/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf -i ../sv-benchmarks/c/array-examples/standard_copy7_ground-2.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 10:12:43,987 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 10:12:43,990 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 10:12:44,035 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 10:12:44,095 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 10:12:44,096 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 10:12:44,097 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 10:12:44,099 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 10:12:44,156 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 10:12:44,156 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 10:12:44,157 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 10:12:44,157 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 10:12:44,158 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 10:12:44,159 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 10:12:44,160 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 10:12:44,160 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 10:12:44,162 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 10:12:44,162 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 10:12:44,164 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 10:12:44,164 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 10:12:44,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 10:12:44,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 10:12:44,165 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 10:12:44,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 10:12:44,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 10:12:44,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 10:12:44,166 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 10:12:44,166 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 10:12:44,166 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 10:12:44,166 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 10:12:44,167 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 10:12:44,167 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 10:12:44,167 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 10:12:44,167 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 10:12:44,168 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:12:44,168 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 10:12:44,168 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 10:12:44,168 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 10:12:44,169 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 10:12:44,169 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 10:12:44,169 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 10:12:44,170 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 10:12:44,577 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 10:12:44,601 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 10:12:44,604 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 10:12:44,606 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 10:12:44,606 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 10:12:44,608 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copy7_ground-2.i [2022-10-16 10:12:44,680 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af0591b1/c98bd3e1ab1d42e587a0951934939935/FLAG676e5e21e [2022-10-16 10:12:45,242 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 10:12:45,242 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy7_ground-2.i [2022-10-16 10:12:45,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af0591b1/c98bd3e1ab1d42e587a0951934939935/FLAG676e5e21e [2022-10-16 10:12:45,639 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4af0591b1/c98bd3e1ab1d42e587a0951934939935 [2022-10-16 10:12:45,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 10:12:45,649 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 10:12:45,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 10:12:45,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 10:12:45,657 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 10:12:45,659 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:45,660 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d833672 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45, skipping insertion in model container [2022-10-16 10:12:45,660 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:45,668 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 10:12:45,690 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 10:12:45,845 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy7_ground-2.i[816,829] [2022-10-16 10:12:45,870 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:12:45,880 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 10:12:45,895 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copy7_ground-2.i[816,829] [2022-10-16 10:12:45,910 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 10:12:45,926 INFO L208 MainTranslator]: Completed translation [2022-10-16 10:12:45,927 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45 WrapperNode [2022-10-16 10:12:45,927 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 10:12:45,928 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 10:12:45,929 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 10:12:45,929 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 10:12:45,938 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:45,948 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:45,977 INFO L138 Inliner]: procedures = 16, calls = 48, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 178 [2022-10-16 10:12:45,978 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 10:12:45,979 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 10:12:45,979 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 10:12:45,979 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 10:12:45,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:45,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:45,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:45,994 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:46,001 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:46,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:46,010 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:46,011 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:46,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 10:12:46,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 10:12:46,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 10:12:46,015 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 10:12:46,016 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (1/1) ... [2022-10-16 10:12:46,026 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 10:12:46,040 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:46,057 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 10:12:46,081 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 10:12:46,155 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 10:12:46,156 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 10:12:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-16 10:12:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-16 10:12:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 10:12:46,157 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 10:12:46,157 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-16 10:12:46,160 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 10:12:46,299 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 10:12:46,301 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 10:12:46,692 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 10:12:46,701 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 10:12:46,701 INFO L300 CfgBuilder]: Removed 9 assume(true) statements. [2022-10-16 10:12:46,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:12:46 BoogieIcfgContainer [2022-10-16 10:12:46,704 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 10:12:46,706 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 10:12:46,707 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 10:12:46,710 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 10:12:46,711 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 10:12:45" (1/3) ... [2022-10-16 10:12:46,712 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c73b708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:12:46, skipping insertion in model container [2022-10-16 10:12:46,712 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 10:12:45" (2/3) ... [2022-10-16 10:12:46,713 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c73b708 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 10:12:46, skipping insertion in model container [2022-10-16 10:12:46,713 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 10:12:46" (3/3) ... [2022-10-16 10:12:46,714 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copy7_ground-2.i [2022-10-16 10:12:46,736 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 10:12:46,736 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 18 error locations. [2022-10-16 10:12:46,834 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 10:12:46,848 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;@1dac46a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 10:12:46,849 INFO L358 AbstractCegarLoop]: Starting to check reachability of 18 error locations. [2022-10-16 10:12:46,868 INFO L276 IsEmpty]: Start isEmpty. Operand has 71 states, 52 states have (on average 1.7115384615384615) internal successors, (89), 70 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:46,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2022-10-16 10:12:46,876 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:46,877 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2022-10-16 10:12:46,878 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:46,887 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:46,888 INFO L85 PathProgramCache]: Analyzing trace with hash 28698728, now seen corresponding path program 1 times [2022-10-16 10:12:46,899 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:46,901 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1438139896] [2022-10-16 