/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/recursive-simple/id_i15_o15-2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-05d3305-m [2022-10-16 17:47:23,393 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-10-16 17:47:23,396 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-10-16 17:47:23,450 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-10-16 17:47:23,450 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-10-16 17:47:23,454 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-10-16 17:47:23,458 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-10-16 17:47:23,466 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-10-16 17:47:23,473 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-10-16 17:47:23,479 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-10-16 17:47:23,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-10-16 17:47:23,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-10-16 17:47:23,483 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-10-16 17:47:23,486 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-10-16 17:47:23,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-10-16 17:47:23,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-10-16 17:47:23,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-10-16 17:47:23,492 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-10-16 17:47:23,496 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-10-16 17:47:23,503 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-10-16 17:47:23,507 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-10-16 17:47:23,509 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-10-16 17:47:23,511 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-10-16 17:47:23,514 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-10-16 17:47:23,525 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-10-16 17:47:23,537 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-10-16 17:47:23,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-10-16 17:47:23,539 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-10-16 17:47:23,544 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 17:47:23,578 INFO L113 SettingsManager]: Loading preferences was successful [2022-10-16 17:47:23,579 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-10-16 17:47:23,579 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-10-16 17:47:23,579 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-10-16 17:47:23,580 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-10-16 17:47:23,580 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-10-16 17:47:23,581 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-10-16 17:47:23,581 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-10-16 17:47:23,582 INFO L138 SettingsManager]: * Use SBE=true [2022-10-16 17:47:23,582 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-10-16 17:47:23,582 INFO L138 SettingsManager]: * sizeof long=4 [2022-10-16 17:47:23,583 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-10-16 17:47:23,583 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-10-16 17:47:23,583 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-10-16 17:47:23,583 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-10-16 17:47:23,584 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-10-16 17:47:23,584 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-10-16 17:47:23,584 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-10-16 17:47:23,584 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2022-10-16 17:47:23,584 INFO L138 SettingsManager]: * sizeof long double=12 [2022-10-16 17:47:23,585 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-10-16 17:47:23,585 INFO L138 SettingsManager]: * Use constant arrays=true [2022-10-16 17:47:23,585 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-10-16 17:47:23,586 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-10-16 17:47:23,586 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-10-16 17:47:23,586 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-10-16 17:47:23,586 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:47:23,587 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-10-16 17:47:23,587 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-10-16 17:47:23,587 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-10-16 17:47:23,587 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-10-16 17:47:23,588 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-10-16 17:47:23,588 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-10-16 17:47:23,588 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-10-16 17:47:23,956 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-10-16 17:47:23,988 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-10-16 17:47:23,991 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-10-16 17:47:23,992 INFO L271 PluginConnector]: Initializing CDTParser... [2022-10-16 17:47:23,993 INFO L275 PluginConnector]: CDTParser initialized [2022-10-16 17:47:23,995 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2022-10-16 17:47:24,087 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/452733680/fd571da6478c4630b6a8a19cf6d9c422/FLAG46dad7f53 [2022-10-16 17:47:24,676 INFO L306 CDTParser]: Found 1 translation units. [2022-10-16 17:47:24,676 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c [2022-10-16 17:47:24,682 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/452733680/fd571da6478c4630b6a8a19cf6d9c422/FLAG46dad7f53 [2022-10-16 17:47:25,076 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/452733680/fd571da6478c4630b6a8a19cf6d9c422 [2022-10-16 17:47:25,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-10-16 17:47:25,086 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-10-16 17:47:25,091 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-10-16 17:47:25,092 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-10-16 17:47:25,096 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-10-16 17:47:25,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,099 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@52310b80 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25, skipping insertion in model container [2022-10-16 17:47:25,099 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,109 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-10-16 17:47:25,122 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-10-16 17:47:25,274 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c[454,467] [2022-10-16 17:47:25,275 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:47:25,285 INFO L203 MainTranslator]: Completed pre-run [2022-10-16 17:47:25,302 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_i15_o15-2.c[454,467] [2022-10-16 17:47:25,303 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-10-16 17:47:25,319 INFO L208 MainTranslator]: Completed translation [2022-10-16 17:47:25,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25 WrapperNode [2022-10-16 17:47:25,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-10-16 17:47:25,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-10-16 17:47:25,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-10-16 17:47:25,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-10-16 17:47:25,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,359 INFO L138 Inliner]: procedures = 13, calls = 9, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 19 [2022-10-16 17:47:25,360 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-10-16 17:47:25,361 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-10-16 17:47:25,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-10-16 17:47:25,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-10-16 17:47:25,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,372 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,373 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,373 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,376 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,378 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,379 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,380 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,382 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-10-16 17:47:25,383 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-10-16 17:47:25,383 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-10-16 17:47:25,383 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-10-16 17:47:25,384 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (1/1) ... [2022-10-16 17:47:25,392 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-10-16 17:47:25,405 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:25,425 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 17:47:25,449 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 17:47:25,498 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-10-16 17:47:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-10-16 17:47:25,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-10-16 17:47:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-10-16 17:47:25,499 INFO L130 BoogieDeclarations]: Found specification of procedure id [2022-10-16 17:47:25,499 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2022-10-16 17:47:25,585 INFO L235 CfgBuilder]: Building ICFG [2022-10-16 17:47:25,588 INFO L261 CfgBuilder]: Building CFG for each procedure with an implementation [2022-10-16 17:47:25,801 INFO L276 CfgBuilder]: Performing block encoding [2022-10-16 17:47:25,819 INFO L295 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-10-16 17:47:25,820 INFO L300 CfgBuilder]: Removed 0 assume(true) statements. [2022-10-16 17:47:25,823 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:47:25 BoogieIcfgContainer [2022-10-16 17:47:25,824 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-10-16 17:47:25,827 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-10-16 17:47:25,827 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-10-16 17:47:25,831 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-10-16 17:47:25,832 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.10 05:47:25" (1/3) ... [2022-10-16 17:47:25,833 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd31d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:47:25, skipping insertion in model container [2022-10-16 17:47:25,834 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.10 05:47:25" (2/3) ... [2022-10-16 17:47:25,835 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4fd31d31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.10 05:47:25, skipping insertion in model container [2022-10-16 17:47:25,835 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.10 05:47:25" (3/3) ... [2022-10-16 17:47:25,838 INFO L112 eAbstractionObserver]: Analyzing ICFG id_i15_o15-2.c [2022-10-16 17:47:25,869 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-10-16 17:47:25,870 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 4 error locations. [2022-10-16 17:47:25,983 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-10-16 17:47:26,008 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;@1ecef7a2, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-10-16 17:47:26,008 INFO L358 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-10-16 17:47:26,016 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 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 17:47:26,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-10-16 17:47:26,041 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:26,042 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-10-16 17:47:26,043 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:26,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:26,052 INFO L85 PathProgramCache]: Analyzing trace with hash 890289268, now seen corresponding path program 1 times [2022-10-16 17:47:26,065 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:26,066 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1316338143] [2022-10-16 17:47:26,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:26,068 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:26,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:26,499 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 17:47:26,500 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:26,500 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1316338143] [2022-10-16 17:47:26,501 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1316338143] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:26,502 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:26,502 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-10-16 17:47:26,504 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077890829] [2022-10-16 17:47:26,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:26,511 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-10-16 17:47:26,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:26,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-10-16 17:47:26,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2022-10-16 17:47:26,556 INFO L87 Difference]: Start difference. First operand has 23 states, 15 states have (on average 1.4) internal successors, (21), 19 states have internal predecessors, (21), 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, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:26,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:26,705 INFO L93 Difference]: Finished difference Result 45 states and 48 transitions. [2022-10-16 17:47:26,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-10-16 17:47:26,708 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 6 [2022-10-16 17:47:26,708 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:26,720 INFO L225 Difference]: With dead ends: 45 [2022-10-16 17:47:26,720 INFO L226 Difference]: Without dead ends: 27 [2022-10-16 17:47:26,725 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 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 