./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/no-overflow.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/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 /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.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 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-20 18:47:25,026 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-20 18:47:25,091 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-11-20 18:47:25,098 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-20 18:47:25,098 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-20 18:47:25,128 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-20 18:47:25,129 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-20 18:47:25,129 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-20 18:47:25,130 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-20 18:47:25,130 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-20 18:47:25,130 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-20 18:47:25,131 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-20 18:47:25,131 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-20 18:47:25,132 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-20 18:47:25,132 INFO L153 SettingsManager]: * Use SBE=true [2024-11-20 18:47:25,132 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-20 18:47:25,133 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-20 18:47:25,133 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-20 18:47:25,133 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-20 18:47:25,134 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-20 18:47:25,134 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-20 18:47:25,135 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-20 18:47:25,138 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-20 18:47:25,138 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-20 18:47:25,138 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-20 18:47:25,139 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-11-20 18:47:25,139 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-11-20 18:47:25,139 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-20 18:47:25,139 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-20 18:47:25,139 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-20 18:47:25,140 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-20 18:47:25,140 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-20 18:47:25,140 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-20 18:47:25,140 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-20 18:47:25,140 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 18:47:25,141 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-20 18:47:25,141 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-20 18:47:25,141 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-20 18:47:25,141 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-20 18:47:25,142 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-20 18:47:25,142 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-20 18:47:25,142 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-20 18:47:25,142 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-20 18:47:25,143 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-20 18:47:25,143 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6977cec8a403ff3f16926270da45a38f7b1f51a39c72ba3797fb74b9637fd796 [2024-11-20 18:47:25,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-20 18:47:25,388 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-20 18:47:25,392 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-20 18:47:25,393 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-20 18:47:25,393 INFO L274 PluginConnector]: CDTParser initialized [2024-11-20 18:47:25,394 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c [2024-11-20 18:47:26,728 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-20 18:47:26,886 INFO L384 CDTParser]: Found 1 translation units. [2024-11-20 18:47:26,888 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/hard-ll_valuebound20.c [2024-11-20 18:47:26,894 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8002d6c38/5aa151f8aeac46d89752e15c59eb6643/FLAG8f6cbe17d [2024-11-20 18:47:27,280 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8002d6c38/5aa151f8aeac46d89752e15c59eb6643 [2024-11-20 18:47:27,283 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-20 18:47:27,284 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-20 18:47:27,286 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-20 18:47:27,287 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-20 18:47:27,292 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-20 18:47:27,293 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,294 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37c26621 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27, skipping insertion in model container [2024-11-20 18:47:27,294 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,320 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-20 18:47:27,537 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 18:47:27,545 INFO L200 MainTranslator]: Completed pre-run [2024-11-20 18:47:27,565 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-20 18:47:27,580 INFO L204 MainTranslator]: Completed translation [2024-11-20 18:47:27,580 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27 WrapperNode [2024-11-20 18:47:27,581 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-20 18:47:27,582 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-20 18:47:27,582 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-20 18:47:27,582 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-20 18:47:27,587 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,592 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,618 INFO L138 Inliner]: procedures = 14, calls = 18, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 86 [2024-11-20 18:47:27,619 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-20 18:47:27,619 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-20 18:47:27,620 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-20 18:47:27,620 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-20 18:47:27,628 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,628 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,630 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,646 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]. [2024-11-20 18:47:27,646 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,646 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,649 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,652 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,654 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,655 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,656 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-20 18:47:27,658 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-20 18:47:27,658 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-20 18:47:27,658 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-20 18:47:27,659 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (1/1) ... [2024-11-20 18:47:27,672 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-20 18:47:27,681 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:27,695 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) [2024-11-20 18:47:27,701 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 [2024-11-20 18:47:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-20 18:47:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-20 18:47:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-20 18:47:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-20 18:47:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-20 18:47:27,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-20 18:47:27,747 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-11-20 18:47:27,748 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-11-20 18:47:27,796 INFO L238 CfgBuilder]: Building ICFG [2024-11-20 18:47:27,800 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-20 18:47:28,136 INFO L? ?]: Removed 50 outVars from TransFormulas that were not future-live. [2024-11-20 18:47:28,136 INFO L287 CfgBuilder]: Performing block encoding [2024-11-20 18:47:28,150 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-20 18:47:28,150 INFO L316 CfgBuilder]: Removed 2 assume(true) statements. [2024-11-20 18:47:28,151 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:47:28 BoogieIcfgContainer [2024-11-20 18:47:28,151 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-20 18:47:28,153 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-20 18:47:28,154 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-20 18:47:28,158 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-20 18:47:28,158 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.11 06:47:27" (1/3) ... [2024-11-20 18:47:28,159 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592b9a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:47:28, skipping insertion in model container [2024-11-20 18:47:28,159 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.11 06:47:27" (2/3) ... [2024-11-20 18:47:28,160 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@592b9a9b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.11 06:47:28, skipping insertion in model container [2024-11-20 18:47:28,160 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.11 06:47:28" (3/3) ... [2024-11-20 18:47:28,161 INFO L112 eAbstractionObserver]: Analyzing ICFG hard-ll_valuebound20.c [2024-11-20 18:47:28,178 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-20 18:47:28,178 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 24 error locations. [2024-11-20 18:47:28,242 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-20 18:47:28,248 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;@46b2d2cd, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-20 18:47:28,249 INFO L334 AbstractCegarLoop]: Starting to check reachability of 24 error locations. [2024-11-20 18:47:28,253 INFO L276 IsEmpty]: Start isEmpty. Operand has 81 states, 44 states have (on average 1.75) internal successors, (77), 68 states have internal predecessors, (77), 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) [2024-11-20 18:47:28,258 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-11-20 18:47:28,259 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:28,259 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:47:28,260 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:28,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:28,264 INFO L85 PathProgramCache]: Analyzing trace with hash -1890980195, now seen corresponding path program 1 times [2024-11-20 18:47:28,272 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:28,273 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2077212678] [2024-11-20 18:47:28,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:28,274 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:28,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:28,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:28,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:28,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:28,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:28,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:28,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:28,472 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-11-20 18:47:28,473 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:28,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2077212678] [2024-11-20 18:47:28,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2077212678] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:28,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:28,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:47:28,477 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1682503420] [2024-11-20 18:47:28,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:28,482 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-20 18:47:28,482 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:28,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-20 18:47:28,505 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 18:47:28,507 INFO L87 Difference]: Start difference. First operand has 81 states, 44 states have (on average 1.75) internal successors, (77), 68 states have internal predecessors, (77), 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) 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:47:28,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:28,540 INFO L93 Difference]: Finished difference Result 158 states and 199 transitions. [2024-11-20 18:47:28,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-20 18:47:28,542 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 22 [2024-11-20 18:47:28,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:28,549 INFO L225 Difference]: With dead ends: 158 [2024-11-20 18:47:28,549 INFO L226 Difference]: Without dead ends: 73 [2024-11-20 18:47:28,554 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-20 18:47:28,557 INFO L432 NwaCegarLoop]: 90 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, 90 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 [2024-11-20 18:47:28,558 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 90 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:47:28,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-20 18:47:28,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-20 18:47:28,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 39 states have (on average 1.6666666666666667) internal successors, (65), 62 states have internal predecessors, (65), 8 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-11-20 18:47:28,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 81 transitions. [2024-11-20 18:47:28,599 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 81 transitions. Word has length 22 [2024-11-20 18:47:28,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:28,599 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 81 transitions. [2024-11-20 18:47:28,599 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, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-20 18:47:28,600 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 81 transitions. [2024-11-20 18:47:28,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-11-20 18:47:28,602 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:28,603 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] [2024-11-20 18:47:28,603 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-20 18:47:28,603 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:28,604 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:28,604 INFO L85 PathProgramCache]: Analyzing trace with hash 422543756, now seen corresponding path program 1 times [2024-11-20 18:47:28,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:28,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1400628992] [2024-11-20 18:47:28,605 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:28,605 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:28,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:47:28,666 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [495070823] [2024-11-20 