/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_copyInitSum2_ground-1.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-15 20:11:56,014 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-15 20:11:56,016 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-15 20:11:56,051 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-15 20:11:56,052 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-15 20:11:56,053 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-15 20:11:56,055 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-15 20:11:56,070 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-15 20:11:56,075 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-15 20:11:56,076 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-15 20:11:56,081 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-15 20:11:56,082 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-10-15 20:11:56,111 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-15 20:11:56,112 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-15 20:11:56,113 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-15 20:11:56,114 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-15 20:11:56,153 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-15 20:11:56,153 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-15 20:11:56,154 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-15 20:11:56,154 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-15 20:11:56,155 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-15 20:11:56,155 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-15 20:11:56,156 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-15 20:11:56,156 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-15 20:11:56,156 INFO L138 SettingsManager]: * Use SBE=true [2022-10-15 20:11:56,157 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-15 20:11:56,160 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-15 20:11:56,160 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-15 20:11:56,160 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-15 20:11:56,160 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-15 20:11:56,161 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-15 20:11:56,161 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-15 20:11:56,161 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-15 20:11:56,161 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-15 20:11:56,161 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-15 20:11:56,161 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-15 20:11:56,161 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-15 20:11:56,161 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-15 20:11:56,162 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-15 20:11:56,162 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-15 20:11:56,162 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-15 20:11:56,162 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-15 20:11:56,162 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:11:56,163 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-15 20:11:56,164 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-15 20:11:56,164 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-15 20:11:56,164 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-15 20:11:56,164 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-15 20:11:56,165 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-15 20:11:56,165 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-15 20:11:56,535 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-15 20:11:56,562 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-15 20:11:56,565 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-15 20:11:56,566 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-15 20:11:56,567 INFO L275 PluginConnector]: CDTParser initialized [2022-10-15 20:11:56,569 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-examples/standard_copyInitSum2_ground-1.i [2022-10-15 20:11:56,657 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bca1696f5/2f352a1d802b4994b03bfdc11e560d50/FLAGaf8e60921 [2022-10-15 20:11:57,251 INFO L306 CDTParser]: Found 1 translation units. [2022-10-15 20:11:57,252 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-examples/standard_copyInitSum2_ground-1.i [2022-10-15 20:11:57,259 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bca1696f5/2f352a1d802b4994b03bfdc11e560d50/FLAGaf8e60921 [2022-10-15 20:11:57,626 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bca1696f5/2f352a1d802b4994b03bfdc11e560d50 [2022-10-15 20:11:57,630 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-15 20:11:57,638 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-15 20:11:57,644 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-15 20:11:57,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-15 20:11:57,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-15 20:11:57,651 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:11:57" (1/1) ... [2022-10-15 20:11:57,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3478106d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:57, skipping insertion in model container [2022-10-15 20:11:57,653 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.10 08:11:57" (1/1) ... [2022-10-15 20:11:57,663 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-15 20:11:57,688 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-15 20:11:57,933 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_copyInitSum2_ground-1.i[823,836] [2022-10-15 20:11:57,957 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:11:57,967 INFO L203 MainTranslator]: Completed pre-run [2022-10-15 20:11:57,984 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_copyInitSum2_ground-1.i[823,836] [2022-10-15 20:11:58,007 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-15 20:11:58,029 INFO L208 MainTranslator]: Completed translation [2022-10-15 20:11:58,030 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58 WrapperNode [2022-10-15 20:11:58,030 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-15 20:11:58,032 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-15 20:11:58,032 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-15 20:11:58,032 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-15 20:11:58,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,060 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,092 INFO L138 Inliner]: procedures = 15, calls = 19, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 79 [2022-10-15 20:11:58,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-15 20:11:58,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-15 20:11:58,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-15 20:11:58,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-15 20:11:58,105 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,105 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,110 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,110 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,128 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,133 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,135 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,136 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-15 20:11:58,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-15 20:11:58,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-15 20:11:58,139 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-15 20:11:58,140 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (1/1) ... [2022-10-15 20:11:58,148 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-15 20:11:58,160 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:58,176 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-15 20:11:58,201 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-15 20:11:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-15 20:11:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-15 20:11:58,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-10-15 20:11:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-10-15 20:11:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-15 20:11:58,243 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-15 20:11:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-10-15 20:11:58,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-15 20:11:58,326 INFO L235 CfgBuilder]: Building ICFG [2022-10-15 20:11:58,329 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-15 20:11:58,557 INFO L276 CfgBuilder]: Performing block encoding [2022-10-15 20:11:58,567 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-15 20:11:58,568 INFO L300 CfgBuilder]: Removed 4 assume(true) statements. [2022-10-15 20:11:58,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:11:58 BoogieIcfgContainer [2022-10-15 20:11:58,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-15 20:11:58,590 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-15 20:11:58,590 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-15 20:11:58,600 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-15 20:11:58,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 15.10 08:11:57" (1/3) ... [2022-10-15 20:11:58,604 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5c8898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:11:58, skipping insertion in model container [2022-10-15 20:11:58,604 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.10 08:11:58" (2/3) ... [2022-10-15 20:11:58,605 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c5c8898 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.10 08:11:58, skipping insertion in model container [2022-10-15 20:11:58,605 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.10 08:11:58" (3/3) ... [2022-10-15 20:11:58,609 INFO L112 eAbstractionObserver]: Analyzing ICFG standard_copyInitSum2_ground-1.i [2022-10-15 20:11:58,632 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-15 20:11:58,633 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 12 error locations. [2022-10-15 20:11:58,758 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-15 20:11:58,776 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;@53f9ec4f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-15 20:11:58,777 INFO L358 AbstractCegarLoop]: Starting to check reachability of 12 error locations. [2022-10-15 20:11:58,789 INFO L276 IsEmpty]: Start isEmpty. Operand has 43 states, 30 states have (on average 1.7) internal successors, (51), 42 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:58,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2022-10-15 20:11:58,797 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:58,798 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1] [2022-10-15 20:11:58,800 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:11:58,817 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:58,818 INFO L85 PathProgramCache]: Analyzing trace with hash 925796, now seen corresponding path program 1 times [2022-10-15 20:11:58,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:58,830 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1924281902] [2022-10-15 20:11:58,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:58,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:59,203 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:11:59,204 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:59,204 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1924281902] [2022-10-15 20:11:59,205 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1924281902] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:59,206 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:59,206 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:11:59,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678569420] [2022-10-15 20:11:59,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:59,215 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:11:59,216 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:59,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:11:59,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:11:59,255 INFO L87 Difference]: Start difference. First operand has 43 states, 30 states have (on average 1.7) internal successors, (51), 42 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:59,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:59,347 INFO L93 Difference]: Finished difference Result 100 states and 120 transitions. [2022-10-15 20:11:59,352 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:11:59,354 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 4 [2022-10-15 20:11:59,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:59,367 INFO L225 Difference]: With dead ends: 100 [2022-10-15 20:11:59,368 INFO L226 Difference]: Without dead ends: 57 [2022-10-15 20:11:59,373 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:11:59,380 INFO L413 NwaCegarLoop]: 35 mSDtfsCounter, 15 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 29 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 35 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 29 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:59,383 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 60 Invalid, 35 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 29 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:11:59,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57 states. [2022-10-15 20:11:59,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57 to 43. [2022-10-15 20:11:59,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 31 states have (on average 1.4838709677419355) internal successors, (46), 42 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:59,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 46 transitions. [2022-10-15 20:11:59,439 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 46 transitions. Word has length 4 [2022-10-15 20:11:59,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:59,440 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 46 transitions. [2022-10-15 20:11:59,441 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 2.0) internal successors, (4), 3 states have internal predecessors, (4), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:59,441 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 46 transitions. [2022-10-15 20:11:59,442 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-10-15 20:11:59,443 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:59,443 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-10-15 20:11:59,443 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-15 20:11:59,444 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:11:59,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:59,445 INFO L85 PathProgramCache]: Analyzing trace with hash 1810629419, now seen corresponding path program 1 times [2022-10-15 20:11:59,445 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:59,446 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204102805] [2022-10-15 20:11:59,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:59,447 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:59,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:59,554 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:11:59,555 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:59,555 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204102805] [2022-10-15 20:11:59,556 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204102805] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:59,556 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:11:59,556 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-15 20:11:59,556 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [970763869] [2022-10-15 20:11:59,557 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:59,558 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-15 20:11:59,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:59,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-15 20:11:59,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:11:59,560 INFO L87 Difference]: Start difference. First operand 43 states and 46 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:59,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:59,607 INFO L93 Difference]: Finished difference Result 43 states and 46 transitions. [2022-10-15 20:11:59,609 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-15 20:11:59,609 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 7 [2022-10-15 20:11:59,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:59,610 INFO L225 Difference]: With dead ends: 43 [2022-10-15 20:11:59,610 INFO L226 Difference]: Without dead ends: 42 [2022-10-15 20:11:59,611 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-15 20:11:59,615 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 16 mSDsluCounter, 14 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:59,616 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 42 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:11:59,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-15 20:11:59,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-15 20:11:59,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 31 states have (on average 1.4516129032258065) internal successors, (45), 41 states have internal predecessors, (45), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:59,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 45 transitions. [2022-10-15 20:11:59,634 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 45 transitions. Word has length 7 [2022-10-15 20:11:59,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:59,635 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 45 transitions. [2022-10-15 20:11:59,636 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:59,636 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 45 transitions. [2022-10-15 20:11:59,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2022-10-15 20:11:59,638 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:59,638 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1] [2022-10-15 20:11:59,639 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-15 20:11:59,639 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:11:59,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:11:59,643 INFO L85 PathProgramCache]: Analyzing trace with hash 294937186, now seen corresponding path program 1 times [2022-10-15 20:11:59,643 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:11:59,643 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2041806219] [2022-10-15 20:11:59,643 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:59,644 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:11:59,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:59,733 