17:47:26,734 INFO L413 NwaCegarLoop]: 21 mSDtfsCounter, 23 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 24 SdHoareTripleChecker+Valid, 68 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:26,737 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [24 Valid, 68 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:26,758 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2022-10-16 17:47:26,788 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 25. [2022-10-16 17:47:26,791 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.3529411764705883) internal successors, (23), 20 states have internal predecessors, (23), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 17:47:26,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 28 transitions. [2022-10-16 17:47:26,795 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 28 transitions. Word has length 6 [2022-10-16 17:47:26,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:26,796 INFO L495 AbstractCegarLoop]: Abstraction has 25 states and 28 transitions. [2022-10-16 17:47:26,797 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.6666666666666667) internal successors, (5), 4 states have internal predecessors, (5), 1 states have call successors, (1), 1 states have call predecessors, (1), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:26,798 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 28 transitions. [2022-10-16 17:47:26,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2022-10-16 17:47:26,800 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:26,800 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:26,800 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-10-16 17:47:26,801 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:26,802 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:26,802 INFO L85 PathProgramCache]: Analyzing trace with hash 218045489, now seen corresponding path program 1 times [2022-10-16 17:47:26,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:26,803 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [548190548] [2022-10-16 17:47:26,804 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:26,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:26,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:27,000 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:27,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:27,001 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [548190548] [2022-10-16 17:47:27,002 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [548190548] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:27,002 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [132760615] [2022-10-16 17:47:27,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:27,003 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:27,003 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:27,005 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 17:47:27,012 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 17:47:27,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:27,052 INFO L263 TraceCheckSpWp]: Trace formula consists of 44 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:47:27,057 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:27,149 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:27,150 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2022-10-16 17:47:27,150 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [132760615] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:27,151 INFO L184 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2022-10-16 17:47:27,151 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6] total 9 [2022-10-16 17:47:27,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922544953] [2022-10-16 17:47:27,153 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:27,153 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-10-16 17:47:27,154 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:27,154 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-10-16 17:47:27,155 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2022-10-16 17:47:27,155 INFO L87 Difference]: Start difference. First operand 25 states and 28 transitions. Second operand has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:27,218 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:27,218 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2022-10-16 17:47:27,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-10-16 17:47:27,219 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 11 [2022-10-16 17:47:27,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:27,220 INFO L225 Difference]: With dead ends: 27 [2022-10-16 17:47:27,221 INFO L226 Difference]: Without dead ends: 26 [2022-10-16 17:47:27,221 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2022-10-16 17:47:27,223 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 42 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 42 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 48 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:27,224 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [42 Valid, 38 Invalid, 48 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:27,226 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2022-10-16 17:47:27,230 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2022-10-16 17:47:27,231 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 19 states have internal predecessors, (22), 3 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2022-10-16 17:47:27,232 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 27 transitions. [2022-10-16 17:47:27,232 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 27 transitions. Word has length 11 [2022-10-16 17:47:27,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:27,233 INFO L495 AbstractCegarLoop]: Abstraction has 24 states and 27 transitions. [2022-10-16 17:47:27,233 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 5 states have (on average 1.8) internal successors, (9), 5 states have internal predecessors, (9), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:27,234 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 27 transitions. [2022-10-16 17:47:27,234 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2022-10-16 17:47:27,234 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:27,235 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:27,272 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 17:47:27,450 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:27,451 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:27,453 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:27,454 INFO L85 PathProgramCache]: Analyzing trace with hash -1830524380, now seen corresponding path program 1 times [2022-10-16 17:47:27,454 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:27,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1257894244] [2022-10-16 17:47:27,455 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:27,455 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:27,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:27,559 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:27,559 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:27,559 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1257894244] [2022-10-16 17:47:27,560 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1257894244] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:27,560 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [39551079] [2022-10-16 17:47:27,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:27,560 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:27,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:27,571 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 17:47:27,588 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 17:47:27,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:27,621 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2022-10-16 17:47:27,623 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:27,686 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:27,687 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:27,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:27,809 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [39551079] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:27,812 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:27,812 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 14 [2022-10-16 17:47:27,813 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102686559] [2022-10-16 17:47:27,815 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:27,815 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2022-10-16 17:47:27,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:27,816 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2022-10-16 17:47:27,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=160, Unknown=0, NotChecked=0, Total=210 [2022-10-16 17:47:27,821 INFO L87 Difference]: Start difference. First operand 24 states and 27 transitions. Second operand has 15 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:28,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:28,077 INFO L93 Difference]: Finished difference Result 74 states and 80 transitions. [2022-10-16 17:47:28,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2022-10-16 17:47:28,079 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 12 [2022-10-16 17:47:28,080 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:28,091 INFO L225 Difference]: With dead ends: 74 [2022-10-16 17:47:28,091 INFO L226 Difference]: Without dead ends: 66 [2022-10-16 17:47:28,093 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=95, Invalid=285, Unknown=0, NotChecked=0, Total=380 [2022-10-16 17:47:28,098 INFO L413 NwaCegarLoop]: 16 mSDtfsCounter, 122 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 87 mSolverCounterSat, 29 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 29 IncrementalHoareTripleChecker+Valid, 87 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:28,099 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 99 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [29 Valid, 87 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:28,100 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 66 states. [2022-10-16 17:47:28,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 66 to 54. [2022-10-16 17:47:28,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 54 states, 41 states have (on average 1.3170731707317074) internal successors, (54), 43 states have internal predecessors, (54), 6 states have call successors, (6), 5 states have call predecessors, (6), 4 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2022-10-16 17:47:28,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 54 states to 54 states and 65 transitions. [2022-10-16 17:47:28,132 INFO L78 Accepts]: Start accepts. Automaton has 54 states and 65 transitions. Word has length 12 [2022-10-16 17:47:28,132 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:28,133 INFO L495 AbstractCegarLoop]: Abstraction has 54 states and 65 transitions. [2022-10-16 17:47:28,133 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 11 states have (on average 2.1818181818181817) internal successors, (24), 10 states have internal predecessors, (24), 6 states have call successors, (6), 5 states have call predecessors, (6), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:28,133 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states and 65 transitions. [2022-10-16 17:47:28,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2022-10-16 17:47:28,134 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:28,135 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:28,159 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:28,348 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,SelfDestructingSolverStorable2 [2022-10-16 17:47:28,350 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:28,351 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:28,351 INFO L85 PathProgramCache]: Analyzing trace with hash 1359868900, now seen corresponding path program 1 times [2022-10-16 17:47:28,351 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:28,352 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024067847] [2022-10-16 17:47:28,352 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:28,352 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:28,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:28,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2022-10-16 17:47:28,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 17:47:28,438 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:28,438 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024067847] [2022-10-16 17:47:28,438 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1024067847] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:28,439 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:28,439 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-10-16 17:47:28,439 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [495585217] [2022-10-16 17:47:28,439 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:28,443 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-10-16 17:47:28,443 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:28,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-10-16 17:47:28,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:47:28,446 INFO L87 Difference]: Start difference. First operand 54 states and 65 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:28,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:28,483 INFO L93 Difference]: Finished difference Result 74 states and 92 transitions. [2022-10-16 17:47:28,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-10-16 17:47:28,485 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 19 [2022-10-16 17:47:28,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:28,490 INFO L225 Difference]: With dead ends: 74 [2022-10-16 17:47:28,491 INFO L226 