10:12:46,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:46,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:47,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:47,418 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:12:47,419 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:47,420 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1438139896] [2022-10-16 10:12:47,421 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1438139896] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:12:47,421 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:12:47,421 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:12:47,423 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2035374504] [2022-10-16 10:12:47,424 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:12:47,429 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:12:47,429 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:47,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:12:47,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:12:47,465 INFO L87 Difference]: Start difference. First operand has 71 states, 52 states have (on average 1.7115384615384615) internal successors, (89), 70 states have internal predecessors, (89), 0 states have call successors, (0), 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 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 10:12:47,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:47,536 INFO L93 Difference]: Finished difference Result 140 states and 176 transitions. [2022-10-16 10:12:47,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:12:47,539 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 10:12:47,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:47,549 INFO L225 Difference]: With dead ends: 140 [2022-10-16 10:12:47,549 INFO L226 Difference]: Without dead ends: 70 [2022-10-16 10:12:47,553 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:12:47,558 INFO L413 NwaCegarLoop]: 75 mSDtfsCounter, 3 mSDsluCounter, 146 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 221 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 10:12:47,559 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 221 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:12:47,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 70 states. [2022-10-16 10:12:47,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 70 to 70. [2022-10-16 10:12:47,600 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 70 states, 52 states have (on average 1.5) internal successors, (78), 69 states have internal predecessors, (78), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:47,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 70 states to 70 states and 78 transitions. [2022-10-16 10:12:47,603 INFO L78 Accepts]: Start accepts. Automaton has 70 states and 78 transitions. Word has length 5 [2022-10-16 10:12:47,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:47,604 INFO L495 AbstractCegarLoop]: Abstraction has 70 states and 78 transitions. [2022-10-16 10:12:47,604 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 10:12:47,605 INFO L276 IsEmpty]: Start isEmpty. Operand 70 states and 78 transitions. [2022-10-16 10:12:47,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-10-16 10:12:47,605 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:47,605 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1] [2022-10-16 10:12:47,606 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 10:12:47,606 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:47,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:47,607 INFO L85 PathProgramCache]: Analyzing trace with hash -363792156, now seen corresponding path program 1 times [2022-10-16 10:12:47,607 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:47,608 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [501502516] [2022-10-16 10:12:47,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:47,608 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:47,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:47,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:12:47,723 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:47,723 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [501502516] [2022-10-16 10:12:47,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [501502516] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:12:47,724 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:12:47,724 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:12:47,724 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [214098809] [2022-10-16 10:12:47,724 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:12:47,726 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:12:47,726 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:47,727 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:12:47,727 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:12:47,727 INFO L87 Difference]: Start difference. First operand 70 states and 78 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:47,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:47,765 INFO L93 Difference]: Finished difference Result 70 states and 78 transitions. [2022-10-16 10:12:47,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:12:47,766 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 9 [2022-10-16 10:12:47,766 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:47,768 INFO L225 Difference]: With dead ends: 70 [2022-10-16 10:12:47,768 INFO L226 Difference]: Without dead ends: 69 [2022-10-16 10:12:47,768 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:12:47,770 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 5 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 201 SdHoareTripleChecker+Invalid, 11 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:47,771 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 201 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:12:47,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 69 states. [2022-10-16 10:12:47,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 69 to 69. [2022-10-16 10:12:47,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 68 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:47,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 77 transitions. [2022-10-16 10:12:47,783 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 77 transitions. Word has length 9 [2022-10-16 10:12:47,783 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:47,783 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 77 transitions. [2022-10-16 10:12:47,783 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:47,784 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 77 transitions. [2022-10-16 10:12:47,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-16 10:12:47,784 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:47,784 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1] [2022-10-16 10:12:47,785 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 10:12:47,785 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:47,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:47,786 INFO L85 PathProgramCache]: Analyzing trace with hash 1607345098, now seen corresponding path program 1 times [2022-10-16 10:12:47,786 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:47,786 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [44276838] [2022-10-16 10:12:47,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:47,787 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:47,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:48,032 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:12:48,032 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:48,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [44276838] [2022-10-16 10:12:48,033 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [44276838] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:12:48,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [946052666] [2022-10-16 10:12:48,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:48,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:48,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:48,036 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:12:48,066 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 10:12:48,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:48,175 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:12:48,181 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:12:48,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:12:48,248 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:12:48,248 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [946052666] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:12:48,248 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:12:48,249 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 10:12:48,249 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1399559405] [2022-10-16 10:12:48,249 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:12:48,250 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:12:48,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:48,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:12:48,251 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 10:12:48,251 INFO L87 Difference]: Start difference. First operand 69 states and 77 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 10:12:48,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:48,289 INFO L93 Difference]: Finished difference Result 69 states and 77 transitions. [2022-10-16 10:12:48,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:12:48,289 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 10 [2022-10-16 10:12:48,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:48,291 INFO L225 Difference]: With dead ends: 69 [2022-10-16 10:12:48,291 INFO L226 Difference]: Without dead ends: 68 [2022-10-16 10:12:48,292 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 10:12:48,294 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 68 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 9 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 68 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 9 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:48,294 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [68 Valid, 134 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 9 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:12:48,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-10-16 