/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/loops-crafted-1/mono-crafted_3.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 14:43:59,381 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 14:43:59,384 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 14:43:59,417 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 14:43:59,481 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 14:43:59,482 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 14:43:59,483 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 14:43:59,484 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 14:43:59,514 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 14:43:59,514 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 14:43:59,515 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 14:43:59,515 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 14:43:59,516 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 14:43:59,516 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 14:43:59,517 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 14:43:59,517 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 14:43:59,517 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 14:43:59,518 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 14:43:59,518 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 14:43:59,518 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 14:43:59,518 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 14:43:59,519 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 14:43:59,519 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 14:43:59,519 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 14:43:59,519 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 14:43:59,519 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 14:43:59,520 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 14:43:59,520 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 14:43:59,520 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 14:43:59,520 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 14:43:59,520 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 14:43:59,521 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 14:43:59,521 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 14:43:59,521 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 14:43:59,521 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:43:59,522 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 14:43:59,522 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 14:43:59,522 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 14:43:59,522 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 14:43:59,523 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 14:43:59,523 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 14:43:59,523 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 14:43:59,880 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 14:43:59,907 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 14:43:59,910 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 14:43:59,912 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 14:43:59,912 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 14:43:59,914 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops-crafted-1/mono-crafted_3.c [2022-10-16 14:44:00,005 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b05eaaf7c/773482486fab48fc86d63293731d68ff/FLAGd11c64005 [2022-10-16 14:44:00,602 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 14:44:00,603 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops-crafted-1/mono-crafted_3.c [2022-10-16 14:44:00,610 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b05eaaf7c/773482486fab48fc86d63293731d68ff/FLAGd11c64005 [2022-10-16 14:44:00,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b05eaaf7c/773482486fab48fc86d63293731d68ff [2022-10-16 14:44:00,629 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 14:44:00,635 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 14:44:00,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 14:44:00,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 14:44:00,641 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 14:44:00,642 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,643 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@48293c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00, skipping insertion in model container [2022-10-16 14:44:00,644 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,652 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 14:44:00,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 14:44:00,844 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/loops-crafted-1/mono-crafted_3.c[318,331] [2022-10-16 14:44:00,862 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:44:00,872 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 14:44:00,886 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/loops-crafted-1/mono-crafted_3.c[318,331] [2022-10-16 14:44:00,891 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 14:44:00,908 INFO L208 MainTranslator]: Completed translation [2022-10-16 14:44:00,908 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00 WrapperNode [2022-10-16 14:44:00,909 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 14:44:00,910 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 14:44:00,910 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 14:44:00,910 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 14:44:00,921 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,928 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,954 INFO L138 Inliner]: procedures = 12, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 59 [2022-10-16 14:44:00,955 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 14:44:00,956 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 14:44:00,956 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 14:44:00,956 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 14:44:00,966 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,968 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,968 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,972 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,977 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,978 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 14:44:00,981 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 14:44:00,981 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 14:44:00,982 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 14:44:00,983 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (1/1) ... [2022-10-16 14:44:00,993 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 14:44:01,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:01,031 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 14:44:01,053 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 14:44:01,097 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 14:44:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 14:44:01,098 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 14:44:01,098 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 14:44:01,195 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 14:44:01,197 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 14:44:01,422 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 14:44:01,429 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 14:44:01,429 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 14:44:01,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:01 BoogieIcfgContainer [2022-10-16 14:44:01,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 14:44:01,434 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 14:44:01,434 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 14:44:01,461 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 14:44:01,461 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 02:44:00" (1/3) ... [2022-10-16 14:44:01,462 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46dc294f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:44:01, skipping insertion in model container [2022-10-16 14:44:01,462 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 02:44:00" (2/3) ... [2022-10-16 14:44:01,464 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@46dc294f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 02:44:01, skipping insertion in model container [2022-10-16 14:44:01,464 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 02:44:01" (3/3) ... [2022-10-16 14:44:01,466 INFO L112 eAbstractionObserver]: Analyzing ICFG mono-crafted_3.c [2022-10-16 14:44:01,534 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 14:44:01,534 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-16 14:44:01,663 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 14:44:01,677 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;@1d1d317a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 14:44:01,677 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-16 14:44:01,694 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:01,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:44:01,711 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:01,712 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:44:01,713 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:01,723 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:01,724 INFO L85 PathProgramCache]: Analyzing trace with hash 28698663, now seen corresponding path program 1 times [2022-10-16 14:44:01,735 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:01,736 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1140447445] [2022-10-16 14:44:01,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:01,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:01,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:02,065 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:02,065 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:02,066 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1140447445] [2022-10-16 14:44:02,067 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1140447445] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:02,067 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:44:02,068 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:44:02,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [734539471] [2022-10-16 14:44:02,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:02,076 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:44:02,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:02,119 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:44:02,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:44:02,124 INFO L87 Difference]: Start difference. First operand has 36 states, 23 states have (on average 1.7826086956521738) internal successors, (41), 35 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:02,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:02,200 INFO L93 Difference]: Finished difference Result 76 states and 89 transitions. [2022-10-16 14:44:02,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:44:02,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 5 [2022-10-16 14:44:02,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:02,212 INFO L225 Difference]: With dead ends: 76 [2022-10-16 14:44:02,212 INFO L226 Difference]: Without dead ends: 35 [2022-10-16 14:44:02,216 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:44:02,220 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 5 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:02,222 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 64 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:02,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2022-10-16 