Difference]: Without dead ends: 72 [2022-10-16 17:47:28,492 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-10-16 17:47:28,496 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 1 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 12 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 12 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:28,499 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 38 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 12 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:28,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2022-10-16 17:47:28,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2022-10-16 17:47:28,526 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.2321428571428572) internal successors, (69), 57 states have internal predecessors, (69), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (9), 9 states have call predecessors, (9), 5 states have call successors, (9) [2022-10-16 17:47:28,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 84 transitions. [2022-10-16 17:47:28,535 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 84 transitions. Word has length 19 [2022-10-16 17:47:28,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:28,535 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 84 transitions. [2022-10-16 17:47:28,536 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:28,537 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 84 transitions. [2022-10-16 17:47:28,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2022-10-16 17:47:28,538 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:28,538 INFO L195 NwaCegarLoop]: trace histogram [3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:28,538 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-10-16 17:47:28,539 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:28,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:28,539 INFO L85 PathProgramCache]: Analyzing trace with hash -2128706883, now seen corresponding path program 1 times [2022-10-16 17:47:28,540 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:28,540 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153935891] [2022-10-16 17:47:28,540 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:28,540 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:28,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:28,616 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 17:47:28,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:28,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:28,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:28,734 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 4 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:47:28,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:28,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153935891] [2022-10-16 17:47:28,735 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153935891] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:28,735 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1729741806] [2022-10-16 17:47:28,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:28,740 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:28,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:28,742 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 17:47:28,771 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 17:47:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:28,814 INFO L263 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 8 conjunts are in the unsatisfiable core [2022-10-16 17:47:28,816 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:28,945 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 9 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-10-16 17:47:28,945 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:29,242 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 2 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2022-10-16 17:47:29,243 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1729741806] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:29,243 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:29,243 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 8, 9] total 18 [2022-10-16 17:47:29,244 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2032898701] [2022-10-16 17:47:29,244 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:29,246 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2022-10-16 17:47:29,246 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:29,247 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2022-10-16 17:47:29,247 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=251, Unknown=0, NotChecked=0, Total=306 [2022-10-16 17:47:29,248 INFO L87 Difference]: Start difference. First operand 72 states and 84 transitions. Second operand has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 17:47:29,500 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:29,500 INFO L93 Difference]: Finished difference Result 101 states and 117 transitions. [2022-10-16 17:47:29,501 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2022-10-16 17:47:29,501 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 24 [2022-10-16 17:47:29,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:29,502 INFO L225 Difference]: With dead ends: 101 [2022-10-16 17:47:29,502 INFO L226 Difference]: Without dead ends: 79 [2022-10-16 17:47:29,503 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 66 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 98 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=145, Invalid=557, Unknown=0, NotChecked=0, Total=702 [2022-10-16 17:47:29,505 INFO L413 NwaCegarLoop]: 15 mSDtfsCounter, 89 mSDsluCounter, 79 mSDsCounter, 0 mSdLazyCounter, 139 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 92 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 139 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:29,505 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [92 Valid, 94 Invalid, 161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 139 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:29,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 79 states. [2022-10-16 17:47:29,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 79 to 72. [2022-10-16 17:47:29,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 72 states, 56 states have (on average 1.1964285714285714) internal successors, (67), 56 states have internal predecessors, (67), 6 states have call successors, (6), 5 states have call predecessors, (6), 7 states have return successors, (10), 10 states have call predecessors, (10), 5 states have call successors, (10) [2022-10-16 17:47:29,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 83 transitions. [2022-10-16 17:47:29,517 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 83 transitions. Word has length 24 [2022-10-16 17:47:29,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:29,518 INFO L495 AbstractCegarLoop]: Abstraction has 72 states and 83 transitions. [2022-10-16 17:47:29,518 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 16 states have (on average 2.6875) internal successors, (43), 16 states have internal predecessors, (43), 7 states have call successors, (8), 3 states have call predecessors, (8), 4 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2022-10-16 17:47:29,518 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 83 transitions. [2022-10-16 17:47:29,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2022-10-16 17:47:29,519 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:29,519 INFO L195 NwaCegarLoop]: trace histogram [5, 5, 5, 4, 4, 1, 1, 1, 1] [2022-10-16 17:47:29,550 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 17:47:29,734 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:29,735 INFO L420 AbstractCegarLoop]: === Iteration 6 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:29,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:29,737 INFO L85 PathProgramCache]: Analyzing trace with hash -1294342655, now seen corresponding path program 2 times [2022-10-16 17:47:29,737 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:29,738 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1514246229] [2022-10-16 17:47:29,738 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:29,738 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:29,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:29,920 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:29,921 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:29,921 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1514246229] [2022-10-16 17:47:29,921 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1514246229] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:29,922 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [749110963] [2022-10-16 17:47:29,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:47:29,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:29,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:29,923 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 17:47:29,944 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 17:47:29,966 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:47:29,967 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:29,967 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 12 conjunts are in the unsatisfiable core [2022-10-16 17:47:29,970 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:30,047 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:30,048 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:30,239 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:30,239 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [749110963] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:30,240 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:30,240 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 26 [2022-10-16 17:47:30,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008192312] [2022-10-16 17:47:30,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:30,241 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2022-10-16 17:47:30,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:30,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2022-10-16 17:47:30,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=164, Invalid=538, Unknown=0, NotChecked=0, Total=702 [2022-10-16 17:47:30,243 INFO L87 Difference]: Start difference. First operand 72 states and 83 transitions. Second operand has 27 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 16 states have internal predecessors, (48), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:30,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:30,660 INFO L93 Difference]: Finished difference Result 220 states and 236 transitions. [2022-10-16 17:47:30,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2022-10-16 17:47:30,661 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 16 states have internal predecessors, (48), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 27 [2022-10-16 17:47:30,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:30,663 INFO L225 Difference]: With dead ends: 220 [2022-10-16 17:47:30,663 INFO L226 Difference]: Without dead ends: 197 [2022-10-16 17:47:30,664 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 78 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 39 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 344 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=419, Invalid=1221, Unknown=0, NotChecked=0, Total=1640 [2022-10-16 17:47:30,665 INFO L413 NwaCegarLoop]: 31 mSDtfsCounter, 262 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 189 mSolverCounterSat, 68 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 264 SdHoareTripleChecker+Valid, 235 SdHoareTripleChecker+Invalid, 257 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 68 IncrementalHoareTripleChecker+Valid, 189 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:30,666 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [264 Valid, 235 Invalid, 257 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [68 Valid, 189 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:47:30,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2022-10-16 17:47:30,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 177. [2022-10-16 17:47:30,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 139 states have (on average 1.2014388489208634) internal successors, (167), 139 states have internal predecessors, (167), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-10-16 17:47:30,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 205 transitions. [2022-10-16 17:47:30,693 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 205 transitions. Word has length 27 [2022-10-16 17:47:30,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:30,693 INFO L495 AbstractCegarLoop]: Abstraction has 177 states and 205 transitions. [2022-10-16 17:47:30,693 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 23 states have (on average 2.0869565217391304) internal successors, (48), 16 states have internal predecessors, (48), 12 states have call successors, (12), 11 states have call predecessors, (12), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 205 transitions. [2022-10-16 17:47:30,698 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2022-10-16 17:47:30,698 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:30,699 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2022-10-16 17:47:30,736 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 17:47:30,899 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:30,900 INFO L420 AbstractCegarLoop]: === Iteration 7 === Targeting idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:30,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:30,901 INFO L85 PathProgramCache]: Analyzing trace with hash 1697859681, now seen corresponding path program 1 times [2022-10-16 17:47:30,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:30,902 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3318391] [2022-10-16 17:47:30,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:30,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:30,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:30,939 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2022-10-16 17:47:30,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:30,948 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:30,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:30,951 INFO L134 CoverageAnalysis]: Checked inductivity of 65 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 63 trivial. 