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:11:59,733 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:11:59,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2041806219] [2022-10-15 20:11:59,734 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2041806219] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:11:59,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1308669789] [2022-10-15 20:11:59,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:11:59,735 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:11:59,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:11:59,737 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:11:59,751 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-15 20:11:59,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:11:59,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 63 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:11:59,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:11:59,871 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:11:59,871 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:11:59,872 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1308669789] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:11:59,872 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:11:59,872 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [3] total 4 [2022-10-15 20:11:59,873 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [25091399] [2022-10-15 20:11:59,873 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:11:59,873 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:11:59,873 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:11:59,874 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:11:59,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:11:59,875 INFO L87 Difference]: Start difference. First operand 42 states and 45 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:59,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:11:59,932 INFO L93 Difference]: Finished difference Result 56 states and 59 transitions. [2022-10-15 20:11:59,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:11:59,933 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2022-10-15 20:11:59,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:11:59,934 INFO L225 Difference]: With dead ends: 56 [2022-10-15 20:11:59,935 INFO L226 Difference]: Without dead ends: 55 [2022-10-15 20:11:59,935 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:11:59,937 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 42 mSDsluCounter, 13 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:11:59,938 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 40 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:11:59,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2022-10-15 20:11:59,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 39. [2022-10-15 20:11:59,944 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39 states, 29 states have (on average 1.4482758620689655) internal successors, (42), 38 states have internal predecessors, (42), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:59,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2022-10-15 20:11:59,945 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 8 [2022-10-15 20:11:59,946 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:11:59,946 INFO L495 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2022-10-15 20:11:59,946 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:11:59,946 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2022-10-15 20:11:59,947 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-10-15 20:11:59,947 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:11:59,947 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:11:59,984 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:00,162 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:00,163 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:00,165 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:00,165 INFO L85 PathProgramCache]: Analyzing trace with hash -34860664, now seen corresponding path program 1 times [2022-10-15 20:12:00,166 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:00,166 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [755975173] [2022-10-15 20:12:00,166 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:00,166 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:00,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:00,298 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:12:00,299 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:00,299 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [755975173] [2022-10-15 20:12:00,299 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [755975173] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:00,300 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1210275248] [2022-10-15 20:12:00,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:00,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:00,300 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:00,304 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:00,326 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-15 20:12:00,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:00,373 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-15 20:12:00,375 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:00,396 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:12:00,396 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:00,442 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-15 20:12:00,442 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1210275248] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:00,442 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:00,443 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2022-10-15 20:12:00,443 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [611534737] [2022-10-15 20:12:00,446 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:00,448 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-15 20:12:00,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:00,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-15 20:12:00,453 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 20:12:00,453 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:00,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:00,552 INFO L93 Difference]: Finished difference Result 95 states and 103 transitions. [2022-10-15 20:12:00,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-15 20:12:00,553 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-10-15 20:12:00,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:00,555 INFO L225 Difference]: With dead ends: 95 [2022-10-15 20:12:00,555 INFO L226 Difference]: Without dead ends: 62 [2022-10-15 20:12:00,556 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2022-10-15 20:12:00,557 INFO L413 NwaCegarLoop]: 28 mSDtfsCounter, 34 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:00,558 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 88 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:00,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 62 states. [2022-10-15 20:12:00,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 62 to 48. [2022-10-15 20:12:00,566 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 38 states have (on average 1.3421052631578947) internal successors, (51), 47 states have internal predecessors, (51), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:00,567 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 51 transitions. [2022-10-15 20:12:00,567 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 51 transitions. Word has length 10 [2022-10-15 20:12:00,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:00,567 INFO L495 AbstractCegarLoop]: Abstraction has 48 states and 51 transitions. [2022-10-15 20:12:00,568 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 7 states have internal predecessors, (19), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:00,568 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 51 transitions. [2022-10-15 20:12:00,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-15 20:12:00,569 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:00,569 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:00,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:00,784 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable3 [2022-10-15 20:12:00,785 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:00,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:00,787 INFO L85 PathProgramCache]: Analyzing trace with hash -1560493969, now seen corresponding path program 2 times [2022-10-15 20:12:00,787 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:00,788 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745970349] [2022-10-15 20:12:00,788 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:00,789 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:00,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:00,968 INFO L134 CoverageAnalysis]: Checked inductivity of 22 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-15 20:12:00,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:00,968 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745970349] [2022-10-15 20:12:00,969 