14:44:02,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 31. [2022-10-16 14:44:02,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 19 states have (on average 1.736842105263158) internal successors, (33), 30 states have internal predecessors, (33), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:02,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 33 transitions. [2022-10-16 14:44:02,261 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 33 transitions. Word has length 5 [2022-10-16 14:44:02,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:02,261 INFO L495 AbstractCegarLoop]: Abstraction has 31 states and 33 transitions. [2022-10-16 14:44:02,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 3 states have internal predecessors, (5), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:02,262 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 33 transitions. [2022-10-16 14:44:02,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 14:44:02,262 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:02,263 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 14:44:02,263 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 14:44:02,263 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:02,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:02,264 INFO L85 PathProgramCache]: Analyzing trace with hash 28699753, now seen corresponding path program 1 times [2022-10-16 14:44:02,264 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:02,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1273425531] [2022-10-16 14:44:02,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:02,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:02,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:02,354 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:02,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:02,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1273425531] [2022-10-16 14:44:02,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1273425531] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:02,355 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:44:02,355 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:44:02,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [856501707] [2022-10-16 14:44:02,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:02,359 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:44:02,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:02,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:44:02,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:44:02,360 INFO L87 Difference]: Start difference. First operand 31 states and 33 transitions. 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) [2022-10-16 14:44:02,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:02,405 INFO L93 Difference]: Finished difference Result 35 states and 37 transitions. [2022-10-16 14:44:02,405 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:44:02,405 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 [2022-10-16 14:44:02,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:02,406 INFO L225 Difference]: With dead ends: 35 [2022-10-16 14:44:02,407 INFO L226 Difference]: Without dead ends: 33 [2022-10-16 14:44:02,407 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:44:02,409 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:02,410 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 73 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:02,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2022-10-16 14:44:02,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2022-10-16 14:44:02,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 33 states, 21 states have (on average 1.6666666666666667) internal successors, (35), 32 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:02,417 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 35 transitions. [2022-10-16 14:44:02,417 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 35 transitions. Word has length 5 [2022-10-16 14:44:02,417 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:02,418 INFO L495 AbstractCegarLoop]: Abstraction has 33 states and 35 transitions. [2022-10-16 14:44:02,418 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) [2022-10-16 14:44:02,418 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 35 transitions. [2022-10-16 14:44:02,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 14:44:02,419 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:02,419 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:02,419 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 14:44:02,419 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:02,420 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:02,420 INFO L85 PathProgramCache]: Analyzing trace with hash 582876386, now seen corresponding path program 1 times [2022-10-16 14:44:02,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:02,421 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1275214481] [2022-10-16 14:44:02,421 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:02,421 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:02,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:02,498 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:02,499 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:02,499 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1275214481] [2022-10-16 14:44:02,499 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1275214481] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:02,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346653154] [2022-10-16 14:44:02,500 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:02,500 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:02,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:02,505 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:44:02,510 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 14:44:02,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:02,557 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:44:02,564 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:02,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:02,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:44:02,658 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:02,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346653154] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:44:02,659 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:44:02,659 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 14:44:02,660 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2042745477] [2022-10-16 14:44:02,660 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:44:02,660 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 14:44:02,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:02,661 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 14:44:02,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:44:02,662 INFO L87 Difference]: Start difference. First operand 33 states and 35 transitions. Second operand has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 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) [2022-10-16 14:44:02,761 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:02,762 INFO L93 Difference]: Finished difference Result 65 states and 74 transitions. [2022-10-16 14:44:02,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2022-10-16 14:44:02,762 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 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 9 [2022-10-16 14:44:02,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:02,763 INFO L225 Difference]: With dead ends: 65 [2022-10-16 14:44:02,763 INFO L226 Difference]: Without dead ends: 38 [2022-10-16 14:44:02,764 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2022-10-16 14:44:02,766 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 96 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:02,767 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 120 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:02,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-16 14:44:02,772 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 35. [2022-10-16 14:44:02,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 24 states have (on average 1.5416666666666667) internal successors, (37), 34 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:02,774 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 37 transitions. [2022-10-16 14:44:02,774 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 37 transitions. Word has length 9 [2022-10-16 14:44:02,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:02,774 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 37 transitions. [2022-10-16 14:44:02,775 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.0) internal successors, (20), 10 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) [2022-10-16 14:44:02,775 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 37 transitions. [2022-10-16 14:44:02,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 14:44:02,776 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:02,776 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:44:02,812 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 14:44:02,989 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 [2022-10-16 14:44:02,990 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:02,991 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:02,992 INFO L85 PathProgramCache]: Analyzing trace with hash 889332620, now seen corresponding path program 1 times [2022-10-16 14:44:02,992 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:02,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1456400033] [2022-10-16 14:44:02,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:02,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:03,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:03,090 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:03,091 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:03,091 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1456400033] [2022-10-16 14:44:03,091 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1456400033] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:03,092 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1127773653] [2022-10-16 14:44:03,092 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:03,092 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:03,092 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:03,094 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:44:03,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 14:44:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:03,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 14:44:03,144 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:03,181 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:03,182 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:44:03,182 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1127773653] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:03,182 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:44:03,183 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 7 [2022-10-16 14:44:03,183 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1977210994] [2022-10-16 14:44:03,183 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:03,184 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 14:44:03,184 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:03,184 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 14:44:03,185 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 14:44:03,185 