0 not checked. [2022-10-16 17:47:30,951 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:30,952 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [3318391] [2022-10-16 17:47:30,952 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [3318391] provided 1 perfect and 0 imperfect interpolant sequences [2022-10-16 17:47:30,952 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-10-16 17:47:30,952 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-10-16 17:47:30,952 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795569574] [2022-10-16 17:47:30,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-10-16 17:47:30,955 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-10-16 17:47:30,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:30,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-10-16 17:47:30,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:47:30,958 INFO L87 Difference]: Start difference. First operand 177 states and 205 transitions. Second operand has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:30,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:30,975 INFO L93 Difference]: Finished difference Result 177 states and 205 transitions. [2022-10-16 17:47:30,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-10-16 17:47:30,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 40 [2022-10-16 17:47:30,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:30,979 INFO L225 Difference]: With dead ends: 177 [2022-10-16 17:47:30,980 INFO L226 Difference]: Without dead ends: 175 [2022-10-16 17:47:30,980 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-10-16 17:47:30,981 INFO L413 NwaCegarLoop]: 13 mSDtfsCounter, 1 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 25 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:30,982 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 25 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-10-16 17:47:30,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2022-10-16 17:47:31,010 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 175. [2022-10-16 17:47:31,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 175 states, 138 states have (on average 1.1231884057971016) internal successors, (155), 137 states have internal predecessors, (155), 12 states have call successors, (12), 11 states have call predecessors, (12), 23 states have return successors, (26), 26 states have call predecessors, (26), 11 states have call successors, (26) [2022-10-16 17:47:31,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 175 states to 175 states and 193 transitions. [2022-10-16 17:47:31,013 INFO L78 Accepts]: Start accepts. Automaton has 175 states and 193 transitions. Word has length 40 [2022-10-16 17:47:31,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:31,014 INFO L495 AbstractCegarLoop]: Abstraction has 175 states and 193 transitions. [2022-10-16 17:47:31,014 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.0) internal successors, (14), 3 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2022-10-16 17:47:31,014 INFO L276 IsEmpty]: Start isEmpty. Operand 175 states and 193 transitions. [2022-10-16 17:47:31,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2022-10-16 17:47:31,016 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:31,016 INFO L195 NwaCegarLoop]: trace histogram [6, 5, 5, 5, 5, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:47:31,016 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-10-16 17:47:31,016 INFO L420 AbstractCegarLoop]: === Iteration 8 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:31,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:31,017 INFO L85 PathProgramCache]: Analyzing trace with hash -1883083449, now seen corresponding path program 2 times [2022-10-16 17:47:31,017 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:31,017 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [607602137] [2022-10-16 17:47:31,018 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:31,018 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:31,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:31,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2022-10-16 17:47:31,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:31,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:31,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:31,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:31,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:31,316 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 62 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:47:31,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:31,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [607602137] [2022-10-16 17:47:31,317 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [607602137] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:31,317 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158598097] [2022-10-16 17:47:31,317 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-10-16 17:47:31,318 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:31,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:31,319 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 17:47:31,341 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 17:47:31,385 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-10-16 17:47:31,386 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:31,387 INFO L263 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 14 conjunts are in the unsatisfiable core [2022-10-16 17:47:31,390 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:31,510 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 60 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-10-16 17:47:31,511 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:31,936 INFO L134 CoverageAnalysis]: Checked inductivity of 73 backedges. 4 proven. 66 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2022-10-16 17:47:31,937 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158598097] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:31,937 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:31,937 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 13, 15] total 29 [2022-10-16 17:47:31,937 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217105477] [2022-10-16 17:47:31,951 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:31,954 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2022-10-16 17:47:31,955 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:31,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2022-10-16 17:47:31,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=148, Invalid=664, Unknown=0, NotChecked=0, Total=812 [2022-10-16 17:47:31,957 INFO L87 Difference]: Start difference. First operand 175 states and 193 transitions. Second operand has 29 states, 26 states have (on average 2.5) internal successors, (65), 22 states have internal predecessors, (65), 14 states have call successors, (14), 8 states have call predecessors, (14), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-10-16 17:47:32,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:32,239 INFO L93 Difference]: Finished difference Result 224 states and 241 transitions. [2022-10-16 17:47:32,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2022-10-16 17:47:32,240 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 26 states have (on average 2.5) internal successors, (65), 22 states have internal predecessors, (65), 14 states have call successors, (14), 8 states have call predecessors, (14), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) Word has length 44 [2022-10-16 17:47:32,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:32,242 INFO L225 Difference]: With dead ends: 224 [2022-10-16 17:47:32,242 INFO L226 Difference]: Without dead ends: 157 [2022-10-16 17:47:32,244 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 74 SyntacticMatches, 3 SemanticMatches, 37 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 398 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=303, Invalid=1179, Unknown=0, NotChecked=0, Total=1482 [2022-10-16 17:47:32,244 INFO L413 NwaCegarLoop]: 36 mSDtfsCounter, 165 mSDsluCounter, 245 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 219 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:32,245 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 281 Invalid, 219 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:32,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2022-10-16 17:47:32,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 139. [2022-10-16 17:47:32,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 110 states have (on average 1.1181818181818182) internal successors, (123), 109 states have internal predecessors, (123), 12 states have call successors, (12), 11 states have call predecessors, (12), 15 states have return successors, (18), 18 states have call predecessors, (18), 11 states have call successors, (18) [2022-10-16 17:47:32,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 153 transitions. [2022-10-16 17:47:32,261 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 153 transitions. Word has length 44 [2022-10-16 17:47:32,261 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:32,262 INFO L495 AbstractCegarLoop]: Abstraction has 139 states and 153 transitions. [2022-10-16 17:47:32,262 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 26 states have (on average 2.5) internal successors, (65), 22 states have internal predecessors, (65), 14 states have call successors, (14), 8 states have call predecessors, (14), 4 states have return successors, (8), 3 states have call predecessors, (8), 6 states have call successors, (8) [2022-10-16 17:47:32,262 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 153 transitions. [2022-10-16 17:47:32,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2022-10-16 17:47:32,264 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:32,264 INFO L195 NwaCegarLoop]: trace histogram [11, 11, 11, 10, 10, 1, 1, 1, 1] [2022-10-16 17:47:32,301 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-10-16 17:47:32,478 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:32,479 INFO L420 AbstractCegarLoop]: === Iteration 9 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:32,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:32,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1160556449, now seen corresponding path program 3 times [2022-10-16 17:47:32,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:32,481 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1461034335] [2022-10-16 17:47:32,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:32,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:32,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:33,029 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:33,030 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:33,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1461034335] [2022-10-16 17:47:33,030 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1461034335] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:33,030 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662205305] [2022-10-16 17:47:33,030 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:47:33,031 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:33,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:33,040 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 17:47:33,041 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 17:47:33,086 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2022-10-16 17:47:33,087 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:33,088 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 24 conjunts are in the unsatisfiable core [2022-10-16 17:47:33,091 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:33,241 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:33,242 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:33,820 INFO L134 CoverageAnalysis]: Checked inductivity of 265 backedges. 0 proven. 