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745970349] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:00,969 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:12:00,969 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:12:00,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792760780] [2022-10-15 20:12:00,969 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:00,970 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:12:00,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:00,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:12:00,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:12:00,974 INFO L87 Difference]: Start difference. First operand 48 states and 51 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) [2022-10-15 20:12:01,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:01,033 INFO L93 Difference]: Finished difference Result 62 states and 65 transitions. [2022-10-15 20:12:01,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:12:01,034 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 19 [2022-10-15 20:12:01,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:01,035 INFO L225 Difference]: With dead ends: 62 [2022-10-15 20:12:01,035 INFO L226 Difference]: Without dead ends: 60 [2022-10-15 20:12:01,036 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:12:01,037 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 14 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:01,038 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 69 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:12:01,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60 states. [2022-10-15 20:12:01,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60 to 51. [2022-10-15 20:12:01,044 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 50 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:01,045 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 54 transitions. [2022-10-15 20:12:01,046 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 54 transitions. Word has length 19 [2022-10-15 20:12:01,046 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:01,046 INFO L495 AbstractCegarLoop]: Abstraction has 51 states and 54 transitions. [2022-10-15 20:12:01,046 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) [2022-10-15 20:12:01,047 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 54 transitions. [2022-10-15 20:12:01,047 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-15 20:12:01,047 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:01,048 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:01,048 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-15 20:12:01,048 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:01,049 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:01,049 INFO L85 PathProgramCache]: Analyzing trace with hash 1557557675, now seen corresponding path program 1 times [2022-10-15 20:12:01,049 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:01,049 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374582488] [2022-10-15 20:12:01,050 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:01,050 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:01,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:01,118 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 23 trivial. 0 not checked. [2022-10-15 20:12:01,119 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:01,119 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374582488] [2022-10-15 20:12:01,119 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [374582488] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:01,120 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-15 20:12:01,120 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-15 20:12:01,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966889227] [2022-10-15 20:12:01,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:01,121 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:12:01,121 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:01,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:12:01,122 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-15 20:12:01,122 INFO L87 Difference]: Start difference. First operand 51 states and 54 transitions. Second operand has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:01,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:01,169 INFO L93 Difference]: Finished difference Result 51 states and 54 transitions. [2022-10-15 20:12:01,169 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:12:01,170 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 23 [2022-10-15 20:12:01,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:01,171 INFO L225 Difference]: With dead ends: 51 [2022-10-15 20:12:01,171 INFO L226 Difference]: Without dead ends: 50 [2022-10-15 20:12:01,171 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-10-15 20:12:01,173 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 16 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:01,173 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 61 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:12:01,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2022-10-15 20:12:01,179 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2022-10-15 20:12:01,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 50 states, 41 states have (on average 1.2926829268292683) internal successors, (53), 49 states have internal predecessors, (53), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:01,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2022-10-15 20:12:01,181 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 23 [2022-10-15 20:12:01,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:01,181 INFO L495 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2022-10-15 20:12:01,181 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.666666666666667) internal successors, (14), 4 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:01,182 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2022-10-15 20:12:01,182 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-15 20:12:01,183 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:01,183 INFO L195 NwaCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:01,183 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-10-15 20:12:01,184 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:01,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:01,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1039596286, now seen corresponding path program 1 times [2022-10-15 20:12:01,185 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:01,185 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253699839] [2022-10-15 20:12:01,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:01,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:01,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:01,329 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2022-10-15 20:12:01,330 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:01,334 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253699839] [2022-10-15 20:12:01,334 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253699839] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:01,335 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2096636398] [2022-10-15 20:12:01,335 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:01,335 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:01,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:01,337 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:01,360 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-15 20:12:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:01,410 INFO L263 TraceCheckSpWp]: Trace formula consists of 104 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 20:12:01,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:01,463 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:12:01,463 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:01,540 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-15 20:12:01,541 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2096636398] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:01,541 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:01,541 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 7, 7] total 14 [2022-10-15 20:12:01,541 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463711696] [2022-10-15 20:12:01,542 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:01,542 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-15 20:12:01,542 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:01,543 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-15 20:12:01,543 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=102, Unknown=0, NotChecked=0, Total=182 [2022-10-15 20:12:01,544 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:01,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:01,654 INFO L93 Difference]: Finished difference Result 117 states and 129 transitions. [2022-10-15 20:12:01,654 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-10-15 20:12:01,655 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 0 states have call successors, (0), 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 [2022-10-15 20:12:01,655 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:01,660 INFO L225 Difference]: With dead ends: 117 [2022-10-15 20:12:01,660 INFO L226 Difference]: Without dead ends: 82 [2022-10-15 20:12:01,661 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=116, Unknown=0, NotChecked=0, Total=210 [2022-10-15 20:12:01,666 INFO L413 NwaCegarLoop]: 25 mSDtfsCounter, 92 mSDsluCounter, 63 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 88 SdHoareTripleChecker+Invalid, 106 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:01,667 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 88 Invalid, 106 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:01,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2022-10-15 20:12:01,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 69. [2022-10-15 20:12:01,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 69 states, 60 states have (on average 1.2) internal successors, (72), 68 states have internal predecessors, (72), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:01,691 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 69 states to 69 states and 72 transitions. [2022-10-15 20:12:01,691 INFO L78 Accepts]: Start accepts. Automaton has 69 states and 72 transitions. Word has length 24 [2022-10-15 20:12:01,691 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:01,691 INFO L495 AbstractCegarLoop]: Abstraction has 69 states and 72 transitions. [2022-10-15 20:12:01,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.5) internal successors, (49), 14 states have internal predecessors, (49), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:01,693 INFO L276 IsEmpty]: Start isEmpty. Operand 69 states and 72 transitions. [2022-10-15 20:12:01,694 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2022-10-15 20:12:01,694 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:01,695 INFO L195 NwaCegarLoop]: trace histogram [10, 10, 10, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:01,719 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:01,906 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:01,907 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:01,908 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:01,909 INFO L85 PathProgramCache]: Analyzing trace with hash 464539604, now seen corresponding path program 1 times [2022-10-15 20:12:01,909 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:01,910 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1931856788] [2022-10-15 20:12:01,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:01,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:01,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:02,237 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:02,238 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:02,238 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1931856788] [2022-10-15 20:12:02,238 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1931856788] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:02,239 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428201083] [2022-10-15 20:12:02,239 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:02,239 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:02,239 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:02,240 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:02,265 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-15 20:12:02,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:02,322 INFO L263 TraceCheckSpWp]: Trace formula consists of 160 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-15 20:12:02,324 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:02,394 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:02,394 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:02,607 INFO L134 CoverageAnalysis]: Checked inductivity of 149 backedges. 0 proven. 145 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:02,607 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428201083] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:02,607 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:02,607 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 13, 13] total 25 [2022-10-15 20:12:02,608 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [63525738] [2022-10-15 20:12:02,608 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:02,609 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-15 20:12:02,609 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:02,609 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-15 20:12:02,610 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-15 20:12:02,610 INFO L87 Difference]: Start difference. First operand 69 states and 72 transitions. Second operand has 25 states, 25 states have (on average 3.0) internal successors, (75), 25 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:02,757 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:02,757 INFO L93 Difference]: Finished difference Result 150 states and 167 transitions. [2022-10-15 20:12:02,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-15 20:12:02,758 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 25 states have internal predecessors, (75), 0 states have call successors, (0), 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 42 [2022-10-15 20:12:02,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:02,759 INFO L225 Difference]: With dead ends: 150 [2022-10-15 20:12:02,759 INFO L226 Difference]: Without dead ends: 114 [2022-10-15 20:12:02,760 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 72 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=300, Invalid=300, Unknown=0, NotChecked=0, Total=600 [2022-10-15 20:12:02,761 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 137 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 119 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 119 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:02,762 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 98 Invalid, 147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 119 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-15 20:12:02,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2022-10-15 20:12:02,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 105. [2022-10-15 20:12:02,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 105 states, 96 states have (on average 1.125) internal successors, (108), 104 states have internal predecessors, (108), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:02,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 108 transitions. [2022-10-15 20:12:02,773 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 108 transitions. Word has length 42 [2022-10-15 20:12:02,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:02,773 INFO L495 AbstractCegarLoop]: Abstraction has 105 states and 108 transitions. [2022-10-15 20:12:02,773 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 25 states have (on average 3.0) internal successors, (75), 25 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:02,774 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 108 transitions. [2022-10-15 20:12:02,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2022-10-15 20:12:02,776 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:02,776 INFO L195 NwaCegarLoop]: trace histogram [22, 22, 22, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:02,818 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:02,991 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:02,992 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:02,992 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:02,993 INFO L85 PathProgramCache]: Analyzing trace with hash 670678932, now seen corresponding path program 2 times [2022-10-15 20:12:02,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:02,993 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [106967703] [2022-10-15 20:12:02,994 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:02,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:03,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:03,740 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:03,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:03,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [106967703] [2022-10-15 20:12:03,740 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [106967703] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:03,740 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [779962517] [2022-10-15 20:12:03,741 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:12:03,741 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:03,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:03,742 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:03,745 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-15 20:12:03,872 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:12:03,873 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:03,874 INFO L263 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-15 20:12:03,882 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:04,017 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:04,018 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:04,793 INFO L134 CoverageAnalysis]: Checked inductivity of 719 backedges. 0 proven. 