./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound5.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 3061b6dc Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound5.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6d288c71d1b2e69759b6f9526e6975c86927bb09c8445c07388947e8f3491289 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.dk.eval-assert-order-craig-3061b6d-m [2024-11-19 10:38:54,589 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 10:38:54,674 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-19 10:38:54,679 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 10:38:54,681 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 10:38:54,713 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 10:38:54,713 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 10:38:54,714 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 10:38:54,714 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 10:38:54,715 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 10:38:54,715 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 10:38:54,716 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 10:38:54,717 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 10:38:54,719 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 10:38:54,719 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 10:38:54,719 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 10:38:54,720 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 10:38:54,720 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 10:38:54,720 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 10:38:54,721 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 10:38:54,721 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 10:38:54,724 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 10:38:54,724 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 10:38:54,725 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 10:38:54,725 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 10:38:54,725 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-19 10:38:54,726 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-19 10:38:54,726 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 10:38:54,726 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 10:38:54,726 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 10:38:54,727 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 10:38:54,727 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 10:38:54,727 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 10:38:54,728 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 10:38:54,728 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:38:54,728 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 10:38:54,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 10:38:54,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 10:38:54,730 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 10:38:54,730 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 10:38:54,730 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 10:38:54,731 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 10:38:54,731 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 10:38:54,731 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 10:38:54,732 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6d288c71d1b2e69759b6f9526e6975c86927bb09c8445c07388947e8f3491289 [2024-11-19 10:38:54,971 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 10:38:54,994 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 10:38:54,996 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 10:38:54,997 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 10:38:54,998 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 10:38:54,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound5.c [2024-11-19 10:38:56,375 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 10:38:56,545 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 10:38:56,545 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/egcd3-ll_unwindbound5.c [2024-11-19 10:38:56,553 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8e8080d/b7cc3714083d48328fe15b631c5f41b9/FLAG607ce81c1 [2024-11-19 10:38:56,564 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cb8e8080d/b7cc3714083d48328fe15b631c5f41b9 [2024-11-19 10:38:56,566 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 10:38:56,567 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 10:38:56,568 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 10:38:56,568 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 10:38:56,572 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 10:38:56,573 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,574 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@237afa37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56, skipping insertion in model container [2024-11-19 10:38:56,574 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,589 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 10:38:56,775 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:38:56,783 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 10:38:56,803 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 10:38:56,817 INFO L204 MainTranslator]: Completed translation [2024-11-19 10:38:56,818 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56 WrapperNode [2024-11-19 10:38:56,818 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 10:38:56,819 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 10:38:56,819 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 10:38:56,819 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 10:38:56,825 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,831 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,855 INFO L138 Inliner]: procedures = 14, calls = 15, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 156 [2024-11-19 10:38:56,855 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 10:38:56,856 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 10:38:56,856 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 10:38:56,856 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 10:38:56,869 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,870 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,871 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,885 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-19 10:38:56,885 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,886 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,889 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,893 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,894 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,895 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,897 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 10:38:56,897 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 10:38:56,897 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 10:38:56,898 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 10:38:56,898 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (1/1) ... [2024-11-19 10:38:56,907 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 10:38:56,920 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:38:56,936 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 10:38:56,945 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 10:38:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 10:38:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-19 10:38:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-19 10:38:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 10:38:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 10:38:56,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 10:38:56,981 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-19 10:38:56,982 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-19 10:38:57,035 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 10:38:57,039 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 10:38:57,668 INFO L? ?]: Removed 138 outVars from TransFormulas that were not future-live. [2024-11-19 10:38:57,668 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 10:38:57,691 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 10:38:57,691 INFO L316 CfgBuilder]: Removed 3 assume(true) statements. [2024-11-19 10:38:57,692 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:38:57 BoogieIcfgContainer [2024-11-19 10:38:57,692 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 10:38:57,697 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 10:38:57,697 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 10:38:57,700 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 10:38:57,701 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 10:38:56" (1/3) ... [2024-11-19 10:38:57,702 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273dea84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:38:57, skipping insertion in model container [2024-11-19 10:38:57,702 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 10:38:56" (2/3) ... [2024-11-19 10:38:57,703 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273dea84 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 10:38:57, skipping insertion in model container [2024-11-19 10:38:57,703 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 10:38:57" (3/3) ... [2024-11-19 10:38:57,704 INFO L112 eAbstractionObserver]: Analyzing ICFG egcd3-ll_unwindbound5.c [2024-11-19 10:38:57,720 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 10:38:57,720 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 56 error locations. [2024-11-19 10:38:57,791 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 10:38:57,797 INFO L333 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, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, 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;@3b39ac86, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 10:38:57,797 INFO L334 AbstractCegarLoop]: Starting to check reachability of 56 error locations. [2024-11-19 10:38:57,802 INFO L276 IsEmpty]: Start isEmpty. Operand has 146 states, 80 states have (on average 1.8375) internal successors, (147), 136 states have internal predecessors, (147), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) [2024-11-19 10:38:57,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 10:38:57,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:38:57,809 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:38:57,810 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:38:57,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:38:57,816 INFO L85 PathProgramCache]: Analyzing trace with hash -2142177312, now seen corresponding path program 1 times [2024-11-19 10:38:57,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:38:57,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635310348] [2024-11-19 10:38:57,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:38:57,827 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:38:57,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:38:57,975 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 10:38:57,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:38:57,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635310348] [2024-11-19 10:38:57,978 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635310348] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:38:57,978 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1364463879] [2024-11-19 10:38:57,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:38:57,979 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:38:57,979 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:38:57,981 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) [2024-11-19 10:38:57,983 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-19 10:38:58,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:38:58,043 INFO L255 TraceCheckSpWp]: Trace formula consists of 59 conjuncts, 1 conjuncts are in the unsatisfiable core [2024-11-19 10:38:58,047 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:38:58,060 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-19 10:38:58,061 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:38:58,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1364463879] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:38:58,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:38:58,062 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [2] total 2 [2024-11-19 10:38:58,064 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1034446378] [2024-11-19 10:38:58,065 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:38:58,070 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-19 10:38:58,070 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:38:58,094 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-19 10:38:58,095 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 10:38:58,098 INFO L87 Difference]: Start difference. First operand has 146 states, 80 states have (on average 1.8375) internal successors, (147), 136 states have internal predecessors, (147), 7 states have call successors, (7), 2 states have call predecessors, (7), 2 states have return successors, (7), 7 states have call predecessors, (7), 7 states have call successors, (7) Second operand has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:38:58,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:38:58,137 INFO L93 Difference]: Finished difference Result 288 states and 324 transitions. [2024-11-19 10:38:58,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-19 10:38:58,140 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 15 [2024-11-19 10:38:58,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:38:58,150 INFO L225 Difference]: With dead ends: 288 [2024-11-19 10:38:58,150 INFO L226 Difference]: Without dead ends: 139 [2024-11-19 10:38:58,155 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-19 10:38:58,161 INFO L432 NwaCegarLoop]: 155 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:38:58,162 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 155 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:38:58,180 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-19 10:38:58,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-19 10:38:58,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 75 states have (on average 1.8133333333333332) internal successors, (136), 130 states have internal predecessors, (136), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:38:58,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 148 transitions. [2024-11-19 10:38:58,214 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 148 transitions. Word has length 15 [2024-11-19 10:38:58,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:38:58,215 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 148 transitions. [2024-11-19 10:38:58,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 5.0) internal successors, (10), 2 states have internal predecessors, (10), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:38:58,216 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 148 transitions. [2024-11-19 10:38:58,217 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-11-19 10:38:58,217 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:38:58,217 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:38:58,237 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-19 10:38:58,421 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2024-11-19 10:38:58,422 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:38:58,423 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:38:58,423 INFO L85 PathProgramCache]: Analyzing trace with hash -1383858817, now seen corresponding path program 1 times [2024-11-19 10:38:58,423 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:38:58,423 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2030171160] [2024-11-19 10:38:58,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:38:58,424 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:38:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:38:58,548 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:38:58,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:38:58,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2030171160] [2024-11-19 10:38:58,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2030171160] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:38:58,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:38:58,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:38:58,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [696378294] [2024-11-19 10:38:58,550 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:38:58,550 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:38:58,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:38:58,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:38:58,553 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:38:58,553 INFO L87 Difference]: Start difference. First operand 139 states and 148 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:38:58,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:38:58,634 INFO L93 Difference]: Finished difference Result 179 states and 189 transitions. [2024-11-19 10:38:58,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:38:58,635 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 15 [2024-11-19 10:38:58,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:38:58,636 INFO L225 Difference]: With dead ends: 179 [2024-11-19 10:38:58,637 INFO L226 Difference]: Without dead ends: 178 [2024-11-19 10:38:58,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:38:58,638 INFO L432 NwaCegarLoop]: 141 mSDtfsCounter, 45 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 45 SdHoareTripleChecker+Valid, 412 SdHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:38:58,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [45 Valid, 412 Invalid, 23 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:38:58,641 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-11-19 10:38:58,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 141. [2024-11-19 10:38:58,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 141 states, 77 states have (on average 1.7922077922077921) internal successors, (138), 132 states have internal predecessors, (138), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:38:58,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 141 states to 141 states and 150 transitions. [2024-11-19 10:38:58,655 INFO L78 Accepts]: Start accepts. Automaton has 141 states and 150 transitions. Word has length 15 [2024-11-19 10:38:58,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:38:58,657 INFO L471 AbstractCegarLoop]: Abstraction has 141 states and 150 transitions. [2024-11-19 10:38:58,657 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:38:58,661 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 150 transitions. [2024-11-19 10:38:58,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-11-19 10:38:58,662 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:38:58,662 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:38:58,662 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 10:38:58,662 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:38:58,663 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:38:58,663 INFO L85 PathProgramCache]: Analyzing trace with hash 50049677, now seen corresponding path program 1 times [2024-11-19 10:38:58,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:38:58,664 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134376817] [2024-11-19 10:38:58,664 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:38:58,664 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:38:58,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:38:58,758 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:38:58,758 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:38:58,758 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134376817] [2024-11-19 10:38:58,759 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134376817] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:38:58,759 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:38:58,760 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:38:58,760 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [342923319] [2024-11-19 10:38:58,760 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:38:58,760 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:38:58,761 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:38:58,761 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:38:58,761 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:38:58,762 INFO L87 Difference]: Start difference. First operand 141 states and 150 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:38:58,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:38:58,812 INFO L93 Difference]: Finished difference Result 172 states and 181 transitions. [2024-11-19 10:38:58,812 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:38:58,813 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-11-19 10:38:58,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:38:58,814 INFO L225 Difference]: With dead ends: 172 [2024-11-19 10:38:58,816 INFO L226 Difference]: Without dead ends: 143 [2024-11-19 10:38:58,817 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:38:58,818 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 8 mSDsluCounter, 271 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:38:58,818 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 415 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:38:58,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-11-19 10:38:58,829 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-11-19 10:38:58,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 79 states have (on average 1.7721518987341771) internal successors, (140), 134 states have internal predecessors, (140), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:38:58,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 152 transitions. [2024-11-19 10:38:58,831 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 152 transitions. Word has length 16 [2024-11-19 10:38:58,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:38:58,831 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 152 transitions. [2024-11-19 10:38:58,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:38:58,831 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 152 transitions. [2024-11-19 10:38:58,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-11-19 10:38:58,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:38:58,832 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:38:58,832 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 10:38:58,833 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:38:58,833 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:38:58,833 INFO L85 PathProgramCache]: Analyzing trace with hash 676324676, now seen corresponding path program 1 times [2024-11-19 10:38:58,834 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:38:58,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605367545] [2024-11-19 10:38:58,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:38:58,834 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:38:58,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:38:58,968 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:38:58,968 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:38:58,968 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605367545] [2024-11-19 10:38:58,968 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605367545] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:38:58,968 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:38:58,968 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 10:38:58,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [303737872] [2024-11-19 10:38:58,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:38:58,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 10:38:58,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:38:58,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 10:38:58,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:38:58,972 INFO L87 Difference]: Start difference. First operand 143 states and 152 transitions. Second operand has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:38:59,289 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:38:59,289 INFO L93 Difference]: Finished difference Result 241 states and 264 transitions. [2024-11-19 10:38:59,290 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 10:38:59,290 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-11-19 10:38:59,290 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:38:59,292 INFO L225 Difference]: With dead ends: 241 [2024-11-19 10:38:59,292 INFO L226 Difference]: Without dead ends: 213 [2024-11-19 10:38:59,294 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-19 10:38:59,295 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 253 mSDsluCounter, 294 mSDsCounter, 0 mSdLazyCounter, 228 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 391 SdHoareTripleChecker+Invalid, 236 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 228 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:38:59,295 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 391 Invalid, 236 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 228 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:38:59,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 213 states. [2024-11-19 10:38:59,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 213 to 144. [2024-11-19 10:38:59,316 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 80 states have (on average 1.7625) internal successors, (141), 135 states have internal predecessors, (141), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:38:59,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 153 transitions. [2024-11-19 10:38:59,317 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 153 