INFO L87 Difference]: Start difference. First operand 35 states and 37 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) [2022-10-16 14:44:03,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:03,244 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2022-10-16 14:44:03,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 14:44:03,245 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 [2022-10-16 14:44:03,245 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:03,246 INFO L225 Difference]: With dead ends: 45 [2022-10-16 14:44:03,246 INFO L226 Difference]: Without dead ends: 44 [2022-10-16 14:44:03,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2022-10-16 14:44:03,249 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 20 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 86 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:03,249 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 86 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:03,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2022-10-16 14:44:03,255 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 39. [2022-10-16 14:44:03,256 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 28 states have (on average 1.5) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:03,257 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-10-16 14:44:03,257 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 10 [2022-10-16 14:44:03,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:03,258 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-10-16 14:44:03,258 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) [2022-10-16 14:44:03,258 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-10-16 14:44:03,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2022-10-16 14:44:03,259 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:03,259 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1] [2022-10-16 14:44:03,289 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 14:44:03,475 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 [2022-10-16 14:44:03,476 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:03,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:03,478 INFO L85 PathProgramCache]: Analyzing trace with hash -1545125601, now seen corresponding path program 1 times [2022-10-16 14:44:03,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:03,479 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [859158404] [2022-10-16 14:44:03,479 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:03,479 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:03,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:03,559 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-16 14:44:03,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:03,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [859158404] [2022-10-16 14:44:03,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [859158404] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:03,560 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:44:03,560 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:44:03,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907226726] [2022-10-16 14:44:03,561 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:03,561 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:44:03,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:03,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:44:03,566 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:44:03,566 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:03,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:03,606 INFO L93 Difference]: Finished difference Result 39 states and 42 transitions. [2022-10-16 14:44:03,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:44:03,610 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 13 [2022-10-16 14:44:03,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:03,611 INFO L225 Difference]: With dead ends: 39 [2022-10-16 14:44:03,611 INFO L226 Difference]: Without dead ends: 38 [2022-10-16 14:44:03,612 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:44:03,615 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 8 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:03,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 61 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:03,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2022-10-16 14:44:03,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 38. [2022-10-16 14:44:03,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.4642857142857142) internal successors, (41), 37 states have internal predecessors, (41), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:03,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 41 transitions. [2022-10-16 14:44:03,631 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 41 transitions. Word has length 13 [2022-10-16 14:44:03,631 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:03,632 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 41 transitions. [2022-10-16 14:44:03,632 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:03,632 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 41 transitions. [2022-10-16 14:44:03,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2022-10-16 14:44:03,633 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:03,633 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:44:03,633 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 14:44:03,633 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:03,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:03,635 INFO L85 PathProgramCache]: Analyzing trace with hash -654253321, now seen corresponding path program 1 times [2022-10-16 14:44:03,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:03,636 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1645624880] [2022-10-16 14:44:03,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:03,636 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:03,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:03,724 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:44:03,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:03,725 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1645624880] [2022-10-16 14:44:03,725 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1645624880] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:03,725 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:44:03,725 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 14:44:03,725 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [672687859] [2022-10-16 14:44:03,726 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:03,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 14:44:03,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:03,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 14:44:03,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:44:03,727 INFO L87 Difference]: Start difference. First operand 38 states and 41 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:03,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:03,737 INFO L93 Difference]: Finished difference Result 38 states and 41 transitions. [2022-10-16 14:44:03,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 14:44:03,738 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 14 [2022-10-16 14:44:03,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:03,739 INFO L225 Difference]: With dead ends: 38 [2022-10-16 14:44:03,739 INFO L226 Difference]: Without dead ends: 37 [2022-10-16 14:44:03,739 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 14:44:03,741 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:03,741 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:03,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2022-10-16 14:44:03,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2022-10-16 14:44:03,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 28 states have (on average 1.4285714285714286) internal successors, (40), 36 states have internal predecessors, (40), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:03,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 40 transitions. [2022-10-16 14:44:03,751 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 40 transitions. Word has length 14 [2022-10-16 14:44:03,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:03,754 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 40 transitions. [2022-10-16 14:44:03,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:03,754 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 40 transitions. [2022-10-16 14:44:03,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2022-10-16 14:44:03,757 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:03,757 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:03,757 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 14:44:03,757 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:03,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:03,758 INFO L85 PathProgramCache]: Analyzing trace with hash 1192983585, now seen corresponding path program 1 times [2022-10-16 14:44:03,758 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:03,759 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267530322] [2022-10-16 14:44:03,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:03,759 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:03,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:03,809 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:44:03,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:03,809 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267530322] [2022-10-16 14:44:03,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267530322] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:03,810 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:44:03,810 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:44:03,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702842750] [2022-10-16 14:44:03,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:03,811 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:44:03,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:03,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:44:03,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:44:03,812 INFO L87 Difference]: Start difference. First operand 37 states and 40 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-10-16 14:44:03,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:03,836 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-10-16 14:44:03,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:44:03,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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 15 [2022-10-16 14:44:03,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:03,838 INFO L225 Difference]: With dead ends: 43 [2022-10-16 14:44:03,838 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 14:44:03,839 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:44:03,840 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 5 mSDsluCounter, 42 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 66 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 15 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:03,841 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 66 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:03,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 14:44:03,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 40. [2022-10-16 14:44:03,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 40 states, 31 states have (on average 1.3870967741935485) internal successors, (43), 39 states have internal