10:12:48,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 65. [2022-10-16 10:12:48,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 65 states, 49 states have (on average 1.489795918367347) internal successors, (73), 64 states have internal predecessors, (73), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:48,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 65 states to 65 states and 73 transitions. [2022-10-16 10:12:48,309 INFO L78 Accepts]: Start accepts. Automaton has 65 states and 73 transitions. Word has length 10 [2022-10-16 10:12:48,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:48,310 INFO L495 AbstractCegarLoop]: Abstraction has 65 states and 73 transitions. [2022-10-16 10:12:48,310 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 10:12:48,310 INFO L276 IsEmpty]: Start isEmpty. Operand 65 states and 73 transitions. [2022-10-16 10:12:48,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 10:12:48,311 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:48,311 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:48,357 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 10:12:48,529 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 10:12:48,529 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:48,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:48,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1713504278, now seen corresponding path program 1 times [2022-10-16 10:12:48,531 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:48,531 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1267479542] [2022-10-16 10:12:48,531 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:48,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:48,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:48,679 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:12:48,680 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:48,680 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1267479542] [2022-10-16 10:12:48,680 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1267479542] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:12:48,681 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [565910101] [2022-10-16 10:12:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:48,681 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:48,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:48,683 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:12:48,705 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 10:12:48,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:48,783 INFO L263 TraceCheckSpWp]: Trace formula consists of 185 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:12:48,785 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:12:48,811 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:12:48,811 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:12:48,847 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 10:12:48,848 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [565910101] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:12:48,848 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:12:48,848 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2022-10-16 10:12:48,849 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1737591374] [2022-10-16 10:12:48,849 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:12:48,850 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2022-10-16 10:12:48,850 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:48,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2022-10-16 10:12:48,851 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2022-10-16 10:12:48,851 INFO L87 Difference]: Start difference. First operand 65 states and 73 transitions. Second operand has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:48,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:48,917 INFO L93 Difference]: Finished difference Result 131 states and 148 transitions. [2022-10-16 10:12:48,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 10:12:48,919 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 10:12:48,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:48,920 INFO L225 Difference]: With dead ends: 131 [2022-10-16 10:12:48,920 INFO L226 Difference]: Without dead ends: 73 [2022-10-16 10:12:48,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2022-10-16 10:12:48,923 INFO L413 NwaCegarLoop]: 68 mSDtfsCounter, 9 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 402 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:48,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 402 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:12:48,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2022-10-16 10:12:48,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2022-10-16 10:12:48,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 57 states have (on average 1.4210526315789473) internal successors, (81), 72 states have internal predecessors, (81), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:48,935 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2022-10-16 10:12:48,935 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 11 [2022-10-16 10:12:48,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:48,936 INFO L495 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2022-10-16 10:12:48,936 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 2.2) internal successors, (22), 10 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:48,936 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2022-10-16 10:12:48,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 10:12:48,937 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:48,937 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:48,977 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 10:12:49,153 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 10:12:49,155 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:49,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:49,156 INFO L85 PathProgramCache]: Analyzing trace with hash -230725406, now seen corresponding path program 2 times [2022-10-16 10:12:49,156 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:49,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329652471] [2022-10-16 10:12:49,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:49,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:49,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:49,351 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2022-10-16 10:12:49,351 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:49,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329652471] [2022-10-16 10:12:49,355 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329652471] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:12:49,356 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:12:49,356 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:12:49,357 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412888617] [2022-10-16 10:12:49,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:12:49,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:12:49,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:49,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:12:49,369 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:12:49,370 INFO L87 Difference]: Start difference. First operand 73 states and 81 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 10:12:49,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:49,496 INFO L93 Difference]: Finished difference Result 166 states and 187 transitions. [2022-10-16 10:12:49,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:12:49,497 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 19 [2022-10-16 10:12:49,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:49,501 INFO L225 Difference]: With dead ends: 166 [2022-10-16 10:12:49,501 INFO L226 Difference]: Without dead ends: 113 [2022-10-16 10:12:49,502 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:12:49,504 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 33 mSDsluCounter, 89 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 78 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:49,504 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 145 Invalid, 78 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:12:49,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2022-10-16 10:12:49,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 83. [2022-10-16 10:12:49,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 67 states have (on average 1.3582089552238805) internal successors, (91), 82 states have internal predecessors, (91), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:49,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 91 transitions. [2022-10-16 10:12:49,516 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 91 transitions. Word has length 19 [2022-10-16 10:12:49,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:49,517 INFO L495 AbstractCegarLoop]: Abstraction has 83 states and 91 transitions. [2022-10-16 10:12:49,517 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 10:12:49,517 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 91 transitions. [2022-10-16 10:12:49,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 10:12:49,518 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:49,518 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:49,519 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 10:12:49,519 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:49,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:49,519 INFO L85 PathProgramCache]: Analyzing trace with hash -2133188386, now seen corresponding path program 1 times [2022-10-16 10:12:49,520 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:49,520 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [740005994] [2022-10-16 10:12:49,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:49,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:49,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:49,596 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 10:12:49,596 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:49,597 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [740005994] [2022-10-16 10:12:49,597 