transitions. Word has length 19 [2024-11-19 10:38:59,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:38:59,318 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 153 transitions. [2024-11-19 10:38:59,318 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:38:59,318 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 153 transitions. [2024-11-19 10:38:59,318 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2024-11-19 10:38:59,318 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:38:59,319 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:38:59,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 10:38:59,319 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:38:59,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:38:59,321 INFO L85 PathProgramCache]: Analyzing trace with hash -508773292, now seen corresponding path program 1 times [2024-11-19 10:38:59,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:38:59,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [921471971] [2024-11-19 10:38:59,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:38:59,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:38:59,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:38:59,412 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:38:59,413 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:38:59,413 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [921471971] [2024-11-19 10:38:59,413 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [921471971] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:38:59,413 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:38:59,414 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 10:38:59,414 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680581131] [2024-11-19 10:38:59,414 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:38:59,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 10:38:59,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:38:59,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 10:38:59,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:38:59,415 INFO L87 Difference]: Start difference. First operand 144 states and 153 transitions. Second operand has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:38:59,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:38:59,497 INFO L93 Difference]: Finished difference Result 208 states and 220 transitions. [2024-11-19 10:38:59,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 10:38:59,499 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 20 [2024-11-19 10:38:59,499 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:38:59,500 INFO L225 Difference]: With dead ends: 208 [2024-11-19 10:38:59,500 INFO L226 Difference]: Without dead ends: 206 [2024-11-19 10:38:59,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:38:59,501 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 128 mSDsluCounter, 403 mSDsCounter, 0 mSdLazyCounter, 62 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 538 SdHoareTripleChecker+Invalid, 65 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 62 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:38:59,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 538 Invalid, 65 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 62 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:38:59,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206 states. [2024-11-19 10:38:59,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206 to 163. [2024-11-19 10:38:59,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 99 states have (on average 1.7575757575757576) internal successors, (174), 154 states have internal predecessors, (174), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:38:59,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 186 transitions. [2024-11-19 10:38:59,513 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 186 transitions. Word has length 20 [2024-11-19 10:38:59,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:38:59,513 INFO L471 AbstractCegarLoop]: Abstraction has 163 states and 186 transitions. [2024-11-19 10:38:59,513 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.6) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:38:59,513 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 186 transitions. [2024-11-19 10:38:59,513 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-11-19 10:38:59,513 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:38:59,514 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:38:59,514 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 10:38:59,514 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:38:59,514 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:38:59,514 INFO L85 PathProgramCache]: Analyzing trace with hash 1407897195, now seen corresponding path program 1 times [2024-11-19 10:38:59,514 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:38:59,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [413316898] [2024-11-19 10:38:59,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:38:59,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:38:59,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:38:59,596 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:38:59,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:38:59,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [413316898] [2024-11-19 10:38:59,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [413316898] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:38:59,598 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:38:59,599 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 10:38:59,599 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1477210250] [2024-11-19 10:38:59,599 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:38:59,599 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 10:38:59,599 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:38:59,600 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 10:38:59,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:38:59,600 INFO L87 Difference]: Start difference. First operand 163 states and 186 transitions. Second operand has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:38:59,661 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:38:59,661 INFO L93 Difference]: Finished difference Result 316 states and 363 transitions. [2024-11-19 10:38:59,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:38:59,661 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 21 [2024-11-19 10:38:59,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:38:59,663 INFO L225 Difference]: With dead ends: 316 [2024-11-19 10:38:59,663 INFO L226 Difference]: Without dead ends: 167 [2024-11-19 10:38:59,664 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:38:59,665 INFO L432 NwaCegarLoop]: 140 mSDtfsCounter, 11 mSDsluCounter, 532 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 672 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:38:59,665 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 672 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:38:59,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-11-19 10:38:59,679 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-11-19 10:38:59,680 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.7281553398058251) internal successors, (178), 158 states have internal predecessors, (178), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-11-19 10:38:59,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 190 transitions. [2024-11-19 10:38:59,681 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 190 transitions. Word has length 21 [2024-11-19 10:38:59,681 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:38:59,681 INFO L471 AbstractCegarLoop]: Abstraction has 167 states and 190 transitions. [2024-11-19 10:38:59,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 2.8) internal successors, (14), 6 states have internal predecessors, (14), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:38:59,682 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 190 transitions. [2024-11-19 10:38:59,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 10:38:59,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:38:59,682 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:38:59,683 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 10:38:59,683 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr34ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:38:59,683 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:38:59,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1411929968, now seen corresponding path program 1 times [2024-11-19 10:38:59,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:38:59,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1942330997] [2024-11-19 10:38:59,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:38:59,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:38:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:38:59,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [296883973] [2024-11-19 10:38:59,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:38:59,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:38:59,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:38:59,708 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) [2024-11-19 10:38:59,710 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-19 10:38:59,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:38:59,761 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 10:38:59,771 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:38:59,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:38:59,809 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:38:59,809 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:38:59,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1942330997] [2024-11-19 10:38:59,810 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:38:59,810 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296883973] [2024-11-19 10:38:59,810 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296883973] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:38:59,810 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:38:59,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:38:59,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [383539700] [2024-11-19 10:38:59,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:38:59,811 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:38:59,811 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:38:59,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:38:59,811 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:38:59,812 INFO L87 Difference]: Start difference. First operand 167 states and 190 transitions. Second operand has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:00,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:00,068 INFO L93 Difference]: Finished difference Result 252 states and 292 transitions. [2024-11-19 10:39:00,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:39:00,069 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2024-11-19 10:39:00,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:00,070 INFO L225 Difference]: With dead ends: 252 [2024-11-19 10:39:00,070 INFO L226 Difference]: Without dead ends: 248 [2024-11-19 10:39:00,070 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:39:00,071 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 68 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 46 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 249 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 46 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:00,071 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 249 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 46 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:39:00,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2024-11-19 10:39:00,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 216. [2024-11-19 10:39:00,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 216 states, 148 states have (on average 1.7432432432432432) internal successors, (258), 203 states have internal predecessors, (258), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:39:00,080 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 216 states to 216 states and 278 transitions. [2024-11-19 10:39:00,081 INFO L78 Accepts]: Start accepts. Automaton has 216 states and 278 transitions. Word has length 25 [2024-11-19 10:39:00,081 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:00,081 INFO L471 AbstractCegarLoop]: Abstraction has 216 states and 278 transitions. [2024-11-19 10:39:00,081 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:00,082 INFO L276 IsEmpty]: Start isEmpty. Operand 216 states and 278 transitions. [2024-11-19 10:39:00,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2024-11-19 10:39:00,082 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:00,082 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:00,098 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-19 10:39:00,286 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2024-11-19 10:39:00,287 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:00,287 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:00,288 INFO L85 PathProgramCache]: Analyzing trace with hash -1411930638, now seen corresponding path program 1 times [2024-11-19 10:39:00,288 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:00,288 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224956813] [2024-11-19 10:39:00,288 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:00,288 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:00,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:00,393 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:00,394 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:00,394 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [224956813] [2024-11-19 10:39:00,394 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [224956813] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:00,394 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:00,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 10:39:00,396 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [32007824] [2024-11-19 10:39:00,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:00,397 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:39:00,397 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:00,398 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:39:00,398 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 10:39:00,398 INFO L87 Difference]: Start difference. First operand 216 states and 278 transitions. Second operand has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:00,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:00,539 INFO L93 Difference]: Finished difference Result 220 states and 283 transitions. [2024-11-19 10:39:00,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 10:39:00,540 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 25 [2024-11-19 10:39:00,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:00,541 INFO L225 Difference]: With dead ends: 220 [2024-11-19 10:39:00,543 INFO L226 Difference]: Without dead ends: 217 [2024-11-19 10:39:00,544 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-11-19 10:39:00,544 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 350 mSDsluCounter, 412 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 350 SdHoareTripleChecker+Valid, 539 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:00,545 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [350 Valid, 539 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:39:00,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 217 states. [2024-11-19 10:39:00,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 217 to 190. [2024-11-19 10:39:00,553 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 125 states have (on average 1.72) internal successors, (215), 177 states have internal predecessors, (215), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:39:00,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 235 transitions. [2024-11-19 10:39:00,554 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 235 transitions. Word has length 25 [2024-11-19 10:39:00,554 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:00,554 INFO L471 AbstractCegarLoop]: Abstraction has 190 states and 235 transitions. [2024-11-19 10:39:00,555 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.5714285714285716) internal successors, (18), 8 states have internal predecessors, (18), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:00,555 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 235 transitions. [2024-11-19 10:39:00,555 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2024-11-19 10:39:00,555 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:00,555 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:00,556 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 10:39:00,556 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:00,556 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:00,556 INFO L85 PathProgramCache]: Analyzing trace with hash -820176736, now seen corresponding path program 1 times [2024-11-19 10:39:00,557 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:00,557 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [288415258] [2024-11-19 10:39:00,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:00,557 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:00,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:00,626 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:00,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:00,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [288415258] [2024-11-19 10:39:00,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [288415258] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:00,627 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:00,627 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 10:39:00,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1521732128] [2024-11-19 10:39:00,627 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:00,628 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:39:00,628 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:00,628 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:39:00,628 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-19 10:39:00,628 INFO L87 Difference]: Start difference. First operand 190 states and 235 transitions. Second operand has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:00,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:00,727 INFO L93 Difference]: Finished difference Result 386 states and 478 transitions. [2024-11-19 10:39:00,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-19 10:39:00,727 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 26 [2024-11-19 10:39:00,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:00,729 INFO L225 Difference]: With dead ends: 386 [2024-11-19 10:39:00,729 INFO L226 Difference]: Without dead ends: 214 [2024-11-19 10:39:00,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=42, Invalid=114, Unknown=0, NotChecked=0, Total=156 [2024-11-19 10:39:00,732 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 38 mSDsluCounter, 645 mSDsCounter, 0 mSdLazyCounter, 77 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 38 SdHoareTripleChecker+Valid, 778 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 77 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:00,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [38 Valid, 778 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 77 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:39:00,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 214 states. [2024-11-19 10:39:00,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 214 to 195. [2024-11-19 10:39:00,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 195 states, 130 states have (on average 1.7) internal successors, (221), 182 states have internal predecessors, (221), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:39:00,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 195 states to 195 states and 241 transitions. [2024-11-19 10:39:00,742 INFO L78 Accepts]: Start accepts. Automaton has 195 states and 241 transitions. Word has length 26 [2024-11-19 10:39:00,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:00,743 INFO L471 AbstractCegarLoop]: Abstraction has 195 states and 241 transitions. [2024-11-19 10:39:00,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 2.7142857142857144) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:00,743 INFO L276 IsEmpty]: Start isEmpty. Operand 195 states and 241 transitions. [2024-11-19 10:39:00,743 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2024-11-19 10:39:00,743 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:00,743 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:00,744 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 10:39:00,744 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:00,744 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:00,744 INFO L85 PathProgramCache]: Analyzing trace with hash 344971506, now seen corresponding path program 1 times [2024-11-19 10:39:00,744 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:00,744 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1961863662] [2024-11-19 10:39:00,744 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:00,745 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:00,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:00,930 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:00,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:00,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1961863662] [2024-11-19 10:39:00,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1961863662] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:00,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:00,931 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:39:00,931 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265661483] [2024-11-19 10:39:00,931 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:00,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:39:00,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:00,932 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:39:00,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:39:00,932 INFO L87 Difference]: Start difference. First operand 195 states and 241 transitions. Second operand has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:01,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:01,575 INFO L93 Difference]: Finished difference Result 222 states and 245 transitions. [2024-11-19 10:39:01,576 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:39:01,576 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 27 [2024-11-19 10:39:01,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:01,577 INFO L225 Difference]: With dead ends: 222 [2024-11-19 10:39:01,577 INFO L226 Difference]: Without dead ends: 221 [2024-11-19 10:39:01,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:39:01,578 INFO L432 NwaCegarLoop]: 145 mSDtfsCounter, 62 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 125 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 490 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 125 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:01,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 490 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 125 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 10:39:01,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-19 10:39:01,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 196. [2024-11-19 10:39:01,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 196 states, 131 states have (on average 1.6946564885496183) internal successors, (222), 183 states have internal predecessors, (222), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:39:01,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 196 states to 196 states and 242 transitions. [2024-11-19 10:39:01,591 INFO L78 Accepts]: Start accepts. Automaton has 196 states and 242 transitions. Word has length 27 [2024-11-19 10:39:01,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:01,592 INFO L471 AbstractCegarLoop]: Abstraction has 196 states and 242 transitions. [2024-11-19 10:39:01,592 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 5.0) internal successors, (20), 5 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:01,592 INFO L276 IsEmpty]: Start isEmpty. Operand 196 states and 242 transitions. [2024-11-19 10:39:01,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-19 10:39:01,593 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:01,593 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:01,594 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 10:39:01,594 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr37ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:01,594 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:01,595 INFO L85 PathProgramCache]: Analyzing trace with hash 2104182261, now seen corresponding path program 1 times [2024-11-19 10:39:01,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:01,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1659442297] [2024-11-19 10:39:01,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:01,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:01,608 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1625805470] [2024-11-19 10:39:01,608 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:01,608 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:01,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:01,610 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) [2024-11-19 10:39:01,611 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-19 10:39:01,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:01,653 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 10:39:01,654 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:01,748 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:01,748 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:01,748 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:01,748 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1659442297] [2024-11-19 10:39:01,749 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:01,749 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625805470] [2024-11-19 10:39:01,749 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625805470] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:01,749 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:01,749 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:39:01,749 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [164436476] [2024-11-19 10:39:01,749 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:01,750 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:39:01,750 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:01,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:39:01,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:01,751 INFO L87 Difference]: Start difference. First operand 196 states and 242 transitions. Second operand has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:02,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:02,140 INFO L93 Difference]: Finished difference Result 220 states and 244 transitions. [2024-11-19 10:39:02,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:39:02,141 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-19 10:39:02,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:02,142 INFO L225 Difference]: With dead ends: 220 [2024-11-19 10:39:02,142 INFO L226 Difference]: Without dead ends: 219 [2024-11-19 10:39:02,142 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:39:02,143 INFO L432 NwaCegarLoop]: 138 mSDtfsCounter, 62 mSDsluCounter, 206 mSDsCounter, 0 mSdLazyCounter, 114 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 344 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 114 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:02,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 344 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 114 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 10:39:02,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 219 states. [2024-11-19 10:39:02,154 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 219 to 197. [2024-11-19 10:39:02,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 132 states have (on average 1.6893939393939394) internal successors, (223), 184 states have internal predecessors, (223), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:39:02,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 243 transitions. [2024-11-19 10:39:02,156 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 243 transitions. Word has length 28 [2024-11-19 10:39:02,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:02,157 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 243 transitions. [2024-11-19 10:39:02,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.0) internal successors, (21), 4 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:02,157 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 243 transitions. [2024-11-19 10:39:02,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-11-19 10:39:02,158 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:02,160 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:02,176 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-19 10:39:02,363 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:02,364 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:02,364 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:02,364 INFO L85 PathProgramCache]: Analyzing trace with hash 2084141954, now seen corresponding path program 1 times [2024-11-19 10:39:02,364 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:02,364 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [352641211] [2024-11-19 10:39:02,365 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:02,365 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:02,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:02,374 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1275432081] [2024-11-19 10:39:02,374 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:02,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:02,375 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:02,376 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) [2024-11-19 10:39:02,378 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-19 10:39:02,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:02,433 INFO L255 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 10:39:02,435 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:02,459 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:02,459 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:02,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:02,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [352641211] [2024-11-19 10:39:02,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:02,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1275432081] [2024-11-19 10:39:02,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1275432081] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:02,460 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:02,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:39:02,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641665966] [2024-11-19 10:39:02,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:02,461 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:39:02,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:02,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:39:02,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:39:02,462 INFO L87 Difference]: Start difference. First operand 197 states and 243 transitions. Second operand has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:02,605 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:02,606 INFO L93 Difference]: Finished difference Result 223 states and 243 transitions. [2024-11-19 10:39:02,606 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:39:02,606 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 28 [2024-11-19 10:39:02,606 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:02,607 INFO L225 Difference]: With dead ends: 223 [2024-11-19 10:39:02,608 INFO L226 Difference]: Without dead ends: 221 [2024-11-19 10:39:02,608 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:39:02,608 INFO L432 NwaCegarLoop]: 150 mSDtfsCounter, 61 mSDsluCounter, 123 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 65 SdHoareTripleChecker+Valid, 273 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:02,609 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [65 Valid, 273 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:39:02,609 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2024-11-19 10:39:02,614 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 197. [2024-11-19 10:39:02,615 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 197 states, 132 states have (on average 1.6742424242424243) internal successors, (221), 184 states have internal predecessors, (221), 10 states have call successors, (10), 2 states have call predecessors, (10), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-11-19 10:39:02,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 197 states to 197 states and 241 transitions. [2024-11-19 10:39:02,616 INFO L78 Accepts]: Start accepts. Automaton has 197 states and 241 transitions. Word has length 28 [2024-11-19 10:39:02,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:02,616 INFO L471 AbstractCegarLoop]: Abstraction has 197 states and 241 transitions. [2024-11-19 10:39:02,616 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 10.5) internal successors, (21), 3 states have internal predecessors, (21), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:02,616 INFO L276 IsEmpty]: Start isEmpty. Operand 197 states and 241 transitions. [2024-11-19 10:39:02,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-19 10:39:02,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:02,617 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:02,634 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-19 10:39:02,818 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:02,818 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr38ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:02,818 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:02,818 INFO L85 PathProgramCache]: Analyzing trace with hash 805140820, now seen corresponding path program 1 times [2024-11-19 10:39:02,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:02,818 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [986514442] [2024-11-19 10:39:02,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:02,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:02,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:02,834 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [646911809] [2024-11-19 10:39:02,834 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:02,834 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:02,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:02,836 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) [2024-11-19 10:39:02,838 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-19 10:39:02,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:02,882 INFO L255 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-19 10:39:02,883 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:02,905 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:02,905 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:02,905 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:02,905 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [986514442] [2024-11-19 10:39:02,906 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:02,906 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [646911809] [2024-11-19 10:39:02,906 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [646911809] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:02,906 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:02,906 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-19 10:39:02,906 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [437545930] [2024-11-19 10:39:02,907 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:02,907 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-19 10:39:02,907 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:02,907 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-19 10:39:02,908 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:39:02,908 INFO L87 Difference]: Start difference. First operand 197 states and 241 transitions. Second operand has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:02,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:02,967 INFO L93 Difference]: Finished difference Result 320 states and 411 transitions. [2024-11-19 10:39:02,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-19 10:39:02,968 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 29 [2024-11-19 10:39:02,968 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:02,969 INFO L225 Difference]: With dead ends: 320 [2024-11-19 10:39:02,969 INFO L226 Difference]: Without dead ends: 314 [2024-11-19 10:39:02,970 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-19 10:39:02,970 INFO L432 NwaCegarLoop]: 123 mSDtfsCounter, 63 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:02,970 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 238 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-19 10:39:02,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-19 10:39:02,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 280. [2024-11-19 10:39:02,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 207 states have (on average 1.6763285024154588) internal successors, (347), 259 states have internal predecessors, (347), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 10:39:02,981 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 383 transitions. [2024-11-19 10:39:02,981 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 383 transitions. Word has length 29 [2024-11-19 10:39:02,982 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:02,982 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 383 transitions. [2024-11-19 10:39:02,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 11.0) internal successors, (22), 3 states have internal predecessors, (22), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:02,982 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 383 transitions. [2024-11-19 10:39:02,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-11-19 10:39:02,983 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:02,983 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:02,999 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-19 10:39:03,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-19 10:39:03,184 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:03,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:03,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1405660772, now seen corresponding path program 1 times [2024-11-19 10:39:03,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:03,185 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1024197557] [2024-11-19 10:39:03,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:03,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:03,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:03,194 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [345722891] [2024-11-19 10:39:03,194 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:03,194 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:03,194 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:03,196 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) [2024-11-19 10:39:03,197 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-19 10:39:03,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:03,239 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:39:03,240 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:03,327 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:03,328 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:03,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:03,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1024197557] [2024-11-19 10:39:03,328 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:03,328 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [345722891] [2024-11-19 10:39:03,328 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [345722891] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:03,328 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:03,328 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:39:03,328 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841210052] [2024-11-19 10:39:03,329 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:03,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:39:03,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:03,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:39:03,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:03,329 INFO L87 Difference]: Start difference. First operand 280 states and 383 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:03,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:03,541 INFO L93 Difference]: Finished difference Result 301 states and 383 transitions. [2024-11-19 10:39:03,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:39:03,541 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 30 [2024-11-19 10:39:03,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:03,543 INFO L225 Difference]: With dead ends: 301 [2024-11-19 10:39:03,543 INFO L226 Difference]: Without dead ends: 300 [2024-11-19 10:39:03,543 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:03,543 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 195 mSDsluCounter, 101 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 203 SdHoareTripleChecker+Valid, 223 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:03,544 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [203 Valid, 223 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:39:03,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-11-19 10:39:03,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 280. [2024-11-19 10:39:03,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 280 states, 207 states have (on average 1.6666666666666667) internal successors, (345), 259 states have internal predecessors, (345), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 10:39:03,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 381 transitions. [2024-11-19 10:39:03,555 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 381 transitions. Word has length 30 [2024-11-19 10:39:03,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:03,557 INFO L471 AbstractCegarLoop]: Abstraction has 280 states and 381 transitions. [2024-11-19 10:39:03,557 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:03,557 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 381 transitions. [2024-11-19 10:39:03,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-19 10:39:03,560 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:03,560 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:03,578 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-19 10:39:03,761 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:03,761 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr40ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:03,762 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:03,762 INFO L85 PathProgramCache]: Analyzing trace with hash 646220214, now seen corresponding path program 1 times [2024-11-19 10:39:03,762 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:03,762 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2141481175] [2024-11-19 10:39:03,762 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:03,762 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:03,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:03,815 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:03,815 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:03,815 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2141481175] [2024-11-19 10:39:03,815 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2141481175] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:03,815 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:03,816 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:39:03,816 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128324616] [2024-11-19 10:39:03,816 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:03,816 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:39:03,816 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:03,817 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:39:03,817 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:39:03,817 INFO L87 Difference]: Start difference. First operand 280 states and 381 transitions. Second operand has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:04,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:04,556 INFO L93 Difference]: Finished difference Result 312 states and 391 transitions. [2024-11-19 10:39:04,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:39:04,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2024-11-19 10:39:04,557 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:04,558 INFO L225 Difference]: With dead ends: 312 [2024-11-19 10:39:04,558 INFO L226 Difference]: Without dead ends: 311 [2024-11-19 10:39:04,559 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:39:04,559 INFO L432 NwaCegarLoop]: 151 mSDtfsCounter, 63 mSDsluCounter, 365 mSDsCounter, 0 mSdLazyCounter, 111 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 67 SdHoareTripleChecker+Valid, 516 SdHoareTripleChecker+Invalid, 111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 111 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:04,559 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [67 Valid, 516 Invalid, 111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 111 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 10:39:04,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 311 states. [2024-11-19 10:39:04,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 311 to 285. [2024-11-19 10:39:04,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 212 states have (on average 1.6603773584905661) internal successors, (352), 264 states have internal predecessors, (352), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 10:39:04,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 388 transitions. [2024-11-19 10:39:04,570 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 388 transitions. Word has length 31 [2024-11-19 10:39:04,570 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:04,570 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 388 transitions. [2024-11-19 10:39:04,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.0) internal successors, (24), 5 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:04,571 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 388 transitions. [2024-11-19 10:39:04,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-19 10:39:04,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:04,572 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:04,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-19 10:39:04,572 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:04,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:04,572 INFO L85 PathProgramCache]: Analyzing trace with hash 625811067, now seen corresponding path program 1 times [2024-11-19 10:39:04,572 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:04,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2104703370] [2024-11-19 10:39:04,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:04,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:04,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:04,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [306006362] [2024-11-19 10:39:04,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:04,589 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:04,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:04,591 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) [2024-11-19 10:39:04,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-19 10:39:04,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:04,632 INFO L255 TraceCheckSpWp]: Trace formula consists of 92 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:39:04,633 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:04,707 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:04,707 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:04,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:04,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2104703370] [2024-11-19 10:39:04,707 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:04,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306006362] [2024-11-19 10:39:04,707 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306006362] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:04,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:04,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:39:04,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767614240] [2024-11-19 10:39:04,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:04,708 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:39:04,708 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:04,708 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:39:04,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:04,709 INFO L87 Difference]: Start difference. First operand 285 states and 388 transitions. Second operand has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:04,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:04,862 INFO L93 Difference]: Finished difference Result 306 states and 388 transitions. [2024-11-19 10:39:04,862 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:39:04,863 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 31 [2024-11-19 10:39:04,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:04,865 INFO L225 Difference]: With dead ends: 306 [2024-11-19 10:39:04,865 INFO L226 Difference]: Without dead ends: 305 [2024-11-19 10:39:04,865 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:04,866 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 157 mSDsluCounter, 114 mSDsCounter, 0 mSdLazyCounter, 98 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 165 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 98 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 98 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:04,866 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [165 Valid, 236 Invalid, 98 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 98 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:39:04,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305 states. [2024-11-19 10:39:04,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305 to 285. [2024-11-19 10:39:04,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 285 states, 212 states have (on average 1.650943396226415) internal successors, (350), 264 states have internal predecessors, (350), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 10:39:04,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 285 states to 285 states and 386 transitions. [2024-11-19 10:39:04,877 INFO L78 Accepts]: Start accepts. Automaton has 285 states and 386 transitions. Word has length 31 [2024-11-19 10:39:04,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:04,878 INFO L471 AbstractCegarLoop]: Abstraction has 285 states and 386 transitions. [2024-11-19 10:39:04,878 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.0) internal successors, (24), 4 states have internal predecessors, (24), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:04,878 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states and 386 transitions. [2024-11-19 10:39:04,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 10:39:04,879 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:04,879 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:04,897 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-19 10:39:05,080 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:05,080 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:05,081 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:05,081 INFO L85 PathProgramCache]: Analyzing trace with hash -1442009671, now seen corresponding path program 1 times [2024-11-19 10:39:05,081 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:05,081 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [879587453] [2024-11-19 10:39:05,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:05,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:05,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:05,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [580950739] [2024-11-19 10:39:05,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:05,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:05,090 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:05,092 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) [2024-11-19 10:39:05,093 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-19 10:39:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:05,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 99 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 10:39:05,133 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:05,199 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:05,199 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:05,199 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:05,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [879587453] [2024-11-19 10:39:05,199 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:05,199 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [580950739] [2024-11-19 10:39:05,199 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [580950739] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:05,199 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:05,199 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:39:05,200 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [6886460] [2024-11-19 10:39:05,200 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:05,200 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:39:05,200 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:05,200 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:39:05,200 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:39:05,201 INFO L87 Difference]: Start difference. First operand 285 states and 386 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:05,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:05,506 INFO L93 Difference]: Finished difference Result 329 states and 397 transitions. [2024-11-19 10:39:05,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:39:05,507 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-19 10:39:05,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:05,508 INFO L225 Difference]: With dead ends: 329 [2024-11-19 10:39:05,508 INFO L226 Difference]: Without dead ends: 328 [2024-11-19 10:39:05,508 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:39:05,509 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 173 mSDsluCounter, 284 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 419 SdHoareTripleChecker+Invalid, 125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:05,509 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 419 Invalid, 125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:39:05,510 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 328 states. [2024-11-19 10:39:05,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 328 to 287. [2024-11-19 10:39:05,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.644859813084112) internal successors, (352), 266 states have internal predecessors, (352), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 10:39:05,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 388 transitions. [2024-11-19 10:39:05,521 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 388 transitions. Word has length 32 [2024-11-19 10:39:05,521 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:05,522 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 388 transitions. [2024-11-19 10:39:05,522 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 5 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:05,522 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 388 transitions. [2024-11-19 10:39:05,523 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-11-19 10:39:05,523 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:05,523 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:05,539 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-19 10:39:05,723 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-19 10:39:05,724 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:05,724 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:05,724 INFO L85 PathProgramCache]: Analyzing trace with hash -2074693306, now seen corresponding path program 1 times [2024-11-19 10:39:05,724 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:05,724 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [362507348] [2024-11-19 10:39:05,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:05,725 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:05,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:05,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1124673402] [2024-11-19 10:39:05,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:05,733 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:05,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:05,735 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) [2024-11-19 10:39:05,737 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-19 10:39:05,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:05,776 INFO L255 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:39:05,777 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:05,817 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:05,817 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:05,817 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:05,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [362507348] [2024-11-19 10:39:05,818 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:05,818 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1124673402] [2024-11-19 10:39:05,818 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1124673402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:05,818 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:05,818 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:39:05,818 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1895370771] [2024-11-19 10:39:05,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:05,819 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:39:05,819 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:05,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:39:05,820 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:05,820 INFO L87 Difference]: Start difference. First operand 287 states and 388 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:06,022 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:06,022 INFO L93 Difference]: Finished difference Result 313 states and 391 transitions. [2024-11-19 10:39:06,023 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:39:06,023 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 32 [2024-11-19 10:39:06,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:06,024 INFO L225 Difference]: With dead ends: 313 [2024-11-19 10:39:06,025 INFO L226 Difference]: Without dead ends: 312 [2024-11-19 10:39:06,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:06,027 INFO L432 NwaCegarLoop]: 156 mSDtfsCounter, 115 mSDsluCounter, 141 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 297 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:06,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 297 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:39:06,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 312 states. [2024-11-19 10:39:06,037 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 312 to 287. [2024-11-19 10:39:06,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.6355140186915889) internal successors, (350), 266 states have internal predecessors, (350), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 10:39:06,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 386 transitions. [2024-11-19 10:39:06,038 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 386 transitions. Word has length 32 [2024-11-19 10:39:06,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:06,039 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 386 transitions. [2024-11-19 10:39:06,039 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:06,039 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 386 transitions. [2024-11-19 10:39:06,039 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-19 10:39:06,039 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:06,039 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:06,055 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-19 10:39:06,240 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-19 10:39:06,240 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:06,240 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:06,240 INFO L85 PathProgramCache]: Analyzing trace with hash 109017053, now seen corresponding path program 1 times [2024-11-19 10:39:06,240 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:06,241 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1383659600] [2024-11-19 10:39:06,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:06,241 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:06,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:06,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1242902042] [2024-11-19 10:39:06,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:06,250 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:06,250 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:06,252 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) [2024-11-19 10:39:06,253 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-19 10:39:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:06,294 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:39:06,297 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:06,471 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:06,471 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:06,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:06,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1383659600] [2024-11-19 10:39:06,471 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:06,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1242902042] [2024-11-19 10:39:06,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1242902042] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:06,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:06,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:39:06,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446358079] [2024-11-19 10:39:06,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:06,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:39:06,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:06,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:39:06,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:06,473 INFO L87 Difference]: Start difference. First operand 287 states and 386 transitions. Second operand has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:06,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:06,818 INFO L93 Difference]: Finished difference Result 314 states and 390 transitions. [2024-11-19 10:39:06,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:39:06,819 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 33 [2024-11-19 10:39:06,820 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:06,821 INFO L225 Difference]: With dead ends: 314 [2024-11-19 10:39:06,821 INFO L226 Difference]: Without dead ends: 313 [2024-11-19 10:39:06,821 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:06,822 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 67 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 379 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:06,822 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 379 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:39:06,823 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 313 states. [2024-11-19 10:39:06,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 313 to 287. [2024-11-19 10:39:06,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 287 states, 214 states have (on average 1.6261682242990654) internal successors, (348), 266 states have internal predecessors, (348), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 10:39:06,833 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 287 states to 287 states and 384 transitions. [2024-11-19 10:39:06,833 INFO L78 Accepts]: Start accepts. Automaton has 287 states and 384 transitions. Word has length 33 [2024-11-19 10:39:06,834 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:06,834 INFO L471 AbstractCegarLoop]: Abstraction has 287 states and 384 transitions. [2024-11-19 10:39:06,834 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 8.666666666666666) internal successors, (26), 4 states have internal predecessors, (26), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:06,834 INFO L276 IsEmpty]: Start isEmpty. Operand 287 states and 384 transitions. [2024-11-19 10:39:06,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-11-19 10:39:06,835 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:06,835 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:06,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-19 10:39:07,035 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:07,035 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:07,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:07,036 INFO L85 PathProgramCache]: Analyzing trace with hash -647174383, now seen corresponding path program 1 times [2024-11-19 10:39:07,036 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:07,036 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566687698] [2024-11-19 10:39:07,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:07,036 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:07,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:07,118 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:07,118 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:07,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566687698] [2024-11-19 10:39:07,118 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566687698] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:39:07,118 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495821826] [2024-11-19 10:39:07,118 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:07,118 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:07,118 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:07,119 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) [2024-11-19 10:39:07,120 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-19 10:39:07,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:07,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 105 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 10:39:07,159 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:07,233 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:07,234 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:07,234 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495821826] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:07,234 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:39:07,234 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [7] total 12 [2024-11-19 10:39:07,234 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1922857056] [2024-11-19 10:39:07,234 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:07,234 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 10:39:07,235 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:07,235 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 10:39:07,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2024-11-19 10:39:07,235 INFO L87 Difference]: Start difference. First operand 287 states and 384 transitions. Second operand has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:07,344 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:07,344 INFO L93 Difference]: Finished difference Result 331 states and 425 transitions. [2024-11-19 10:39:07,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 10:39:07,344 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 35 [2024-11-19 10:39:07,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:07,346 INFO L225 Difference]: With dead ends: 331 [2024-11-19 10:39:07,346 INFO L226 Difference]: Without dead ends: 329 [2024-11-19 10:39:07,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=65, Invalid=241, Unknown=0, NotChecked=0, Total=306 [2024-11-19 10:39:07,347 INFO L432 NwaCegarLoop]: 160 mSDtfsCounter, 95 mSDsluCounter, 610 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 95 SdHoareTripleChecker+Valid, 770 SdHoareTripleChecker+Invalid, 80 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:07,347 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [95 Valid, 770 Invalid, 80 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:39:07,348 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 329 states. [2024-11-19 10:39:07,356 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 329 to 292. [2024-11-19 10:39:07,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 219 states have (on average 1.6164383561643836) internal successors, (354), 271 states have internal predecessors, (354), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 10:39:07,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 390 transitions. [2024-11-19 10:39:07,358 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 390 transitions. Word has length 35 [2024-11-19 10:39:07,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:07,358 INFO L471 AbstractCegarLoop]: Abstraction has 292 states and 390 transitions. [2024-11-19 10:39:07,359 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.666666666666667) internal successors, (28), 7 states have internal predecessors, (28), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:07,359 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 390 transitions. [2024-11-19 10:39:07,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-11-19 10:39:07,359 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:07,359 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:07,376 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-19 10:39:07,563 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:07,564 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:07,564 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:07,564 INFO L85 PathProgramCache]: Analyzing trace with hash 835677494, now seen corresponding path program 1 times [2024-11-19 10:39:07,564 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:07,564 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [868950144] [2024-11-19 10:39:07,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:07,564 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:07,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:07,630 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:07,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:07,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [868950144] [2024-11-19 10:39:07,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [868950144] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:39:07,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [68553499] [2024-11-19 10:39:07,631 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:07,632 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:07,632 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:07,633 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) [2024-11-19 10:39:07,635 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-19 10:39:07,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:07,672 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-19 10:39:07,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:07,723 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:07,724 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:39:07,813 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:07,814 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [68553499] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:39:07,814 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:39:07,814 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 8] total 12 [2024-11-19 10:39:07,814 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1128992589] [2024-11-19 10:39:07,814 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:39:07,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 10:39:07,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:07,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 10:39:07,815 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=97, Unknown=0, NotChecked=0, Total=132 [2024-11-19 10:39:07,815 INFO L87 Difference]: Start difference. First operand 292 states and 390 transitions. Second operand has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 10:39:07,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:07,955 INFO L93 Difference]: Finished difference Result 528 states and 673 transitions. [2024-11-19 10:39:07,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-11-19 10:39:07,956 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 37 [2024-11-19 10:39:07,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:07,958 INFO L225 Difference]: With dead ends: 528 [2024-11-19 10:39:07,958 INFO L226 Difference]: Without dead ends: 351 [2024-11-19 10:39:07,959 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 68 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=111, Invalid=309, Unknown=0, NotChecked=0, Total=420 [2024-11-19 10:39:07,959 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 59 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:07,960 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 944 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-19 10:39:07,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 351 states. [2024-11-19 10:39:07,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 351 to 315. [2024-11-19 10:39:07,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 242 states have (on average 1.5826446280991735) internal successors, (383), 294 states have internal predecessors, (383), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-11-19 10:39:07,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 419 transitions. [2024-11-19 10:39:07,973 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 419 transitions. Word has length 37 [2024-11-19 10:39:07,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:07,973 INFO L471 AbstractCegarLoop]: Abstraction has 315 states and 419 transitions. [2024-11-19 10:39:07,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.75) internal successors, (57), 12 states have internal predecessors, (57), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-19 10:39:07,973 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 419 transitions. [2024-11-19 10:39:07,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-11-19 10:39:07,973 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:07,974 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:07,990 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-19 10:39:08,174 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable20 [2024-11-19 10:39:08,175 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr42ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:08,175 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:08,175 INFO L85 PathProgramCache]: Analyzing trace with hash 136196672, now seen corresponding path program 1 times [2024-11-19 10:39:08,175 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:08,175 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1783192332] [2024-11-19 10:39:08,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:08,176 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:08,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:08,269 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:08,269 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:08,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1783192332] [2024-11-19 10:39:08,269 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1783192332] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:39:08,269 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428533299] [2024-11-19 10:39:08,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:08,269 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:08,269 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:08,272 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:08,276 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-19 10:39:08,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:08,319 INFO L255 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 10:39:08,322 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:08,368 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:08,369 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:39:08,460 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:08,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428533299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:39:08,461 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:39:08,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 9 [2024-11-19 10:39:08,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1325353616] [2024-11-19 10:39:08,461 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:39:08,462 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 10:39:08,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:08,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 10:39:08,463 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:39:08,463 INFO L87 Difference]: Start difference. First operand 315 states and 419 transitions. Second operand has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:39:09,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:09,095 INFO L93 Difference]: Finished difference Result 849 states and 1065 transitions. [2024-11-19 10:39:09,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-19 10:39:09,096 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 38 [2024-11-19 10:39:09,096 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:09,099 INFO L225 Difference]: With dead ends: 849 [2024-11-19 10:39:09,099 INFO L226 Difference]: Without dead ends: 821 [2024-11-19 10:39:09,099 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=291, Unknown=0, NotChecked=0, Total=380 [2024-11-19 10:39:09,100 INFO L432 NwaCegarLoop]: 142 mSDtfsCounter, 880 mSDsluCounter, 635 mSDsCounter, 0 mSdLazyCounter, 597 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 884 SdHoareTripleChecker+Valid, 777 SdHoareTripleChecker+Invalid, 630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 597 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:09,100 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [884 Valid, 777 Invalid, 630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 597 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 10:39:09,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 821 states. [2024-11-19 10:39:09,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 821 to 459. [2024-11-19 10:39:09,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.6084656084656084) internal successors, (608), 430 states have internal predecessors, (608), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 10:39:09,123 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 660 transitions. [2024-11-19 10:39:09,124 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 660 transitions. Word has length 38 [2024-11-19 10:39:09,124 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:09,124 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 660 transitions. [2024-11-19 10:39:09,124 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.0) internal successors, (36), 8 states have internal predecessors, (36), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:39:09,124 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 660 transitions. [2024-11-19 10:39:09,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2024-11-19 10:39:09,125 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:09,125 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:09,141 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-19 10:39:09,329 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-11-19 10:39:09,330 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:09,330 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:09,330 INFO L85 PathProgramCache]: Analyzing trace with hash -1283008566, now seen corresponding path program 1 times [2024-11-19 10:39:09,330 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:09,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [987290610] [2024-11-19 10:39:09,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:09,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:09,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:09,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1738711186] [2024-11-19 10:39:09,340 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:09,340 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:09,340 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:09,342 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:09,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-19 10:39:09,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:09,385 INFO L255 TraceCheckSpWp]: Trace formula consists of 106 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:39:09,386 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:09,470 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:09,470 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:09,470 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:09,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [987290610] [2024-11-19 10:39:09,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:09,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738711186] [2024-11-19 10:39:09,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738711186] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:09,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:09,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:39:09,471 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [37148647] [2024-11-19 10:39:09,471 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:09,471 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:39:09,471 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:09,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:39:09,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:09,472 INFO L87 Difference]: Start difference. First operand 459 states and 660 transitions. Second operand has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 10:39:09,688 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:09,689 INFO L93 Difference]: Finished difference Result 479 states and 662 transitions. [2024-11-19 10:39:09,689 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:39:09,689 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 41 [2024-11-19 10:39:09,690 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:09,691 INFO L225 Difference]: With dead ends: 479 [2024-11-19 10:39:09,692 INFO L226 Difference]: Without dead ends: 478 [2024-11-19 10:39:09,692 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:09,693 INFO L432 NwaCegarLoop]: 122 mSDtfsCounter, 197 mSDsluCounter, 97 mSDsCounter, 0 mSdLazyCounter, 90 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 204 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 90 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:09,693 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [204 Valid, 219 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:39:09,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 478 states. [2024-11-19 10:39:09,712 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 478 to 459. [2024-11-19 10:39:09,713 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.6031746031746033) internal successors, (606), 430 states have internal predecessors, (606), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 10:39:09,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 658 transitions. [2024-11-19 10:39:09,715 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 658 transitions. Word has length 41 [2024-11-19 10:39:09,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:09,715 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 658 transitions. [2024-11-19 10:39:09,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 10.666666666666666) internal successors, (32), 4 states have internal predecessors, (32), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 10:39:09,716 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 658 transitions. [2024-11-19 10:39:09,716 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-19 10:39:09,716 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:09,716 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:09,733 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-19 10:39:09,917 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:09,918 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:09,918 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:09,918 INFO L85 PathProgramCache]: Analyzing trace with hash -1118559774, now seen corresponding path program 1 times [2024-11-19 10:39:09,918 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:09,918 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427745398] [2024-11-19 10:39:09,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:09,919 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:09,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [115961638] [2024-11-19 10:39:09,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:09,930 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:09,930 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:09,931 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:09,932 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-19 10:39:09,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:09,982 INFO L255 TraceCheckSpWp]: Trace formula consists of 107 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-19 10:39:09,984 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:10,105 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:10,106 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:10,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:10,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427745398] [2024-11-19 10:39:10,106 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:10,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [115961638] [2024-11-19 10:39:10,106 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [115961638] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:10,106 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:10,107 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 10:39:10,107 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1888417509] [2024-11-19 10:39:10,107 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:10,107 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 10:39:10,107 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:10,108 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 10:39:10,108 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 10:39:10,108 INFO L87 Difference]: Start difference. First operand 459 states and 658 transitions. Second operand has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 10:39:10,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:10,658 INFO L93 Difference]: Finished difference Result 488 states and 664 transitions. [2024-11-19 10:39:10,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:39:10,658 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 42 [2024-11-19 10:39:10,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:10,660 INFO L225 Difference]: With dead ends: 488 [2024-11-19 10:39:10,661 INFO L226 Difference]: Without dead ends: 487 [2024-11-19 10:39:10,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=70, Unknown=0, NotChecked=0, Total=110 [2024-11-19 10:39:10,662 INFO L432 NwaCegarLoop]: 104 mSDtfsCounter, 391 mSDsluCounter, 253 mSDsCounter, 0 mSdLazyCounter, 375 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 395 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 375 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:10,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [395 Valid, 357 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 375 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-19 10:39:10,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-19 10:39:10,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 459. [2024-11-19 10:39:10,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.597883597883598) internal successors, (604), 430 states have internal predecessors, (604), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 10:39:10,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 656 transitions. [2024-11-19 10:39:10,686 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 656 transitions. Word has length 42 [2024-11-19 10:39:10,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:10,687 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 656 transitions. [2024-11-19 10:39:10,687 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.6) internal successors, (33), 6 states have internal predecessors, (33), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 10:39:10,687 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 656 transitions. [2024-11-19 10:39:10,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-19 10:39:10,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:10,688 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:10,704 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-11-19 10:39:10,888 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:10,889 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:10,889 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:10,889 INFO L85 PathProgramCache]: Analyzing trace with hash -315614516, now seen corresponding path program 1 times [2024-11-19 10:39:10,889 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:10,889 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1094158210] [2024-11-19 10:39:10,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:10,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:10,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:10,900 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1288010830] [2024-11-19 10:39:10,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:10,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:10,900 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:10,902 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:10,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-19 10:39:10,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:10,948 INFO L255 TraceCheckSpWp]: Trace formula consists of 108 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:39:10,949 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:10,986 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:10,986 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:10,987 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:10,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1094158210] [2024-11-19 10:39:10,987 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:10,987 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1288010830] [2024-11-19 10:39:10,987 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1288010830] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:10,987 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:10,987 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:39:10,987 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095412703] [2024-11-19 10:39:10,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:10,987 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:39:10,987 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:10,988 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:39:10,988 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:10,988 INFO L87 Difference]: Start difference. First operand 459 states and 656 transitions. Second operand has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 10:39:11,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:11,648 INFO L93 Difference]: Finished difference Result 488 states and 667 transitions. [2024-11-19 10:39:11,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:39:11,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 43 [2024-11-19 10:39:11,649 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:11,651 INFO L225 Difference]: With dead ends: 488 [2024-11-19 10:39:11,651 INFO L226 Difference]: Without dead ends: 487 [2024-11-19 10:39:11,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:11,651 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 67 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 121 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 357 SdHoareTripleChecker+Invalid, 121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 121 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:11,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 357 Invalid, 121 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 121 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 10:39:11,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 487 states. [2024-11-19 10:39:11,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 487 to 459. [2024-11-19 10:39:11,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.5925925925925926) internal successors, (602), 430 states have internal predecessors, (602), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 10:39:11,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 654 transitions. [2024-11-19 10:39:11,672 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 654 transitions. Word has length 43 [2024-11-19 10:39:11,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:11,673 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 654 transitions. [2024-11-19 10:39:11,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.333333333333334) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 10:39:11,673 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 654 transitions. [2024-11-19 10:39:11,673 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-19 10:39:11,674 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:11,674 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:11,691 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-19 10:39:11,874 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-11-19 10:39:11,875 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:11,875 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:11,875 INFO L85 PathProgramCache]: Analyzing trace with hash -1194115292, now seen corresponding path program 1 times [2024-11-19 10:39:11,875 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:11,875 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [881656007] [2024-11-19 10:39:11,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:11,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:11,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:11,891 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [795398090] [2024-11-19 10:39:11,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:11,891 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:11,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:11,895 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:11,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-19 10:39:11,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:11,943 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-19 10:39:11,944 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:12,018 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:12,018 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:12,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:12,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [881656007] [2024-11-19 10:39:12,019 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:12,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [795398090] [2024-11-19 10:39:12,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [795398090] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:12,019 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:12,019 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-19 10:39:12,019 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [412354721] [2024-11-19 10:39:12,019 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:12,020 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-19 10:39:12,020 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:12,020 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-19 10:39:12,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:12,021 INFO L87 Difference]: Start difference. First operand 459 states and 654 transitions. Second operand has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 10:39:12,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:12,620 INFO L93 Difference]: Finished difference Result 489 states and 666 transitions. [2024-11-19 10:39:12,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-19 10:39:12,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 44 [2024-11-19 10:39:12,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:12,622 INFO L225 Difference]: With dead ends: 489 [2024-11-19 10:39:12,622 INFO L226 Difference]: Without dead ends: 488 [2024-11-19 10:39:12,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-19 10:39:12,623 INFO L432 NwaCegarLoop]: 164 mSDtfsCounter, 67 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 120 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 120 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 120 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:12,623 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 359 Invalid, 120 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 120 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-19 10:39:12,624 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 488 states. [2024-11-19 10:39:12,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 488 to 459. [2024-11-19 10:39:12,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459 states, 378 states have (on average 1.5873015873015872) internal successors, (600), 430 states have internal predecessors, (600), 26 states have call successors, (26), 2 states have call predecessors, (26), 2 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-11-19 10:39:12,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459 states to 459 states and 652 transitions. [2024-11-19 10:39:12,644 INFO L78 Accepts]: Start accepts. Automaton has 459 states and 652 transitions. Word has length 44 [2024-11-19 10:39:12,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:12,645 INFO L471 AbstractCegarLoop]: Abstraction has 459 states and 652 transitions. [2024-11-19 10:39:12,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 11.666666666666666) internal successors, (35), 4 states have internal predecessors, (35), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-19 10:39:12,645 INFO L276 IsEmpty]: Start isEmpty. Operand 459 states and 652 transitions. [2024-11-19 10:39:12,645 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-11-19 10:39:12,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:12,646 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:12,662 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-11-19 10:39:12,846 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-19 10:39:12,846 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:12,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:12,847 INFO L85 PathProgramCache]: Analyzing trace with hash 1183414308, now seen corresponding path program 1 times [2024-11-19 10:39:12,847 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:12,847 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255129551] [2024-11-19 10:39:12,847 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:12,847 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:12,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:12,959 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:12,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:12,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255129551] [2024-11-19 10:39:12,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255129551] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:39:12,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [97631023] [2024-11-19 10:39:12,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:12,960 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:12,960 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:12,962 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:12,963 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-19 10:39:13,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:13,011 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 10:39:13,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:13,159 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:13,159 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:39:13,316 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:13,316 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [97631023] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:39:13,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-19 10:39:13,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 10, 10] total 29 [2024-11-19 10:39:13,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [198025489] [2024-11-19 10:39:13,317 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-19 10:39:13,317 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 30 states [2024-11-19 10:39:13,317 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:13,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 30 interpolants. [2024-11-19 10:39:13,318 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=170, Invalid=700, Unknown=0, NotChecked=0, Total=870 [2024-11-19 10:39:13,318 INFO L87 Difference]: Start difference. First operand 459 states and 652 transitions. Second operand has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 30 states have internal predecessors, (103), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:39:13,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:13,818 INFO L93 Difference]: Finished difference Result 1305 states and 1810 transitions. [2024-11-19 10:39:13,819 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 40 states. [2024-11-19 10:39:13,819 INFO L78 Accepts]: Start accepts. Automaton has has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 30 states have internal predecessors, (103), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 45 [2024-11-19 10:39:13,819 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:13,823 INFO L225 Difference]: With dead ends: 1305 [2024-11-19 10:39:13,823 INFO L226 Difference]: Without dead ends: 984 [2024-11-19 10:39:13,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 124 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 504 