715 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:04,794 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [779962517] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:04,794 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:04,794 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 25, 25] total 49 [2022-10-15 20:12:04,794 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [979778117] [2022-10-15 20:12:04,794 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:04,795 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 49 states [2022-10-15 20:12:04,795 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:04,797 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 49 interpolants. [2022-10-15 20:12:04,798 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 20:12:04,799 INFO L87 Difference]: Start difference. First operand 105 states and 108 transitions. Second operand has 49 states, 49 states have (on average 3.0) internal successors, (147), 49 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) [2022-10-15 20:12:05,067 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:05,067 INFO L93 Difference]: Finished difference Result 222 states and 251 transitions. [2022-10-15 20:12:05,068 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 48 states. [2022-10-15 20:12:05,068 INFO L78 Accepts]: Start accepts. Automaton has has 49 states, 49 states have (on average 3.0) internal successors, (147), 49 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 78 [2022-10-15 20:12:05,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:05,070 INFO L225 Difference]: With dead ends: 222 [2022-10-15 20:12:05,070 INFO L226 Difference]: Without dead ends: 186 [2022-10-15 20:12:05,072 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 179 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 88 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=1176, Invalid=1176, Unknown=0, NotChecked=0, Total=2352 [2022-10-15 20:12:05,073 INFO L413 NwaCegarLoop]: 27 mSDtfsCounter, 187 mSDsluCounter, 90 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 46 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 187 SdHoareTripleChecker+Valid, 117 SdHoareTripleChecker+Invalid, 250 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 46 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:05,073 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [187 Valid, 117 Invalid, 250 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [46 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-15 20:12:05,074 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 186 states. [2022-10-15 20:12:05,085 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 186 to 177. [2022-10-15 20:12:05,085 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 168 states have (on average 1.0714285714285714) internal successors, (180), 176 states have internal predecessors, (180), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:05,087 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 180 transitions. [2022-10-15 20:12:05,087 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 180 transitions. Word has length 78 [2022-10-15 20:12:05,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:05,088 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 180 transitions. [2022-10-15 20:12:05,088 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 49 states, 49 states have (on average 3.0) internal successors, (147), 49 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) [2022-10-15 20:12:05,088 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 180 transitions. [2022-10-15 20:12:05,090 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 151 [2022-10-15 20:12:05,091 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:05,091 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:05,126 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:05,306 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:05,307 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:05,308 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:05,308 INFO L85 PathProgramCache]: Analyzing trace with hash 1672871700, now seen corresponding path program 3 times [2022-10-15 20:12:05,309 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:05,309 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [721091050] [2022-10-15 20:12:05,309 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:05,310 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:08,130 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-15 20:12:08,131 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:08,131 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [721091050] [2022-10-15 20:12:08,131 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [721091050] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:08,132 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [375089719] [2022-10-15 20:12:08,132 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:12:08,132 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:08,132 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:08,133 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:08,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-15 20:12:08,217 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-15 20:12:08,217 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:08,218 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-15 20:12:08,222 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:08,283 INFO L134 CoverageAnalysis]: Checked inductivity of 3155 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3151 trivial. 0 not checked. [2022-10-15 20:12:08,284 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-15 20:12:08,284 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [375089719] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-15 20:12:08,284 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-15 20:12:08,284 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [49] total 51 [2022-10-15 20:12:08,284 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [169101957] [2022-10-15 20:12:08,285 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-15 20:12:08,285 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-15 20:12:08,285 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:08,286 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-15 20:12:08,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1181, Invalid=1369, Unknown=0, NotChecked=0, Total=2550 [2022-10-15 20:12:08,287 INFO L87 Difference]: Start difference. First operand 177 states and 180 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:08,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:08,346 INFO L93 Difference]: Finished difference Result 177 states and 180 transitions. [2022-10-15 20:12:08,346 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-15 20:12:08,347 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 150 [2022-10-15 20:12:08,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:08,348 INFO L225 Difference]: With dead ends: 177 [2022-10-15 20:12:08,349 INFO L226 Difference]: Without dead ends: 176 [2022-10-15 20:12:08,350 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 199 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 92 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=1185, Invalid=1467, Unknown=0, NotChecked=0, Total=2652 [2022-10-15 20:12:08,351 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 29 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 42 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:08,352 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 42 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-15 20:12:08,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 176 states. [2022-10-15 20:12:08,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 176 to 176. [2022-10-15 20:12:08,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 168 states have (on average 1.0654761904761905) internal successors, (179), 175 states have internal predecessors, (179), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:08,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 179 transitions. [2022-10-15 20:12:08,366 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 179 transitions. Word has length 150 [2022-10-15 20:12:08,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:08,366 INFO L495 AbstractCegarLoop]: Abstraction has 176 states and 179 transitions. [2022-10-15 20:12:08,367 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:08,367 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 179 transitions. [2022-10-15 20:12:08,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-15 20:12:08,369 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:08,369 INFO L195 NwaCegarLoop]: trace histogram [46, 46, 46, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:08,408 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:08,583 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:08,584 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:08,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:08,585 INFO L85 PathProgramCache]: Analyzing trace with hash -1949148574, now seen corresponding path program 2 times [2022-10-15 20:12:08,585 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:08,586 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1011276336] [2022-10-15 20:12:08,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:08,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:10,826 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:12:10,826 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:10,826 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1011276336] [2022-10-15 20:12:10,826 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1011276336] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:10,827 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1422940732] [2022-10-15 20:12:10,827 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-15 20:12:10,827 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:10,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:10,828 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:10,851 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-15 20:12:10,998 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-15 20:12:10,998 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:11,001 INFO L263 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-15 20:12:11,020 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:11,230 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:12:11,231 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:14,231 INFO L134 CoverageAnalysis]: Checked inductivity of 3157 backedges. 