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [740005994] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:12:49,597 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:12:49,597 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:12:49,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114481899] [2022-10-16 10:12:49,598 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:12:49,598 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:12:49,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:49,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:12:49,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:12:49,599 INFO L87 Difference]: Start difference. First operand 83 states and 91 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 10:12:49,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:49,686 INFO L93 Difference]: Finished difference Result 83 states and 91 transitions. [2022-10-16 10:12:49,686 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:12:49,686 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-16 10:12:49,687 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:49,688 INFO L225 Difference]: With dead ends: 83 [2022-10-16 10:12:49,688 INFO L226 Difference]: Without dead ends: 82 [2022-10-16 10:12:49,688 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:12:49,695 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 35 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:49,696 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 122 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:12:49,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-16 10:12:49,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2022-10-16 10:12:49,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 67 states have (on average 1.3432835820895523) 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 10:12:49,720 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 90 transitions. [2022-10-16 10:12:49,720 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 90 transitions. Word has length 23 [2022-10-16 10:12:49,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:49,722 INFO L495 AbstractCegarLoop]: Abstraction has 82 states and 90 transitions. [2022-10-16 10:12:49,722 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 10:12:49,723 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 90 transitions. [2022-10-16 10:12:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 10:12:49,724 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:49,724 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:49,724 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-16 10:12:49,724 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:49,725 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:49,725 INFO L85 PathProgramCache]: Analyzing trace with hash -1704330462, now seen corresponding path program 1 times [2022-10-16 10:12:49,725 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:49,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923771394] [2022-10-16 10:12:49,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:49,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:49,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:49,935 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:12:49,935 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:49,935 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923771394] [2022-10-16 10:12:49,936 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923771394] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:12:49,936 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [316558596] [2022-10-16 10:12:49,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:49,936 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:49,936 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:49,938 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:12:49,961 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 10:12:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:50,057 INFO L263 TraceCheckSpWp]: Trace formula consists of 223 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 10:12:50,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:12:50,128 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:12:50,129 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:12:50,245 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:12:50,245 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [316558596] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:12:50,246 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:12:50,246 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 18 [2022-10-16 10:12:50,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1655722534] [2022-10-16 10:12:50,246 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:12:50,247 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 10:12:50,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:50,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 10:12:50,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2022-10-16 10:12:50,249 INFO L87 Difference]: Start difference. First operand 82 states and 90 transitions. Second operand has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 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 10:12:50,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:50,411 INFO L93 Difference]: Finished difference Result 165 states and 184 transitions. [2022-10-16 10:12:50,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 10:12:50,412 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 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) Word has length 24 [2022-10-16 10:12:50,412 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:50,414 INFO L225 Difference]: With dead ends: 165 [2022-10-16 10:12:50,414 INFO L226 Difference]: Without dead ends: 98 [2022-10-16 10:12:50,417 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=171, Invalid=381, Unknown=0, NotChecked=0, Total=552 [2022-10-16 10:12:50,426 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 35 mSDsluCounter, 460 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 527 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:50,426 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 527 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:12:50,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 98 states. [2022-10-16 10:12:50,439 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 98 to 98. [2022-10-16 10:12:50,440 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 98 states, 83 states have (on average 1.2771084337349397) internal successors, (106), 97 states have internal predecessors, (106), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:50,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 98 states to 98 states and 106 transitions. [2022-10-16 10:12:50,441 INFO L78 Accepts]: Start accepts. Automaton has 98 states and 106 transitions. Word has length 24 [2022-10-16 10:12:50,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:50,441 INFO L495 AbstractCegarLoop]: Abstraction has 98 states and 106 transitions. [2022-10-16 10:12:50,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.2222222222222223) internal successors, (40), 18 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 10:12:50,442 INFO L276 IsEmpty]: Start isEmpty. Operand 98 states and 106 transitions. [2022-10-16 10:12:50,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 10:12:50,443 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:50,443 INFO L195 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:50,478 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 10:12:50,657 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:50,658 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:50,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:50,659 INFO L85 PathProgramCache]: Analyzing trace with hash -1811331278, now seen corresponding path program 2 times [2022-10-16 10:12:50,659 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:50,659 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [844429155] [2022-10-16 10:12:50,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:50,660 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:50,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:51,008 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:12:51,009 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:51,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [844429155] [2022-10-16 10:12:51,009 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [844429155] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:12:51,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1826161488] [2022-10-16 10:12:51,009 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:12:51,010 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:51,010 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:51,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:12:51,032 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 10:12:51,138 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:12:51,138 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:12:51,140 INFO L263 TraceCheckSpWp]: Trace formula consists of 275 conjuncts, 16 conjunts are in the unsatisfiable core [2022-10-16 10:12:51,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:12:51,213 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:12:51,213 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:12:51,517 INFO L134 CoverageAnalysis]: Checked inductivity of 95 backedges. 0 proven. 