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=608, Invalid=2362, Unknown=0, NotChecked=0, Total=2970 [2024-11-19 10:39:13,825 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 851 mSDsluCounter, 2157 mSDsCounter, 0 mSdLazyCounter, 343 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 851 SdHoareTripleChecker+Valid, 2333 SdHoareTripleChecker+Invalid, 402 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 343 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:13,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [851 Valid, 2333 Invalid, 402 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 343 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:39:13,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 984 states. [2024-11-19 10:39:13,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 984 to 779. [2024-11-19 10:39:13,862 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 779 states, 668 states have (on average 1.598802395209581) internal successors, (1068), 720 states have internal predecessors, (1068), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 10:39:13,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 779 states to 779 states and 1176 transitions. [2024-11-19 10:39:13,865 INFO L78 Accepts]: Start accepts. Automaton has 779 states and 1176 transitions. Word has length 45 [2024-11-19 10:39:13,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:13,865 INFO L471 AbstractCegarLoop]: Abstraction has 779 states and 1176 transitions. [2024-11-19 10:39:13,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 30 states, 29 states have (on average 3.5517241379310347) internal successors, (103), 30 states have internal predecessors, (103), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:39:13,865 INFO L276 IsEmpty]: Start isEmpty. Operand 779 states and 1176 transitions. [2024-11-19 10:39:13,867 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-11-19 10:39:13,867 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:13,867 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:13,885 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-19 10:39:14,068 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-19 10:39:14,068 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr36ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:14,069 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:14,069 INFO L85 PathProgramCache]: Analyzing trace with hash -1968215570, now seen corresponding path program 1 times [2024-11-19 10:39:14,069 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:14,069 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [271861845] [2024-11-19 10:39:14,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:14,069 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:14,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:14,269 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 14 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:14,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:14,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [271861845] [2024-11-19 10:39:14,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [271861845] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:39:14,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515509345] [2024-11-19 10:39:14,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:14,270 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:14,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:14,272 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:14,274 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-19 10:39:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:14,318 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 10:39:14,319 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:14,362 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:14,362 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:14,362 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515509345] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:14,362 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:39:14,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [5] total 9 [2024-11-19 10:39:14,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1732256591] [2024-11-19 10:39:14,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:14,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:39:14,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:14,364 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:39:14,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-11-19 10:39:14,365 INFO L87 Difference]: Start difference. First operand 779 states and 1176 transitions. Second operand has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:14,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:14,715 INFO L93 Difference]: Finished difference Result 1668 states and 2497 transitions. [2024-11-19 10:39:14,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 10:39:14,715 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 46 [2024-11-19 10:39:14,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:14,720 INFO L225 Difference]: With dead ends: 1668 [2024-11-19 10:39:14,720 INFO L226 Difference]: Without dead ends: 1220 [2024-11-19 10:39:14,722 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2024-11-19 10:39:14,723 INFO L432 NwaCegarLoop]: 234 mSDtfsCounter, 216 mSDsluCounter, 551 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 220 SdHoareTripleChecker+Valid, 785 SdHoareTripleChecker+Invalid, 165 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:14,724 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [220 Valid, 785 Invalid, 165 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:39:14,725 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1220 states. [2024-11-19 10:39:14,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1220 to 876. [2024-11-19 10:39:14,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 876 states, 765 states have (on average 1.5869281045751633) internal successors, (1214), 817 states have internal predecessors, (1214), 54 states have call successors, (54), 4 states have call predecessors, (54), 4 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-19 10:39:14,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 876 states to 876 states and 1322 transitions. [2024-11-19 10:39:14,772 INFO L78 Accepts]: Start accepts. Automaton has 876 states and 1322 transitions. Word has length 46 [2024-11-19 10:39:14,772 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:14,773 INFO L471 AbstractCegarLoop]: Abstraction has 876 states and 1322 transitions. [2024-11-19 10:39:14,773 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 7.8) internal successors, (39), 5 states have internal predecessors, (39), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:14,773 INFO L276 IsEmpty]: Start isEmpty. Operand 876 states and 1322 transitions. [2024-11-19 10:39:14,773 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2024-11-19 10:39:14,773 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:14,773 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:14,791 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-11-19 10:39:14,974 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:14,974 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:14,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:14,975 INFO L85 PathProgramCache]: Analyzing trace with hash -905180666, now seen corresponding path program 1 times [2024-11-19 10:39:14,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:14,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [625446877] [2024-11-19 10:39:14,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:14,975 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:14,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:14,987 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1640417499] [2024-11-19 10:39:14,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:14,988 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:14,988 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:14,990 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:14,992 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-19 10:39:15,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:15,033 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 10:39:15,034 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:15,211 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:15,211 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:39:15,511 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:15,511 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:15,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [625446877] [2024-11-19 10:39:15,511 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:15,511 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1640417499] [2024-11-19 10:39:15,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1640417499] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:39:15,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:39:15,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6] total 11 [2024-11-19 10:39:15,512 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1138066412] [2024-11-19 10:39:15,512 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:39:15,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-19 10:39:15,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:15,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-19 10:39:15,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2024-11-19 10:39:15,513 INFO L87 Difference]: Start difference. First operand 876 states and 1322 transitions. Second operand has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:39:16,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:16,337 INFO L93 Difference]: Finished difference Result 1648 states and 2474 transitions. [2024-11-19 10:39:16,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 10:39:16,338 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) Word has length 47 [2024-11-19 10:39:16,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:16,345 INFO L225 Difference]: With dead ends: 1648 [2024-11-19 10:39:16,345 INFO L226 Difference]: Without dead ends: 1645 [2024-11-19 10:39:16,346 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=190, Unknown=0, NotChecked=0, Total=272 [2024-11-19 10:39:16,346 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 821 mSDsluCounter, 565 mSDsCounter, 0 mSdLazyCounter, 307 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 822 SdHoareTripleChecker+Valid, 776 SdHoareTripleChecker+Invalid, 361 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 307 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:16,346 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [822 Valid, 776 Invalid, 361 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 307 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-19 10:39:16,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1645 states. [2024-11-19 10:39:16,429 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1645 to 1121. [2024-11-19 10:39:16,430 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1121 states, 1007 states have (on average 1.5938430983118173) internal successors, (1605), 1059 states have internal predecessors, (1605), 57 states have call successors, (57), 4 states have call predecessors, (57), 4 states have return successors, (57), 57 states have call predecessors, (57), 57 states have call successors, (57) [2024-11-19 10:39:16,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1121 states to 1121 states and 1719 transitions. [2024-11-19 10:39:16,434 INFO L78 Accepts]: Start accepts. Automaton has 1121 states and 1719 transitions. Word has length 47 [2024-11-19 10:39:16,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:16,434 INFO L471 AbstractCegarLoop]: Abstraction has 1121 states and 1719 transitions. [2024-11-19 10:39:16,434 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 10 states have (on average 8.1) internal successors, (81), 10 states have internal predecessors, (81), 2 states have call successors, (4), 1 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:39:16,434 INFO L276 IsEmpty]: Start isEmpty. Operand 1121 states and 1719 transitions. [2024-11-19 10:39:16,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-19 10:39:16,436 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:16,437 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:16,453 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-19 10:39:16,637 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 21 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-19 10:39:16,637 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:16,637 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:16,638 INFO L85 PathProgramCache]: Analyzing trace with hash 2004170517, now seen corresponding path program 1 times [2024-11-19 10:39:16,638 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:16,638 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [141999595] [2024-11-19 10:39:16,638 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:16,638 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:16,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:16,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [321430316] [2024-11-19 10:39:16,648 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:16,648 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:16,648 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:16,651 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:16,653 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-19 10:39:16,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:16,699 INFO L255 TraceCheckSpWp]: Trace formula consists of 134 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 10:39:16,699 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:16,876 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:16,876 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:39:18,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:18,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [141999595] [2024-11-19 10:39:18,006 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:18,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321430316] [2024-11-19 10:39:18,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321430316] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:39:18,006 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:39:18,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-19 10:39:18,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007420337] [2024-11-19 10:39:18,007 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:39:18,007 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:39:18,009 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:18,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:39:18,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=96, Unknown=0, NotChecked=0, Total=132 [2024-11-19 10:39:18,009 INFO L87 Difference]: Start difference. First operand 1121 states and 1719 transitions. Second operand has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:18,293 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:18,293 INFO L93 Difference]: Finished difference Result 1558 states and 2383 transitions. [2024-11-19 10:39:18,294 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:39:18,294 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) Word has length 48 [2024-11-19 10:39:18,294 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:18,299 INFO L225 Difference]: With dead ends: 1558 [2024-11-19 10:39:18,299 INFO L226 Difference]: Without dead ends: 1556 [2024-11-19 10:39:18,299 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2024-11-19 10:39:18,300 INFO L432 NwaCegarLoop]: 102 mSDtfsCounter, 309 mSDsluCounter, 421 mSDsCounter, 0 mSdLazyCounter, 257 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 317 SdHoareTripleChecker+Valid, 523 SdHoareTripleChecker+Invalid, 267 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 257 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:18,300 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [317 Valid, 523 Invalid, 267 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 257 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:39:18,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1556 states. [2024-11-19 10:39:18,376 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1556 to 1426. [2024-11-19 10:39:18,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.6133540372670807) internal successors, (2078), 1340 states have internal predecessors, (2078), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-19 10:39:18,381 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2240 transitions. [2024-11-19 10:39:18,382 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2240 transitions. Word has length 48 [2024-11-19 10:39:18,382 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:18,382 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2240 transitions. [2024-11-19 10:39:18,382 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.333333333333333) internal successors, (44), 7 states have internal predecessors, (44), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 1 states have call successors, (2) [2024-11-19 10:39:18,383 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2240 transitions. [2024-11-19 10:39:18,383 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 50 [2024-11-19 10:39:18,383 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:18,383 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:18,399 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-11-19 10:39:18,587 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:18,587 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:18,588 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:18,588 INFO L85 PathProgramCache]: Analyzing trace with hash 1999743976, now seen corresponding path program 1 times [2024-11-19 10:39:18,588 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:18,588 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1800438897] [2024-11-19 10:39:18,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:18,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:18,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:18,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1464631763] [2024-11-19 10:39:18,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:18,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:18,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:18,601 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:18,601 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-11-19 10:39:18,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:18,638 INFO L255 TraceCheckSpWp]: Trace formula consists of 135 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 10:39:18,639 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:18,824 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:18,824 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:39:18,982 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:18,982 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1800438897] [2024-11-19 10:39:18,983 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:18,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1464631763] [2024-11-19 10:39:18,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1464631763] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:39:18,983 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:39:18,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-19 10:39:18,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50291685] [2024-11-19 10:39:18,983 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:39:18,983 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:39:18,983 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:18,984 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:39:18,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-19 10:39:18,984 INFO L87 Difference]: Start difference. First operand 1426 states and 2240 transitions. Second operand has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:39:19,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:19,310 INFO L93 Difference]: Finished difference Result 1492 states and 2265 transitions. [2024-11-19 10:39:19,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:39:19,311 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 49 [2024-11-19 10:39:19,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:19,315 INFO L225 Difference]: With dead ends: 1492 [2024-11-19 10:39:19,316 INFO L226 Difference]: Without dead ends: 1490 [2024-11-19 10:39:19,316 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 77 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-19 10:39:19,317 INFO L432 NwaCegarLoop]: 101 mSDtfsCounter, 394 mSDsluCounter, 401 mSDsCounter, 0 mSdLazyCounter, 252 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 402 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 266 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 252 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:19,317 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [402 Valid, 502 Invalid, 266 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 252 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:39:19,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2024-11-19 10:39:19,399 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1426. [2024-11-19 10:39:19,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.6055900621118013) internal successors, (2068), 1340 states have internal predecessors, (2068), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-19 10:39:19,404 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2230 transitions. [2024-11-19 10:39:19,404 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2230 transitions. Word has length 49 [2024-11-19 10:39:19,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:19,405 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2230 transitions. [2024-11-19 10:39:19,405 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.5) internal successors, (45), 7 states have internal predecessors, (45), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:39:19,405 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2230 transitions. [2024-11-19 10:39:19,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-19 10:39:19,405 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:19,405 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:19,417 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-11-19 10:39:19,605 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:19,606 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:19,606 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:19,606 INFO L85 PathProgramCache]: Analyzing trace with hash 1862521207, now seen corresponding path program 1 times [2024-11-19 10:39:19,606 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:19,606 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [98861874] [2024-11-19 10:39:19,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:19,607 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:19,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1389280353] [2024-11-19 10:39:19,618 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:19,618 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:19,618 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:19,623 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:19,624 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-11-19 10:39:19,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:19,669 INFO L255 TraceCheckSpWp]: Trace formula consists of 136 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-11-19 10:39:19,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:19,847 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:19,847 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:39:20,469 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:20,469 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [98861874] [2024-11-19 10:39:20,470 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:20,470 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1389280353] [2024-11-19 10:39:20,470 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1389280353] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:39:20,470 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:39:20,470 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-11-19 10:39:20,470 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750784024] [2024-11-19 10:39:20,470 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:39:20,470 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-19 10:39:20,470 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:20,471 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-19 10:39:20,471 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-11-19 10:39:20,471 INFO L87 Difference]: Start difference. First operand 1426 states and 2230 transitions. Second operand has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:39:20,769 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:20,770 INFO L93 Difference]: Finished difference Result 1492 states and 2255 transitions. [2024-11-19 10:39:20,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 10:39:20,770 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) Word has length 50 [2024-11-19 10:39:20,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:20,776 INFO L225 Difference]: With dead ends: 1492 [2024-11-19 10:39:20,776 INFO L226 Difference]: Without dead ends: 1490 [2024-11-19 10:39:20,778 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 79 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-11-19 10:39:20,779 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 361 mSDsluCounter, 527 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 373 SdHoareTripleChecker+Valid, 693 SdHoareTripleChecker+Invalid, 268 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:20,779 