/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/ldv-memsafety/memleaks_test18.i -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 13:46:02,079 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 13:46:02,083 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 13:46:02,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-10-16 13:46:02,169 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 13:46:02,173 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 13:46:02,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 13:46:02,177 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 13:46:02,178 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 13:46:02,189 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 13:46:02,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 13:46:02,203 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 13:46:02,206 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 13:46:02,209 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 13:46:02,214 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 13:46:02,221 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 13:46:02,231 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 13:46:02,247 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 13:46:02,248 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 13:46:02,248 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 13:46:02,249 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Overflow-32bit-Automizer_Default.epf [2022-10-16 13:46:02,311 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 13:46:02,311 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 13:46:02,312 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 13:46:02,312 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 13:46:02,314 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 13:46:02,314 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 13:46:02,317 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 13:46:02,317 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 13:46:02,318 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 13:46:02,318 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 13:46:02,319 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 13:46:02,319 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 13:46:02,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 13:46:02,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 13:46:02,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 13:46:02,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 13:46:02,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 13:46:02,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 13:46:02,321 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 13:46:02,321 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 13:46:02,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 13:46:02,321 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 13:46:02,322 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 13:46:02,322 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 13:46:02,322 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 13:46:02,322 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 13:46:02,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:46:02,323 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 13:46:02,323 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 13:46:02,323 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 13:46:02,323 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 13:46:02,323 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 13:46:02,324 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 13:46:02,324 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 13:46:02,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 13:46:02,751 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 13:46:02,755 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 13:46:02,756 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 13:46:02,760 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 13:46:02,762 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2022-10-16 13:46:02,851 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3a3d409f/2dd7c77227904ba5ae0ce928091392ac/FLAG6dc3e10c9 [2022-10-16 13:46:03,544 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 13:46:03,548 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test18.i [2022-10-16 13:46:03,578 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3a3d409f/2dd7c77227904ba5ae0ce928091392ac/FLAG6dc3e10c9 [2022-10-16 13:46:03,760 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3a3d409f/2dd7c77227904ba5ae0ce928091392ac [2022-10-16 13:46:03,765 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 13:46:03,773 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 13:46:03,779 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 13:46:03,780 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 13:46:03,785 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 13:46:03,786 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:46:03" (1/1) ... [2022-10-16 13:46:03,790 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@43612b29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:03, skipping insertion in model container [2022-10-16 13:46:03,790 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 01:46:03" (1/1) ... [2022-10-16 13:46:03,801 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 13:46:03,892 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 13:46:04,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:46:04,626 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 13:46:04,740 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 13:46:04,805 INFO L208 MainTranslator]: Completed translation [2022-10-16 13:46:04,806 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04 WrapperNode [2022-10-16 13:46:04,808 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 13:46:04,810 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 13:46:04,810 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 13:46:04,811 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 13:46:04,820 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,871 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,904 INFO L138 Inliner]: procedures = 164, calls = 73, calls flagged for inlining = 21, calls inlined = 3, statements flattened = 51 [2022-10-16 13:46:04,904 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 13:46:04,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 13:46:04,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 13:46:04,906 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 13:46:04,917 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,917 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,931 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,942 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,953 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,955 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,960 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,963 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 13:46:04,964 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 13:46:04,964 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 13:46:04,964 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 13:46:04,965 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (1/1) ... [2022-10-16 13:46:04,973 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 13:46:04,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:05,008 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-10-16 13:46:05,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-10-16 13:46:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2022-10-16 13:46:05,077 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2022-10-16 13:46:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-10-16 13:46:05,077 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 13:46:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2022-10-16 13:46:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2022-10-16 13:46:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-10-16 13:46:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2022-10-16 13:46:05,078 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 13:46:05,078 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 13:46:05,301 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 13:46:05,304 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 13:46:05,515 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 13:46:05,524 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 13:46:05,524 INFO L300 CfgBuilder]: Removed 2 assume(true) statements. [2022-10-16 13:46:05,530 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:46:05 BoogieIcfgContainer [2022-10-16 13:46:05,530 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 13:46:05,537 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 13:46:05,538 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 13:46:05,547 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 13:46:05,547 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 01:46:03" (1/3) ... [2022-10-16 13:46:05,551 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e62b96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:46:05, skipping insertion in model container [2022-10-16 13:46:05,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 01:46:04" (2/3) ... [2022-10-16 13:46:05,552 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1e62b96d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 01:46:05, skipping insertion in model container [2022-10-16 13:46:05,552 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 01:46:05" (3/3) ... [2022-10-16 13:46:05,554 INFO L112 eAbstractionObserver]: Analyzing ICFG memleaks_test18.i [2022-10-16 13:46:05,610 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 13:46:05,611 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 6 error