265 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:33,821 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662205305] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:33,821 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:33,821 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 24, 24] total 50 [2022-10-16 17:47:33,821 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1615188364] [2022-10-16 17:47:33,822 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:33,822 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 51 states [2022-10-16 17:47:33,822 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:33,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 51 interpolants. [2022-10-16 17:47:33,825 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=608, Invalid=1942, Unknown=0, NotChecked=0, Total=2550 [2022-10-16 17:47:33,825 INFO L87 Difference]: Start difference. First operand 139 states and 153 transitions. Second operand has 51 states, 47 states have (on average 2.0425531914893615) internal successors, (96), 28 states have internal predecessors, (96), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:34,958 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:34,959 INFO L93 Difference]: Finished difference Result 431 states and 464 transitions. [2022-10-16 17:47:34,959 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2022-10-16 17:47:34,960 INFO L78 Accepts]: Start accepts. Automaton has has 51 states, 47 states have (on average 2.0425531914893615) internal successors, (96), 28 states have internal predecessors, (96), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 57 [2022-10-16 17:47:34,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:34,975 INFO L225 Difference]: With dead ends: 431 [2022-10-16 17:47:34,975 INFO L226 Difference]: Without dead ends: 371 [2022-10-16 17:47:34,983 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 168 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 81 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1523 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=1796, Invalid=5010, Unknown=0, NotChecked=0, Total=6806 [2022-10-16 17:47:34,986 INFO L413 NwaCegarLoop]: 56 mSDtfsCounter, 579 mSDsluCounter, 534 mSDsCounter, 0 mSdLazyCounter, 512 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 581 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 671 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 512 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:34,987 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [581 Valid, 590 Invalid, 671 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 512 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:47:34,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2022-10-16 17:47:35,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2022-10-16 17:47:35,017 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 349 states, 276 states have (on average 1.1268115942028984) internal successors, (311), 275 states have internal predecessors, (311), 24 states have call successors, (24), 23 states have call predecessors, (24), 47 states have return successors, (50), 50 states have call predecessors, (50), 23 states have call successors, (50) [2022-10-16 17:47:35,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 385 transitions. [2022-10-16 17:47:35,024 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 385 transitions. Word has length 57 [2022-10-16 17:47:35,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:35,024 INFO L495 AbstractCegarLoop]: Abstraction has 349 states and 385 transitions. [2022-10-16 17:47:35,025 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 51 states, 47 states have (on average 2.0425531914893615) internal successors, (96), 28 states have internal predecessors, (96), 24 states have call successors, (24), 23 states have call predecessors, (24), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:35,025 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 385 transitions. [2022-10-16 17:47:35,037 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2022-10-16 17:47:35,038 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:35,038 INFO L195 NwaCegarLoop]: trace histogram [12, 11, 11, 11, 11, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1] [2022-10-16 17:47:35,074 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 17:47:35,253 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:35,254 INFO L420 AbstractCegarLoop]: === Iteration 10 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:35,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:35,255 INFO L85 PathProgramCache]: Analyzing trace with hash 292034471, now seen corresponding path program 3 times [2022-10-16 17:47:35,256 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:35,256 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1356379226] [2022-10-16 17:47:35,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:35,257 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:35,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:35,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 17:47:35,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:35,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:35,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:35,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:35,865 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 4 proven. 299 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2022-10-16 17:47:35,865 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:35,865 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1356379226] [2022-10-16 17:47:35,866 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1356379226] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:35,866 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1558043806] [2022-10-16 17:47:35,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-10-16 17:47:35,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:35,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:35,867 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 17:47:35,876 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 17:47:35,917 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2022-10-16 17:47:35,917 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:35,918 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 7 conjunts are in the unsatisfiable core [2022-10-16 17:47:35,921 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:36,024 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-10-16 17:47:36,024 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:36,294 INFO L134 CoverageAnalysis]: Checked inductivity of 310 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 297 trivial. 0 not checked. [2022-10-16 17:47:36,295 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1558043806] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:36,295 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:36,295 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 7, 7] total 38 [2022-10-16 17:47:36,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2086252834] [2022-10-16 17:47:36,296 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:36,296 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2022-10-16 17:47:36,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:36,297 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2022-10-16 17:47:36,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=180, Invalid=1226, Unknown=0, NotChecked=0, Total=1406 [2022-10-16 17:47:36,298 INFO L87 Difference]: Start difference. First operand 349 states and 385 transitions. Second operand has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 17:47:37,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:37,377 INFO L93 Difference]: Finished difference Result 702 states and 802 transitions. [2022-10-16 17:47:37,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 49 states. [2022-10-16 17:47:37,378 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) Word has length 74 [2022-10-16 17:47:37,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:37,382 INFO L225 Difference]: With dead ends: 702 [2022-10-16 17:47:37,383 INFO L226 Difference]: Without dead ends: 647 [2022-10-16 17:47:37,386 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 221 GetRequests, 149 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1173 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=742, Invalid=4660, Unknown=0, NotChecked=0, Total=5402 [2022-10-16 17:47:37,387 INFO L413 NwaCegarLoop]: 30 mSDtfsCounter, 339 mSDsluCounter, 302 mSDsCounter, 0 mSdLazyCounter, 635 mSolverCounterSat, 159 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 332 SdHoareTripleChecker+Invalid, 794 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 159 IncrementalHoareTripleChecker+Valid, 635 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:37,387 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 332 Invalid, 794 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [159 Valid, 635 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-10-16 17:47:37,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 647 states. [2022-10-16 17:47:37,413 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 647 to 638. [2022-10-16 17:47:37,414 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 638 states, 509 states have (on average 1.0667976424361494) internal successors, (543), 504 states have internal predecessors, (543), 24 states have call successors, (24), 23 states have call predecessors, (24), 103 states have return successors, (110), 110 states have call predecessors, (110), 23 states have call successors, (110) [2022-10-16 17:47:37,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 638 states to 638 states and 677 transitions. [2022-10-16 17:47:37,418 INFO L78 Accepts]: Start accepts. Automaton has 638 states and 677 transitions. Word has length 74 [2022-10-16 17:47:37,419 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:37,419 INFO L495 AbstractCegarLoop]: Abstraction has 638 states and 677 transitions. [2022-10-16 17:47:37,419 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 37 states have (on average 2.27027027027027) internal successors, (84), 29 states have internal predecessors, (84), 12 states have call successors, (13), 10 states have call predecessors, (13), 9 states have return successors, (9), 9 states have call predecessors, (9), 3 states have call successors, (9) [2022-10-16 17:47:37,419 INFO L276 IsEmpty]: Start isEmpty. Operand 638 states and 677 transitions. [2022-10-16 17:47:37,421 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2022-10-16 17:47:37,421 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:37,421 INFO L195 NwaCegarLoop]: trace histogram [13, 12, 12, 12, 12, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 17:47:37,455 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 17:47:37,634 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:37,635 INFO L420 AbstractCegarLoop]: === Iteration 11 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:37,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:37,636 INFO L85 PathProgramCache]: Analyzing trace with hash 1383014436, now seen corresponding path program 4 times [2022-10-16 17:47:37,636 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:37,637 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490346137] [2022-10-16 17:47:37,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:37,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:37,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:38,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2022-10-16 17:47:38,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:38,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:38,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:38,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:38,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:38,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:38,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:38,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:38,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:38,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:38,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:38,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:38,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:38,553 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 360 refuted. 0 times theorem prover too weak. 81 trivial. 0 not checked. [2022-10-16 17:47:38,553 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:38,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490346137] [2022-10-16 17:47:38,554 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1490346137] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:38,554 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1437526958] [2022-10-16 17:47:38,554 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:47:38,554 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:38,555 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:38,556 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:47:38,579 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-10-16 17:47:38,622 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:47:38,622 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:38,624 INFO L263 TraceCheckSpWp]: Trace formula consists of 205 conjuncts, 28 conjunts are in the unsatisfiable core [2022-10-16 17:47:38,629 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:38,825 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 354 refuted. 0 times theorem prover too weak. 87 trivial. 0 not checked. [2022-10-16 17:47:38,825 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:40,632 INFO L134 CoverageAnalysis]: Checked inductivity of 453 backedges. 12 proven. 