91 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:12:51,518 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1826161488] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:12:51,518 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:12:51,518 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 34 [2022-10-16 10:12:51,518 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175464037] [2022-10-16 10:12:51,519 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:12:51,519 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2022-10-16 10:12:51,519 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:51,520 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2022-10-16 10:12:51,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=306, Invalid=816, Unknown=0, NotChecked=0, Total=1122 [2022-10-16 10:12:51,521 INFO L87 Difference]: Start difference. First operand 98 states and 106 transitions. Second operand has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:51,898 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:51,898 INFO L93 Difference]: Finished difference Result 197 states and 220 transitions. [2022-10-16 10:12:51,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 10:12:51,899 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 40 [2022-10-16 10:12:51,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:51,900 INFO L225 Difference]: With dead ends: 197 [2022-10-16 10:12:51,900 INFO L226 Difference]: Without dead ends: 130 [2022-10-16 10:12:51,902 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 109 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 479 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=659, Invalid=1597, Unknown=0, NotChecked=0, Total=2256 [2022-10-16 10:12:51,903 INFO L413 NwaCegarLoop]: 67 mSDtfsCounter, 95 mSDsluCounter, 394 mSDsCounter, 0 mSdLazyCounter, 104 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 104 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:51,903 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 461 Invalid, 114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 104 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:12:51,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2022-10-16 10:12:51,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2022-10-16 10:12:51,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 130 states, 115 states have (on average 1.2) internal successors, (138), 129 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:51,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 138 transitions. [2022-10-16 10:12:51,914 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 138 transitions. Word has length 40 [2022-10-16 10:12:51,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:51,914 INFO L495 AbstractCegarLoop]: Abstraction has 130 states and 138 transitions. [2022-10-16 10:12:51,915 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 34 states have (on average 2.1176470588235294) internal successors, (72), 34 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:51,915 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 138 transitions. [2022-10-16 10:12:51,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2022-10-16 10:12:51,917 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:51,917 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:51,958 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 10:12:52,134 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:52,135 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:52,135 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:52,136 INFO L85 PathProgramCache]: Analyzing trace with hash -1894154414, now seen corresponding path program 3 times [2022-10-16 10:12:52,136 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:52,136 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1708722670] [2022-10-16 10:12:52,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:52,137 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:52,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:53,159 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 10:12:53,159 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:53,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1708722670] [2022-10-16 10:12:53,160 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1708722670] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:12:53,160 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [350177943] [2022-10-16 10:12:53,160 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:12:53,160 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:53,161 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:53,161 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:12:53,162 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 10:12:53,294 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:12:53,295 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:12:53,296 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:12:53,304 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:12:53,352 INFO L134 CoverageAnalysis]: Checked inductivity of 439 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:12:53,352 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:12:53,353 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [350177943] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:12:53,353 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:12:53,353 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [33] total 35 [2022-10-16 10:12:53,353 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303849981] [2022-10-16 10:12:53,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:12:53,354 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:12:53,354 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:53,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:12:53,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=292, Invalid=898, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 10:12:53,356 INFO L87 Difference]: Start difference. First operand 130 states and 138 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 10:12:53,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:53,441 INFO L93 Difference]: Finished difference Result 130 states and 138 transitions. [2022-10-16 10:12:53,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:12:53,442 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 72 [2022-10-16 10:12:53,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:53,443 INFO L225 Difference]: With dead ends: 130 [2022-10-16 10:12:53,443 INFO L226 Difference]: Without dead ends: 129 [2022-10-16 10:12:53,444 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 268 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=296, Invalid=964, Unknown=0, NotChecked=0, Total=1260 [2022-10-16 10:12:53,446 INFO L413 NwaCegarLoop]: 47 mSDtfsCounter, 48 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 48 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:53,446 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [48 Valid, 99 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:12:53,448 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2022-10-16 10:12:53,456 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 126. [2022-10-16 10:12:53,457 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 126 states, 112 states have (on average 1.1964285714285714) internal successors, (134), 125 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:53,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 126 states to 126 states and 134 transitions. [2022-10-16 10:12:53,458 INFO L78 Accepts]: Start accepts. Automaton has 126 states and 134 transitions. Word has length 72 [2022-10-16 10:12:53,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:53,459 INFO L495 AbstractCegarLoop]: Abstraction has 126 states and 134 transitions. [2022-10-16 10:12:53,460 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 10:12:53,460 INFO L276 IsEmpty]: Start isEmpty. Operand 126 states and 134 transitions. [2022-10-16 10:12:53,461 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2022-10-16 10:12:53,461 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:53,461 INFO L195 NwaCegarLoop]: trace histogram [15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:53,510 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 10:12:53,675 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:53,676 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:53,677 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:53,677 INFO L85 PathProgramCache]: Analyzing trace with hash 1409160564, now seen corresponding path program 1 times [2022-10-16 10:12:53,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:53,678 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1845380759] [2022-10-16 10:12:53,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:53,678 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:53,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:53,886 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2022-10-16 10:12:53,886 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:53,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1845380759] [2022-10-16 10:12:53,886 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1845380759] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:12:53,887 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774162493] [2022-10-16 10:12:53,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:53,887 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:53,887 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:12:53,891 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:12:53,912 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 10:12:54,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:54,039 INFO L263 TraceCheckSpWp]: Trace formula consists of 381 conjuncts, 32 conjunts are in the unsatisfiable core [2022-10-16 10:12:54,046 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:12:54,599 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:12:54,599 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:12:55,600 INFO L134 CoverageAnalysis]: Checked inductivity of 436 backedges. 0 proven. 