predecessors, (43), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:03,862 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 43 transitions. [2022-10-16 14:44:03,863 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 43 transitions. Word has length 15 [2022-10-16 14:44:03,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:03,863 INFO L495 AbstractCegarLoop]: Abstraction has 40 states and 43 transitions. [2022-10-16 14:44:03,863 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 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) [2022-10-16 14:44:03,863 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 43 transitions. [2022-10-16 14:44:03,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2022-10-16 14:44:03,864 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:03,864 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:03,864 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 14:44:03,865 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:03,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:03,865 INFO L85 PathProgramCache]: Analyzing trace with hash -1672214471, now seen corresponding path program 1 times [2022-10-16 14:44:03,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:03,866 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1136976091] [2022-10-16 14:44:03,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:03,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:03,943 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-10-16 14:44:03,943 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:03,943 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1136976091] [2022-10-16 14:44:03,943 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1136976091] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:03,944 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:44:03,944 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:44:03,944 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1835330601] [2022-10-16 14:44:03,944 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:03,945 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:44:03,945 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:03,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:44:03,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:44:03,946 INFO L87 Difference]: Start difference. First operand 40 states and 43 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:03,981 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:03,981 INFO L93 Difference]: Finished difference Result 52 states and 56 transitions. [2022-10-16 14:44:03,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:44:03,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 16 [2022-10-16 14:44:03,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:03,983 INFO L225 Difference]: With dead ends: 52 [2022-10-16 14:44:03,983 INFO L226 Difference]: Without dead ends: 50 [2022-10-16 14:44:03,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:44:03,984 INFO L413 NwaCegarLoop]: 19 mSDtfsCounter, 17 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 46 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:03,985 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 46 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:03,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-16 14:44:03,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 46. [2022-10-16 14:44:03,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 38 states have (on average 1.4210526315789473) internal successors, (54), 45 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:03,999 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 54 transitions. [2022-10-16 14:44:03,999 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 54 transitions. Word has length 16 [2022-10-16 14:44:03,999 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:04,005 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 54 transitions. [2022-10-16 14:44:04,005 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:04,005 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 54 transitions. [2022-10-16 14:44:04,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 14:44:04,006 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:04,006 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:04,006 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-10-16 14:44:04,007 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:04,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:04,007 INFO L85 PathProgramCache]: Analyzing trace with hash 384400464, now seen corresponding path program 1 times [2022-10-16 14:44:04,011 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:04,011 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931734083] [2022-10-16 14:44:04,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:04,012 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:04,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:04,169 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:04,170 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:04,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931734083] [2022-10-16 14:44:04,170 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931734083] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:04,170 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1812455293] [2022-10-16 14:44:04,170 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:04,171 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:04,171 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:04,182 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:44:04,220 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 14:44:04,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:04,255 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 14:44:04,257 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:04,298 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:04,298 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:44:04,356 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:04,356 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1812455293] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:44:04,356 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:44:04,357 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7, 7] total 14 [2022-10-16 14:44:04,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528827664] [2022-10-16 14:44:04,357 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:44:04,358 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 14:44:04,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:04,358 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 14:44:04,358 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2022-10-16 14:44:04,359 INFO L87 Difference]: Start difference. First operand 46 states and 54 transitions. Second operand has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:04,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:04,457 INFO L93 Difference]: Finished difference Result 92 states and 110 transitions. [2022-10-16 14:44:04,457 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 14:44:04,457 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 19 [2022-10-16 14:44:04,458 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:04,458 INFO L225 Difference]: With dead ends: 92 [2022-10-16 14:44:04,459 INFO L226 Difference]: Without dead ends: 58 [2022-10-16 14:44:04,459 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=107, Invalid=235, Unknown=0, NotChecked=0, Total=342 [2022-10-16 14:44:04,460 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 19 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 55 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:04,461 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 100 Invalid, 55 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:04,462 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58 states. [2022-10-16 14:44:04,467 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58 to 58. [2022-10-16 14:44:04,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 58 states, 50 states have (on average 1.32) internal successors, (66), 57 states have internal predecessors, (66), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:04,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 58 states to 58 states and 66 transitions. [2022-10-16 14:44:04,469 INFO L78 Accepts]: Start accepts. Automaton has 58 states and 66 transitions. Word has length 19 [2022-10-16 14:44:04,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:04,470 INFO L495 AbstractCegarLoop]: Abstraction has 58 states and 66 transitions. [2022-10-16 14:44:04,470 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.5) internal successors, (35), 14 states have internal predecessors, (35), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:04,470 INFO L276 IsEmpty]: Start isEmpty. Operand 58 states and 66 transitions. [2022-10-16 14:44:04,471 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2022-10-16 14:44:04,471 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:04,472 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:04,512 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 14:44:04,685 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:04,686 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:04,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:04,687 INFO L85 PathProgramCache]: Analyzing trace with hash 1222750273, now seen corresponding path program 2 times [2022-10-16 14:44:04,687 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:04,687 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819298389] [2022-10-16 14:44:04,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:04,688 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:04,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:04,896 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:04,896 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:04,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819298389] [2022-10-16 14:44:04,897 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819298389] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:04,897 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15962476] [2022-10-16 14:44:04,897 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:44:04,897 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:04,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:04,899 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:44:04,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 14:44:04,946 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:44:04,946 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:44:04,947 INFO L263 TraceCheckSpWp]: Trace formula consists of 90 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 14:44:04,950 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:05,020 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:05,021 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:44:05,221 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 6 proven. 