locations. [2022-10-16 13:46:05,704 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 13:46:05,713 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;@60353920, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 13:46:05,714 INFO L358 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-10-16 13:46:05,719 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 23 states have (on average 1.565217391304348) internal successors, (36), 29 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:05,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 13:46:05,730 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:05,731 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:05,732 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:05,739 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:05,739 INFO L85 PathProgramCache]: Analyzing trace with hash 882039994, now seen corresponding path program 1 times [2022-10-16 13:46:05,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:05,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [531896372] [2022-10-16 13:46:05,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:05,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:05,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:06,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 13:46:06,127 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:06,127 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [531896372] [2022-10-16 13:46:06,128 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [531896372] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:06,128 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:06,128 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:46:06,130 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [291270578] [2022-10-16 13:46:06,131 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:06,135 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:06,136 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:06,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:06,168 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:06,170 INFO L87 Difference]: Start difference. First operand has 33 states, 23 states have (on average 1.565217391304348) internal successors, (36), 29 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:06,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:06,297 INFO L93 Difference]: Finished difference Result 72 states and 89 transitions. [2022-10-16 13:46:06,299 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:06,300 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2022-10-16 13:46:06,301 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:06,310 INFO L225 Difference]: With dead ends: 72 [2022-10-16 13:46:06,311 INFO L226 Difference]: Without dead ends: 47 [2022-10-16 13:46:06,315 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:06,321 INFO L413 NwaCegarLoop]: 39 mSDtfsCounter, 70 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 91 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:06,328 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 91 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:06,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2022-10-16 13:46:06,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 34. [2022-10-16 13:46:06,375 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 34 states, 24 states have (on average 1.4166666666666667) internal successors, (34), 29 states have internal predecessors, (34), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:06,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 40 transitions. [2022-10-16 13:46:06,379 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 40 transitions. Word has length 11 [2022-10-16 13:46:06,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:06,380 INFO L495 AbstractCegarLoop]: Abstraction has 34 states and 40 transitions. [2022-10-16 13:46:06,380 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (1), 1 states have call predecessors, (1), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 13:46:06,380 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 40 transitions. [2022-10-16 13:46:06,382 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 13:46:06,382 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:06,382 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:06,383 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 13:46:06,383 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:06,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:06,384 INFO L85 PathProgramCache]: Analyzing trace with hash 670996515, now seen corresponding path program 1 times [2022-10-16 13:46:06,385 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:06,385 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1053639652] [2022-10-16 13:46:06,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:06,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:06,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:06,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:06,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:06,662 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:46:06,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:06,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1053639652] [2022-10-16 13:46:06,664 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1053639652] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:06,664 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:06,664 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:06,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171290109] [2022-10-16 13:46:06,665 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:06,666 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:06,666 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:06,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:06,671 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:06,671 INFO L87 Difference]: Start difference. First operand 34 states and 40 transitions. Second operand has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:06,813 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:06,813 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2022-10-16 13:46:06,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:06,814 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 19 [2022-10-16 13:46:06,815 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:06,816 INFO L225 Difference]: With dead ends: 47 [2022-10-16 13:46:06,816 INFO L226 Difference]: Without dead ends: 45 [2022-10-16 13:46:06,817 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:06,819 INFO L413 NwaCegarLoop]: 29 mSDtfsCounter, 15 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 43 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 45 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 43 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:06,819 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 97 Invalid, 45 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 43 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:06,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45 states. [2022-10-16 13:46:06,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45 to 37. [2022-10-16 13:46:06,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 27 states have (on average 1.3703703703703705) internal successors, (37), 32 states have internal predecessors, (37), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2022-10-16 13:46:06,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 43 transitions. [2022-10-16 13:46:06,831 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 43 transitions. Word has length 19 [2022-10-16 13:46:06,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:06,832 INFO L495 AbstractCegarLoop]: Abstraction has 37 states and 43 transitions. [2022-10-16 13:46:06,832 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.0) internal successors, (12), 4 states have internal predecessors, (12), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:06,832 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 43 transitions. [2022-10-16 13:46:06,833 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 13:46:06,833 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:06,833 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:06,834 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-10-16 13:46:06,834 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:06,835 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:06,835 INFO L85 PathProgramCache]: Analyzing trace with hash 830782800, now seen corresponding path program 1 times [2022-10-16 13:46:06,835 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:06,836 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140624144] [2022-10-16 13:46:06,836 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:06,836 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:07,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:07,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,068 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 13:46:07,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:07,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140624144] [2022-10-16 13:46:07,069 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140624144] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:07,069 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:07,069 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-10-16 13:46:07,069 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2057432320] [2022-10-16 13:46:07,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:07,070 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2022-10-16 13:46:07,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:07,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2022-10-16 13:46:07,071 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:07,072 INFO L87 Difference]: Start difference. First operand 37 states and 43 transitions. Second