435 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 10:12:55,601 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774162493] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:12:55,601 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:12:55,601 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 33, 33] total 67 [2022-10-16 10:12:55,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888033801] [2022-10-16 10:12:55,601 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:12:55,602 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 67 states [2022-10-16 10:12:55,603 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:55,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 67 interpolants. [2022-10-16 10:12:55,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1063, Invalid=3359, Unknown=0, NotChecked=0, Total=4422 [2022-10-16 10:12:55,607 INFO L87 Difference]: Start difference. First operand 126 states and 134 transitions. Second operand has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:56,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:56,802 INFO L93 Difference]: Finished difference Result 290 states and 322 transitions. [2022-10-16 10:12:56,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 66 states. [2022-10-16 10:12:56,804 INFO L78 Accepts]: Start accepts. Automaton has has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 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 73 [2022-10-16 10:12:56,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:56,808 INFO L225 Difference]: With dead ends: 290 [2022-10-16 10:12:56,808 INFO L226 Difference]: Without dead ends: 227 [2022-10-16 10:12:56,812 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 180 GetRequests, 84 SyntacticMatches, 0 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1847 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=2539, Invalid=6967, Unknown=0, NotChecked=0, Total=9506 [2022-10-16 10:12:56,814 INFO L413 NwaCegarLoop]: 50 mSDtfsCounter, 233 mSDsluCounter, 545 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 595 SdHoareTripleChecker+Invalid, 477 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:56,816 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 595 Invalid, 477 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:12:56,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 227 states. [2022-10-16 10:12:56,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 227 to 194. [2022-10-16 10:12:56,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 194 states, 180 states have (on average 1.1222222222222222) internal successors, (202), 193 states have internal predecessors, (202), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:56,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 194 states to 194 states and 202 transitions. [2022-10-16 10:12:56,833 INFO L78 Accepts]: Start accepts. Automaton has 194 states and 202 transitions. Word has length 73 [2022-10-16 10:12:56,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:56,834 INFO L495 AbstractCegarLoop]: Abstraction has 194 states and 202 transitions. [2022-10-16 10:12:56,834 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 67 states, 67 states have (on average 2.1940298507462686) internal successors, (147), 67 states have internal predecessors, (147), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:56,835 INFO L276 IsEmpty]: Start isEmpty. Operand 194 states and 202 transitions. [2022-10-16 10:12:56,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2022-10-16 10:12:56,839 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:56,840 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:56,877 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 10:12:57,047 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:12:57,048 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:57,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:57,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1254469680, now seen corresponding path program 2 times [2022-10-16 10:12:57,050 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:57,050 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79698869] [2022-10-16 10:12:57,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:57,051 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:57,300 INFO L134 CoverageAnalysis]: Checked inductivity of 1897 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1897 trivial. 0 not checked. [2022-10-16 10:12:57,301 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:57,301 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [79698869] [2022-10-16 10:12:57,301 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [79698869] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:12:57,301 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:12:57,302 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:12:57,302 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1059214626] [2022-10-16 10:12:57,302 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:12:57,303 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:12:57,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:57,304 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:12:57,305 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:12:57,305 INFO L87 Difference]: Start difference. First operand 194 states and 202 transitions. Second operand has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:57,407 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:57,407 INFO L93 Difference]: Finished difference Result 224 states and 232 transitions. [2022-10-16 10:12:57,407 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:12:57,408 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 141 [2022-10-16 10:12:57,410 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:57,411 INFO L225 Difference]: With dead ends: 224 [2022-10-16 10:12:57,412 INFO L226 Difference]: Without dead ends: 222 [2022-10-16 10:12:57,412 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:12:57,413 INFO L413 NwaCegarLoop]: 54 mSDtfsCounter, 31 mSDsluCounter, 85 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:57,414 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 139 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 10:12:57,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222 states. [2022-10-16 10:12:57,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222 to 197. [2022-10-16 10:12:57,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 183 states have (on average 1.1202185792349726) internal successors, (205), 196 states have internal predecessors, (205), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:57,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 205 transitions. [2022-10-16 10:12:57,429 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 205 transitions. Word has length 141 [2022-10-16 10:12:57,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:57,431 INFO L495 AbstractCegarLoop]: Abstraction has 197 states and 205 transitions. [2022-10-16 10:12:57,431 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.666666666666667) internal successors, (17), 4 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:57,431 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 205 transitions. [2022-10-16 10:12:57,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2022-10-16 10:12:57,444 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:57,445 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:57,445 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2022-10-16 10:12:57,445 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:57,446 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:57,446 INFO L85 PathProgramCache]: Analyzing trace with hash 322471340, now seen corresponding path program 1 times [2022-10-16 10:12:57,447 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:57,447 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1952493109] [2022-10-16 10:12:57,447 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:57,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:57,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:12:57,722 INFO L134 CoverageAnalysis]: Checked inductivity of 1900 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1898 trivial. 0 not checked. [2022-10-16 10:12:57,722 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:12:57,722 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1952493109] [2022-10-16 10:12:57,723 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1952493109] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:12:57,723 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 10:12:57,723 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 10:12:57,723 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854483943] [2022-10-16 10:12:57,723 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:12:57,724 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:12:57,724 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:12:57,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:12:57,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 10:12:57,725 INFO L87 Difference]: Start difference. First operand 197 states and 205 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:57,788 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:12:57,788 INFO L93 Difference]: Finished difference Result 197 states and 205 transitions. [2022-10-16 10:12:57,789 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:12:57,789 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 145 [2022-10-16 10:12:57,789 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:12:57,791 INFO L225 Difference]: With dead ends: 197 [2022-10-16 10:12:57,791 INFO L226 Difference]: Without dead ends: 196 [2022-10-16 10:12:57,792 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-16 10:12:57,793 INFO L413 NwaCegarLoop]: 52 mSDtfsCounter, 33 mSDsluCounter, 66 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 118 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:12:57,793 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 118 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:12:57,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196 states. [2022-10-16 10:12:57,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196 to 196. [2022-10-16 10:12:57,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 183 states have (on average 1.1147540983606556) internal successors, (204), 195 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 10:12:57,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 204 transitions. [2022-10-16 10:12:57,807 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 204 transitions. Word has length 145 [2022-10-16 10:12:57,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:12:57,807 INFO L495 AbstractCegarLoop]: Abstraction has 196 states and 204 transitions. [2022-10-16 10:12:57,808 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:12:57,808 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 204 transitions. [2022-10-16 10:12:57,811 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2022-10-16 10:12:57,811 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:12:57,812 INFO L195 NwaCegarLoop]: trace histogram [31, 31, 31, 31, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:12:57,812 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2022-10-16 10:12:57,812 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:12:57,813 