50 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:05,221 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15962476] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:44:05,221 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:44:05,221 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 26 [2022-10-16 14:44:05,222 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [500702205] [2022-10-16 14:44:05,222 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:44:05,222 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-10-16 14:44:05,223 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:05,223 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-10-16 14:44:05,224 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2022-10-16 14:44:05,224 INFO L87 Difference]: Start difference. First operand 58 states and 66 transitions. Second operand has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 26 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:05,471 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:05,471 INFO L93 Difference]: Finished difference Result 116 states and 137 transitions. [2022-10-16 14:44:05,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 14:44:05,471 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 26 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 31 [2022-10-16 14:44:05,472 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:05,473 INFO L225 Difference]: With dead ends: 116 [2022-10-16 14:44:05,473 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 14:44:05,474 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=389, Invalid=943, Unknown=0, NotChecked=0, Total=1332 [2022-10-16 14:44:05,475 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 47 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 47 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 119 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:05,476 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [47 Valid, 221 Invalid, 119 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:44:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 14:44:05,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-10-16 14:44:05,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 74 states have (on average 1.2162162162162162) internal successors, (90), 81 states have internal predecessors, (90), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:05,486 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2022-10-16 14:44:05,487 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 31 [2022-10-16 14:44:05,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:05,487 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2022-10-16 14:44:05,487 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 26 states have internal predecessors, (59), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:05,488 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2022-10-16 14:44:05,489 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2022-10-16 14:44:05,489 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:05,489 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:05,527 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 14:44:05,704 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:05,705 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:05,706 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:05,706 INFO L85 PathProgramCache]: Analyzing trace with hash -985255005, now seen corresponding path program 3 times [2022-10-16 14:44:05,707 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:05,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137853391] [2022-10-16 14:44:05,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:05,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:06,378 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 12 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:06,378 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:06,378 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137853391] [2022-10-16 14:44:06,378 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1137853391] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:06,379 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1381058411] [2022-10-16 14:44:06,379 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:44:06,379 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:06,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:06,380 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:44:06,389 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 14:44:06,424 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:44:06,424 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:44:06,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:44:06,427 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:06,485 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 242 trivial. 0 not checked. [2022-10-16 14:44:06,485 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:44:06,485 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1381058411] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:06,485 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:44:06,485 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [25] total 28 [2022-10-16 14:44:06,489 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1384032572] [2022-10-16 14:44:06,489 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:06,491 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 14:44:06,491 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:06,491 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 14:44:06,492 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=186, Invalid=570, Unknown=0, NotChecked=0, Total=756 [2022-10-16 14:44:06,492 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2022-10-16 14:44:06,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:06,550 INFO L93 Difference]: Finished difference Result 82 states and 90 transitions. [2022-10-16 14:44:06,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 14:44:06,551 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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 55 [2022-10-16 14:44:06,551 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:06,552 INFO L225 Difference]: With dead ends: 82 [2022-10-16 14:44:06,552 INFO L226 Difference]: Without dead ends: 81 [2022-10-16 14:44:06,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 164 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=194, Invalid=676, Unknown=0, NotChecked=0, Total=870 [2022-10-16 14:44:06,554 INFO L413 NwaCegarLoop]: 17 mSDtfsCounter, 20 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 49 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:06,554 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 49 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:06,555 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-10-16 14:44:06,562 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-10-16 14:44:06,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.1891891891891893) internal successors, (88), 80 states have internal predecessors, (88), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:06,564 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 88 transitions. [2022-10-16 14:44:06,564 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 88 transitions. Word has length 55 [2022-10-16 14:44:06,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:06,564 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 88 transitions. [2022-10-16 14:44:06,565 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.5) internal successors, (14), 5 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) [2022-10-16 14:44:06,565 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 88 transitions. [2022-10-16 14:44:06,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 14:44:06,566 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:06,566 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:06,601 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 14:44:06,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 14:44:06,783 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:06,784 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:06,784 INFO L85 PathProgramCache]: Analyzing trace with hash -478134009, now seen corresponding path program 1 times [2022-10-16 14:44:06,784 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:06,785 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1577432562] [2022-10-16 14:44:06,785 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:06,785 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:06,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:06,843 INFO L134 CoverageAnalysis]: Checked inductivity of 254 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2022-10-16 14:44:06,844 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:06,844 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1577432562] [2022-10-16 14:44:06,844 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1577432562] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:06,844 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:44:06,844 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:44:06,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7584603] [2022-10-16 14:44:06,845 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:06,845 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:44:06,845 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:06,846 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:44:06,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:44:06,846 INFO L87 Difference]: Start difference. First operand 81 states and 88 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) [2022-10-16 14:44:06,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:06,864 INFO L93 Difference]: Finished difference Result 82 states and 88 transitions. [2022-10-16 14:44:06,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:44:06,865 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 56 [2022-10-16 14:44:06,867 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:06,868 INFO L225 Difference]: With dead ends: 82 [2022-10-16 14:44:06,868 INFO L226 Difference]: Without dead ends: 81 [2022-10-16 14:44:06,868 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:44:06,869 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 2 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:06,870 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 61 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:06,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2022-10-16 14:44:06,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2022-10-16 14:44:06,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 74 states have (on average 1.1756756756756757) internal successors, (87), 80 states have internal predecessors, (87), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:06,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 87 transitions. [2022-10-16 14:44:06,886 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 87 transitions. Word has length 56 [2022-10-16 14:44:06,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:06,886 INFO L495 AbstractCegarLoop]: Abstraction has 81 states and 87 transitions. [2022-10-16 14:44:06,886 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) [2022-10-16 14:44:06,887 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 87 transitions. [2022-10-16 14:44:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2022-10-16 14:44:06,888 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:06,889 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:06,889 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 14:44:06,889 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:06,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:06,890 INFO L85 PathProgramCache]: Analyzing trace with hash -478100245, now seen corresponding path program 1 times [2022-10-16 14:44:06,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:06,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [937879135] [2022-10-16 14:44:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:06,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:06,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 46 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:07,389 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:07,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [937879135] [2022-10-16 14:44:07,389 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [937879135] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:07,389 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2047834643] [2022-10-16 14:44:07,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:07,390 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:07,390 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:07,391 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:44:07,400 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 14:44:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:07,451 INFO L263 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 14:44:07,455 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:07,557 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 46 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:07,557 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:44:08,153 INFO L134 CoverageAnalysis]: Checked inductivity of 288 backedges. 