420 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2022-10-16 17:47:40,633 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1437526958] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:40,633 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:40,633 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [24, 23, 29] total 41 [2022-10-16 17:47:40,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909508238] [2022-10-16 17:47:40,634 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:40,635 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 41 states [2022-10-16 17:47:40,635 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:40,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 41 interpolants. [2022-10-16 17:47:40,636 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=304, Invalid=1336, Unknown=0, NotChecked=0, Total=1640 [2022-10-16 17:47:40,637 INFO L87 Difference]: Start difference. First operand 638 states and 677 transitions. Second operand has 41 states, 38 states have (on average 2.763157894736842) internal successors, (105), 32 states have internal predecessors, (105), 20 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) [2022-10-16 17:47:41,047 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:41,048 INFO L93 Difference]: Finished difference Result 729 states and 767 transitions. [2022-10-16 17:47:41,048 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2022-10-16 17:47:41,048 INFO L78 Accepts]: Start accepts. Automaton has has 41 states, 38 states have (on average 2.763157894736842) internal successors, (105), 32 states have internal predecessors, (105), 20 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) Word has length 99 [2022-10-16 17:47:41,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:41,053 INFO L225 Difference]: With dead ends: 729 [2022-10-16 17:47:41,053 INFO L226 Difference]: Without dead ends: 601 [2022-10-16 17:47:41,055 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 248 GetRequests, 178 SyntacticMatches, 15 SemanticMatches, 55 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1154 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=662, Invalid=2530, Unknown=0, NotChecked=0, Total=3192 [2022-10-16 17:47:41,056 INFO L413 NwaCegarLoop]: 46 mSDtfsCounter, 438 mSDsluCounter, 470 mSDsCounter, 0 mSdLazyCounter, 247 mSolverCounterSat, 140 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 446 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 387 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 140 IncrementalHoareTripleChecker+Valid, 247 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:41,056 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [446 Valid, 516 Invalid, 387 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [140 Valid, 247 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:47:41,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 601 states. [2022-10-16 17:47:41,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 601 to 551. [2022-10-16 17:47:41,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 551 states, 440 states have (on average 1.0704545454545455) internal successors, (471), 435 states have internal predecessors, (471), 24 states have call successors, (24), 23 states have call predecessors, (24), 85 states have return successors, (92), 92 states have call predecessors, (92), 23 states have call successors, (92) [2022-10-16 17:47:41,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 551 states to 551 states and 587 transitions. [2022-10-16 17:47:41,084 INFO L78 Accepts]: Start accepts. Automaton has 551 states and 587 transitions. Word has length 99 [2022-10-16 17:47:41,084 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:41,084 INFO L495 AbstractCegarLoop]: Abstraction has 551 states and 587 transitions. [2022-10-16 17:47:41,085 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 41 states, 38 states have (on average 2.763157894736842) internal successors, (105), 32 states have internal predecessors, (105), 20 states have call successors, (21), 10 states have call predecessors, (21), 8 states have return successors, (20), 7 states have call predecessors, (20), 10 states have call successors, (20) [2022-10-16 17:47:41,085 INFO L276 IsEmpty]: Start isEmpty. Operand 551 states and 587 transitions. [2022-10-16 17:47:41,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2022-10-16 17:47:41,086 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:41,087 INFO L195 NwaCegarLoop]: trace histogram [23, 23, 23, 22, 22, 1, 1, 1, 1] [2022-10-16 17:47:41,116 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-10-16 17:47:41,301 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-10-16 17:47:41,302 INFO L420 AbstractCegarLoop]: === Iteration 12 === Targeting idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:41,303 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:41,303 INFO L85 PathProgramCache]: Analyzing trace with hash 848460513, now seen corresponding path program 4 times [2022-10-16 17:47:41,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:41,303 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362409533] [2022-10-16 17:47:41,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:41,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:41,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:42,731 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:42,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:42,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362409533] [2022-10-16 17:47:42,732 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [362409533] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:42,732 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1708073861] [2022-10-16 17:47:42,732 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-10-16 17:47:42,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:42,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:42,734 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:47:42,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-10-16 17:47:42,816 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-10-16 17:47:42,817 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:42,819 INFO L263 TraceCheckSpWp]: Trace formula consists of 234 conjuncts, 48 conjunts are in the unsatisfiable core [2022-10-16 17:47:42,831 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:43,047 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:43,047 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:45,233 INFO L134 CoverageAnalysis]: Checked inductivity of 1243 backedges. 0 proven. 1243 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-10-16 17:47:45,233 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1708073861] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:45,233 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:45,234 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [48, 48, 48] total 98 [2022-10-16 17:47:45,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713295380] [2022-10-16 17:47:45,234 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:45,235 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-10-16 17:47:45,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:45,236 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-10-16 17:47:45,239 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2360, Invalid=7342, Unknown=0, NotChecked=0, Total=9702 [2022-10-16 17:47:45,240 INFO L87 Difference]: Start difference. First operand 551 states and 587 transitions. Second operand has 99 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 52 states have internal predecessors, (192), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:45,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:45,934 INFO L93 Difference]: Finished difference Result 566 states and 587 transitions. [2022-10-16 17:47:45,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2022-10-16 17:47:45,935 INFO L78 Accepts]: Start accepts. Automaton has has 99 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 52 states have internal predecessors, (192), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 117 [2022-10-16 17:47:45,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:45,939 INFO L225 Difference]: With dead ends: 566 [2022-10-16 17:47:45,939 INFO L226 Difference]: Without dead ends: 565 [2022-10-16 17:47:45,944 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 297 GetRequests, 183 SyntacticMatches, 0 SemanticMatches, 114 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3218 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=3827, Invalid=9513, Unknown=0, NotChecked=0, Total=13340 [2022-10-16 17:47:45,945 INFO L413 NwaCegarLoop]: 71 mSDtfsCounter, 591 mSDsluCounter, 442 mSDsCounter, 0 mSdLazyCounter, 292 mSolverCounterSat, 170 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 591 SdHoareTripleChecker+Valid, 513 SdHoareTripleChecker+Invalid, 462 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 170 IncrementalHoareTripleChecker+Valid, 292 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:45,946 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [591 Valid, 513 Invalid, 462 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [170 Valid, 292 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:47:45,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 565 states. [2022-10-16 17:47:45,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 565 to 550. [2022-10-16 17:47:45,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 440 states have (on average 1.0681818181818181) internal successors, (470), 434 states have internal predecessors, (470), 24 states have call successors, (24), 23 states have call predecessors, (24), 85 states have return successors, (92), 92 states have call predecessors, (92), 23 states have call successors, (92) [2022-10-16 17:47:45,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 586 transitions. [2022-10-16 17:47:45,973 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 586 transitions. Word has length 117 [2022-10-16 17:47:45,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:45,974 INFO L495 AbstractCegarLoop]: Abstraction has 550 states and 586 transitions. [2022-10-16 17:47:45,974 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 95 states have (on average 2.0210526315789474) internal successors, (192), 52 states have internal predecessors, (192), 48 states have call successors, (48), 47 states have call predecessors, (48), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-10-16 17:47:45,974 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 586 transitions. [2022-10-16 17:47:45,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2022-10-16 17:47:45,976 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:45,977 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 7, 7, 7, 6, 6, 1, 1, 1, 1, 1] [2022-10-16 17:47:46,016 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:46,190 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:46,191 INFO L420 AbstractCegarLoop]: === Iteration 13 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:46,191 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:46,192 INFO L85 PathProgramCache]: Analyzing trace with hash -478542937, now seen corresponding path program 5 times [2022-10-16 17:47:46,192 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:46,192 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1481433720] [2022-10-16 17:47:46,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:46,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:46,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:46,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2022-10-16 17:47:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:46,520 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:46,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:46,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:46,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:46,662 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:46,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:46,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:46,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:46,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:46,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:46,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:46,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:46,806 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 15 proven. 99 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-10-16 17:47:46,807 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:46,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1481433720] [2022-10-16 17:47:46,807 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1481433720] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:46,807 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463669975] [2022-10-16 17:47:46,807 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-10-16 17:47:46,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:46,808 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:46,811 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:47:46,830 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-10-16 17:47:46,899 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 16 check-sat command(s) [2022-10-16 17:47:46,899 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:46,900 INFO L263 TraceCheckSpWp]: Trace formula consists of 232 conjuncts, 15 conjunts are in the unsatisfiable core [2022-10-16 17:47:46,903 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:46,975 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-10-16 17:47:46,975 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:47:48,267 INFO L134 CoverageAnalysis]: Checked inductivity of 654 backedges. 0 proven. 