0 proven. 3151 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:12:14,231 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1422940732] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:14,231 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:14,231 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [49, 49, 49] total 97 [2022-10-15 20:12:14,232 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492594282] [2022-10-15 20:12:14,232 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:14,233 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 97 states [2022-10-15 20:12:14,233 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:14,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 97 interpolants. [2022-10-15 20:12:14,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-10-15 20:12:14,240 INFO L87 Difference]: Start difference. First operand 176 states and 179 transitions. Second operand has 97 states, 97 states have (on average 3.0309278350515463) internal successors, (294), 97 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:14,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:14,902 INFO L93 Difference]: Finished difference Result 364 states and 417 transitions. [2022-10-15 20:12:14,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2022-10-15 20:12:14,903 INFO L78 Accepts]: Start accepts. Automaton has has 97 states, 97 states have (on average 3.0309278350515463) internal successors, (294), 97 states have internal predecessors, (294), 0 states have call successors, (0), 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 154 [2022-10-15 20:12:14,904 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:14,906 INFO L225 Difference]: With dead ends: 364 [2022-10-15 20:12:14,906 INFO L226 Difference]: Without dead ends: 329 [2022-10-15 20:12:14,909 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 355 GetRequests, 260 SyntacticMatches, 0 SemanticMatches, 95 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 184 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=4656, Invalid=4656, Unknown=0, NotChecked=0, Total=9312 [2022-10-15 20:12:14,910 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 270 mSDsluCounter, 108 mSDsCounter, 0 mSdLazyCounter, 369 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 270 SdHoareTripleChecker+Valid, 134 SdHoareTripleChecker+Invalid, 435 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 369 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:14,911 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [270 Valid, 134 Invalid, 435 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 369 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:12:14,912 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2022-10-15 20:12:14,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 320. [2022-10-15 20:12:14,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 320 states, 312 states have (on average 1.0352564102564104) internal successors, (323), 319 states have internal predecessors, (323), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:14,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 320 states to 320 states and 323 transitions. [2022-10-15 20:12:14,930 INFO L78 Accepts]: Start accepts. Automaton has 320 states and 323 transitions. Word has length 154 [2022-10-15 20:12:14,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:14,930 INFO L495 AbstractCegarLoop]: Abstraction has 320 states and 323 transitions. [2022-10-15 20:12:14,931 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 97 states, 97 states have (on average 3.0309278350515463) internal successors, (294), 97 states have internal predecessors, (294), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:14,931 INFO L276 IsEmpty]: Start isEmpty. Operand 320 states and 323 transitions. [2022-10-15 20:12:14,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2022-10-15 20:12:14,935 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:14,935 INFO L195 NwaCegarLoop]: trace histogram [94, 94, 94, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:14,973 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:15,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:15,150 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:15,151 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:15,151 INFO L85 PathProgramCache]: Analyzing trace with hash -451356318, now seen corresponding path program 3 times [2022-10-15 20:12:15,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:15,152 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1008492355] [2022-10-15 20:12:15,152 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:15,152 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:15,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:23,469 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 0 proven. 13207 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-10-15 20:12:23,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:23,469 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1008492355] [2022-10-15 20:12:23,470 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1008492355] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:23,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1251301843] [2022-10-15 20:12:23,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-15 20:12:23,470 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:23,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:23,471 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:23,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-15 20:12:23,607 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-15 20:12:23,608 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:23,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 97 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-15 20:12:23,615 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:23,738 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13207 trivial. 0 not checked. [2022-10-15 20:12:23,738 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:24,122 INFO L134 CoverageAnalysis]: Checked inductivity of 13213 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 13207 trivial. 0 not checked. [2022-10-15 20:12:24,122 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1251301843] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:24,123 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:24,123 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [97, 7, 7] total 105 [2022-10-15 20:12:24,123 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1903915047] [2022-10-15 20:12:24,123 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:24,124 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 105 states [2022-10-15 20:12:24,125 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:24,127 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 105 interpolants. [2022-10-15 20:12:24,131 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5064, Invalid=5856, Unknown=0, NotChecked=0, Total=10920 [2022-10-15 20:12:24,131 INFO L87 Difference]: Start difference. First operand 320 states and 323 transitions. Second operand has 105 states, 105 states have (on average 3.038095238095238) internal successors, (319), 105 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:24,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:24,906 INFO L93 Difference]: Finished difference Result 388 states and 400 transitions. [2022-10-15 20:12:24,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 104 states. [2022-10-15 20:12:24,907 INFO L78 Accepts]: Start accepts. Automaton has has 105 states, 105 states have (on average 3.038095238095238) internal successors, (319), 105 states have internal predecessors, (319), 0 states have call successors, (0), 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 298 [2022-10-15 20:12:24,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:24,909 INFO L225 Difference]: With dead ends: 388 [2022-10-15 20:12:24,909 INFO L226 Difference]: Without dead ends: 353 [2022-10-15 20:12:24,914 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 695 GetRequests, 588 SyntacticMatches, 0 SemanticMatches, 107 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 595 ImplicationChecksByTransitivity, 4.4s TimeCoverageRelationStatistics Valid=5382, Invalid=6390, Unknown=0, NotChecked=0, Total=11772 [2022-10-15 20:12:24,915 INFO L413 NwaCegarLoop]: 24 mSDtfsCounter, 472 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 422 mSolverCounterSat, 220 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 472 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 642 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 220 IncrementalHoareTripleChecker+Valid, 422 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:24,915 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [472 Valid, 147 Invalid, 642 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [220 Valid, 422 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-15 20:12:24,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 353 states. [2022-10-15 20:12:24,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 353 to 344. [2022-10-15 20:12:24,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 336 states have (on average 1.0327380952380953) internal successors, (347), 343 states have internal predecessors, (347), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:24,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 347 transitions. [2022-10-15 20:12:24,936 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 347 transitions. Word has length 298 [2022-10-15 20:12:24,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:24,937 INFO L495 AbstractCegarLoop]: Abstraction has 344 states and 347 transitions. [2022-10-15 20:12:24,938 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 105 states, 105 states have (on average 3.038095238095238) internal successors, (319), 105 states have internal predecessors, (319), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:24,938 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 347 transitions. [2022-10-15 20:12:24,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2022-10-15 20:12:24,942 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:24,943 INFO L195 NwaCegarLoop]: trace histogram [98, 98, 98, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:24,969 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:25,154 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-10-15 20:12:25,155 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:25,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:25,156 INFO L85 PathProgramCache]: Analyzing trace with hash -1142792338, now seen corresponding path program 4 times [2022-10-15 20:12:25,157 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:25,157 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [154276744] [2022-10-15 20:12:25,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:25,157 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:25,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-15 20:12:33,340 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14357 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-15 20:12:33,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-15 20:12:33,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [154276744] [2022-10-15 20:12:33,341 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [154276744] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-15 20:12:33,341 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1448533659] [2022-10-15 20:12:33,341 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-15 20:12:33,341 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-15 20:12:33,342 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-15 20:12:33,342 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-15 20:12:33,345 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-15 20:12:33,622 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-15 20:12:33,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-15 20:12:33,630 INFO L263 TraceCheckSpWp]: Trace formula consists of 994 conjuncts, 100 conjunts are in the unsatisfiable core [2022-10-15 20:12:33,640 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-15 20:12:34,101 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14357 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-15 20:12:34,101 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-15 20:12:47,386 INFO L134 CoverageAnalysis]: Checked inductivity of 14402 backedges. 0 proven. 14357 refuted. 0 times theorem prover too weak. 45 trivial. 0 not checked. [2022-10-15 20:12:47,387 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1448533659] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-15 20:12:47,387 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-15 20:12:47,387 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [101, 101, 101] total 201 [2022-10-15 20:12:47,388 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1031644902] [2022-10-15 20:12:47,388 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-15 20:12:47,389 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 201 states [2022-10-15 20:12:47,389 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-15 20:12:47,395 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 201 interpolants. [2022-10-15 20:12:47,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20100, Invalid=20100, Unknown=0, NotChecked=0, Total=40200 [2022-10-15 20:12:47,405 INFO L87 Difference]: Start difference. First operand 344 states and 347 transitions. Second operand has 201 states, 201 states have (on average 3.014925373134328) internal successors, (606), 201 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:48,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-15 20:12:48,929 INFO L93 Difference]: Finished difference Result 700 states and 805 transitions. [2022-10-15 20:12:48,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 200 states. [2022-10-15 20:12:48,930 INFO L78 Accepts]: Start accepts. Automaton has has 201 states, 201 states have (on average 3.014925373134328) internal successors, (606), 201 states have internal predecessors, (606), 0 states have call successors, (0), 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 322 [2022-10-15 20:12:48,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-15 20:12:48,934 INFO L225 Difference]: With dead ends: 700 [2022-10-15 20:12:48,934 INFO L226 Difference]: Without dead ends: 653 [2022-10-15 20:12:48,939 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 743 GetRequests, 544 SyntacticMatches, 0 SemanticMatches, 199 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 392 ImplicationChecksByTransitivity, 16.9s TimeCoverageRelationStatistics Valid=20100, Invalid=20100, Unknown=0, NotChecked=0, Total=40200 [2022-10-15 20:12:48,943 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 664 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 655 mSolverCounterSat, 118 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 664 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 773 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 118 IncrementalHoareTripleChecker+Valid, 655 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2022-10-15 20:12:48,944 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [664 Valid, 98 Invalid, 773 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [118 Valid, 655 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2022-10-15 20:12:48,946 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653 states. [2022-10-15 20:12:48,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653 to 644. [2022-10-15 20:12:48,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 644 states, 636 states have (on average 1.0172955974842768) internal successors, (647), 643 states have internal predecessors, (647), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:48,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 644 states to 644 states and 647 transitions. [2022-10-15 20:12:48,976 INFO L78 Accepts]: Start accepts. Automaton has 644 states and 647 transitions. Word has length 322 [2022-10-15 20:12:48,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-15 20:12:48,976 INFO L495 AbstractCegarLoop]: Abstraction has 644 states and 647 transitions. [2022-10-15 20:12:48,977 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 201 states, 201 states have (on average 3.014925373134328) internal successors, (606), 201 states have internal predecessors, (606), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-15 20:12:48,977 INFO L276 IsEmpty]: Start isEmpty. Operand 644 states and 647 transitions. [2022-10-15 20:12:48,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2022-10-15 20:12:48,992 INFO L187 NwaCegarLoop]: Found error trace [2022-10-15 20:12:48,992 INFO L195 NwaCegarLoop]: trace histogram [198, 198, 198, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-15 20:12:49,029 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-15 20:12:49,205 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-15 20:12:49,206 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 9 more)] === [2022-10-15 20:12:49,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-15 20:12:49,207 INFO L85 PathProgramCache]: Analyzing trace with hash 431727278, now seen corresponding path program 5 times [2022-10-15 20:12:49,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-15 20:12:49,208 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [620789193] [2022-10-15 20:12:49,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-15 20:12:49,208 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-15 20:12:49,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat