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30, skipping insertion in model container [2022-10-15 20:10:30,573 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:30,581 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:10:30,603 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:10:30,796 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_selectionsort_2_ground.i[823,836] [2022-10-15 20:10:30,852 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:10:30,867 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:10:30,890 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/sorting_selectionsort_2_ground.i[823,836] [2022-10-15 20:10:30,929 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:10:30,948 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:10:30,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30 WrapperNode [2022-10-15 20:10:30,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:10:30,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:10:30,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:10:30,951 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:10:30,960 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:30,972 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:31,004 INFO L138 Inliner]: procedures = 16, calls = 25, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 138 [2022-10-15 20:10:31,004 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:10:31,005 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:10:31,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:10:31,006 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:10:31,019 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:31,019 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:31,022 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:31,023 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:31,030 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:31,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:31,039 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:31,040 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:31,044 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:10:31,045 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:10:31,045 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:10:31,046 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:10:31,047 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (1/1) ... [2022-10-15 20:10:31,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:10:31,076 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:31,098 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 20:10:31,125 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 20:10:31,185 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:10:31,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:10:31,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:10:31,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:10:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:10:31,187 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:10:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:10:31,187 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2022-10-15 20:10:31,188 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2022-10-15 20:10:31,188 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:10:31,277 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:10:31,279 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:10:31,671 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:10:31,692 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:10:31,692 INFO L300 CfgBuilder]: Removed 8 assume(true) statements. [2022-10-15 20:10:31,696 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:31 BoogieIcfgContainer [2022-10-15 20:10:31,697 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:10:31,701 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:10:31,701 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:10:31,706 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:10:31,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:10:30" (1/3) ... [2022-10-15 20:10:31,708 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b239f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:10:31, skipping insertion in model container [2022-10-15 20:10:31,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:10:30" (2/3) ... [2022-10-15 20:10:31,711 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@b239f3d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:10:31, skipping insertion in model container [2022-10-15 20:10:31,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:10:31" (3/3) ... [2022-10-15 20:10:31,713 INFO L112 eAbstractionObserver]: Analyzing ICFG sorting_selectionsort_2_ground.i [2022-10-15 20:10:31,778 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:10:31,778 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2022-10-15 20:10:31,893 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:10:31,909 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;@139312b6, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:10:31,910 INFO L358 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2022-10-15 20:10:31,927 INFO L276 IsEmpty]: Start isEmpty. Operand has 84 states, 55 states have (on average 1.7818181818181817) internal successors, (98), 79 states have internal predecessors, (98), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 20:10:31,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-15 20:10:31,935 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:31,936 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-15 20:10:31,938 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:31,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:31,947 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-15 20:10:31,959 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:31,960 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [189302838] [2022-10-15 20:10:31,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:31,961 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:32,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:32,399 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 20:10:32,400 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:32,400 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [189302838] [2022-10-15 20:10:32,401 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [189302838] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:32,402 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:32,402 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:32,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [775251403] [2022-10-15 20:10:32,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:32,412 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:32,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:32,448 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:32,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:32,452 INFO L87 Difference]: Start difference. First operand has 84 states, 55 states have (on average 1.7818181818181817) internal successors, (98), 79 states have internal predecessors, (98), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 20:10:32,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:32,701 INFO L93 Difference]: Finished difference Result 207 states and 272 transitions. [2022-10-15 20:10:32,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:32,705 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 20:10:32,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:32,733 INFO L225 Difference]: With dead ends: 207 [2022-10-15 20:10:32,737 INFO L226 Difference]: Without dead ends: 124 [2022-10-15 20:10:32,747 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:32,762 INFO L413 NwaCegarLoop]: 79 mSDtfsCounter, 47 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:32,764 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 223 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:10:32,812 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2022-10-15 20:10:32,885 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 114. [2022-10-15 20:10:32,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 84 states have (on average 1.5833333333333333) internal successors, (133), 107 states have internal predecessors, (133), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-15 20:10:32,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 143 transitions. [2022-10-15 20:10:32,906 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 143 transitions. Word has length 5 [2022-10-15 20:10:32,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:32,906 INFO L495 AbstractCegarLoop]: Abstraction has 114 states and 143 transitions. [2022-10-15 20:10:32,907 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 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 20:10:32,908 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 143 transitions. [2022-10-15 20:10:32,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-15 20:10:32,909 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:32,909 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-15 20:10:32,909 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:10:32,910 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:32,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:32,912 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-15 20:10:32,912 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:32,912 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1667955430] [2022-10-15 20:10:32,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:32,913 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:32,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:33,067 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:10:33,067 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:33,067 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1667955430] [2022-10-15 20:10:33,068 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1667955430] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:33,068 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:33,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:33,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [849325684] [2022-10-15 20:10:33,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:33,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:33,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:33,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:33,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:33,072 INFO L87 Difference]: Start difference. First operand 114 states and 143 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:33,217 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:33,217 INFO L93 Difference]: Finished difference Result 114 states and 143 transitions. [2022-10-15 20:10:33,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:33,221 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-15 20:10:33,221 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:33,223 INFO L225 Difference]: With dead ends: 114 [2022-10-15 20:10:33,225 INFO L226 Difference]: Without dead ends: 110 [2022-10-15 20:10:33,225 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:33,228 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 52 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 154 SdHoareTripleChecker+Invalid, 52 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:33,234 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 154 Invalid, 52 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:10:33,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2022-10-15 20:10:33,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2022-10-15 20:10:33,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 110 states, 84 states have (on average 1.5357142857142858) internal successors, (129), 103 states have internal predecessors, (129), 5 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-15 20:10:33,272 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 139 transitions. [2022-10-15 20:10:33,273 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 139 transitions. Word has length 9 [2022-10-15 20:10:33,273 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:33,273 INFO L495 AbstractCegarLoop]: Abstraction has 110 states and 139 transitions. [2022-10-15 20:10:33,279 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:33,279 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 139 transitions. [2022-10-15 20:10:33,280 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:10:33,280 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:33,280 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-15 20:10:33,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:10:33,281 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:33,281 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:33,282 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-15 20:10:33,282 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:33,282 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550291833] [2022-10-15 20:10:33,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:33,286 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:33,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:33,398 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:10:33,398 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:33,398 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550291833] [2022-10-15 20:10:33,399 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550291833] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:33,399 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976746924] [2022-10-15 20:10:33,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:33,400 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:33,400 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:33,402 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 20:10:33,428 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 20:10:33,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:33,501 INFO L263 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-15 20:10:33,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:33,619 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:10:33,619 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:33,620 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1976746924] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:33,620 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:33,620 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-15 20:10:33,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [912347610] [2022-10-15 20:10:33,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:33,629 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-15 20:10:33,629 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:33,630 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-15 20:10:33,631 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-15 20:10:33,632 INFO L87 Difference]: Start difference. First operand 110 states and 139 transitions. Second operand has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:10:33,829 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:33,829 INFO L93 Difference]: Finished difference Result 120 states and 139 transitions. [2022-10-15 20:10:33,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:10:33,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:10:33,831 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:33,836 INFO L225 Difference]: With dead ends: 120 [2022-10-15 20:10:33,837 INFO L226 Difference]: Without dead ends: 116 [2022-10-15 20:10:33,838 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:10:33,843 INFO L413 NwaCegarLoop]: 97 mSDtfsCounter, 134 mSDsluCounter, 136 mSDsCounter, 0 mSdLazyCounter, 95 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 105 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 95 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:33,850 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 233 Invalid, 105 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 95 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:10:33,855 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 116 states. [2022-10-15 20:10:33,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 116 to 73. [2022-10-15 20:10:33,885 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 53 states have (on average 1.471698113207547) internal successors, (78), 68 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 20:10:33,890 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-10-15 20:10:33,891 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 10 [2022-10-15 20:10:33,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:33,895 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-10-15 20:10:33,895 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.0) internal successors, (10), 6 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 20:10:33,896 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-10-15 20:10:33,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-15 20:10:33,896 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:33,897 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:33,945 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 20:10:34,111 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:34,112 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:34,112 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:34,113 INFO L85 PathProgramCache]: Analyzing trace with hash -1289978878, now seen corresponding path program 1 times [2022-10-15 20:10:34,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:34,115 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1937721044] [2022-10-15 20:10:34,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:34,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:34,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:34,210 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:10:34,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:34,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1937721044] [2022-10-15 20:10:34,211 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1937721044] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:34,211 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1206406231] [2022-10-15 20:10:34,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:34,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:34,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:34,213 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 20:10:34,235 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 20:10:34,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:34,272 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:10:34,274 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:34,288 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:10:34,288 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:34,288 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1206406231] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:34,289 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:34,289 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:10:34,289 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1786695305] [2022-10-15 20:10:34,290 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:34,290 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:10:34,290 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:34,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:10:34,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:34,291 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:34,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:34,314 INFO L93 Difference]: Finished difference Result 137 states and 160 transitions. [2022-10-15 20:10:34,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:10:34,315 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-15 20:10:34,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:34,316 INFO L225 Difference]: With dead ends: 137 [2022-10-15 20:10:34,316 INFO L226 Difference]: Without dead ends: 73 [2022-10-15 20:10:34,317 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:34,319 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 5 mSDsluCounter, 70 mSDsCounter, 0 mSdLazyCounter, 8 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 8 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:34,319 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 146 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 8 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:34,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-15 20:10:34,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-10-15 20:10:34,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 54 states have (on average 1.4444444444444444) internal successors, (78), 68 states have internal predecessors, (78), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-15 20:10:34,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 84 transitions. [2022-10-15 20:10:34,330 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 84 transitions. Word has length 14 [2022-10-15 20:10:34,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:34,331 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 84 transitions. [2022-10-15 20:10:34,331 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:34,331 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 84 transitions. [2022-10-15 20:10:34,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-15 20:10:34,332 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:34,332 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:34,369 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 20:10:34,547 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,SelfDestructingSolverStorable3 [2022-10-15 20:10:34,548 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:34,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:34,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1334639472, now seen corresponding path program 1 times [2022-10-15 20:10:34,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:34,551 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [670428835] [2022-10-15 20:10:34,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:34,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:34,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:34,625 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:10:34,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:34,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [670428835] [2022-10-15 20:10:34,626 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [670428835] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:34,626 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1257118469] [2022-10-15 20:10:34,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:34,627 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:34,627 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:34,628 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 20:10:34,646 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 20:10:34,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:34,700 INFO L263 TraceCheckSpWp]: Trace formula consists of 68 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:10:34,702 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:34,732 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:10:34,732 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:34,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:10:34,772 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1257118469] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:34,772 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:34,772 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-15 20:10:34,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1313309903] [2022-10-15 20:10:34,773 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:34,773 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-15 20:10:34,774 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:34,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-15 20:10:34,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:10:34,775 INFO L87 Difference]: Start difference. First operand 73 states and 84 transitions. Second operand has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 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 20:10:34,956 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:34,956 INFO L93 Difference]: Finished difference Result 270 states and 320 transitions. [2022-10-15 20:10:34,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2022-10-15 20:10:34,957 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 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) Word has length 15 [2022-10-15 20:10:34,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:34,959 INFO L225 Difference]: With dead ends: 270 [2022-10-15 20:10:34,959 INFO L226 Difference]: Without dead ends: 204 [2022-10-15 20:10:34,960 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:10:34,961 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 304 mSDsluCounter, 243 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 312 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:34,962 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 312 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:10:34,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 204 states. [2022-10-15 20:10:34,982 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 204 to 177. [2022-10-15 20:10:34,983 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 152 states have (on average 1.4539473684210527) internal successors, (221), 166 states have internal predecessors, (221), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-10-15 20:10:34,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 239 transitions. [2022-10-15 20:10:34,985 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 239 transitions. Word has length 15 [2022-10-15 20:10:34,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:34,986 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 239 transitions. [2022-10-15 20:10:34,986 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.6) internal successors, (26), 10 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 20:10:34,986 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 239 transitions. [2022-10-15 20:10:34,987 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 20:10:34,987 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:34,988 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:35,014 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 20:10:35,194 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:35,195 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:35,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:35,196 INFO L85 PathProgramCache]: Analyzing trace with hash -1215876728, now seen corresponding path program 2 times [2022-10-15 20:10:35,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:35,197 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1434808930] [2022-10-15 20:10:35,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:35,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:35,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:35,387 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:10:35,387 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:35,387 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1434808930] [2022-10-15 20:10:35,388 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1434808930] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:35,388 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:35,388 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:35,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1447230747] [2022-10-15 20:10:35,389 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:35,391 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:35,391 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:35,393 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:35,393 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:35,393 INFO L87 Difference]: Start difference. First operand 177 states and 239 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 20:10:35,478 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:35,479 INFO L93 Difference]: Finished difference Result 190 states and 244 transitions. [2022-10-15 20:10:35,479 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:35,479 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 23 [2022-10-15 20:10:35,480 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:35,481 INFO L225 Difference]: With dead ends: 190 [2022-10-15 20:10:35,482 INFO L226 Difference]: Without dead ends: 189 [2022-10-15 20:10:35,482 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:35,483 INFO L413 NwaCegarLoop]: 63 mSDtfsCounter, 51 mSDsluCounter, 122 mSDsCounter, 0 mSdLazyCounter, 60 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 185 SdHoareTripleChecker+Invalid, 62 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 60 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:35,484 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 185 Invalid, 62 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 60 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:10:35,485 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2022-10-15 20:10:35,500 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 180. [2022-10-15 20:10:35,501 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 180 states, 155 states have (on average 1.4516129032258065) internal successors, (225), 169 states have internal predecessors, (225), 9 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2022-10-15 20:10:35,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 180 states to 180 states and 243 transitions. [2022-10-15 20:10:35,503 INFO L78 Accepts]: Start accepts. Automaton has 180 states and 243 transitions. Word has length 23 [2022-10-15 20:10:35,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:35,504 INFO L495 AbstractCegarLoop]: Abstraction has 180 states and 243 transitions. [2022-10-15 20:10:35,504 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 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 20:10:35,504 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states and 243 transitions. [2022-10-15 20:10:35,508 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-15 20:10:35,508 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:35,509 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:35,509 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 20:10:35,509 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:35,510 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:35,510 INFO L85 PathProgramCache]: Analyzing trace with hash 1445268429, now seen corresponding path program 1 times [2022-10-15 20:10:35,510 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:35,510 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1779264487] [2022-10-15 20:10:35,510 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:35,511 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:35,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:35,640 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-15 20:10:35,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:35,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1779264487] [2022-10-15 20:10:35,642 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1779264487] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:35,642 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422649210] [2022-10-15 20:10:35,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:35,642 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:35,643 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:35,649 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 20:10:35,665 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 20:10:35,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:35,717 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-15 20:10:35,721 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:35,822 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:10:35,822 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:35,945 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:10:35,945 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422649210] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:35,946 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:35,946 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 9, 9] total 19 [2022-10-15 20:10:35,946 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656872950] [2022-10-15 20:10:35,946 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:35,947 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2022-10-15 20:10:35,947 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:35,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2022-10-15 20:10:35,948 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=256, Unknown=0, NotChecked=0, Total=342 [2022-10-15 20:10:35,948 INFO L87 Difference]: Start difference. First operand 180 states and 243 transitions. Second operand has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 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 20:10:36,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:36,539 INFO L93 Difference]: Finished difference Result 551 states and 690 transitions. [2022-10-15 20:10:36,540 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-10-15 20:10:36,540 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 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 20:10:36,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:36,543 INFO L225 Difference]: With dead ends: 551 [2022-10-15 20:10:36,543 INFO L226 Difference]: Without dead ends: 386 [2022-10-15 20:10:36,545 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 175 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=267, Invalid=855, Unknown=0, NotChecked=0, Total=1122 [2022-10-15 20:10:36,546 INFO L413 NwaCegarLoop]: 73 mSDtfsCounter, 911 mSDsluCounter, 655 mSDsCounter, 0 mSdLazyCounter, 361 mSolverCounterSat, 111 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 912 SdHoareTripleChecker+Valid, 728 SdHoareTripleChecker+Invalid, 472 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 111 IncrementalHoareTripleChecker+Valid, 361 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:36,546 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [912 Valid, 728 Invalid, 472 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [111 Valid, 361 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-15 20:10:36,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 386 states. [2022-10-15 20:10:36,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 386 to 321. [2022-10-15 20:10:36,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 321 states, 288 states have (on average 1.4444444444444444) internal successors, (416), 302 states have internal predecessors, (416), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-15 20:10:36,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 450 transitions. [2022-10-15 20:10:36,573 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 450 transitions. Word has length 27 [2022-10-15 20:10:36,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:36,574 INFO L495 AbstractCegarLoop]: Abstraction has 321 states and 450 transitions. [2022-10-15 20:10:36,574 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 2.9473684210526314) internal successors, (56), 19 states have internal predecessors, (56), 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 20:10:36,574 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 450 transitions. [2022-10-15 20:10:36,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-15 20:10:36,575 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:36,576 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:36,610 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 20:10:36,789 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:36,790 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:36,791 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:36,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1335813292, now seen corresponding path program 1 times [2022-10-15 20:10:36,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:36,792 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329101611] [2022-10-15 20:10:36,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:36,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:36,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:36,917 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-15 20:10:36,917 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:36,917 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329101611] [2022-10-15 20:10:36,917 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329101611] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:36,918 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [380236120] [2022-10-15 20:10:36,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:36,918 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:36,918 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:36,920 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 20:10:36,926 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 20:10:37,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:37,011 INFO L263 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:10:37,015 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:37,038 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-15 20:10:37,039 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:37,039 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [380236120] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:37,039 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:37,039 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:10:37,040 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [245156753] [2022-10-15 20:10:37,040 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:37,040 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:10:37,041 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:37,041 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:10:37,041 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:37,042 INFO L87 Difference]: Start difference. First operand 321 states and 450 transitions. Second operand has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:37,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:37,123 INFO L93 Difference]: Finished difference Result 455 states and 654 transitions. [2022-10-15 20:10:37,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:10:37,123 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 44 [2022-10-15 20:10:37,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:37,129 INFO L225 Difference]: With dead ends: 455 [2022-10-15 20:10:37,129 INFO L226 Difference]: Without dead ends: 453 [2022-10-15 20:10:37,130 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:37,131 INFO L413 NwaCegarLoop]: 76 mSDtfsCounter, 33 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 34 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 132 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 34 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:37,131 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 132 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:37,133 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-10-15 20:10:37,163 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 339. [2022-10-15 20:10:37,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 339 states, 306 states have (on average 1.4444444444444444) internal successors, (442), 320 states have internal predecessors, (442), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-15 20:10:37,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 339 states to 339 states and 476 transitions. [2022-10-15 20:10:37,167 INFO L78 Accepts]: Start accepts. Automaton has 339 states and 476 transitions. Word has length 44 [2022-10-15 20:10:37,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:37,167 INFO L495 AbstractCegarLoop]: Abstraction has 339 states and 476 transitions. [2022-10-15 20:10:37,167 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.0) internal successors, (20), 3 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:37,168 INFO L276 IsEmpty]: Start isEmpty. Operand 339 states and 476 transitions. [2022-10-15 20:10:37,169 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2022-10-15 20:10:37,169 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:37,169 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:37,215 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 20:10:37,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:37,384 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:37,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:37,385 INFO L85 PathProgramCache]: Analyzing trace with hash 1539461012, now seen corresponding path program 1 times [2022-10-15 20:10:37,386 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:37,386 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [776018455] [2022-10-15 20:10:37,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:37,386 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:37,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:37,508 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-15 20:10:37,508 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:37,508 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [776018455] [2022-10-15 20:10:37,508 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [776018455] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:37,509 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2123824644] [2022-10-15 20:10:37,509 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:37,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:37,509 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:37,511 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 20:10:37,530 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 20:10:37,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:37,589 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 2 conjunts are in the unsatisfiable core [2022-10-15 20:10:37,591 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:37,603 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 92 trivial. 0 not checked. [2022-10-15 20:10:37,603 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:37,603 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2123824644] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:37,604 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:37,604 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [5] total 6 [2022-10-15 20:10:37,604 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264611477] [2022-10-15 20:10:37,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:37,605 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:10:37,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:37,606 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:10:37,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:37,606 INFO L87 Difference]: Start difference. First operand 339 states and 476 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 20:10:37,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:37,673 INFO L93 Difference]: Finished difference Result 455 states and 645 transitions. [2022-10-15 20:10:37,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:10:37,674 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 45 [2022-10-15 20:10:37,674 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:37,678 INFO L225 Difference]: With dead ends: 455 [2022-10-15 20:10:37,678 INFO L226 Difference]: Without dead ends: 453 [2022-10-15 20:10:37,678 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2022-10-15 20:10:37,679 INFO L413 NwaCegarLoop]: 84 mSDtfsCounter, 45 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:37,680 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 136 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:37,681 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 453 states. [2022-10-15 20:10:37,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 453 to 348. [2022-10-15 20:10:37,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 348 states, 315 states have (on average 1.4317460317460318) internal successors, (451), 329 states have internal predecessors, (451), 17 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2022-10-15 20:10:37,713 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 348 states to 348 states and 485 transitions. [2022-10-15 20:10:37,713 INFO L78 Accepts]: Start accepts. Automaton has 348 states and 485 transitions. Word has length 45 [2022-10-15 20:10:37,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:37,714 INFO L495 AbstractCegarLoop]: Abstraction has 348 states and 485 transitions. [2022-10-15 20:10:37,714 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 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 20:10:37,714 INFO L276 IsEmpty]: Start isEmpty. Operand 348 states and 485 transitions. [2022-10-15 20:10:37,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2022-10-15 20:10:37,716 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:37,716 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:37,754 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 20:10:37,929 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:37,930 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:37,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:37,931 INFO L85 PathProgramCache]: Analyzing trace with hash 422331484, now seen corresponding path program 1 times [2022-10-15 20:10:37,932 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:37,932 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1747543502] [2022-10-15 20:10:37,932 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:37,933 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:37,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:38,061 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 91 trivial. 0 not checked. [2022-10-15 20:10:38,061 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:38,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1747543502] [2022-10-15 20:10:38,062 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1747543502] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:38,062 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [685610940] [2022-10-15 20:10:38,062 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:38,062 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:38,063 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:38,064 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:10:38,076 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:10:38,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:38,156 INFO L263 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-15 20:10:38,159 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:38,362 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:10:38,363 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:38,706 INFO L134 CoverageAnalysis]: Checked inductivity of 92 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:10:38,707 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [685610940] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:38,707 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:38,707 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 17, 17] total 35 [2022-10-15 20:10:38,707 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2010464720] [2022-10-15 20:10:38,708 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:38,708 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2022-10-15 20:10:38,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:38,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2022-10-15 20:10:38,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=895, Unknown=0, NotChecked=0, Total=1190 [2022-10-15 20:10:38,710 INFO L87 Difference]: Start difference. First operand 348 states and 485 transitions. Second operand has 35 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:39,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:39,938 INFO L93 Difference]: Finished difference Result 1121 states and 1425 transitions. [2022-10-15 20:10:39,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-15 20:10:39,939 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2022-10-15 20:10:39,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:39,945 INFO L225 Difference]: With dead ends: 1121 [2022-10-15 20:10:39,945 INFO L226 Difference]: Without dead ends: 804 [2022-10-15 20:10:39,950 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 130 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 64 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 899 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=989, Invalid=3301, Unknown=0, NotChecked=0, Total=4290 [2022-10-15 20:10:39,952 INFO L413 NwaCegarLoop]: 88 mSDtfsCounter, 1678 mSDsluCounter, 929 mSDsCounter, 0 mSdLazyCounter, 495 mSolverCounterSat, 134 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1710 SdHoareTripleChecker+Valid, 1017 SdHoareTripleChecker+Invalid, 629 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 134 IncrementalHoareTripleChecker+Valid, 495 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:39,953 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1710 Valid, 1017 Invalid, 629 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [134 Valid, 495 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2022-10-15 20:10:39,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 804 states. [2022-10-15 20:10:40,020 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 804 to 664. [2022-10-15 20:10:40,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 664 states, 615 states have (on average 1.4308943089430894) internal successors, (880), 629 states have internal predecessors, (880), 33 states have call successors, (33), 1 states have call predecessors, (33), 1 states have return successors, (33), 33 states have call predecessors, (33), 33 states have call successors, (33) [2022-10-15 20:10:40,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 664 states to 664 states and 946 transitions. [2022-10-15 20:10:40,027 INFO L78 Accepts]: Start accepts. Automaton has 664 states and 946 transitions. Word has length 48 [2022-10-15 20:10:40,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:40,029 INFO L495 AbstractCegarLoop]: Abstraction has 664 states and 946 transitions. [2022-10-15 20:10:40,030 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 35 states have (on average 2.657142857142857) internal successors, (93), 35 states have internal predecessors, (93), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:40,030 INFO L276 IsEmpty]: Start isEmpty. Operand 664 states and 946 transitions. [2022-10-15 20:10:40,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2022-10-15 20:10:40,037 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:40,037 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:40,070 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:10:40,250 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:40,251 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:40,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:40,252 INFO L85 PathProgramCache]: Analyzing trace with hash 730834903, now seen corresponding path program 2 times [2022-10-15 20:10:40,252 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:40,253 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [124884196] [2022-10-15 20:10:40,253 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:40,253 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:40,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:40,475 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-10-15 20:10:40,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:40,476 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [124884196] [2022-10-15 20:10:40,476 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [124884196] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:40,476 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:40,477 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:10:40,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1067225560] [2022-10-15 20:10:40,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:40,478 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:40,478 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:40,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:40,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:40,480 INFO L87 Difference]: Start difference. First operand 664 states and 946 transitions. Second operand has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:40,604 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:40,604 INFO L93 Difference]: Finished difference Result 1237 states and 1784 transitions. [2022-10-15 20:10:40,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:40,605 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2022-10-15 20:10:40,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:40,610 INFO L225 Difference]: With dead ends: 1237 [2022-10-15 20:10:40,610 INFO L226 Difference]: Without dead ends: 652 [2022-10-15 20:10:40,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 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 20:10:40,613 INFO L413 NwaCegarLoop]: 69 mSDtfsCounter, 19 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 140 SdHoareTripleChecker+Invalid, 50 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:40,613 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 140 Invalid, 50 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:40,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 652 states. [2022-10-15 20:10:40,684 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 652 to 650. [2022-10-15 20:10:40,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 650 states, 602 states have (on average 1.4252491694352158) internal successors, (858), 616 states have internal predecessors, (858), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-15 20:10:40,690 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 650 states to 650 states and 922 transitions. [2022-10-15 20:10:40,691 INFO L78 Accepts]: Start accepts. Automaton has 650 states and 922 transitions. Word has length 84 [2022-10-15 20:10:40,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:40,691 INFO L495 AbstractCegarLoop]: Abstraction has 650 states and 922 transitions. [2022-10-15 20:10:40,691 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 6.0) internal successors, (24), 4 states have internal predecessors, (24), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:40,692 INFO L276 IsEmpty]: Start isEmpty. Operand 650 states and 922 transitions. [2022-10-15 20:10:40,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2022-10-15 20:10:40,693 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:40,693 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:40,693 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-15 20:10:40,694 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:40,694 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:40,695 INFO L85 PathProgramCache]: Analyzing trace with hash 1890336486, now seen corresponding path program 1 times [2022-10-15 20:10:40,695 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:40,695 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1101325611] [2022-10-15 20:10:40,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:40,695 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:40,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 20:10:40,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:40,843 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 441 trivial. 0 not checked. [2022-10-15 20:10:40,843 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:40,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1101325611] [2022-10-15 20:10:40,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1101325611] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:40,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:40,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:40,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1619001590] [2022-10-15 20:10:40,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:40,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:40,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:40,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:40,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:40,846 INFO L87 Difference]: Start difference. First operand 650 states and 922 transitions. Second operand has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:10:40,949 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:40,950 INFO L93 Difference]: Finished difference Result 819 states and 1177 transitions. [2022-10-15 20:10:40,951 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:40,951 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 90 [2022-10-15 20:10:40,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:40,957 INFO L225 Difference]: With dead ends: 819 [2022-10-15 20:10:40,958 INFO L226 Difference]: Without dead ends: 817 [2022-10-15 20:10:40,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:40,960 INFO L413 NwaCegarLoop]: 70 mSDtfsCounter, 38 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 40 SdHoareTripleChecker+Valid, 179 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:40,961 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [40 Valid, 179 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:40,963 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 817 states. [2022-10-15 20:10:41,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 817 to 648. [2022-10-15 20:10:41,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 648 states, 602 states have (on average 1.3970099667774087) internal successors, (841), 614 states have internal predecessors, (841), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2022-10-15 20:10:41,017 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 648 states to 648 states and 905 transitions. [2022-10-15 20:10:41,017 INFO L78 Accepts]: Start accepts. Automaton has 648 states and 905 transitions. Word has length 90 [2022-10-15 20:10:41,018 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:41,018 INFO L495 AbstractCegarLoop]: Abstraction has 648 states and 905 transitions. [2022-10-15 20:10:41,018 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.333333333333334) internal successors, (28), 4 states have internal predecessors, (28), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:10:41,018 INFO L276 IsEmpty]: Start isEmpty. Operand 648 states and 905 transitions. [2022-10-15 20:10:41,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2022-10-15 20:10:41,020 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:41,020 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:41,020 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-15 20:10:41,021 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:41,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:41,021 INFO L85 PathProgramCache]: Analyzing trace with hash -1529110927, now seen corresponding path program 1 times [2022-10-15 20:10:41,022 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:41,022 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215969607] [2022-10-15 20:10:41,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:41,022 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:41,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:41,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2022-10-15 20:10:41,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:41,262 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-15 20:10:41,262 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:41,262 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215969607] [2022-10-15 20:10:41,263 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215969607] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:41,263 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [526497343] [2022-10-15 20:10:41,263 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:41,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:41,263 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:41,264 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:10:41,289 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:10:41,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:41,377 INFO L263 TraceCheckSpWp]: Trace formula consists of 300 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-15 20:10:41,382 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:41,984 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:10:41,985 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:43,128 INFO L134 CoverageAnalysis]: Checked inductivity of 441 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:10:43,129 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [526497343] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:43,129 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:43,129 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 33, 33] total 68 [2022-10-15 20:10:43,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [125407652] [2022-10-15 20:10:43,130 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:43,130 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 68 states [2022-10-15 20:10:43,131 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:43,132 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 68 interpolants. [2022-10-15 20:10:43,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1099, Invalid=3457, Unknown=0, NotChecked=0, Total=4556 [2022-10-15 20:10:43,136 INFO L87 Difference]: Start difference. First operand 648 states and 905 transitions. Second operand has 68 states, 68 states have (on average 2.485294117647059) internal successors, (169), 68 states have internal predecessors, (169), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:10:47,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:47,267 INFO L93 Difference]: Finished difference Result 2115 states and 2701 transitions. [2022-10-15 20:10:47,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 100 states. [2022-10-15 20:10:47,269 INFO L78 Accepts]: Start accepts. Automaton has has 68 states, 68 states have (on average 2.485294117647059) internal successors, (169), 68 states have internal predecessors, (169), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 91 [2022-10-15 20:10:47,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:47,280 INFO L225 Difference]: With dead ends: 2115 [2022-10-15 20:10:47,281 INFO L226 Difference]: Without dead ends: 1530 [2022-10-15 20:10:47,291 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 254 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 132 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4198 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=3909, Invalid=13913, Unknown=0, NotChecked=0, Total=17822 [2022-10-15 20:10:47,293 INFO L413 NwaCegarLoop]: 135 mSDtfsCounter, 3852 mSDsluCounter, 2199 mSDsCounter, 0 mSdLazyCounter, 1050 mSolverCounterSat, 316 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3915 SdHoareTripleChecker+Valid, 2334 SdHoareTripleChecker+Invalid, 1366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 316 IncrementalHoareTripleChecker+Valid, 1050 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:47,293 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3915 Valid, 2334 Invalid, 1366 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [316 Valid, 1050 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2022-10-15 20:10:47,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1530 states. [2022-10-15 20:10:47,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1530 to 1280. [2022-10-15 20:10:47,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1202 states have (on average 1.4009983361064893) internal successors, (1684), 1214 states have internal predecessors, (1684), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-10-15 20:10:47,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1812 transitions. [2022-10-15 20:10:47,398 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1812 transitions. Word has length 91 [2022-10-15 20:10:47,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:47,399 INFO L495 AbstractCegarLoop]: Abstraction has 1280 