operand has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:07,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:07,135 INFO L93 Difference]: Finished difference Result 77 states and 90 transitions. [2022-10-16 13:46:07,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 13:46:07,136 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-10-16 13:46:07,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:07,139 INFO L225 Difference]: With dead ends: 77 [2022-10-16 13:46:07,139 INFO L226 Difference]: Without dead ends: 65 [2022-10-16 13:46:07,140 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2022-10-16 13:46:07,142 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 21 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 32 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 32 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 32 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:07,142 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 155 Invalid, 32 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 32 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:07,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2022-10-16 13:46:07,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 43. [2022-10-16 13:46:07,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43 states, 32 states have (on average 1.3125) internal successors, (42), 36 states have internal predecessors, (42), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:07,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2022-10-16 13:46:07,156 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 22 [2022-10-16 13:46:07,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:07,157 INFO L495 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2022-10-16 13:46:07,157 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.8333333333333335) internal successors, (17), 4 states have internal predecessors, (17), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:07,158 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2022-10-16 13:46:07,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 13:46:07,159 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:07,159 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:07,159 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-10-16 13:46:07,160 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:07,160 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:07,160 INFO L85 PathProgramCache]: Analyzing trace with hash 879445873, now seen corresponding path program 1 times [2022-10-16 13:46:07,161 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:07,161 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170346298] [2022-10-16 13:46:07,161 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:07,162 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:07,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:07,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,368 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:46:07,369 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:07,369 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1170346298] [2022-10-16 13:46:07,370 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1170346298] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:07,370 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [985435199] [2022-10-16 13:46:07,370 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:07,371 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:07,371 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:07,373 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:07,391 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-10-16 13:46:07,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:07,510 INFO L263 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 3 conjunts are in the unsatisfiable core [2022-10-16 13:46:07,520 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:07,598 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:46:07,598 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:46:07,599 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [985435199] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:07,600 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:46:07,600 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2022-10-16 13:46:07,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1916966379] [2022-10-16 13:46:07,603 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:07,606 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 13:46:07,610 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:07,611 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 13:46:07,612 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:46:07,612 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand has 4 states, 3 states have (on average 5.0) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:07,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:07,664 INFO L93 Difference]: Finished difference Result 43 states and 51 transitions. [2022-10-16 13:46:07,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 13:46:07,665 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 22 [2022-10-16 13:46:07,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:07,669 INFO L225 Difference]: With dead ends: 43 [2022-10-16 13:46:07,669 INFO L226 Difference]: Without dead ends: 42 [2022-10-16 13:46:07,672 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2022-10-16 13:46:07,677 INFO L413 NwaCegarLoop]: 22 mSDtfsCounter, 18 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:07,679 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 50 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:07,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2022-10-16 13:46:07,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2022-10-16 13:46:07,703 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 42 states, 32 states have (on average 1.28125) internal successors, (41), 35 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:07,706 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2022-10-16 13:46:07,706 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 22 [2022-10-16 13:46:07,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:07,709 INFO L495 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2022-10-16 13:46:07,709 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), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:07,709 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2022-10-16 13:46:07,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2022-10-16 13:46:07,712 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:07,712 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:07,756 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:07,925 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:07,926 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:07,927 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:07,927 INFO L85 PathProgramCache]: Analyzing trace with hash 634269295, now seen corresponding path program 1 times [2022-10-16 13:46:07,927 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:07,928 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [794430478] [2022-10-16 13:46:07,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:07,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:07,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:08,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,044 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:08,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,069 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:46:08,069 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:08,070 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [794430478] [2022-10-16 13:46:08,070 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [794430478] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:08,070 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:08,070 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-10-16 13:46:08,070 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [896338116] [2022-10-16 13:46:08,071 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:08,071 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:08,071 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:08,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:08,072 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:08,072 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:08,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:08,132 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2022-10-16 13:46:08,132 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:08,133 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 22 [2022-10-16 13:46:08,133 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:08,134 INFO L225 Difference]: With dead ends: 49 [2022-10-16 13:46:08,134 INFO L226 Difference]: Without dead ends: 40 [2022-10-16 13:46:08,135 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:08,136 INFO L413 NwaCegarLoop]: 32 mSDtfsCounter, 7 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 103 SdHoareTripleChecker+Invalid, 39 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:08,137 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 103 Invalid, 39 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:08,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2022-10-16 13:46:08,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 38. [2022-10-16 13:46:08,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 38 states, 28 states have (on average 1.2857142857142858) internal successors, (36), 32 states have internal predecessors, (36), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:08,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 45 transitions. [2022-10-16 13:46:08,146 INFO L78 Accepts]: Start accepts. Automaton has 38 states and 45 transitions. Word has length 22 [2022-10-16 13:46:08,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:08,146 INFO L495 AbstractCegarLoop]: Abstraction has 38 states and 45 transitions. [2022-10-16 13:46:08,147 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:08,147 INFO L276 IsEmpty]: Start isEmpty. Operand 38 states and 45 transitions. [2022-10-16 13:46:08,148 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2022-10-16 13:46:08,148 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:08,148 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:08,149 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-10-16 13:46:08,149 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:08,149 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:08,150 INFO L85 PathProgramCache]: Analyzing trace with hash 1493018358, now seen corresponding path program 1 times [2022-10-16 13:46:08,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:08,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1493640067] [2022-10-16 13:46:08,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:08,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:08,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:08,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,265 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:46:08,265 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:08,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1493640067] [2022-10-16 13:46:08,266 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1493640067] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:08,266 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1843943681] [2022-10-16 13:46:08,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:08,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:08,268 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:08,302 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-10-16 13:46:08,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,372 INFO L263 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:46:08,376 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:08,432 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:46:08,433 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 13:46:08,433 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1843943681] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:08,434 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 13:46:08,434 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2022-10-16 13:46:08,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978491522] [2022-10-16 13:46:08,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:08,435 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:08,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:08,436 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:08,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2022-10-16 13:46:08,436 INFO L87 Difference]: Start difference. First operand 38 states and 45 transitions. Second operand has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:08,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:08,487 INFO L93 Difference]: Finished difference Result 38 states and 45 transitions. [2022-10-16 13:46:08,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2022-10-16 13:46:08,488 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 23 [2022-10-16 13:46:08,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:08,489 INFO L225 Difference]: With dead ends: 38 [2022-10-16 13:46:08,490 INFO L226 Difference]: Without dead ends: 36 [2022-10-16 13:46:08,490 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2022-10-16 13:46:08,491 INFO L413 NwaCegarLoop]: 23 mSDtfsCounter, 28 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 29 SdHoareTripleChecker+Valid, 56 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:08,492 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [29 Valid, 56 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:08,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 36 states. [2022-10-16 13:46:08,498 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 36 to 35. [2022-10-16 13:46:08,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 27 states have (on average 1.2222222222222223) internal successors, (33), 29 states have internal predecessors, (33), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (6), 4 states have call predecessors, (6), 3 states have call successors, (6) [2022-10-16 13:46:08,500 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 42 transitions. [2022-10-16 13:46:08,500 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 42 transitions. Word has length 23 [2022-10-16 13:46:08,500 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:08,500 INFO L495 AbstractCegarLoop]: Abstraction has 35 states and 42 transitions. [2022-10-16 13:46:08,501 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 4.0) internal successors, (16), 5 states have internal predecessors, (16), 2 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 13:46:08,501 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 42 transitions. [2022-10-16 13:46:08,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2022-10-16 13:46:08,502 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:08,502 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:08,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-10-16 13:46:08,716 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,SelfDestructingSolverStorable5 [2022-10-16 13:46:08,717 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:08,718 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:08,719 INFO L85 PathProgramCache]: Analyzing trace with hash -171335685, now seen corresponding path program 1 times [2022-10-16 13:46:08,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:08,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [917801837] [2022-10-16 13:46:08,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:08,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:08,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,872 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:46:08,872 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:08,872 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [917801837] [2022-10-16 13:46:08,873 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [917801837] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:08,873 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2035792622] [2022-10-16 13:46:08,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:08,873 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:08,874 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:08,875 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:08,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-10-16 13:46:08,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:08,972 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:08,979 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:09,110 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:46:09,110 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:09,185 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-10-16 13:46:09,186 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2035792622] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:09,186 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:09,186 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-10-16 13:46:09,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [283021420] [2022-10-16 13:46:09,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:09,187 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-10-16 13:46:09,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:09,188 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-10-16 13:46:09,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2022-10-16 13:46:09,189 INFO L87 Difference]: Start difference. First operand 35 states and 42 transitions. Second operand has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 13 states have internal predecessors, (38), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 13:46:09,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:09,375 INFO L93 Difference]: Finished difference Result 71 states and 83 transitions. [2022-10-16 13:46:09,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-10-16 13:46:09,376 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 13 states have internal predecessors, (38), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) Word has length 26 [2022-10-16 13:46:09,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:09,380 INFO L225 Difference]: With dead ends: 71 [2022-10-16 13:46:09,380 INFO L226 Difference]: Without dead ends: 63 [2022-10-16 13:46:09,381 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:46:09,388 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 80 mSDsluCounter, 119 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 81 SdHoareTripleChecker+Valid, 145 SdHoareTripleChecker+Invalid, 139 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:09,389 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [81 Valid, 145 Invalid, 139 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:09,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63 states. [2022-10-16 13:46:09,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63 to 46. [2022-10-16 13:46:09,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46 states, 37 states have (on average 1.2162162162162162) internal successors, (45), 38 states have internal predecessors, (45), 4 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (8), 6 states have call predecessors, (8), 4 states have call successors, (8) [2022-10-16 13:46:09,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46 states to 46 states and 57 transitions. [2022-10-16 13:46:09,413 INFO L78 Accepts]: Start accepts. Automaton has 46 states and 57 transitions. Word has length 26 [2022-10-16 13:46:09,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:09,413 INFO L495 AbstractCegarLoop]: Abstraction has 46 states and 57 transitions. [2022-10-16 13:46:09,414 