46 proven. 242 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:08,154 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2047834643] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:44:08,154 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:44:08,154 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 50 [2022-10-16 14:44:08,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2067165721] [2022-10-16 14:44:08,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:44:08,155 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-10-16 14:44:08,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:08,156 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-10-16 14:44:08,157 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=650, Invalid=1800, Unknown=0, NotChecked=0, Total=2450 [2022-10-16 14:44:08,157 INFO L87 Difference]: Start difference. First operand 81 states and 87 transitions. Second operand has 50 states, 50 states have (on average 2.16) internal successors, (108), 50 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:08,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:08,737 INFO L93 Difference]: Finished difference Result 162 states and 185 transitions. [2022-10-16 14:44:08,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-16 14:44:08,737 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 2.16) internal successors, (108), 50 states have internal predecessors, (108), 0 states have call successors, (0), 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 56 [2022-10-16 14:44:08,738 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:08,738 INFO L225 Difference]: With dead ends: 162 [2022-10-16 14:44:08,738 INFO L226 Difference]: Without dead ends: 129 [2022-10-16 14:44:08,742 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 71 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1140 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=1493, Invalid=3763, Unknown=0, NotChecked=0, Total=5256 [2022-10-16 14:44:08,742 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 155 mSDsluCounter, 152 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 155 SdHoareTripleChecker+Valid, 174 SdHoareTripleChecker+Invalid, 182 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:08,743 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [155 Valid, 174 Invalid, 182 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 14:44:08,744 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-16 14:44:08,752 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2022-10-16 14:44:08,753 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 129 states, 122 states have (on average 1.1065573770491803) internal successors, (135), 128 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:08,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 135 transitions. [2022-10-16 14:44:08,753 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 135 transitions. Word has length 56 [2022-10-16 14:44:08,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:08,754 INFO L495 AbstractCegarLoop]: Abstraction has 129 states and 135 transitions. [2022-10-16 14:44:08,754 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.16) internal successors, (108), 50 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:08,754 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 135 transitions. [2022-10-16 14:44:08,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 105 [2022-10-16 14:44:08,756 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:08,756 INFO L195 NwaCegarLoop]: trace histogram [25, 24, 24, 23, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:08,793 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 14:44:08,969 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:08,970 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:08,971 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:08,971 INFO L85 PathProgramCache]: Analyzing trace with hash -2056853337, now seen corresponding path program 2 times [2022-10-16 14:44:08,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:08,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190109207] [2022-10-16 14:44:08,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:08,972 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:09,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:10,465 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 94 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:10,465 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:10,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190109207] [2022-10-16 14:44:10,465 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190109207] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:10,465 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1608291320] [2022-10-16 14:44:10,466 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:44:10,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:10,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:10,467 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:44:10,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 14:44:10,539 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:44:10,539 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:44:10,541 INFO L263 TraceCheckSpWp]: Trace formula consists of 235 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-16 14:44:10,546 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 94 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:10,719 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:44:12,799 INFO L134 CoverageAnalysis]: Checked inductivity of 1152 backedges. 94 proven. 1058 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:12,800 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1608291320] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:44:12,800 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:44:12,800 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 98 [2022-10-16 14:44:12,800 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [831011177] [2022-10-16 14:44:12,801 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:44:12,801 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-10-16 14:44:12,802 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:12,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-10-16 14:44:12,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2450, Invalid=7056, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 14:44:12,810 INFO L87 Difference]: Start difference. First operand 129 states and 135 transitions. Second operand has 98 states, 98 states have (on average 2.0816326530612246) internal successors, (204), 98 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:14,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:14,690 INFO L93 Difference]: Finished difference Result 258 states and 293 transitions. [2022-10-16 14:44:14,690 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-10-16 14:44:14,690 INFO L78 Accepts]: Start accepts. Automaton has has 98 states, 98 states have (on average 2.0816326530612246) internal successors, (204), 98 states have internal predecessors, (204), 0 states have call successors, (0), 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 104 [2022-10-16 14:44:14,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:14,691 INFO L225 Difference]: With dead ends: 258 [2022-10-16 14:44:14,691 INFO L226 Difference]: Without dead ends: 225 [2022-10-16 14:44:14,697 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 302 GetRequests, 159 SyntacticMatches, 0 SemanticMatches, 143 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4596 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=5861, Invalid=15019, Unknown=0, NotChecked=0, Total=20880 [2022-10-16 14:44:14,698 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 353 mSDsluCounter, 125 mSDsCounter, 0 mSdLazyCounter, 313 mSolverCounterSat, 34 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 353 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 34 IncrementalHoareTripleChecker+Valid, 313 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:14,698 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [353 Valid, 147 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [34 Valid, 313 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 14:44:14,699 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225 states. [2022-10-16 14:44:14,709 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225 to 225. [2022-10-16 14:44:14,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 225 states, 218 states have (on average 1.0596330275229358) internal successors, (231), 224 states have internal predecessors, (231), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:14,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 225 states to 225 states and 231 transitions. [2022-10-16 14:44:14,711 INFO L78 Accepts]: Start accepts. Automaton has 225 states and 231 transitions. Word has length 104 [2022-10-16 14:44:14,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:14,712 INFO L495 AbstractCegarLoop]: Abstraction has 225 states and 231 transitions. [2022-10-16 14:44:14,712 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 2.0816326530612246) internal successors, (204), 98 states have internal predecessors, (204), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:14,712 INFO L276 IsEmpty]: Start isEmpty. Operand 225 states and 231 transitions. [2022-10-16 14:44:14,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2022-10-16 14:44:14,715 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:14,716 INFO L195 NwaCegarLoop]: trace histogram [49, 48, 48, 47, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:14,751 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 14:44:14,930 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:14,931 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:14,932 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:14,932 INFO L85 PathProgramCache]: Analyzing trace with hash 1827960863, now seen corresponding path program 3 times [2022-10-16 14:44:14,933 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:14,933 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217298065] [2022-10-16 14:44:14,933 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:14,934 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:15,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:20,659 INFO L134 CoverageAnalysis]: Checked inductivity of 4608 backedges. 190 proven. 