99 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-10-16 17:47:48,267 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463669975] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:47:48,267 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:47:48,267 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 32 [2022-10-16 17:47:48,268 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1498667944] [2022-10-16 17:47:48,268 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:47:48,268 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2022-10-16 17:47:48,269 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:47:48,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2022-10-16 17:47:48,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=273, Invalid=783, Unknown=0, NotChecked=0, Total=1056 [2022-10-16 17:47:48,270 INFO L87 Difference]: Start difference. First operand 550 states and 586 transitions. Second operand has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 17:47:48,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:47:48,646 INFO L93 Difference]: Finished difference Result 1267 states and 1458 transitions. [2022-10-16 17:47:48,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-10-16 17:47:48,647 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) Word has length 114 [2022-10-16 17:47:48,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:47:48,653 INFO L225 Difference]: With dead ends: 1267 [2022-10-16 17:47:48,654 INFO L226 Difference]: Without dead ends: 1266 [2022-10-16 17:47:48,656 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 283 GetRequests, 224 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1365 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=751, Invalid=2909, Unknown=0, NotChecked=0, Total=3660 [2022-10-16 17:47:48,657 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 64 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 63 SdHoareTripleChecker+Invalid, 149 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-10-16 17:47:48,657 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 63 Invalid, 149 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-10-16 17:47:48,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1266 states. [2022-10-16 17:47:48,696 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1266 to 1266. [2022-10-16 17:47:48,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1266 states, 1016 states have (on average 1.029527559055118) internal successors, (1046), 1002 states have internal predecessors, (1046), 24 states have call successors, (24), 23 states have call predecessors, (24), 225 states have return successors, (240), 240 states have call predecessors, (240), 23 states have call successors, (240) [2022-10-16 17:47:48,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1266 states to 1266 states and 1310 transitions. [2022-10-16 17:47:48,704 INFO L78 Accepts]: Start accepts. Automaton has 1266 states and 1310 transitions. Word has length 114 [2022-10-16 17:47:48,705 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:47:48,705 INFO L495 AbstractCegarLoop]: Abstraction has 1266 states and 1310 transitions. [2022-10-16 17:47:48,705 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 32 states have (on average 2.125) internal successors, (68), 33 states have internal predecessors, (68), 1 states have call successors, (2), 1 states have call predecessors, (2), 15 states have return successors, (15), 15 states have call predecessors, (15), 1 states have call successors, (15) [2022-10-16 17:47:48,706 INFO L276 IsEmpty]: Start isEmpty. Operand 1266 states and 1310 transitions. [2022-10-16 17:47:48,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2022-10-16 17:47:48,710 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:47:48,710 INFO L195 NwaCegarLoop]: trace histogram [16, 15, 15, 15, 15, 15, 15, 15, 14, 14, 1, 1, 1, 1, 1] [2022-10-16 17:47:48,742 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-10-16 17:47:48,924 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2022-10-16 17:47:48,925 INFO L420 AbstractCegarLoop]: === Iteration 14 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:47:48,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:47:48,926 INFO L85 PathProgramCache]: Analyzing trace with hash -1214835929, now seen corresponding path program 6 times [2022-10-16 17:47:48,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:47:48,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1664183443] [2022-10-16 17:47:48,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:47:48,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:47:48,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:49,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2022-10-16 17:47:49,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:49,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:49,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:49,935 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:50,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:50,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:50,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:50,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:50,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:50,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:51,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:51,108 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:51,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:51,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:51,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:51,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:51,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:51,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:51,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:51,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:51,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:47:51,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:47:51,466 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 15 proven. 511 refuted. 0 times theorem prover too weak. 540 trivial. 0 not checked. [2022-10-16 17:47:51,466 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:47:51,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1664183443] [2022-10-16 17:47:51,467 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1664183443] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:47:51,467 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [453386707] [2022-10-16 17:47:51,467 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-10-16 17:47:51,468 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:47:51,468 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:47:51,469 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:47:51,495 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-10-16 17:47:51,597 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 16 check-sat command(s) [2022-10-16 17:47:51,598 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-10-16 17:47:51,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 304 conjuncts, 31 conjunts are in the unsatisfiable core [2022-10-16 17:47:51,605 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:47:51,751 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-10-16 17:47:51,751 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:48:03,522 INFO L134 CoverageAnalysis]: Checked inductivity of 1066 backedges. 0 proven. 511 refuted. 0 times theorem prover too weak. 555 trivial. 0 not checked. [2022-10-16 17:48:03,522 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [453386707] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:48:03,522 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:48:03,523 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 64 [2022-10-16 17:48:03,523 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [752753895] [2022-10-16 17:48:03,523 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:48:03,524 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2022-10-16 17:48:03,524 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:48:03,525 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2022-10-16 17:48:03,527 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1057, Invalid=3103, Unknown=0, NotChecked=0, Total=4160 [2022-10-16 17:48:03,527 INFO L87 Difference]: Start difference. First operand 1266 states and 1310 transitions. Second operand has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-10-16 17:48:04,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:48:04,472 INFO L93 Difference]: Finished difference Result 3059 states and 3470 transitions. [2022-10-16 17:48:04,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 63 states. [2022-10-16 17:48:04,473 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) Word has length 154 [2022-10-16 17:48:04,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:48:04,481 INFO L225 Difference]: With dead ends: 3059 [2022-10-16 17:48:04,481 INFO L226 Difference]: Without dead ends: 1472 [2022-10-16 17:48:04,489 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 427 GetRequests, 304 SyntacticMatches, 0 SemanticMatches, 123 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6405 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=3039, Invalid=12461, Unknown=0, NotChecked=0, Total=15500 [2022-10-16 17:48:04,490 INFO L413 NwaCegarLoop]: 7 mSDtfsCounter, 128 mSDsluCounter, 62 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 159 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 222 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-10-16 17:48:04,490 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [159 Valid, 69 Invalid, 222 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-10-16 17:48:04,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1472 states. [2022-10-16 17:48:04,537 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1472 to 1472. [2022-10-16 17:48:04,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1472 states, 1185 states have (on average 1.019409282700422) internal successors, (1208), 1164 states have internal predecessors, (1208), 24 states have call successors, (24), 23 states have call predecessors, (24), 262 states have return successors, (284), 284 states have call predecessors, (284), 23 states have call successors, (284) [2022-10-16 17:48:04,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1472 states to 1472 states and 1516 transitions. [2022-10-16 17:48:04,547 INFO L78 Accepts]: Start accepts. Automaton has 1472 states and 1516 transitions. Word has length 154 [2022-10-16 17:48:04,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:48:04,548 INFO L495 AbstractCegarLoop]: Abstraction has 1472 states and 1516 transitions. [2022-10-16 17:48:04,548 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 64 states have (on average 2.0625) internal successors, (132), 65 states have internal predecessors, (132), 1 states have call successors, (2), 1 states have call predecessors, (2), 31 states have return successors, (31), 31 states have call predecessors, (31), 1 states have call successors, (31) [2022-10-16 17:48:04,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1472 states and 1516 transitions. [2022-10-16 17:48:04,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2022-10-16 17:48:04,568 INFO L187 NwaCegarLoop]: Found error trace [2022-10-16 17:48:04,568 INFO L195 NwaCegarLoop]: trace histogram [55, 54, 54, 54, 54, 31, 31, 31, 30, 30, 1, 1, 1, 1, 1] [2022-10-16 17:48:04,613 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-10-16 17:48:04,782 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2022-10-16 17:48:04,782 INFO L420 AbstractCegarLoop]: === Iteration 15 === Targeting idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW] === [2022-10-16 17:48:04,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-10-16 17:48:04,783 INFO L85 PathProgramCache]: Analyzing trace with hash 1980487428, now seen corresponding path program 7 times [2022-10-16 17:48:04,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-10-16 17:48:04,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617113743] [2022-10-16 17:48:04,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-10-16 17:48:04,784 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-10-16 17:48:04,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:06,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2022-10-16 17:48:06,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:07,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:07,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:08,750 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:08,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:09,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:09,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:10,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:10,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:11,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:11,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:12,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:12,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:12,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:13,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:13,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:13,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:14,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:14,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:14,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:15,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:15,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:15,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:15,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:15,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:15,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:16,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:16,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:16,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:16,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:17,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:17,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:17,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:17,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:17,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:18,095 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:18,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:18,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:18,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:18,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:18,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:18,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:18,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:18,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:18,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:18,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:18,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:18,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:19,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:19,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:19,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:19,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:19,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:19,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:19,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2022-10-16 17:48:19,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:19,364 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 54 proven. 