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.7142857142857144) internal successors, (38), 13 states have internal predecessors, (38), 5 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 13:46:09,414 INFO L276 IsEmpty]: Start isEmpty. Operand 46 states and 57 transitions. [2022-10-16 13:46:09,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2022-10-16 13:46:09,415 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:09,415 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:09,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:09,630 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:09,631 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:09,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:09,632 INFO L85 PathProgramCache]: Analyzing trace with hash 582507482, now seen corresponding path program 1 times [2022-10-16 13:46:09,633 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:09,633 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1718087827] [2022-10-16 13:46:09,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:09,634 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:09,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:09,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:09,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:09,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:09,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:09,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 13:46:09,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:09,765 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:46:09,766 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:09,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1718087827] [2022-10-16 13:46:09,766 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1718087827] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:09,766 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254367396] [2022-10-16 13:46:09,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:09,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:09,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:09,768 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:09,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-10-16 13:46:09,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:09,853 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjunts are in the unsatisfiable core [2022-10-16 13:46:09,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:09,906 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:46:09,906 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:09,970 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:46:09,971 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254367396] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:09,971 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:09,971 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 12 [2022-10-16 13:46:09,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126377379] [2022-10-16 13:46:09,972 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:09,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2022-10-16 13:46:09,973 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:09,973 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2022-10-16 13:46:09,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2022-10-16 13:46:09,974 INFO L87 Difference]: Start difference. First operand 46 states and 57 transitions. Second operand has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:10,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:10,114 INFO L93 Difference]: Finished difference Result 88 states and 107 transitions. [2022-10-16 13:46:10,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2022-10-16 13:46:10,115 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 30 [2022-10-16 13:46:10,116 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:10,117 INFO L225 Difference]: With dead ends: 88 [2022-10-16 13:46:10,117 INFO L226 Difference]: Without dead ends: 87 [2022-10-16 13:46:10,117 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=79, Invalid=193, Unknown=0, NotChecked=0, Total=272 [2022-10-16 13:46:10,118 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 65 mSDsluCounter, 99 mSDsCounter, 0 mSdLazyCounter, 86 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 94 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 86 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:10,119 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 130 Invalid, 94 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 86 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:10,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2022-10-16 13:46:10,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 62. [2022-10-16 13:46:10,129 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 62 states, 51 states have (on average 1.196078431372549) internal successors, (61), 50 states have internal predecessors, (61), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 10 states have call predecessors, (12), 6 states have call successors, (12) [2022-10-16 13:46:10,130 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 62 states to 62 states and 79 transitions. [2022-10-16 13:46:10,131 INFO L78 Accepts]: Start accepts. Automaton has 62 states and 79 transitions. Word has length 30 [2022-10-16 13:46:10,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:10,131 INFO L495 AbstractCegarLoop]: Abstraction has 62 states and 79 transitions. [2022-10-16 13:46:10,131 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 12 states have (on average 3.1666666666666665) internal successors, (38), 12 states have internal predecessors, (38), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:10,132 INFO L276 IsEmpty]: Start isEmpty. Operand 62 states and 79 transitions. [2022-10-16 13:46:10,133 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2022-10-16 13:46:10,133 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:10,133 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:10,173 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:10,347 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:10,348 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:10,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:10,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1567406936, now seen corresponding path program 1 times [2022-10-16 13:46:10,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:10,350 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70074877] [2022-10-16 13:46:10,350 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:10,350 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:10,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:10,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:10,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:10,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:10,487 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 13:46:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:10,493 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:46:10,494 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:10,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70074877] [2022-10-16 13:46:10,494 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70074877] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:10,494 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [537911511] [2022-10-16 13:46:10,495 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:10,495 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:10,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:10,496 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:10,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-10-16 13:46:10,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:10,573 INFO L263 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 13:46:10,576 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:10,633 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:46:10,633 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:10,713 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2022-10-16 13:46:10,714 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [537911511] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:10,714 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:10,714 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 14 [2022-10-16 13:46:10,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678869116] [2022-10-16 13:46:10,715 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:10,715 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 13:46:10,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:10,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 13:46:10,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=168, Unknown=0, NotChecked=0, Total=210 [2022-10-16 13:46:10,717 INFO L87 Difference]: Start difference. First operand 62 states and 79 transitions. Second operand has 15 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:10,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:10,917 INFO L93 Difference]: Finished difference Result 69 states and 87 transitions. [2022-10-16 13:46:10,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 13:46:10,918 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Word has length 33 [2022-10-16 13:46:10,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:10,920 INFO L225 Difference]: With dead ends: 69 [2022-10-16 13:46:10,921 INFO L226 Difference]: Without dead ends: 68 [2022-10-16 13:46:10,921 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 61 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=107, Invalid=399, Unknown=0, NotChecked=0, Total=506 [2022-10-16 13:46:10,922 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 54 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 112 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 54 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 112 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:10,923 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [54 Valid, 116 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 112 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:10,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2022-10-16 13:46:10,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 61. [2022-10-16 13:46:10,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 51 states have (on average 1.1764705882352942) internal successors, (60), 49 states have internal predecessors, (60), 6 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (12), 10 states have call predecessors, (12), 6 states have call successors, (12) [2022-10-16 13:46:10,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 78 transitions. [2022-10-16 13:46:10,934 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 78 transitions. Word has length 33 [2022-10-16 13:46:10,934 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:10,935 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 78 transitions. [2022-10-16 13:46:10,935 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 3.2142857142857144) internal successors, (45), 14 states have internal predecessors, (45), 6 states have call successors, (8), 2 states have call predecessors, (8), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:10,935 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 78 transitions. [2022-10-16 13:46:10,936 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2022-10-16 13:46:10,936 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:10,937 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:10,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:11,150 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:11,151 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:11,152 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:11,152 INFO L85 PathProgramCache]: Analyzing trace with hash 1344974845, now seen corresponding path program 1 times [2022-10-16 13:46:11,152 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:11,153 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [328004371] [2022-10-16 13:46:11,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:11,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:11,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:11,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 13:46:11,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,225 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2022-10-16 13:46:11,226 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:11,226 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [328004371] [2022-10-16 13:46:11,226 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [328004371] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 13:46:11,226 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 13:46:11,226 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 13:46:11,227 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1451373952] [2022-10-16 13:46:11,227 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 13:46:11,227 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 13:46:11,227 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:11,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 13:46:11,228 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 13:46:11,228 INFO L87 Difference]: Start difference. First operand 61 states and 78 transitions. Second operand has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:11,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:11,264 INFO L93 Difference]: Finished difference Result 61 states and 78 transitions. [2022-10-16 13:46:11,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 13:46:11,265 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 34 [2022-10-16 13:46:11,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:11,266 INFO L225 Difference]: With dead ends: 61 [2022-10-16 13:46:11,266 INFO L226 Difference]: Without dead ends: 54 [2022-10-16 13:46:11,267 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2022-10-16 13:46:11,268 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 5 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 90 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:11,268 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [5 Valid, 90 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 13:46:11,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 54 states. [2022-10-16 13:46:11,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 54 to 44. [2022-10-16 13:46:11,276 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 44 states, 36 states have (on average 1.0555555555555556) internal successors, (38), 36 states have internal predecessors, (38), 6 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2022-10-16 13:46:11,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 50 transitions. [2022-10-16 13:46:11,277 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 50 transitions. Word has length 34 [2022-10-16 13:46:11,277 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:11,277 INFO L495 AbstractCegarLoop]: Abstraction has 44 states and 50 transitions. [2022-10-16 13:46:11,277 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.25) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2022-10-16 13:46:11,278 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 50 transitions. [2022-10-16 13:46:11,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2022-10-16 13:46:11,279 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:11,279 INFO L195 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 5, 5, 5, 4, 4, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:11,280 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2022-10-16 13:46:11,280 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:11,280 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:11,280 INFO L85 PathProgramCache]: Analyzing trace with hash 721276771, now seen corresponding path program 2 times [2022-10-16 13:46:11,281 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:11,281 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [33723238] [2022-10-16 13:46:11,281 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:11,281 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:11,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:11,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:11,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 13:46:11,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:46:11,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 13:46:11,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-16 13:46:11,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:11,666 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 13:46:11,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:11,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [33723238] [2022-10-16 13:46:11,667 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [33723238] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:11,667 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [886363815] [2022-10-16 13:46:11,667 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 13:46:11,668 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:11,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:11,669 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:11,691 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-10-16 13:46:11,785 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 13:46:11,786 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:11,788 INFO L263 TraceCheckSpWp]: Trace formula consists of 319 conjuncts, 11 conjunts are in the unsatisfiable core [2022-10-16 13:46:11,792 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:11,869 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 13:46:11,869 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:12,052 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2022-10-16 13:46:12,052 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [886363815] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:12,052 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:12,052 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 11, 11] total 24 [2022-10-16 13:46:12,053 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1779514890] [2022-10-16 13:46:12,053 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:12,054 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 25 states [2022-10-16 13:46:12,054 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:12,054 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 25 interpolants. [2022-10-16 13:46:12,055 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=157, Invalid=443, Unknown=0, NotChecked=0, Total=600 [2022-10-16 13:46:12,055 INFO L87 Difference]: Start difference. First operand 44 states and 50 transitions. Second operand has 25 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 24 states have internal predecessors, (74), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:46:12,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:12,330 INFO L93 Difference]: Finished difference Result 90 states and 118 transitions. [2022-10-16 13:46:12,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2022-10-16 13:46:12,331 INFO L78 Accepts]: Start accepts. Automaton has has 25 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 24 states have internal predecessors, (74), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Word has length 63 [2022-10-16 13:46:12,332 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:12,334 INFO L225 Difference]: With dead ends: 90 [2022-10-16 13:46:12,335 INFO L226 Difference]: Without dead ends: 89 [2022-10-16 13:46:12,336 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 240 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=334, Invalid=856, Unknown=0, NotChecked=0, Total=1190 [2022-10-16 13:46:12,337 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 55 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 