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [373 Valid, 693 Invalid, 268 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:39:20,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1490 states. [2024-11-19 10:39:20,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1490 to 1426. [2024-11-19 10:39:20,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.5978260869565217) internal successors, (2058), 1340 states have internal predecessors, (2058), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-19 10:39:20,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2220 transitions. [2024-11-19 10:39:20,884 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2220 transitions. Word has length 50 [2024-11-19 10:39:20,884 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:20,884 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2220 transitions. [2024-11-19 10:39:20,885 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 7.666666666666667) internal successors, (46), 7 states have internal predecessors, (46), 2 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (2), 1 states have call predecessors, (2), 2 states have call successors, (2) [2024-11-19 10:39:20,885 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2220 transitions. [2024-11-19 10:39:20,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-19 10:39:20,885 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:20,885 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:20,901 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-11-19 10:39:21,089 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:21,089 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:21,090 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:21,090 INFO L85 PathProgramCache]: Analyzing trace with hash -2082349830, now seen corresponding path program 1 times [2024-11-19 10:39:21,090 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:21,090 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427673636] [2024-11-19 10:39:21,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:21,090 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:21,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:21,211 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-19 10:39:21,211 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:21,211 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427673636] [2024-11-19 10:39:21,212 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427673636] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:39:21,212 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [15960619] [2024-11-19 10:39:21,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:21,212 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:21,212 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:21,214 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:21,215 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-11-19 10:39:21,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:21,258 INFO L255 TraceCheckSpWp]: Trace formula consists of 121 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 10:39:21,259 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:21,358 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 10:39:21,359 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:21,359 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [15960619] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:21,359 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:39:21,359 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [8] total 11 [2024-11-19 10:39:21,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1411584988] [2024-11-19 10:39:21,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:21,360 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:39:21,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:21,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:39:21,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=103, Unknown=0, NotChecked=0, Total=132 [2024-11-19 10:39:21,360 INFO L87 Difference]: Start difference. First operand 1426 states and 2220 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:39:21,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:21,855 INFO L93 Difference]: Finished difference Result 1458 states and 2228 transitions. [2024-11-19 10:39:21,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:39:21,856 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2024-11-19 10:39:21,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:21,861 INFO L225 Difference]: With dead ends: 1458 [2024-11-19 10:39:21,861 INFO L226 Difference]: Without dead ends: 1457 [2024-11-19 10:39:21,861 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=41, Invalid=141, Unknown=0, NotChecked=0, Total=182 [2024-11-19 10:39:21,862 INFO L432 NwaCegarLoop]: 96 mSDtfsCounter, 314 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 318 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:21,862 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [318 Valid, 317 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 10:39:21,863 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-19 10:39:21,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1426. [2024-11-19 10:39:21,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.595496894409938) internal successors, (2055), 1340 states have internal predecessors, (2055), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-19 10:39:21,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2217 transitions. [2024-11-19 10:39:21,938 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2217 transitions. Word has length 52 [2024-11-19 10:39:21,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:21,938 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2217 transitions. [2024-11-19 10:39:21,938 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 5 states have internal predecessors, (38), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:39:21,938 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2217 transitions. [2024-11-19 10:39:21,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2024-11-19 10:39:21,939 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:21,939 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:21,956 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-11-19 10:39:22,139 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:22,140 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr10ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:22,140 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:22,140 INFO L85 PathProgramCache]: Analyzing trace with hash 1903582666, now seen corresponding path program 1 times [2024-11-19 10:39:22,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:22,140 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [434561126] [2024-11-19 10:39:22,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:22,140 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:22,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:22,150 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1630563817] [2024-11-19 10:39:22,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:22,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:22,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:22,152 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:22,155 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-11-19 10:39:22,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:22,202 INFO L255 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-19 10:39:22,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:22,476 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:22,476 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:39:24,259 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:24,260 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:24,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [434561126] [2024-11-19 10:39:24,260 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:24,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1630563817] [2024-11-19 10:39:24,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1630563817] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:39:24,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:39:24,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 14 [2024-11-19 10:39:24,261 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1435933965] [2024-11-19 10:39:24,261 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:39:24,261 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-11-19 10:39:24,261 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:24,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-11-19 10:39:24,262 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-11-19 10:39:24,262 INFO L87 Difference]: Start difference. First operand 1426 states and 2217 transitions. Second operand has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 13 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 10:39:26,754 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:26,754 INFO L93 Difference]: Finished difference Result 1499 states and 2242 transitions. [2024-11-19 10:39:26,754 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-11-19 10:39:26,755 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 13 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 51 [2024-11-19 10:39:26,755 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:26,759 INFO L225 Difference]: With dead ends: 1499 [2024-11-19 10:39:26,759 INFO L226 Difference]: Without dead ends: 1498 [2024-11-19 10:39:26,760 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 103 GetRequests, 87 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=71, Invalid=235, Unknown=0, NotChecked=0, Total=306 [2024-11-19 10:39:26,760 INFO L432 NwaCegarLoop]: 166 mSDtfsCounter, 552 mSDsluCounter, 606 mSDsCounter, 0 mSdLazyCounter, 605 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 562 SdHoareTripleChecker+Valid, 772 SdHoareTripleChecker+Invalid, 638 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:26,760 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [562 Valid, 772 Invalid, 638 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 605 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-19 10:39:26,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1498 states. [2024-11-19 10:39:26,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1498 to 1426. [2024-11-19 10:39:26,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.5885093167701863) internal successors, (2046), 1340 states have internal predecessors, (2046), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-19 10:39:26,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2208 transitions. [2024-11-19 10:39:26,843 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2208 transitions. Word has length 51 [2024-11-19 10:39:26,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:26,843 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2208 transitions. [2024-11-19 10:39:26,843 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 6.285714285714286) internal successors, (88), 13 states have internal predecessors, (88), 1 states have call successors, (2), 1 states have call predecessors, (2), 2 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-19 10:39:26,843 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2208 transitions. [2024-11-19 10:39:26,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-11-19 10:39:26,844 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:26,844 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:26,860 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-11-19 10:39:27,044 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable33 [2024-11-19 10:39:27,045 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:27,045 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:27,046 INFO L85 PathProgramCache]: Analyzing trace with hash -128335169, now seen corresponding path program 1 times [2024-11-19 10:39:27,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:27,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1655954214] [2024-11-19 10:39:27,046 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:27,046 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:27,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:27,056 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1167706381] [2024-11-19 10:39:27,056 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:27,056 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:27,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:27,058 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:27,061 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-11-19 10:39:27,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:27,104 INFO L255 TraceCheckSpWp]: Trace formula consists of 122 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-19 10:39:27,105 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:27,207 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-19 10:39:27,207 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:27,207 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:27,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1655954214] [2024-11-19 10:39:27,207 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:27,207 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1167706381] [2024-11-19 10:39:27,208 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1167706381] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:27,208 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:27,208 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:39:27,208 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618859270] [2024-11-19 10:39:27,208 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:27,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:39:27,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:27,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:39:27,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:39:27,209 INFO L87 Difference]: Start difference. First operand 1426 states and 2208 transitions. Second operand has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:39:27,494 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:27,494 INFO L93 Difference]: Finished difference Result 1458 states and 2216 transitions. [2024-11-19 10:39:27,494 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:39:27,495 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2024-11-19 10:39:27,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:27,499 INFO L225 Difference]: With dead ends: 1458 [2024-11-19 10:39:27,499 INFO L226 Difference]: Without dead ends: 1457 [2024-11-19 10:39:27,500 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 49 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-19 10:39:27,500 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 311 mSDsluCounter, 221 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 315 SdHoareTripleChecker+Valid, 319 SdHoareTripleChecker+Invalid, 212 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:27,501 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [315 Valid, 319 Invalid, 212 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-19 10:39:27,502 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1457 states. [2024-11-19 10:39:27,586 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1457 to 1426. [2024-11-19 10:39:27,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1426 states, 1288 states have (on average 1.5861801242236024) internal successors, (2043), 1340 states have internal predecessors, (2043), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-19 10:39:27,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1426 states to 1426 states and 2205 transitions. [2024-11-19 10:39:27,591 INFO L78 Accepts]: Start accepts. Automaton has 1426 states and 2205 transitions. Word has length 53 [2024-11-19 10:39:27,591 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:27,591 INFO L471 AbstractCegarLoop]: Abstraction has 1426 states and 2205 transitions. [2024-11-19 10:39:27,591 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.75) internal successors, (39), 5 states have internal predecessors, (39), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:39:27,591 INFO L276 IsEmpty]: Start isEmpty. Operand 1426 states and 2205 transitions. [2024-11-19 10:39:27,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-19 10:39:27,592 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:27,592 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:27,610 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Forceful destruction successful, exit code 0 [2024-11-19 10:39:27,796 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-11-19 10:39:27,797 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:27,797 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:27,797 INFO L85 PathProgramCache]: Analyzing trace with hash -1118479399, now seen corresponding path program 1 times [2024-11-19 10:39:27,797 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:27,797 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1321238236] [2024-11-19 10:39:27,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:27,797 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:27,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:27,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2105701023] [2024-11-19 10:39:27,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:27,807 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:27,807 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:27,812 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:27,819 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-11-19 10:39:27,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:27,856 INFO L255 TraceCheckSpWp]: Trace formula consists of 138 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-11-19 10:39:27,856 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:28,027 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:28,027 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:39:32,660 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 10 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-11-19 10:39:32,660 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:32,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1321238236] [2024-11-19 10:39:32,660 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:32,660 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2105701023] [2024-11-19 10:39:32,661 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2105701023] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:39:32,661 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:39:32,661 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-11-19 10:39:32,661 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316118774] [2024-11-19 10:39:32,661 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:39:32,661 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-19 10:39:32,661 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:32,662 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-19 10:39:32,662 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=62, Unknown=1, NotChecked=0, Total=90 [2024-11-19 10:39:32,662 INFO L87 Difference]: Start difference. First operand 1426 states and 2205 transitions. Second operand has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:39:34,795 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:34,795 INFO L93 Difference]: Finished difference Result 1501 states and 2232 transitions. [2024-11-19 10:39:34,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-19 10:39:34,796 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2024-11-19 10:39:34,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:34,801 INFO L225 Difference]: With dead ends: 1501 [2024-11-19 10:39:34,801 INFO L226 Difference]: Without dead ends: 1499 [2024-11-19 10:39:34,802 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.5s TimeCoverageRelationStatistics Valid=51, Invalid=104, Unknown=1, NotChecked=0, Total=156 [2024-11-19 10:39:34,802 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 530 mSDsluCounter, 556 mSDsCounter, 0 mSdLazyCounter, 451 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 539 SdHoareTripleChecker+Valid, 740 SdHoareTripleChecker+Invalid, 473 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 451 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.0s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:34,803 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [539 Valid, 740 Invalid, 473 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 451 Invalid, 0 Unknown, 0 Unchecked, 2.0s Time] [2024-11-19 10:39:34,804 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1499 states. [2024-11-19 10:39:34,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1499 to 1427. [2024-11-19 10:39:34,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1427 states, 1289 states have (on average 1.5748642358417377) internal successors, (2030), 1341 states have internal predecessors, (2030), 81 states have call successors, (81), 4 states have call predecessors, (81), 4 states have return successors, (81), 81 states have call predecessors, (81), 81 states have call successors, (81) [2024-11-19 10:39:34,892 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1427 states to 1427 states and 2192 transitions. [2024-11-19 10:39:34,893 INFO L78 Accepts]: Start accepts. Automaton has 1427 states and 2192 transitions. Word has length 52 [2024-11-19 10:39:34,893 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:34,893 INFO L471 AbstractCegarLoop]: Abstraction has 1427 states and 2192 transitions. [2024-11-19 10:39:34,893 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 9.555555555555555) internal successors, (86), 10 states have internal predecessors, (86), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-11-19 10:39:34,893 INFO L276 IsEmpty]: Start isEmpty. Operand 1427 states and 2192 transitions. [2024-11-19 10:39:34,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-19 10:39:34,894 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:34,894 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:34,911 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Ended with exit code 0 [2024-11-19 10:39:35,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-11-19 10:39:35,095 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:35,095 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:35,095 INFO L85 PathProgramCache]: Analyzing trace with hash 676944184, now seen corresponding path program 1 times [2024-11-19 10:39:35,095 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:35,095 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485911818] [2024-11-19 10:39:35,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:35,096 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:35,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:35,104 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [768207418] [2024-11-19 10:39:35,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:35,105 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:35,105 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:35,107 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:35,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-11-19 10:39:35,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:35,147 INFO L255 TraceCheckSpWp]: Trace formula consists of 132 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 10:39:35,148 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:35,218 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 10:39:35,218 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:35,218 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:35,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1485911818] [2024-11-19 10:39:35,218 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:35,218 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768207418] [2024-11-19 10:39:35,218 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768207418] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:35,219 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:35,219 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:39:35,219 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1240314134] [2024-11-19 10:39:35,219 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:35,219 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:39:35,219 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:35,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:39:35,220 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:39:35,220 INFO L87 Difference]: Start difference. First operand 1427 states and 2192 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:39:35,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:35,713 INFO L93 Difference]: Finished difference Result 1489 states and 2259 transitions. [2024-11-19 10:39:35,713 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:39:35,714 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 59 [2024-11-19 10:39:35,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:35,718 INFO L225 Difference]: With dead ends: 1489 [2024-11-19 10:39:35,719 INFO L226 Difference]: Without dead ends: 1486 [2024-11-19 10:39:35,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 55 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 10:39:35,719 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 247 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 215 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:35,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 307 Invalid, 215 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-19 10:39:35,721 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2024-11-19 10:39:35,797 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1461. [2024-11-19 10:39:35,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1319 states have (on average 1.5648218347232752) internal successors, (2064), 1371 states have internal