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:12:57,813 INFO L85 PathProgramCache]: Analyzing trace with hash 1406677030, now seen corresponding path program 1 times [2022-10-16 10:12:57,813 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:12:57,813 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443090996] [2022-10-16 10:12:57,814 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:12:57,814 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:12:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:13:01,209 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:13:01,210 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:13:01,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443090996] [2022-10-16 10:13:01,210 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443090996] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:13:01,210 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1740819044] [2022-10-16 10:13:01,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:13:01,211 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:13:01,211 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:13:01,212 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:13:01,231 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 10:13:01,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:13:01,403 INFO L263 TraceCheckSpWp]: Trace formula consists of 612 conjuncts, 64 conjunts are in the unsatisfiable core [2022-10-16 10:13:01,410 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:13:01,649 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:13:01,650 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:13:05,266 INFO L134 CoverageAnalysis]: Checked inductivity of 1901 backedges. 0 proven. 1891 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:13:05,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1740819044] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:13:05,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:13:05,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 130 [2022-10-16 10:13:05,267 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715101251] [2022-10-16 10:13:05,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:13:05,269 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 130 states [2022-10-16 10:13:05,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:13:05,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 130 interpolants. [2022-10-16 10:13:05,277 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4290, Invalid=12480, Unknown=0, NotChecked=0, Total=16770 [2022-10-16 10:13:05,277 INFO L87 Difference]: Start difference. First operand 196 states and 204 transitions. Second operand has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:13:08,640 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:13:08,641 INFO L93 Difference]: Finished difference Result 393 states and 440 transitions. [2022-10-16 10:13:08,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-10-16 10:13:08,642 INFO L78 Accepts]: Start accepts. Automaton has has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 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 146 [2022-10-16 10:13:08,642 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:13:08,644 INFO L225 Difference]: With dead ends: 393 [2022-10-16 10:13:08,644 INFO L226 Difference]: Without dead ends: 324 [2022-10-16 10:13:08,653 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 417 GetRequests, 227 SyntacticMatches, 0 SemanticMatches, 190 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8087 ImplicationChecksByTransitivity, 7.1s TimeCoverageRelationStatistics Valid=10307, Invalid=26365, Unknown=0, NotChecked=0, Total=36672 [2022-10-16 10:13:08,653 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 459 mSDsluCounter, 507 mSDsCounter, 0 mSdLazyCounter, 390 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 459 SdHoareTripleChecker+Valid, 572 SdHoareTripleChecker+Invalid, 427 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 390 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 10:13:08,654 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [459 Valid, 572 Invalid, 427 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 390 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 10:13:08,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2022-10-16 10:13:08,666 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2022-10-16 10:13:08,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 311 states have (on average 1.067524115755627) internal successors, (332), 323 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:13:08,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 332 transitions. [2022-10-16 10:13:08,668 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 332 transitions. Word has length 146 [2022-10-16 10:13:08,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:13:08,669 INFO L495 AbstractCegarLoop]: Abstraction has 324 states and 332 transitions. [2022-10-16 10:13:08,669 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 130 states, 130 states have (on average 2.076923076923077) internal successors, (270), 130 states have internal predecessors, (270), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:13:08,670 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 332 transitions. [2022-10-16 10:13:08,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 275 [2022-10-16 10:13:08,673 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:13:08,673 INFO L195 NwaCegarLoop]: trace histogram [63, 63, 63, 63, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:13:08,706 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 10:13:08,888 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:13:08,889 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:13:08,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:13:08,890 INFO L85 PathProgramCache]: Analyzing trace with hash -1212059482, now seen corresponding path program 2 times [2022-10-16 10:13:08,890 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:13:08,891 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1186645581] [2022-10-16 10:13:08,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:13:08,891 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:13:09,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:13:20,012 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:13:20,013 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:13:20,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1186645581] [2022-10-16 10:13:20,013 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1186645581] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:13:20,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1720561451] [2022-10-16 10:13:20,013 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 10:13:20,013 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:13:20,014 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:13:20,014 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:13:20,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 10:13:20,331 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 10:13:20,331 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:13:20,339 INFO L263 TraceCheckSpWp]: Trace formula consists of 1028 conjuncts, 128 conjunts are in the unsatisfiable core [2022-10-16 10:13:20,349 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:13:20,870 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:13:20,870 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:13:35,645 INFO L134 CoverageAnalysis]: Checked inductivity of 7885 backedges. 0 proven. 7875 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:13:35,646 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1720561451] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:13:35,646 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:13:35,646 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [129, 129, 129] total 258 [2022-10-16 10:13:35,646 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [14103207] [2022-10-16 10:13:35,647 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:13:35,648 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 258 states [2022-10-16 10:13:35,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:13:35,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 258 interpolants. [2022-10-16 10:13:35,660 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16770, Invalid=49536, Unknown=0, NotChecked=0, Total=66306 [2022-10-16 10:13:35,661 INFO L87 Difference]: Start difference. First operand 324 states and 332 transitions. Second operand has 258 states, 258 states have (on average 2.0387596899224807) internal successors, (526), 258 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:13:48,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:13:48,944 INFO L93 Difference]: Finished difference Result 649 states and 728 transitions. [2022-10-16 10:13:48,945 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 255 states. [2022-10-16 10:13:48,945 INFO L78 Accepts]: Start accepts. Automaton has has 258 states, 258 states have (on average 2.0387596899224807) internal successors, (526), 258 states have internal predecessors, (526), 0 states have call successors, (0), 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 274 [2022-10-16 10:13:48,946 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:13:48,949 INFO L225 Difference]: With dead ends: 649 [2022-10-16 10:13:48,950 INFO L226 Difference]: Without dead ends: 580 [2022-10-16 10:13:48,958 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 801 GetRequests, 419 SyntacticMatches, 0 SemanticMatches, 382 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32567 ImplicationChecksByTransitivity, 29.4s TimeCoverageRelationStatistics Valid=41091, Invalid=105981, Unknown=0, NotChecked=0, Total=147072 [2022-10-16 10:13:48,959 INFO L413 NwaCegarLoop]: 65 mSDtfsCounter, 1085 mSDsluCounter, 890 mSDsCounter, 0 mSdLazyCounter, 794 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1085 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 864 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 794 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-16 10:13:48,959 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1085 Valid, 955 Invalid, 864 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 794 