159 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 174 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 159 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:12,337 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 240 Invalid, 174 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 159 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 13:46:12,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2022-10-16 13:46:12,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 86. [2022-10-16 13:46:12,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 86 states, 72 states have (on average 1.0277777777777777) internal successors, (74), 72 states have internal predecessors, (74), 12 states have call successors, (12), 1 states have call predecessors, (12), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:46:12,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 86 states to 86 states and 98 transitions. [2022-10-16 13:46:12,368 INFO L78 Accepts]: Start accepts. Automaton has 86 states and 98 transitions. Word has length 63 [2022-10-16 13:46:12,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:12,369 INFO L495 AbstractCegarLoop]: Abstraction has 86 states and 98 transitions. [2022-10-16 13:46:12,369 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 25 states, 24 states have (on average 3.0833333333333335) internal successors, (74), 24 states have internal predecessors, (74), 12 states have call successors, (17), 2 states have call predecessors, (17), 1 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2022-10-16 13:46:12,369 INFO L276 IsEmpty]: Start isEmpty. Operand 86 states and 98 transitions. [2022-10-16 13:46:12,375 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2022-10-16 13:46:12,376 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 13:46:12,376 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 11, 11, 11, 11, 11, 11, 10, 10, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:12,423 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:12,590 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:12,591 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 3 more)] === [2022-10-16 13:46:12,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 13:46:12,592 INFO L85 PathProgramCache]: Analyzing trace with hash -493183421, now seen corresponding path program 3 times [2022-10-16 13:46:12,592 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 13:46:12,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1399835793] [2022-10-16 13:46:12,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 13:46:12,593 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 13:46:12,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2022-10-16 13:46:13,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2022-10-16 13:46:13,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2022-10-16 13:46:13,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 13:46:13,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,677 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2022-10-16 13:46:13,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 54 [2022-10-16 13:46:13,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2022-10-16 13:46:13,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2022-10-16 13:46:13,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,722 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2022-10-16 13:46:13,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2022-10-16 13:46:13,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2022-10-16 13:46:13,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2022-10-16 13:46:13,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 13:46:13,753 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 311 proven. 64 refuted. 0 times theorem prover too weak. 264 trivial. 0 not checked. [2022-10-16 13:46:13,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 13:46:13,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1399835793] [2022-10-16 13:46:13,754 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1399835793] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 13:46:13,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1717540321] [2022-10-16 13:46:13,754 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 13:46:13,754 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:13,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 13:46:13,756 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 13:46:13,779 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-10-16 13:46:13,865 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2022-10-16 13:46:13,865 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 13:46:13,867 INFO L263 TraceCheckSpWp]: Trace formula consists of 127 conjuncts, 4 conjunts are in the unsatisfiable core [2022-10-16 13:46:13,872 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 13:46:14,013 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-10-16 13:46:14,013 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 13:46:14,204 INFO L134 CoverageAnalysis]: Checked inductivity of 639 backedges. 0 proven. 50 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2022-10-16 13:46:14,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1717540321] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 13:46:14,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 13:46:14,205 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 4, 4] total 30 [2022-10-16 13:46:14,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [787827341] [2022-10-16 13:46:14,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 13:46:14,206 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2022-10-16 13:46:14,206 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 13:46:14,207 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2022-10-16 13:46:14,208 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=721, Unknown=0, NotChecked=0, Total=870 [2022-10-16 13:46:14,208 INFO L87 Difference]: Start difference. First operand 86 states and 98 transitions. Second operand has 30 states, 30 states have (on average 3.3) internal successors, (99), 29 states have internal predecessors, (99), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-10-16 13:46:14,988 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 13:46:14,989 INFO L93 Difference]: Finished difference Result 94 states and 116 transitions. [2022-10-16 13:46:14,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 33 states. [2022-10-16 13:46:14,990 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 30 states have (on average 3.3) internal successors, (99), 29 states have internal predecessors, (99), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) Word has length 129 [2022-10-16 13:46:14,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 13:46:14,990 INFO L225 Difference]: With dead ends: 94 [2022-10-16 13:46:14,990 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 13:46:14,993 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 276 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 674 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=744, Invalid=2562, Unknown=0, NotChecked=0, Total=3306 [2022-10-16 13:46:14,994 INFO L413 NwaCegarLoop]: 51 mSDtfsCounter, 31 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 270 SdHoareTripleChecker+Invalid, 526 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2022-10-16 13:46:14,994 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 270 Invalid, 526 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2022-10-16 13:46:14,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 13:46:14,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 13:46:14,995 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 13:46:14,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 13:46:14,995 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 129 [2022-10-16 13:46:14,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 13:46:14,996 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 13:46:14,996 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 30 states have (on average 3.3) internal successors, (99), 29 states have internal predecessors, (99), 15 states have call successors, (18), 2 states have call predecessors, (18), 1 states have return successors, (17), 15 states have call predecessors, (17), 15 states have call successors, (17) [2022-10-16 13:46:14,996 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 13:46:14,996 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 13:46:14,999 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 6 remaining) [2022-10-16 13:46:15,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 6 remaining) [2022-10-16 13:46:15,000 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 6 remaining) [2022-10-16 13:46:15,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 6 remaining) [2022-10-16 13:46:15,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 6 remaining) [2022-10-16 13:46:15,001 INFO L805 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 6 remaining) [2022-10-16 13:46:15,042 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-10-16 13:46:15,203 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 13:46:15,207 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 13:46:15,643 INFO L895 garLoopResultBuilder]: At program point ldv_mallocENTRY(lines 525 531) the Hoare annotation is: (and (= |old(#length)| |#length|) (= |old(#valid)| |#valid|)) [2022-10-16 13:46:15,643 INFO L899 garLoopResultBuilder]: For program point L526(lines 526 530) no Hoare annotation was computed. [2022-10-16 13:46:15,643 INFO L899 garLoopResultBuilder]: For program point ldv_mallocFINAL(lines 525 531) no Hoare annotation was computed. [2022-10-16 13:46:15,643 INFO L899 garLoopResultBuilder]: For program point ldv_mallocEXIT(lines 525 531) no Hoare annotation was computed. [2022-10-16 13:46:15,643 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2022-10-16 13:46:15,644 INFO L895 garLoopResultBuilder]: At