states and 1812 transitions. [2022-10-15 20:10:47,399 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 68 states, 68 states have (on average 2.485294117647059) internal successors, (169), 68 states have internal predecessors, (169), 1 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-15 20:10:47,399 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1812 transitions. [2022-10-15 20:10:47,401 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-10-15 20:10:47,401 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:47,402 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:47,445 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 20:10:47,615 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-15 20:10:47,616 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:47,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:47,618 INFO L85 PathProgramCache]: Analyzing trace with hash -318372874, now seen corresponding path program 2 times [2022-10-15 20:10:47,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:47,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1922138525] [2022-10-15 20:10:47,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:47,619 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:47,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:48,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-15 20:10:48,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:48,083 INFO L134 CoverageAnalysis]: Checked inductivity of 1906 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2022-10-15 20:10:48,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:48,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1922138525] [2022-10-15 20:10:48,084 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1922138525] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:48,084 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [689980840] [2022-10-15 20:10:48,084 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:10:48,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:48,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:48,091 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:10:48,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 20:10:48,196 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 1 check-sat command(s) [2022-10-15 20:10:48,196 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:10:48,198 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:10:48,209 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:48,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1906 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1906 trivial. 0 not checked. [2022-10-15 20:10:48,272 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:10:48,272 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [689980840] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:48,272 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:10:48,272 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [7] total 10 [2022-10-15 20:10:48,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1763218018] [2022-10-15 20:10:48,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:48,274 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-15 20:10:48,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:48,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-15 20:10:48,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2022-10-15 20:10:48,275 INFO L87 Difference]: Start difference. First operand 1280 states and 1812 transitions. Second operand has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:10:48,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:48,455 INFO L93 Difference]: Finished difference Result 1280 states and 1812 transitions. [2022-10-15 20:10:48,456 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 20:10:48,456 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 159 [2022-10-15 20:10:48,457 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:48,465 INFO L225 Difference]: With dead ends: 1280 [2022-10-15 20:10:48,465 INFO L226 Difference]: Without dead ends: 1279 [2022-10-15 20:10:48,467 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 169 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2022-10-15 20:10:48,468 INFO L413 NwaCegarLoop]: 64 mSDtfsCounter, 67 mSDsluCounter, 109 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 69 SdHoareTripleChecker+Valid, 173 SdHoareTripleChecker+Invalid, 90 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:48,468 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [69 Valid, 173 Invalid, 90 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:10:48,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2022-10-15 20:10:48,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1279. [2022-10-15 20:10:48,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1202 states have (on average 1.3743760399334441) internal successors, (1652), 1213 states have internal predecessors, (1652), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-10-15 20:10:48,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1780 transitions. [2022-10-15 20:10:48,586 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1780 transitions. Word has length 159 [2022-10-15 20:10:48,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:48,587 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1780 transitions. [2022-10-15 20:10:48,587 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 7.25) internal successors, (29), 5 states have internal predecessors, (29), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:10:48,588 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1780 transitions. [2022-10-15 20:10:48,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2022-10-15 20:10:48,593 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:48,594 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:48,643 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 20:10:48,809 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-15 20:10:48,809 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:48,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:48,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1079687089, now seen corresponding path program 1 times [2022-10-15 20:10:48,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:48,811 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [373188896] [2022-10-15 20:10:48,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:48,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:49,078 INFO L134 CoverageAnalysis]: Checked inductivity of 1922 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 1906 trivial. 0 not checked. [2022-10-15 20:10:49,078 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:49,079 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [373188896] [2022-10-15 20:10:49,079 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [373188896] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:49,079 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:49,079 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-15 20:10:49,079 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094987739] [2022-10-15 20:10:49,080 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:49,080 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:49,080 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:49,081 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:49,081 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:49,081 INFO L87 Difference]: Start difference. First operand 1279 states and 1780 transitions. Second operand has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:49,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:49,262 INFO L93 Difference]: Finished difference Result 2409 states and 3405 transitions. [2022-10-15 20:10:49,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:49,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 159 [2022-10-15 20:10:49,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:49,272 INFO L225 Difference]: With dead ends: 2409 [2022-10-15 20:10:49,272 INFO L226 Difference]: Without dead ends: 1285 [2022-10-15 20:10:49,280 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 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 20:10:49,281 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 19 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 74 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 74 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:49,281 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 164 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 74 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:10:49,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1285 states. [2022-10-15 20:10:49,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1285 to 1280. [2022-10-15 20:10:49,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1280 states, 1203 states have (on average 1.374064837905237) internal successors, (1653), 1214 states have internal predecessors, (1653), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-10-15 20:10:49,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1280 states to 1280 states and 1781 transitions. [2022-10-15 20:10:49,387 INFO L78 Accepts]: Start accepts. Automaton has 1280 states and 1781 transitions. Word has length 159 [2022-10-15 20:10:49,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:49,388 INFO L495 AbstractCegarLoop]: Abstraction has 1280 states and 1781 transitions. [2022-10-15 20:10:49,388 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.75) internal successors, (31), 4 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:10:49,389 INFO L276 IsEmpty]: Start isEmpty. Operand 1280 states and 1781 transitions. [2022-10-15 20:10:49,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2022-10-15 20:10:49,391 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:49,391 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 4, 4, 4, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:49,391 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2022-10-15 20:10:49,391 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:49,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:49,392 INFO L85 PathProgramCache]: Analyzing trace with hash 1061394857, now seen corresponding path program 1 times [2022-10-15 20:10:49,392 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:49,392 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572378451] [2022-10-15 20:10:49,392 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:49,393 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:49,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-15 20:10:49,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:49,623 INFO L134 CoverageAnalysis]: Checked inductivity of 1923 backedges. 