predecessors, (2064), 85 states have call successors, (85), 4 states have call predecessors, (85), 4 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-19 10:39:35,800 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2234 transitions. [2024-11-19 10:39:35,801 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2234 transitions. Word has length 59 [2024-11-19 10:39:35,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:35,801 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2234 transitions. [2024-11-19 10:39:35,802 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:39:35,802 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2234 transitions. [2024-11-19 10:39:35,802 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-11-19 10:39:35,802 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:35,802 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:35,819 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-11-19 10:39:36,003 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable36,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:36,004 INFO L396 AbstractCegarLoop]: === Iteration 38 === Targeting ULTIMATE.startErr12ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:36,004 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:36,004 INFO L85 PathProgramCache]: Analyzing trace with hash -150154300, now seen corresponding path program 1 times [2024-11-19 10:39:36,004 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:36,004 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [764541811] [2024-11-19 10:39:36,004 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:36,005 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:36,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:36,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [386636190] [2024-11-19 10:39:36,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:36,015 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:36,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:36,016 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:36,018 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-11-19 10:39:36,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:36,066 INFO L255 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 10:39:36,067 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:36,293 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:36,294 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:39:48,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:48,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [764541811] [2024-11-19 10:39:48,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:48,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [386636190] [2024-11-19 10:39:48,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [386636190] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:39:48,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:39:48,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-19 10:39:48,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [880656463] [2024-11-19 10:39:48,494 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:39:48,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 10:39:48,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:48,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 10:39:48,495 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=112, Unknown=3, NotChecked=0, Total=156 [2024-11-19 10:39:48,495 INFO L87 Difference]: Start difference. First operand 1461 states and 2234 transitions. Second operand has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 10:39:48,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:48,828 INFO L93 Difference]: Finished difference Result 1583 states and 2367 transitions. [2024-11-19 10:39:48,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 10:39:48,829 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 58 [2024-11-19 10:39:48,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:48,838 INFO L225 Difference]: With dead ends: 1583 [2024-11-19 10:39:48,838 INFO L226 Difference]: Without dead ends: 1581 [2024-11-19 10:39:48,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 12.1s TimeCoverageRelationStatistics Valid=41, Invalid=112, Unknown=3, NotChecked=0, Total=156 [2024-11-19 10:39:48,843 INFO L432 NwaCegarLoop]: 162 mSDtfsCounter, 493 mSDsluCounter, 642 mSDsCounter, 0 mSdLazyCounter, 347 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 504 SdHoareTripleChecker+Valid, 804 SdHoareTripleChecker+Invalid, 358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 347 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:48,844 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [504 Valid, 804 Invalid, 358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 347 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:39:48,845 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-11-19 10:39:48,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1461. [2024-11-19 10:39:48,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1319 states have (on average 1.55724033358605) internal successors, (2054), 1371 states have internal predecessors, (2054), 85 states have call successors, (85), 4 states have call predecessors, (85), 4 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-19 10:39:48,919 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2224 transitions. [2024-11-19 10:39:48,920 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2224 transitions. Word has length 58 [2024-11-19 10:39:48,920 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:48,920 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2224 transitions. [2024-11-19 10:39:48,920 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.428571428571429) internal successors, (52), 8 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 10:39:48,920 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2224 transitions. [2024-11-19 10:39:48,921 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-19 10:39:48,921 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:48,921 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:48,939 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Ended with exit code 0 [2024-11-19 10:39:49,121 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable37 [2024-11-19 10:39:49,122 INFO L396 AbstractCegarLoop]: === Iteration 39 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:49,122 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:49,122 INFO L85 PathProgramCache]: Analyzing trace with hash -489566650, now seen corresponding path program 1 times [2024-11-19 10:39:49,122 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:49,122 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727965882] [2024-11-19 10:39:49,122 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:49,123 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:49,131 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1328745097] [2024-11-19 10:39:49,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:49,131 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:49,131 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:49,133 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:49,135 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-11-19 10:39:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:49,172 INFO L255 TraceCheckSpWp]: Trace formula consists of 133 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-19 10:39:49,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:49,254 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-19 10:39:49,254 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-19 10:39:49,254 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:39:49,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727965882] [2024-11-19 10:39:49,254 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:39:49,254 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1328745097] [2024-11-19 10:39:49,254 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1328745097] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 10:39:49,254 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 10:39:49,255 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-19 10:39:49,255 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824576210] [2024-11-19 10:39:49,255 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 10:39:49,255 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 10:39:49,255 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:39:49,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 10:39:49,256 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-19 10:39:49,256 INFO L87 Difference]: Start difference. First operand 1461 states and 2224 transitions. Second operand has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:39:49,644 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:39:49,644 INFO L93 Difference]: Finished difference Result 1487 states and 2240 transitions. [2024-11-19 10:39:49,645 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-19 10:39:49,645 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 60 [2024-11-19 10:39:49,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:39:49,648 INFO L225 Difference]: With dead ends: 1487 [2024-11-19 10:39:49,649 INFO L226 Difference]: Without dead ends: 1486 [2024-11-19 10:39:49,649 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 61 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-19 10:39:49,649 INFO L432 NwaCegarLoop]: 98 mSDtfsCounter, 259 mSDsluCounter, 142 mSDsCounter, 0 mSdLazyCounter, 152 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 240 SdHoareTripleChecker+Invalid, 162 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 152 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:39:49,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 240 Invalid, 162 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 152 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:39:49,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1486 states. [2024-11-19 10:39:49,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1486 to 1461. [2024-11-19 10:39:49,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1319 states have (on average 1.5549658832448825) internal successors, (2051), 1371 states have internal predecessors, (2051), 85 states have call successors, (85), 4 states have call predecessors, (85), 4 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-19 10:39:49,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2221 transitions. [2024-11-19 10:39:49,722 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2221 transitions. Word has length 60 [2024-11-19 10:39:49,722 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:39:49,722 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2221 transitions. [2024-11-19 10:39:49,722 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 10.25) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 10:39:49,722 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2221 transitions. [2024-11-19 10:39:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-19 10:39:49,724 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:39:49,724 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:39:49,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Forceful destruction successful, exit code 0 [2024-11-19 10:39:49,924 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable38 [2024-11-19 10:39:49,925 INFO L396 AbstractCegarLoop]: === Iteration 40 === Targeting ULTIMATE.startErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:39:49,925 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:39:49,926 INFO L85 PathProgramCache]: Analyzing trace with hash -359815900, now seen corresponding path program 1 times [2024-11-19 10:39:49,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:39:49,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2006671405] [2024-11-19 10:39:49,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:49,926 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:39:49,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:39:49,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2028298836] [2024-11-19 10:39:49,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:39:49,941 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:39:49,941 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:39:49,942 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:39:49,943 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-11-19 10:39:49,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:39:49,988 INFO L255 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 10:39:49,989 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:39:50,223 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 13 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:39:50,224 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:40:03,286 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:40:03,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2006671405] [2024-11-19 10:40:03,286 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:40:03,286 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2028298836] [2024-11-19 10:40:03,286 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2028298836] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-19 10:40:03,286 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-19 10:40:03,286 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-19 10:40:03,286 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1217246636] [2024-11-19 10:40:03,287 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-19 10:40:03,287 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-19 10:40:03,287 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:40:03,287 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-19 10:40:03,287 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=111, Unknown=3, NotChecked=0, Total=156 [2024-11-19 10:40:03,287 INFO L87 Difference]: Start difference. First operand 1461 states and 2221 transitions. Second operand has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 10:40:03,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:40:03,622 INFO L93 Difference]: Finished difference Result 1583 states and 2354 transitions. [2024-11-19 10:40:03,622 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-19 10:40:03,623 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 59 [2024-11-19 10:40:03,623 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:40:03,626 INFO L225 Difference]: With dead ends: 1583 [2024-11-19 10:40:03,626 INFO L226 Difference]: Without dead ends: 1581 [2024-11-19 10:40:03,626 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 107 GetRequests, 95 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 12.2s TimeCoverageRelationStatistics Valid=53, Invalid=126, Unknown=3, NotChecked=0, Total=182 [2024-11-19 10:40:03,627 INFO L432 NwaCegarLoop]: 103 mSDtfsCounter, 385 mSDsluCounter, 456 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 396 SdHoareTripleChecker+Valid, 559 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-19 10:40:03,627 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [396 Valid, 559 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-19 10:40:03,628 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1581 states. [2024-11-19 10:40:03,692 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1581 to 1461. [2024-11-19 10:40:03,693 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1461 states, 1319 states have (on average 1.5473843821076574) internal successors, (2041), 1371 states have internal predecessors, (2041), 85 states have call successors, (85), 4 states have call predecessors, (85), 4 states have return successors, (85), 85 states have call predecessors, (85), 85 states have call successors, (85) [2024-11-19 10:40:03,694 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1461 states to 1461 states and 2211 transitions. [2024-11-19 10:40:03,694 INFO L78 Accepts]: Start accepts. Automaton has 1461 states and 2211 transitions. Word has length 59 [2024-11-19 10:40:03,695 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:40:03,695 INFO L471 AbstractCegarLoop]: Abstraction has 1461 states and 2211 transitions. [2024-11-19 10:40:03,695 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 7 states have (on average 7.571428571428571) internal successors, (53), 8 states have internal predecessors, (53), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-19 10:40:03,695 INFO L276 IsEmpty]: Start isEmpty. Operand 1461 states and 2211 transitions. [2024-11-19 10:40:03,695 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2024-11-19 10:40:03,695 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:40:03,695 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:40:03,708 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Forceful destruction successful, exit code 0 [2024-11-19 10:40:03,896 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable39 [2024-11-19 10:40:03,896 INFO L396 AbstractCegarLoop]: === Iteration 41 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:40:03,896 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:40:03,896 INFO L85 PathProgramCache]: Analyzing trace with hash 1730609094, now seen corresponding path program 1 times [2024-11-19 10:40:03,897 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:40:03,897 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611158519] [2024-11-19 10:40:03,897 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:40:03,897 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:40:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:40:03,906 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [909440365] [2024-11-19 10:40:03,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:40:03,906 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:40:03,906 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:40:03,908 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:40:03,909 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-11-19 10:40:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:40:03,954 INFO L255 TraceCheckSpWp]: Trace formula consists of 150 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 10:40:03,955 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:40:04,175 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:40:04,175 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:40:08,495 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:40:08,495 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:40:08,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611158519] [2024-11-19 10:40:08,495 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:40:08,495 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909440365] [2024-11-19 10:40:08,496 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909440365] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:40:08,496 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:40:08,496 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-11-19 10:40:08,496 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511681042] [2024-11-19 10:40:08,496 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:40:08,496 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 10:40:08,496 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:40:08,497 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 10:40:08,497 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=184, Unknown=1, NotChecked=0, Total=240 [2024-11-19 10:40:08,497 INFO L87 Difference]: Start difference. First operand 1461 states and 2211 transitions. Second operand has 16 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 10:40:23,216 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [1] [2024-11-19 10:40:23,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 10:40:23,459 INFO L93 Difference]: Finished difference Result 3564 states and 5372 transitions. [2024-11-19 10:40:23,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-19 10:40:23,459 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) Word has length 60 [2024-11-19 10:40:23,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 10:40:23,465 INFO L225 Difference]: With dead ends: 3564 [2024-11-19 10:40:23,465 INFO L226 Difference]: Without dead ends: 3559 [2024-11-19 10:40:23,466 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 131 ImplicationChecksByTransitivity, 12.4s TimeCoverageRelationStatistics Valid=201, Invalid=552, Unknown=3, NotChecked=0, Total=756 [2024-11-19 10:40:23,468 INFO L432 NwaCegarLoop]: 121 mSDtfsCounter, 1235 mSDsluCounter, 985 mSDsCounter, 0 mSdLazyCounter, 756 mSolverCounterSat, 95 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1237 SdHoareTripleChecker+Valid, 1106 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 95 IncrementalHoareTripleChecker+Valid, 756 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.6s IncrementalHoareTripleChecker+Time [2024-11-19 10:40:23,469 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1237 Valid, 1106 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [95 Valid, 756 Invalid, 1 Unknown, 0 Unchecked, 6.6s Time] [2024-11-19 10:40:23,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3559 states. [2024-11-19 10:40:23,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3559 to 1744. [2024-11-19 10:40:23,593 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1744 states, 1600 states have (on average 1.53) internal successors, (2448), 1652 states have internal predecessors, (2448), 87 states have call successors, (87), 4 states have call predecessors, (87), 4 states have return successors, (87), 87 states have call predecessors, (87), 87 states have call successors, (87) [2024-11-19 10:40:23,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1744 states to 1744 states and 2622 transitions. [2024-11-19 10:40:23,596 INFO L78 Accepts]: Start accepts. Automaton has 1744 states and 2622 transitions. Word has length 60 [2024-11-19 10:40:23,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 10:40:23,597 INFO L471 AbstractCegarLoop]: Abstraction has 1744 states and 2622 transitions. [2024-11-19 10:40:23,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 14 states have (on average 7.142857142857143) internal successors, (100), 14 states have internal predecessors, (100), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6) [2024-11-19 10:40:23,597 INFO L276 IsEmpty]: Start isEmpty. Operand 1744 states and 2622 transitions. [2024-11-19 10:40:23,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2024-11-19 10:40:23,598 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 10:40:23,598 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 10:40:23,614 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Ended with exit code 0 [2024-11-19 10:40:23,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable40,33 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:40:23,799 INFO L396 AbstractCegarLoop]: === Iteration 42 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 53 more)] === [2024-11-19 10:40:23,799 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 10:40:23,799 INFO L85 PathProgramCache]: Analyzing trace with hash 2109274470, now seen corresponding path program 1 times [2024-11-19 10:40:23,800 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 10:40:23,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [554687876] [2024-11-19 10:40:23,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:40:23,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 10:40:23,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-19 10:40:23,812 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2067129885] [2024-11-19 10:40:23,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 10:40:23,812 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-19 10:40:23,812 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 10:40:23,814 INFO L229 MonitoredProcess]: Starting monitored process 34 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-19 10:40:23,815 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (34)] Waiting until timeout for monitored process [2024-11-19 10:40:23,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 10:40:23,861 INFO L255 TraceCheckSpWp]: Trace formula consists of 151 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-19 10:40:23,862 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-19 10:40:24,145 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:40:24,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-19 10:40:29,163 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 3 proven. 10 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-11-19 10:40:29,163 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 10:40:29,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [554687876] [2024-11-19 10:40:29,163 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-19 10:40:29,163 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067129885] [2024-11-19 10:40:29,163 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067129885] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-19 10:40:29,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-19 10:40:29,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 15 [2024-11-19 10:40:29,164 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [219897170] [2024-11-19 10:40:29,164 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-19 10:40:29,164 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-11-19 10:40:29,164 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 10:40:29,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-11-19 10:40:29,165 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=184, Unknown=1, NotChecked=0, Total=240 [2024-11-19 10:40:29,165 INFO L87 Difference]: Start difference. First operand 1744 states and 2622 transitions. Second operand has 16 states, 14 states have (on average 7.285714285714286) internal successors, (102), 14 states have internal predecessors, (102), 4 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 4 states have call successors, (6)