4418 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 14:44:20,659 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:20,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217298065] [2022-10-16 14:44:20,659 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217298065] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:20,659 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1345189649] [2022-10-16 14:44:20,660 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 14:44:20,660 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:20,660 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:20,662 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:44:20,663 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 14:44:20,704 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 14:44:20,704 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:44:20,705 INFO L263 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 14:44:20,709 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:20,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4608 backedges. 190 proven. 0 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2022-10-16 14:44:20,819 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 14:44:20,819 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1345189649] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:20,819 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 14:44:20,819 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [97] total 99 [2022-10-16 14:44:20,819 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91471992] [2022-10-16 14:44:20,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:20,820 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:44:20,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:20,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:44:20,824 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2406, Invalid=7296, Unknown=0, NotChecked=0, Total=9702 [2022-10-16 14:44:20,824 INFO L87 Difference]: Start difference. First operand 225 states and 231 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) [2022-10-16 14:44:20,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:20,885 INFO L93 Difference]: Finished difference Result 225 states and 231 transitions. [2022-10-16 14:44:20,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:44:20,886 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 200 [2022-10-16 14:44:20,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:20,888 INFO L225 Difference]: With dead ends: 225 [2022-10-16 14:44:20,888 INFO L226 Difference]: Without dead ends: 224 [2022-10-16 14:44:20,892 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 199 SyntacticMatches, 0 SemanticMatches, 98 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2347 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=2410, Invalid=7490, Unknown=0, NotChecked=0, Total=9900 [2022-10-16 14:44:20,892 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 17 mSDsluCounter, 18 mSDsCounter, 0 mSdLazyCounter, 13 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 16 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 13 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:20,893 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 36 Invalid, 16 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 13 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:20,894 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-10-16 14:44:20,904 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-10-16 14:44:20,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 218 states have (on average 1.055045871559633) internal successors, (230), 223 states have internal predecessors, (230), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:20,905 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 230 transitions. [2022-10-16 14:44:20,905 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 230 transitions. Word has length 200 [2022-10-16 14:44:20,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:20,906 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 230 transitions. [2022-10-16 14:44:20,906 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) [2022-10-16 14:44:20,906 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 230 transitions. [2022-10-16 14:44:20,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-10-16 14:44:20,909 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:20,909 INFO L195 NwaCegarLoop]: trace histogram [48, 47, 47, 47, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:20,948 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 14:44:21,124 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 14:44:21,125 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:21,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:21,126 INFO L85 PathProgramCache]: Analyzing trace with hash 831165297, now seen corresponding path program 1 times [2022-10-16 14:44:21,127 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:21,127 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1343368170] [2022-10-16 14:44:21,128 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:21,128 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:21,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:21,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4466 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4466 trivial. 0 not checked. [2022-10-16 14:44:21,303 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:21,303 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1343368170] [2022-10-16 14:44:21,303 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1343368170] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 14:44:21,304 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 14:44:21,304 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 14:44:21,304 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1545171279] [2022-10-16 14:44:21,304 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 14:44:21,305 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 14:44:21,305 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:21,305 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 14:44:21,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 14:44:21,305 INFO L87 Difference]: Start difference. First operand 224 states and 230 transitions. Second operand has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:21,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:21,327 INFO L93 Difference]: Finished difference Result 226 states and 230 transitions. [2022-10-16 14:44:21,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 14:44:21,328 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 201 [2022-10-16 14:44:21,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:21,329 INFO L225 Difference]: With dead ends: 226 [2022-10-16 14:44:21,329 INFO L226 Difference]: Without dead ends: 224 [2022-10-16 14:44:21,330 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 14:44:21,331 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 4 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 12 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:21,331 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 52 Invalid, 12 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 14:44:21,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224 states. [2022-10-16 14:44:21,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224 to 224. [2022-10-16 14:44:21,344 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 224 states, 218 states have (on average 1.0458715596330275) internal successors, (228), 223 states have internal predecessors, (228), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:21,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 228 transitions. [2022-10-16 14:44:21,345 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 228 transitions. Word has length 201 [2022-10-16 14:44:21,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:21,345 INFO L495 AbstractCegarLoop]: Abstraction has 224 states and 228 transitions. [2022-10-16 14:44:21,345 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.333333333333333) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:21,346 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 228 transitions. [2022-10-16 14:44:21,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2022-10-16 14:44:21,348 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:21,348 INFO L195 NwaCegarLoop]: trace histogram [49, 47, 47, 47, 2, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 14:44:21,349 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2022-10-16 14:44:21,349 INFO L420 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:21,349 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:21,349 INFO L85 PathProgramCache]: Analyzing trace with hash 832396659, now seen corresponding path program 1 times [2022-10-16 14:44:21,350 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:21,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1562696824] [2022-10-16 14:44:21,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:21,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:21,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:21,539 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 4418 trivial. 0 not checked. [2022-10-16 14:44:21,539 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:44:21,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1562696824] [2022-10-16 14:44:21,540 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1562696824] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:44:21,540 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [418825888] [2022-10-16 14:44:21,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:21,540 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:44:21,540 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:44:21,541 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:44:21,565 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 14:44:21,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:44:21,643 INFO L263 TraceCheckSpWp]: Trace formula consists of 432 conjuncts, 96 conjunts are in the unsatisfiable core [2022-10-16 14:44:21,649 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:44:24,916 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 96 proven. 4418 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:44:24,916 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:44:33,260 INFO L134 CoverageAnalysis]: Checked inductivity of 4517 backedges. 96 proven. 