18:47:28,667 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:28,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:28,668 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:28,670 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) [2024-11-20 18:47:28,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-20 18:47:28,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:28,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 18:47:28,759 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:28,806 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-11-20 18:47:28,807 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:47:28,808 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:28,808 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1400628992] [2024-11-20 18:47:28,809 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:47:28,809 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [495070823] [2024-11-20 18:47:28,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [495070823] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:28,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:28,810 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:47:28,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1687174399] [2024-11-20 18:47:28,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:28,812 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:47:28,813 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:28,814 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:47:28,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:28,814 INFO L87 Difference]: Start difference. First operand 73 states and 81 transitions. Second operand has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-20 18:47:28,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:28,914 INFO L93 Difference]: Finished difference Result 149 states and 168 transitions. [2024-11-20 18:47:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:47:28,915 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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 31 [2024-11-20 18:47:28,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:28,917 INFO L225 Difference]: With dead ends: 149 [2024-11-20 18:47:28,919 INFO L226 Difference]: Without dead ends: 100 [2024-11-20 18:47:28,919 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:28,920 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 20 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:28,921 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 131 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:47:28,923 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2024-11-20 18:47:28,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 94. [2024-11-20 18:47:28,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 94 states, 55 states have (on average 1.6) internal successors, (88), 78 states have internal predecessors, (88), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 18:47:28,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 114 transitions. [2024-11-20 18:47:28,935 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 114 transitions. Word has length 31 [2024-11-20 18:47:28,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:28,936 INFO L471 AbstractCegarLoop]: Abstraction has 94 states and 114 transitions. [2024-11-20 18:47:28,936 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 6.0) internal successors, (12), 3 states have internal predecessors, (12), 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) [2024-11-20 18:47:28,937 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 114 transitions. [2024-11-20 18:47:28,937 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-11-20 18:47:28,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:28,938 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:47:28,945 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-20 18:47:29,140 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:29,141 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:29,141 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:29,141 INFO L85 PathProgramCache]: Analyzing trace with hash 1895928885, now seen corresponding path program 1 times [2024-11-20 18:47:29,141 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:29,142 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1017928074] [2024-11-20 18:47:29,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:29,142 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:29,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:29,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:29,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:29,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:29,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:29,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:29,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:29,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:47:29,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:29,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:47:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:29,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:47:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:29,359 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 18:47:29,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:29,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1017928074] [2024-11-20 18:47:29,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1017928074] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:29,360 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:29,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:47:29,361 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [589303343] [2024-11-20 18:47:29,361 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:29,361 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:47:29,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:29,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:47:29,362 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:29,362 INFO L87 Difference]: Start difference. First operand 94 states and 114 transitions. Second operand has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 18:47:29,413 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:29,413 INFO L93 Difference]: Finished difference Result 94 states and 114 transitions. [2024-11-20 18:47:29,414 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:47:29,414 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 39 [2024-11-20 18:47:29,415 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:29,416 INFO L225 Difference]: With dead ends: 94 [2024-11-20 18:47:29,417 INFO L226 Difference]: Without dead ends: 92 [2024-11-20 18:47:29,418 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:29,419 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 39 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 30 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 30 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:29,421 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 77 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 30 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:47:29,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 92 states. [2024-11-20 18:47:29,435 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 92 to 92. [2024-11-20 18:47:29,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 92 states, 55 states have (on average 1.5454545454545454) internal successors, (85), 76 states have internal predecessors, (85), 13 states have call successors, (13), 2 states have call predecessors, (13), 2 states have return successors, (13), 13 states have call