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-16 10:13:48,961 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580 states. [2022-10-16 10:13:48,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580 to 580. [2022-10-16 10:13:48,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 580 states, 567 states have (on average 1.037037037037037) internal successors, (588), 579 states have internal predecessors, (588), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:13:48,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 580 states to 580 states and 588 transitions. [2022-10-16 10:13:48,982 INFO L78 Accepts]: Start accepts. Automaton has 580 states and 588 transitions. Word has length 274 [2022-10-16 10:13:48,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:13:48,982 INFO L495 AbstractCegarLoop]: Abstraction has 580 states and 588 transitions. [2022-10-16 10:13:48,983 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 258 states, 258 states have (on average 2.0387596899224807) internal successors, (526), 258 states have internal predecessors, (526), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:13:48,983 INFO L276 IsEmpty]: Start isEmpty. Operand 580 states and 588 transitions. [2022-10-16 10:13:48,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 531 [2022-10-16 10:13:48,994 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:13:48,994 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:13:49,034 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-16 10:13:49,207 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,SelfDestructingSolverStorable13 [2022-10-16 10:13:49,208 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:13:49,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:13:49,209 INFO L85 PathProgramCache]: Analyzing trace with hash 570159526, now seen corresponding path program 3 times [2022-10-16 10:13:49,210 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:13:49,210 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [68701624] [2022-10-16 10:13:49,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:13:49,211 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:13:49,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:30,187 INFO L134 CoverageAnalysis]: Checked inductivity of 32141 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2022-10-16 10:14:30,188 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:30,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [68701624] [2022-10-16 10:14:30,188 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [68701624] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:14:30,188 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1923768574] [2022-10-16 10:14:30,188 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 10:14:30,188 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:30,189 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:30,190 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:14:30,192 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 10:14:30,455 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 10:14:30,455 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 10:14:30,457 INFO L263 TraceCheckSpWp]: Trace formula consists of 211 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 10:14:30,465 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:14:30,731 INFO L134 CoverageAnalysis]: Checked inductivity of 32141 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2022-10-16 10:14:30,731 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 10:14:30,731 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1923768574] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 10:14:30,731 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 10:14:30,732 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [257] total 259 [2022-10-16 10:14:30,732 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904035530] [2022-10-16 10:14:30,732 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 10:14:30,733 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 10:14:30,733 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:14:30,733 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 10:14:30,738 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16644, Invalid=50178, Unknown=0, NotChecked=0, Total=66822 [2022-10-16 10:14:30,738 INFO L87 Difference]: Start difference. First operand 580 states and 588 transitions. Second operand has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:30,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 10:14:30,919 INFO L93 Difference]: Finished difference Result 580 states and 588 transitions. [2022-10-16 10:14:30,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 10:14:30,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 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 530 [2022-10-16 10:14:30,920 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 10:14:30,923 INFO L225 Difference]: With dead ends: 580 [2022-10-16 10:14:30,923 INFO L226 Difference]: Without dead ends: 579 [2022-10-16 10:14:30,930 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 787 GetRequests, 529 SyntacticMatches, 0 SemanticMatches, 258 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16508 ImplicationChecksByTransitivity, 21.7s TimeCoverageRelationStatistics Valid=16648, Invalid=50692, Unknown=0, NotChecked=0, Total=67340 [2022-10-16 10:14:30,934 INFO L413 NwaCegarLoop]: 45 mSDtfsCounter, 46 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 95 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 10:14:30,935 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 95 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 10:14:30,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 579 states. [2022-10-16 10:14:30,957 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 579 to 576. [2022-10-16 10:14:30,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 576 states, 564 states have (on average 1.0354609929078014) internal successors, (584), 575 states have internal predecessors, (584), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:30,960 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 576 states to 576 states and 584 transitions. [2022-10-16 10:14:30,960 INFO L78 Accepts]: Start accepts. Automaton has 576 states and 584 transitions. Word has length 530 [2022-10-16 10:14:30,961 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 10:14:30,961 INFO L495 AbstractCegarLoop]: Abstraction has 576 states and 584 transitions. [2022-10-16 10:14:30,962 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.333333333333333) internal successors, (22), 4 states have internal predecessors, (22), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 10:14:30,962 INFO L276 IsEmpty]: Start isEmpty. Operand 576 states and 584 transitions. [2022-10-16 10:14:30,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 532 [2022-10-16 10:14:30,974 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 10:14:30,974 INFO L195 NwaCegarLoop]: trace histogram [127, 127, 127, 127, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 10:14:31,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 10:14:31,187 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,SelfDestructingSolverStorable14 [2022-10-16 10:14:31,188 INFO L420 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 15 more)] === [2022-10-16 10:14:31,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 10:14:31,189 INFO L85 PathProgramCache]: Analyzing trace with hash 493481394, now seen corresponding path program 1 times [2022-10-16 10:14:31,189 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 10:14:31,190 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [523201744] [2022-10-16 10:14:31,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:31,190 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 10:14:31,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:31,744 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 32137 trivial. 0 not checked. [2022-10-16 10:14:31,744 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 10:14:31,744 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [523201744] [2022-10-16 10:14:31,745 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [523201744] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 10:14:31,745 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [855645880] [2022-10-16 10:14:31,745 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 10:14:31,746 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 10:14:31,746 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 10:14:31,747 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 10:14:31,770 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 10:14:32,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 10:14:32,217 INFO L263 TraceCheckSpWp]: Trace formula consists of 1862 conjuncts, 256 conjunts are in the unsatisfiable core [2022-10-16 10:14:32,231 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 10:14:53,625 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:14:53,626 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 10:15:50,660 INFO L134 CoverageAnalysis]: Checked inductivity of 32138 backedges. 0 proven. 32131 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 10:15:50,661 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [855645880] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 10:15:50,661 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 10:15:50,661 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 257, 257] total 515 [2022-10-16 10:15:50,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [874182899] [2022-10-16 10:15:50,661 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 10:15:50,663 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 515 states [2022-10-16 10:15:50,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 10:15:50,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 515 interpolants. [2022-10-16 10:15:50,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=65799, Invalid=198911, Unknown=0, NotChecked=0, Total=264710 [2022-10-16 10:15:50,688 INFO L87 Difference]: Start difference. First operand 576 states and 584 transitions. Second operand has 515 states, 515 states have (on average 2.0485436893203883) internal successors, (1055), 515 states have internal predecessors, (1055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)