4418 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:44:33,260 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [418825888] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:44:33,260 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:44:33,261 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 97, 97] total 196 [2022-10-16 14:44:33,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [27222232] [2022-10-16 14:44:33,261 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:44:33,263 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 196 states [2022-10-16 14:44:33,263 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:44:33,267 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 196 interpolants. [2022-10-16 14:44:33,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9322, Invalid=28898, Unknown=0, NotChecked=0, Total=38220 [2022-10-16 14:44:33,272 INFO L87 Difference]: Start difference. First operand 224 states and 228 transitions. Second operand has 196 states, 196 states have (on average 2.066326530612245) internal successors, (405), 196 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:47,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:44:47,937 INFO L93 Difference]: Finished difference Result 475 states and 536 transitions. [2022-10-16 14:44:47,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 197 states. [2022-10-16 14:44:47,939 INFO L78 Accepts]: Start accepts. Automaton has has 196 states, 196 states have (on average 2.066326530612245) internal successors, (405), 196 states have internal predecessors, (405), 0 states have call successors, (0), 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 201 [2022-10-16 14:44:47,939 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:44:47,941 INFO L225 Difference]: With dead ends: 475 [2022-10-16 14:44:47,942 INFO L226 Difference]: Without dead ends: 443 [2022-10-16 14:44:47,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 597 GetRequests, 211 SyntacticMatches, 0 SemanticMatches, 386 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 41978 ImplicationChecksByTransitivity, 23.7s TimeCoverageRelationStatistics Valid=37357, Invalid=112799, Unknown=0, NotChecked=0, Total=150156 [2022-10-16 14:44:47,959 INFO L413 NwaCegarLoop]: 18 mSDtfsCounter, 854 mSDsluCounter, 238 mSDsCounter, 0 mSdLazyCounter, 792 mSolverCounterSat, 153 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 854 SdHoareTripleChecker+Valid, 256 SdHoareTripleChecker+Invalid, 945 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 153 IncrementalHoareTripleChecker+Valid, 792 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 14:44:47,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [854 Valid, 256 Invalid, 945 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [153 Valid, 792 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 14:44:47,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 443 states. [2022-10-16 14:44:48,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 443 to 439. [2022-10-16 14:44:48,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 439 states, 433 states have (on average 1.0369515011547343) internal successors, (449), 438 states have internal predecessors, (449), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:48,020 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 439 states to 439 states and 449 transitions. [2022-10-16 14:44:48,020 INFO L78 Accepts]: Start accepts. Automaton has 439 states and 449 transitions. Word has length 201 [2022-10-16 14:44:48,021 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:44:48,021 INFO L495 AbstractCegarLoop]: Abstraction has 439 states and 449 transitions. [2022-10-16 14:44:48,021 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 196 states, 196 states have (on average 2.066326530612245) internal successors, (405), 196 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:44:48,022 INFO L276 IsEmpty]: Start isEmpty. Operand 439 states and 449 transitions. [2022-10-16 14:44:48,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 400 [2022-10-16 14:44:48,028 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:44:48,028 INFO L195 NwaCegarLoop]: trace histogram [96, 95, 95, 95, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:44:48,063 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 14:44:48,242 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,SelfDestructingSolverStorable16 [2022-10-16 14:44:48,243 INFO L420 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:44:48,244 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:44:48,244 INFO L85 PathProgramCache]: Analyzing trace with hash 2129673401, now seen corresponding path program 1 times [2022-10-16 14:44:48,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:44:48,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [237089110] [2022-10-16 14:44:48,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:44:48,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:44:48,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:09,482 INFO L134 CoverageAnalysis]: Checked inductivity of 18149 backedges. 96 proven. 18050 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:45:09,483 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:45:09,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [237089110] [2022-10-16 14:45:09,483 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [237089110] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:45:09,483 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [433574833] [2022-10-16 14:45:09,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:45:09,483 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:45:09,483 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:45:09,484 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:45:09,485 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 14:45:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:45:09,647 INFO L263 TraceCheckSpWp]: Trace formula consists of 828 conjuncts, 192 conjunts are in the unsatisfiable core [2022-10-16 14:45:09,655 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:45:10,313 INFO L134 CoverageAnalysis]: Checked inductivity of 18149 backedges. 96 proven. 18050 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:45:10,313 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 14:45:43,410 INFO L134 CoverageAnalysis]: Checked inductivity of 18149 backedges. 96 proven. 18050 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:45:43,410 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [433574833] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 14:45:43,411 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 14:45:43,411 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [193, 193, 193] total 386 [2022-10-16 14:45:43,411 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1311372592] [2022-10-16 14:45:43,411 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 14:45:43,413 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 386 states [2022-10-16 14:45:43,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 14:45:43,424 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 386 interpolants. [2022-10-16 14:45:43,433 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37442, Invalid=111168, Unknown=0, NotChecked=0, Total=148610 [2022-10-16 14:45:43,435 INFO L87 Difference]: Start difference. First operand 439 states and 449 transitions. Second operand has 386 states, 386 states have (on average 2.033678756476684) internal successors, (785), 386 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:18,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 14:46:18,696 INFO L93 Difference]: Finished difference Result 878 states and 993 transitions. [2022-10-16 14:46:18,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-10-16 14:46:18,699 INFO L78 Accepts]: Start accepts. Automaton has has 386 states, 386 states have (on average 2.033678756476684) internal successors, (785), 386 states have internal predecessors, (785), 0 states have call successors, (0), 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 399 [2022-10-16 14:46:18,700 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 14:46:18,703 INFO L225 Difference]: With dead ends: 878 [2022-10-16 14:46:18,704 INFO L226 Difference]: Without dead ends: 823 [2022-10-16 14:46:18,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1179 GetRequests, 605 SyntacticMatches, 0 SemanticMatches, 574 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73431 ImplicationChecksByTransitivity, 67.8s TimeCoverageRelationStatistics Valid=92355, Invalid=238845, Unknown=0, NotChecked=0, Total=331200 [2022-10-16 14:46:18,725 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 1690 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 1206 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1690 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 1311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1206 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2022-10-16 14:46:18,726 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1690 Valid, 282 Invalid, 1311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1206 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2022-10-16 14:46:18,727 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 823 states. [2022-10-16 14:46:18,761 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 823 to 823. [2022-10-16 14:46:18,762 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 823 states, 817 states have (on average 1.0195838433292534) internal successors, (833), 822 states have internal predecessors, (833), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:18,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 823 states to 823 states and 833 transitions. [2022-10-16 14:46:18,765 INFO L78 Accepts]: Start accepts. Automaton has 823 states and 833 transitions. Word has length 399 [2022-10-16 14:46:18,766 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 14:46:18,766 INFO L495 AbstractCegarLoop]: Abstraction has 823 states and 833 transitions. [2022-10-16 14:46:18,767 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 386 states, 386 states have (on average 2.033678756476684) internal successors, (785), 386 states have internal predecessors, (785), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 14:46:18,767 INFO L276 IsEmpty]: Start isEmpty. Operand 823 states and 833 transitions. [2022-10-16 14:46:18,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 784 [2022-10-16 14:46:18,790 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 14:46:18,791 INFO L195 NwaCegarLoop]: trace histogram [192, 191, 191, 191, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 14:46:18,822 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 14:46:19,004 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2022-10-16 14:46:19,005 INFO L420 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-16 14:46:19,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 14:46:19,007 INFO L85 PathProgramCache]: Analyzing trace with hash 855368409, now seen corresponding path program 2 times [2022-10-16 14:46:19,007 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 14:46:19,007 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [685684307] [2022-10-16 14:46:19,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 14:46:19,008 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 14:46:19,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 14:47:52,394 INFO L134 CoverageAnalysis]: Checked inductivity of 73157 backedges. 192 proven. 72962 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:47:52,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 14:47:52,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [685684307] [2022-10-16 14:47:52,395 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [685684307] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 14:47:52,395 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [776112688] [2022-10-16 14:47:52,396 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 14:47:52,396 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 14:47:52,396 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 14:47:52,403 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 14:47:52,405 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 14:47:52,710 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 14:47:52,711 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 14:47:52,727 INFO L263 TraceCheckSpWp]: Trace formula consists of 1596 conjuncts, 384 conjunts are in the unsatisfiable core [2022-10-16 14:47:52,747 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 14:47:53,970 INFO L134 CoverageAnalysis]: Checked inductivity of 73157 backedges. 192 proven. 72962 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 14:47:53,970 INFO L328 TraceCheckSpWp]: Computing backward predicates...