2295 refuted. 0 times theorem prover too weak. 7209 trivial. 0 not checked. [2022-10-16 17:48:19,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-10-16 17:48:19,364 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617113743] [2022-10-16 17:48:19,365 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [617113743] provided 0 perfect and 1 imperfect interpolant sequences [2022-10-16 17:48:19,365 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1813645650] [2022-10-16 17:48:19,365 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-10-16 17:48:19,365 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-10-16 17:48:19,365 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-10-16 17:48:19,370 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-10-16 17:48:19,386 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-10-16 17:48:19,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-10-16 17:48:19,688 INFO L263 TraceCheckSpWp]: Trace formula consists of 799 conjuncts, 112 conjunts are in the unsatisfiable core [2022-10-16 17:48:19,699 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-10-16 17:48:23,974 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 3675 proven. 3648 refuted. 0 times theorem prover too weak. 2235 trivial. 0 not checked. [2022-10-16 17:48:23,974 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-10-16 17:50:37,203 INFO L134 CoverageAnalysis]: Checked inductivity of 9558 backedges. 3675 proven. 5418 refuted. 0 times theorem prover too weak. 465 trivial. 0 not checked. [2022-10-16 17:50:37,204 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1813645650] provided 0 perfect and 2 imperfect interpolant sequences [2022-10-16 17:50:37,204 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-10-16 17:50:37,204 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 83, 113] total 226 [2022-10-16 17:50:37,205 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705020781] [2022-10-16 17:50:37,205 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-10-16 17:50:37,207 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 226 states [2022-10-16 17:50:37,207 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-10-16 17:50:37,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 226 interpolants. [2022-10-16 17:50:37,217 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5310, Invalid=45540, Unknown=0, NotChecked=0, Total=50850 [2022-10-16 17:50:37,218 INFO L87 Difference]: Start difference. First operand 1472 states and 1516 transitions. Second operand has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) [2022-10-16 17:50:38,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-10-16 17:50:38,906 INFO L93 Difference]: Finished difference Result 1472 states and 1516 transitions. [2022-10-16 17:50:38,908 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-10-16 17:50:38,909 INFO L78 Accepts]: Start accepts. Automaton has has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) Word has length 429 [2022-10-16 17:50:38,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-10-16 17:50:38,911 INFO L225 Difference]: With dead ends: 1472 [2022-10-16 17:50:38,911 INFO L226 Difference]: Without dead ends: 0 [2022-10-16 17:50:38,922 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 1005 GetRequests, 726 SyntacticMatches, 31 SemanticMatches, 248 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32722 ImplicationChecksByTransitivity, 12.7s TimeCoverageRelationStatistics Valid=8178, Invalid=54072, Unknown=0, NotChecked=0, Total=62250 [2022-10-16 17:50:38,923 INFO L413 NwaCegarLoop]: 26 mSDtfsCounter, 107 mSDsluCounter, 94 mSDsCounter, 0 mSdLazyCounter, 2962 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 107 SdHoareTripleChecker+Valid, 120 SdHoareTripleChecker+Invalid, 2971 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 2962 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2022-10-16 17:50:38,924 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [107 Valid, 120 Invalid, 2971 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 2962 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2022-10-16 17:50:38,925 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-10-16 17:50:38,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-10-16 17:50:38,926 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 17:50:38,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-10-16 17:50:38,926 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 429 [2022-10-16 17:50:38,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-10-16 17:50:38,927 INFO L495 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-10-16 17:50:38,928 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 226 states, 224 states have (on average 2.5669642857142856) internal successors, (575), 178 states have internal predecessors, (575), 82 states have call successors, (83), 49 states have call predecessors, (83), 62 states have return successors, (93), 62 states have call predecessors, (93), 34 states have call successors, (93) [2022-10-16 17:50:38,928 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-10-16 17:50:38,928 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-10-16 17:50:38,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 4 remaining) [2022-10-16 17:50:38,932 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 4 remaining) [2022-10-16 17:50:38,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 4 remaining) [2022-10-16 17:50:38,933 INFO L805 garLoopResultBuilder]: Registering result SAFE for location idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (0 of 4 remaining) [2022-10-16 17:50:38,974 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-10-16 17:50:39,146 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-10-16 17:50:39,149 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2022-10-16 17:50:39,609 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2022-10-16 17:50:39,610 INFO L899 garLoopResultBuilder]: For program point L-1(line -1) no Hoare annotation was computed. [2022-10-16 17:50:39,610 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2022-10-16 17:50:39,610 INFO L899 garLoopResultBuilder]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2022-10-16 17:50:39,610 INFO L899 garLoopResultBuilder]: For program point L15(line 15) no Hoare annotation was computed. [2022-10-16 17:50:39,610 INFO L899 garLoopResultBuilder]: For program point L14(lines 14 16) no Hoare annotation was computed. [2022-10-16 17:50:39,610 INFO L895 garLoopResultBuilder]: At program point L13(line 13) the Hoare annotation is: (= |ULTIMATE.start_main_~input~0#1| 15) [2022-10-16 17:50:39,611 INFO L899 garLoopResultBuilder]: For program point L13-1(line 13) no Hoare annotation was computed. [2022-10-16 17:50:39,611 INFO L899 garLoopResultBuilder]: For program point L11(lines 11 17) no Hoare annotation was computed. [2022-10-16 17:50:39,611 INFO L899 garLoopResultBuilder]: For program point idErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:50:39,611 INFO L899 garLoopResultBuilder]: For program point idErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:50:39,611 INFO L899 garLoopResultBuilder]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2022-10-16 17:50:39,611 INFO L899 garLoopResultBuilder]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2022-10-16 17:50:39,612 INFO L902 garLoopResultBuilder]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2022-10-16 17:50:39,612 INFO L899 garLoopResultBuilder]: For program point idErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:50:39,612 INFO L899 garLoopResultBuilder]: For program point idErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 8) no Hoare annotation was computed. [2022-10-16 17:50:39,612 INFO L899 garLoopResultBuilder]: For program point L8(line 8) no Hoare annotation was computed. [2022-10-16 17:50:39,612 INFO L899 garLoopResultBuilder]: For program point L7(line 7) no Hoare annotation was computed. [2022-10-16 17:50:39,612 INFO L899 garLoopResultBuilder]: For program point L8-1(line 8) no Hoare annotation was computed. [2022-10-16 17:50:39,614 INFO L895 garLoopResultBuilder]: At program point L8-2(line 8) the Hoare annotation is: (let ((.cse0 (= |id_#in~x| id_~x))) (and (or (= id_~x 15) (not (<= |id_#in~x| 15)) (not (<= 15 |id_#in~x|))) (or (not (<= |id_#in~x| 0)) (not (<= 0 |id_#in~x|))) (or .cse0 (not (<= 2 |id_#in~x|)) (not (<= |id_#in~x| 14))) (or (not (<= |id_#in~x| 1)) .cse0 (not (<= 1 |id_#in~x|))))) [2022-10-16 17:50:39,614 INFO L899 garLoopResultBuilder]: For program point L8-3(line 8) no Hoare annotation was computed. [2022-10-16 17:50:39,614 INFO L899 garLoopResultBuilder]: For program point L8-4(line 8) no Hoare annotation was computed. [2022-10-16 17:50:39,614 INFO L899 garLoopResultBuilder]: For program point L8-5(line 8) no Hoare annotation was computed. [2022-10-16 17:50:39,620 INFO L444 BasicCegarLoop]: Path program histogram: [7, 4, 1, 1, 1, 1] [2022-10-16 17:50:39,623 INFO L178 ceAbstractionStarter]: Computing trace abstraction results [2022-10-16 17:50:39,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.10 05:50:39 BoogieIcfgContainer [2022-10-16 17:50:39,629 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-10-16 17:50:39,629 INFO L158 Benchmark]: Toolchain (without parser) took 194547.80ms. Allocated memory was 153.1MB in the beginning and 891.3MB in the end (delta: 738.2MB). Free memory was 128.1MB in the beginning and 717.3MB in the end (delta: -589.2MB). Peak memory consumption was 150.4MB. Max. memory is 8.0GB. [2022-10-16 17:50:39,630 INFO L158 Benchmark]: CDTParser took 0.24ms. Allocated memory is still 153.1MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:50:39,631 INFO L158 Benchmark]: CACSL2BoogieTranslator took 229.33ms. Allocated memory is still 153.1MB. Free memory was 127.9MB in the beginning and 118.8MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:50:39,632 INFO L158 Benchmark]: Boogie Procedure Inliner took 38.59ms. Allocated memory is still 153.1MB. Free memory was 118.6MB in the beginning and 117.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-10-16 17:50:39,633 INFO L158 Benchmark]: Boogie Preprocessor took 21.19ms. Allocated memory is still 153.1MB. Free memory was 117.2MB in the beginning and 116.4MB in the end (delta: 842.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-10-16 17:50:39,633 INFO L158 Benchmark]: RCFGBuilder took 441.12ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 106.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-10-16 17:50:39,633 INFO L158 Benchmark]: TraceAbstraction took 193801.53ms. Allocated memory was 153.1MB in the beginning and 891.3MB in the end (delta: 738.2MB). Free memory was 106.3MB in the beginning and 717.3MB in the end (delta: -610.9MB). Peak memory consumption was 128.4MB. Max. memory is 8.0GB. [2022-10-16 17:50:39,639 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24ms. Allocated memory is still 153.1MB. Free memory is still 122.4MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 229.33ms. Allocated memory is still 153.1MB. Free memory was 127.9MB in the beginning and 118.8MB in the end (delta: 9.1MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 38.59ms. Allocated memory is still 153.1MB. Free memory was 118.6MB in the beginning and 117.2MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 21.19ms. Allocated memory is still 153.1MB. Free memory was 117.2MB in the beginning and 116.4MB in the end (delta: 842.0kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 441.12ms. Allocated memory is still 153.1MB. Free memory was 116.4MB in the beginning and 106.9MB in the end (delta: 9.4MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 193801.53ms. Allocated memory was 153.1MB in the beginning and 891.3MB in the end (delta: 738.2MB). Free memory was 106.3MB in the beginning and 717.3MB in the end (delta: -610.9MB). Peak memory consumption was 128.4MB. 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: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 8]: 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, 23 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 193.7s, OverallIterations: 15, TraceHistogramMax: 55, PathProgramHistogramMax: 7, EmptinessCheckTime: 0.1s, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 3026 SdHoareTripleChecker+Valid, 3.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2951 mSDsluCounter, 3081 SdHoareTripleChecker+Invalid, 2.6s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 2677 mSDsCounter, 897 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 5605 IncrementalHoareTripleChecker+Invalid, 6502 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 897 mSolverCounterUnsat, 404 mSDtfsCounter, 5605 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2974 GetRequests, 2035 SyntacticMatches, 51 SemanticMatches, 888 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48468 ImplicationChecksByTransitivity, 21.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1472occurred in iteration=14, InterpolantAutomatonStates: 413, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 15 MinimizatonAttempts, 157 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 49 PreInvPairs, 49 NumberOfFragments, 50 HoareAnnotationTreeSize, 49 FomulaSimplifications, 768 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 1163 FormulaSimplificationTreeSizeReductionInter, 0.4s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 180.1s InterpolantComputationTime, 2389 NumberOfCodeBlocks, 2344 NumberOfCodeBlocksAsserted, 73 NumberOfCheckSat, 3502 ConstructedInterpolants, 0 QuantifiedInterpolants, 9676 SizeOfPredicates, 120 NumberOfNonLiveVariables, 2316 ConjunctsInSsa, 311 ConjunctsInUnsatCore, 38 InterpolantComputations, 4 PerfectInterpolantSequences, 21597/41135 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 4 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-10-16 17:50:39,726 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...