15 proven. 0 refuted. 0 times theorem prover too weak. 1908 trivial. 0 not checked. [2022-10-15 20:10:49,623 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:49,623 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572378451] [2022-10-15 20:10:49,624 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572378451] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:49,624 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:49,624 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:49,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395447801] [2022-10-15 20:10:49,625 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:49,625 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:49,626 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:49,626 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:49,626 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:49,627 INFO L87 Difference]: Start difference. First operand 1280 states and 1781 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:10:49,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:49,808 INFO L93 Difference]: Finished difference Result 1280 states and 1781 transitions. [2022-10-15 20:10:49,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-15 20:10:49,809 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 169 [2022-10-15 20:10:49,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:49,817 INFO L225 Difference]: With dead ends: 1280 [2022-10-15 20:10:49,818 INFO L226 Difference]: Without dead ends: 1279 [2022-10-15 20:10:49,819 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:49,820 INFO L413 NwaCegarLoop]: 60 mSDtfsCounter, 89 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 90 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:49,821 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [90 Valid, 99 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:49,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1279 states. [2022-10-15 20:10:49,939 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1279 to 1279. [2022-10-15 20:10:49,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1279 states, 1203 states have (on average 1.3474646716541978) internal successors, (1621), 1213 states have internal predecessors, (1621), 64 states have call successors, (64), 1 states have call predecessors, (64), 1 states have return successors, (64), 64 states have call predecessors, (64), 64 states have call successors, (64) [2022-10-15 20:10:49,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1279 states to 1279 states and 1749 transitions. [2022-10-15 20:10:49,951 INFO L78 Accepts]: Start accepts. Automaton has 1279 states and 1749 transitions. Word has length 169 [2022-10-15 20:10:49,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:49,952 INFO L495 AbstractCegarLoop]: Abstraction has 1279 states and 1749 transitions. [2022-10-15 20:10:49,952 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:10:49,952 INFO L276 IsEmpty]: Start isEmpty. Operand 1279 states and 1749 transitions. [2022-10-15 20:10:49,954 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2022-10-15 20:10:49,955 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:49,955 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:49,955 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-15 20:10:49,955 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:49,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:49,956 INFO L85 PathProgramCache]: Analyzing trace with hash -1632075482, now seen corresponding path program 1 times [2022-10-15 20:10:49,956 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:49,956 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [632363643] [2022-10-15 20:10:49,956 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:49,957 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:50,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-15 20:10:50,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:50,248 INFO L134 CoverageAnalysis]: Checked inductivity of 1949 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2022-10-15 20:10:50,249 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:50,249 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [632363643] [2022-10-15 20:10:50,249 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [632363643] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:10:50,250 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:10:50,250 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:10:50,250 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561969659] [2022-10-15 20:10:50,250 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:10:50,251 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:10:50,251 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:50,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:10:50,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:10:50,252 INFO L87 Difference]: Start difference. First operand 1279 states and 1749 transitions. Second operand has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:10:50,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:10:50,418 INFO L93 Difference]: Finished difference Result 1637 states and 2291 transitions. [2022-10-15 20:10:50,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:10:50,418 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 182 [2022-10-15 20:10:50,419 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:10:50,428 INFO L225 Difference]: With dead ends: 1637 [2022-10-15 20:10:50,429 INFO L226 Difference]: Without dead ends: 1635 [2022-10-15 20:10:50,430 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:10:50,431 INFO L413 NwaCegarLoop]: 66 mSDtfsCounter, 27 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 182 SdHoareTripleChecker+Invalid, 53 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:10:50,432 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 182 Invalid, 53 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:10:50,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1635 states. [2022-10-15 20:10:50,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1635 to 1558. [2022-10-15 20:10:50,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1558 states, 1451 states have (on average 1.352170916609235) internal successors, (1962), 1461 states have internal predecessors, (1962), 95 states have call successors, (95), 1 states have call predecessors, (95), 1 states have return successors, (95), 95 states have call predecessors, (95), 95 states have call successors, (95) [2022-10-15 20:10:50,611 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1558 states to 1558 states and 2152 transitions. [2022-10-15 20:10:50,611 INFO L78 Accepts]: Start accepts. Automaton has 1558 states and 2152 transitions. Word has length 182 [2022-10-15 20:10:50,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:10:50,612 INFO L495 AbstractCegarLoop]: Abstraction has 1558 states and 2152 transitions. [2022-10-15 20:10:50,612 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 13.0) internal successors, (39), 4 states have internal predecessors, (39), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-15 20:10:50,612 INFO L276 IsEmpty]: Start isEmpty. Operand 1558 states and 2152 transitions. [2022-10-15 20:10:50,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2022-10-15 20:10:50,615 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:10:50,615 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:10:50,616 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2022-10-15 20:10:50,616 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2022-10-15 20:10:50,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:10:50,617 INFO L85 PathProgramCache]: Analyzing trace with hash -2130767332, now seen corresponding path program 1 times [2022-10-15 20:10:50,618 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:10:50,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1073335713] [2022-10-15 20:10:50,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:50,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:10:50,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:51,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2022-10-15 20:10:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:51,049 INFO L134 CoverageAnalysis]: Checked inductivity of 1952 backedges. 2 proven. 2 refuted. 0 times theorem prover too weak. 1948 trivial. 0 not checked. [2022-10-15 20:10:51,050 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:10:51,050 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1073335713] [2022-10-15 20:10:51,050 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1073335713] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:10:51,051 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15292388] [2022-10-15 20:10:51,051 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:10:51,051 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:10:51,051 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:10:51,052 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:10:51,075 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-15 20:10:51,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:10:51,278 INFO L263 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-15 20:10:51,283 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:10:53,061 INFO L134 CoverageAnalysis]: Checked inductivity of 1952 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-15 20:10:53,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:10:57,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1952 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 61 trivial. 0 not checked. [2022-10-15 20:10:57,276 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15292388] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:10:57,277 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:10:57,277 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 65, 65] total 131 [2022-10-15 20:10:57,277 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559329784] [2022-10-15 20:10:57,277 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:10:57,280 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 131 states [2022-10-15 20:10:57,281 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:10:57,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 131 interpolants. [2022-10-15 20:10:57,288 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4167, Invalid=12863, Unknown=0, NotChecked=0, Total=17030 [2022-10-15 20:10:57,289 INFO L87 Difference]: Start difference. First operand 1558 states and 2152 transitions. Second operand has 131 states, 131 states have (on average 2.49618320610687) internal successors, (327), 131 states have internal predecessors, (327), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3)