program point L762(line 762) the Hoare annotation is: (and (<= |ULTIMATE.start_entry_point_~len~0#1| 10) (<= 10 |ULTIMATE.start_entry_point_~len~0#1|)) [2022-10-16 13:46:15,644 INFO L899 garLoopResultBuilder]: For program point L762-1(line 762) no Hoare annotation was computed. [2022-10-16 13:46:15,644 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 13:46:15,644 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 767) no Hoare annotation was computed. [2022-10-16 13:46:15,644 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 13:46:15,644 INFO L899 garLoopResultBuilder]: For program point L767-2(lines 767 771) no Hoare annotation was computed. [2022-10-16 13:46:15,644 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2022-10-16 13:46:15,645 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 13:46:15,646 INFO L899 garLoopResultBuilder]: For program point L767-3(line 767) no Hoare annotation was computed. [2022-10-16 13:46:15,646 INFO L899 garLoopResultBuilder]: For program point L763(lines 763 777) no Hoare annotation was computed. [2022-10-16 13:46:15,646 INFO L899 garLoopResultBuilder]: For program point L767-4(line 767) no Hoare annotation was computed. [2022-10-16 13:46:15,646 INFO L895 garLoopResultBuilder]: At program point L767-5(lines 767 771) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse1 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (and .cse0 (< |ULTIMATE.start_entry_point_~i~0#1| 2147483647) .cse1 (<= 1 |ULTIMATE.start_entry_point_~i~0#1|)))) [2022-10-16 13:46:15,646 INFO L895 garLoopResultBuilder]: At program point L763-2(lines 760 779) the Hoare annotation is: (<= 10 |ULTIMATE.start_entry_point_~len~0#1|) [2022-10-16 13:46:15,647 INFO L899 garLoopResultBuilder]: For program point L780(lines 780 782) no Hoare annotation was computed. [2022-10-16 13:46:15,647 INFO L895 garLoopResultBuilder]: At program point L772(lines 763 777) the Hoare annotation is: (let ((.cse0 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483647) .cse0 (<= 1 |ULTIMATE.start_entry_point_~i~0#1|)) (and .cse0 (= |ULTIMATE.start_entry_point_~i~0#1| 0)))) [2022-10-16 13:46:15,648 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 767) no Hoare annotation was computed. [2022-10-16 13:46:15,648 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 13:46:15,648 INFO L895 garLoopResultBuilder]: At program point L768(line 768) the Hoare annotation is: (let ((.cse0 (<= |ULTIMATE.start_entry_point_~len~0#1| 10)) (.cse1 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 .cse1 (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (and .cse0 .cse1 (<= 1 |ULTIMATE.start_entry_point_~i~0#1|) (<= |ULTIMATE.start_entry_point_~i~0#1| 9)))) [2022-10-16 13:46:15,648 INFO L899 garLoopResultBuilder]: For program point L768-1(line 768) no Hoare annotation was computed. [2022-10-16 13:46:15,648 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2022-10-16 13:46:15,648 INFO L899 garLoopResultBuilder]: For program point L773(line 773) no Hoare annotation was computed. [2022-10-16 13:46:15,648 INFO L899 garLoopResultBuilder]: For program point L773-3(lines 773 775) no Hoare annotation was computed. [2022-10-16 13:46:15,649 INFO L899 garLoopResultBuilder]: For program point L769(line 769) no Hoare annotation was computed. [2022-10-16 13:46:15,649 INFO L899 garLoopResultBuilder]: For program point L773-4(line 773) no Hoare annotation was computed. [2022-10-16 13:46:15,649 INFO L899 garLoopResultBuilder]: For program point L773-5(line 773) no Hoare annotation was computed. [2022-10-16 13:46:15,649 INFO L895 garLoopResultBuilder]: At program point L773-6(lines 773 775) the Hoare annotation is: (let ((.cse0 (<= 10 |ULTIMATE.start_entry_point_~len~0#1|))) (or (and .cse0 (<= (+ |ULTIMATE.start_entry_point_~j~0#1| 1) 0) (= |ULTIMATE.start_entry_point_~i~0#1| 0)) (and (< |ULTIMATE.start_entry_point_~j~0#1| 2147483649) (<= |ULTIMATE.start_entry_point_~i~0#1| 2147483647) .cse0 (<= 1 |ULTIMATE.start_entry_point_~i~0#1|)))) [2022-10-16 13:46:15,649 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 773) no Hoare annotation was computed. [2022-10-16 13:46:15,649 INFO L899 garLoopResultBuilder]: For program point L773-7(lines 773 775) no Hoare annotation was computed. [2022-10-16 13:46:15,653 INFO L444 BasicCegarLoop]: Path program histogram: [3, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 13:46:15,656 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 13:46:15,678 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 01:46:15 BoogieIcfgContainer [2022-10-16 13:46:15,678 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 13:46:15,679 INFO L158 Benchmark]: Toolchain (without parser) took 11910.87ms. Allocated memory was 151.0MB in the beginning and 196.1MB in the end (delta: 45.1MB). Free memory was 103.4MB in the beginning and 125.7MB in the end (delta: -22.3MB). Peak memory consumption was 86.1MB. Max. memory is 8.0GB. [2022-10-16 13:46:15,679 INFO L158 Benchmark]: CDTParser took 0.28ms. Allocated memory is still 151.0MB. Free memory was 122.2MB in the beginning and 121.8MB in the end (delta: 435.2kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 13:46:15,680 INFO L158 Benchmark]: CACSL2BoogieTranslator took 1029.28ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 124.1MB in the end (delta: -21.2MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. [2022-10-16 13:46:15,680 INFO L158 Benchmark]: Boogie Procedure Inliner took 95.31ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 122.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 13:46:15,681 INFO L158 Benchmark]: Boogie Preprocessor took 57.26ms. Allocated memory is still 151.0MB. Free memory was 122.1MB in the beginning and 120.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 13:46:15,681 INFO L158 Benchmark]: RCFGBuilder took 566.35ms. Allocated memory is still 151.0MB. Free memory was 120.5MB in the beginning and 108.5MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. [2022-10-16 13:46:15,682 INFO L158 Benchmark]: TraceAbstraction took 10141.27ms. Allocated memory was 151.0MB in the beginning and 196.1MB in the end (delta: 45.1MB). Free memory was 107.9MB in the beginning and 125.7MB in the end (delta: -17.8MB). Peak memory consumption was 90.7MB. Max. memory is 8.0GB. [2022-10-16 13:46:15,685 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28ms. Allocated memory is still 151.0MB. Free memory was 122.2MB in the beginning and 121.8MB in the end (delta: 435.2kB). There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 1029.28ms. Allocated memory is still 151.0MB. Free memory was 102.9MB in the beginning and 124.1MB in the end (delta: -21.2MB). Peak memory consumption was 19.9MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 95.31ms. Allocated memory is still 151.0MB. Free memory was 124.1MB in the beginning and 122.1MB in the end (delta: 2.0MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 57.26ms. Allocated memory is still 151.0MB. Free memory was 122.1MB in the beginning and 120.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 566.35ms. Allocated memory is still 151.0MB. Free memory was 120.5MB in the beginning and 108.5MB in the end (delta: 12.0MB). Peak memory consumption was 11.5MB. Max. memory is 8.0GB. * TraceAbstraction took 10141.27ms. Allocated memory was 151.0MB in the beginning and 196.1MB in the end (delta: 45.1MB). Free memory was 107.9MB in the beginning and 125.7MB in the end (delta: -17.8MB). Peak memory consumption was 90.7MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 767]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 773]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 10.0s, OverallIterations: 12, TraceHistogramMax: 12, PathProgramHistogramMax: 3, EmptinessCheckTime: 0.0s, AutomataDifference: 2.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 456 SdHoareTripleChecker+Valid, 1.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 449 mSDsluCounter, 1543 SdHoareTripleChecker+Invalid, 0.9s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 1171 mSDsCounter, 63 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 1226 IncrementalHoareTripleChecker+Invalid, 1289 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 63 mSolverCounterUnsat, 372 mSDtfsCounter, 1226 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 814 GetRequests, 639 SyntacticMatches, 0 SemanticMatches, 175 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1077 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=86occurred in iteration=11, InterpolantAutomatonStates: 130, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 12 MinimizatonAttempts, 108 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 18 PreInvPairs, 45 NumberOfFragments, 109 HoareAnnotationTreeSize, 18 FomulaSimplifications, 2180 FormulaSimplificationTreeSizeReduction, 0.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 929 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.2s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 4.1s InterpolantComputationTime, 760 NumberOfCodeBlocks, 653 NumberOfCodeBlocksAsserted, 21 NumberOfCheckSat, 1017 ConstructedInterpolants, 0 QuantifiedInterpolants, 2517 SizeOfPredicates, 17 NumberOfNonLiveVariables, 1123 ConjunctsInSsa, 38 ConjunctsInUnsatCore, 24 InterpolantComputations, 7 PerfectInterpolantSequences, 2063/2460 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 760]: Loop Invariant Derived loop invariant: 10 <= len - InvariantResult [Line: 763]: Loop Invariant Derived loop invariant: ((i <= 2147483647 && 10 <= len) && 1 <= i) || (10 <= len && i == 0) - InvariantResult [Line: 767]: Loop Invariant Derived loop invariant: ((len <= 10 && 10 <= len) && i == 0) || (((len <= 10 && i < 2147483647) && 10 <= len) && 1 <= i) - InvariantResult [Line: 773]: Loop Invariant Derived loop invariant: ((10 <= len && j + 1 <= 0) && i == 0) || (((j < 2147483649 && i <= 2147483647) && 10 <= len) && 1 <= i) RESULT: Ultimate proved your program to be correct! [2022-10-16 13:46:15,762 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...