predecessors, (13), 13 states have call successors, (13) [2024-11-20 18:47:29,438 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 92 states to 92 states and 111 transitions. [2024-11-20 18:47:29,439 INFO L78 Accepts]: Start accepts. Automaton has 92 states and 111 transitions. Word has length 39 [2024-11-20 18:47:29,440 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:29,440 INFO L471 AbstractCegarLoop]: Abstraction has 92 states and 111 transitions. [2024-11-20 18:47:29,440 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 7.5) internal successors, (15), 3 states have internal predecessors, (15), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 18:47:29,440 INFO L276 IsEmpty]: Start isEmpty. Operand 92 states and 111 transitions. [2024-11-20 18:47:29,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-20 18:47:29,442 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:29,442 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:47:29,442 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-20 18:47:29,443 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:29,444 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:29,444 INFO L85 PathProgramCache]: Analyzing trace with hash -1355748025, now seen corresponding path program 1 times [2024-11-20 18:47:29,444 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:29,444 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2097984922] [2024-11-20 18:47:29,445 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:29,445 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:29,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:47:29,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [611131992] [2024-11-20 18:47:29,466 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:29,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:29,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:29,469 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) [2024-11-20 18:47:29,473 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-20 18:47:29,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:29,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 91 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 18:47:29,519 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:29,549 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 18:47:29,549 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:47:29,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:29,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2097984922] [2024-11-20 18:47:29,549 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:47:29,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [611131992] [2024-11-20 18:47:29,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [611131992] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:29,550 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:29,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:47:29,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1867428460] [2024-11-20 18:47:29,551 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:29,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:47:29,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:29,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:47:29,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:29,554 INFO L87 Difference]: Start difference. First operand 92 states and 111 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 18:47:29,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:29,646 INFO L93 Difference]: Finished difference Result 126 states and 154 transitions. [2024-11-20 18:47:29,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:47:29,647 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-20 18:47:29,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:29,648 INFO L225 Difference]: With dead ends: 126 [2024-11-20 18:47:29,650 INFO L226 Difference]: Without dead ends: 122 [2024-11-20 18:47:29,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:29,652 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 37 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 105 SdHoareTripleChecker+Invalid, 38 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:29,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 105 Invalid, 38 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:47:29,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 122 states. [2024-11-20 18:47:29,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 122 to 109. [2024-11-20 18:47:29,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.5285714285714285) internal successors, (107), 91 states have internal predecessors, (107), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 18:47:29,673 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 137 transitions. [2024-11-20 18:47:29,674 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 137 transitions. Word has length 40 [2024-11-20 18:47:29,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:29,674 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 137 transitions. [2024-11-20 18:47:29,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 18:47:29,674 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 137 transitions. [2024-11-20 18:47:29,675 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 41 [2024-11-20 18:47:29,675 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:29,675 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:47:29,685 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-20 18:47:29,882 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,SelfDestructingSolverStorable3 [2024-11-20 18:47:29,883 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:29,884 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:29,884 INFO L85 PathProgramCache]: Analyzing trace with hash -1355746647, now seen corresponding path program 1 times [2024-11-20 18:47:29,884 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:29,888 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1066893527] [2024-11-20 18:47:29,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:29,890 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:29,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:29,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:29,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:29,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,003 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:30,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,008 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:47:30,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,016 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:47:30,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:47:30,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,041 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 18:47:30,041 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:30,041 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1066893527] [2024-11-20 18:47:30,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1066893527] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:30,042 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:30,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:47:30,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1334146784] [2024-11-20 18:47:30,042 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:30,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:47:30,046 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:30,047 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:47:30,047 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:30,047 INFO L87 Difference]: Start difference. First operand 109 states and 137 transitions. Second operand has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 18:47:30,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:30,130 INFO L93 Difference]: Finished difference Result 116 states and 142 transitions. [2024-11-20 18:47:30,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:47:30,130 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 40 [2024-11-20 18:47:30,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:30,133 INFO L225 Difference]: With dead ends: 116 [2024-11-20 18:47:30,133 INFO L226 Difference]: Without dead ends: 115 [2024-11-20 18:47:30,133 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:30,136 INFO L432 NwaCegarLoop]: 70 mSDtfsCounter, 14 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 31 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 16 SdHoareTripleChecker+Valid, 126 SdHoareTripleChecker+Invalid, 31 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 31 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:30,137 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [16 Valid, 126 Invalid, 31 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:47:30,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-11-20 18:47:30,145 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 109. [2024-11-20 18:47:30,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 70 states have (on average 1.5142857142857142) internal successors, (106), 91 states have internal predecessors, (106), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 18:47:30,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 136 transitions. [2024-11-20 18:47:30,147 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 136 transitions. Word has length 40 [2024-11-20 18:47:30,147 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:30,148 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 136 transitions. [2024-11-20 18:47:30,148 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 8.0) internal successors, (16), 3 states have internal predecessors, (16), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 18:47:30,148 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 136 transitions. [2024-11-20 18:47:30,149 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-20 18:47:30,149 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:30,149 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:47:30,149 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-20 18:47:30,149 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:30,151 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:30,151 INFO L85 PathProgramCache]: Analyzing trace with hash -1498758743, now seen corresponding path program 1 times [2024-11-20 18:47:30,151 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:30,151 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1693702407] [2024-11-20 18:47:30,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:30,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:30,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,249 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:30,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:30,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:30,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,261 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:47:30,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:47:30,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,276 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:47:30,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,280 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 18:47:30,281 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:30,281 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1693702407] [2024-11-20 18:47:30,282 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1693702407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:30,282 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:30,282 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 18:47:30,282 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [212365391] [2024-11-20 18:47:30,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:30,282 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:47:30,282 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:30,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:47:30,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:47:30,283 INFO L87 Difference]: Start difference. First operand 109 states and 136 transitions. Second operand has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 18:47:30,475 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:30,475 INFO L93 Difference]: Finished difference Result 124 states and 150 transitions. [2024-11-20 18:47:30,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 18:47:30,476 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 42 [2024-11-20 18:47:30,476 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:30,477 INFO L225 Difference]: With dead ends: 124 [2024-11-20 18:47:30,477 INFO L226 Difference]: Without dead ends: 123 [2024-11-20 18:47:30,477 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:47:30,478 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 85 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 83 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 87 SdHoareTripleChecker+Valid, 108 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 83 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:30,478 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [87 Valid, 108 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 83 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 18:47:30,479 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-11-20 18:47:30,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 113. [2024-11-20 18:47:30,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 113 states, 74 states have (on average 1.4864864864864864) internal successors, (110), 95 states have internal predecessors, (110), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 18:47:30,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 113 states to 113 states and 140 transitions. [2024-11-20 18:47:30,493 INFO L78 Accepts]: Start accepts. Automaton has 113 states and 140 transitions. Word has length 42 [2024-11-20 18:47:30,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:30,493 INFO L471 AbstractCegarLoop]: Abstraction has 113 states and 140 transitions. [2024-11-20 18:47:30,493 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.0) internal successors, (18), 4 states have internal predecessors, (18), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 18:47:30,494 INFO L276 IsEmpty]: Start isEmpty. Operand 113 states and 140 transitions. [2024-11-20 18:47:30,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2024-11-20 18:47:30,497 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:30,497 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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] [2024-11-20 18:47:30,498 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-20 18:47:30,498 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:30,498 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:30,499 INFO L85 PathProgramCache]: Analyzing trace with hash 783119308, now seen corresponding path program 1 times [2024-11-20 18:47:30,499 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:30,499 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334355221] [2024-11-20 18:47:30,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:30,499 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:30,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:47:30,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [50540318] [2024-11-20 18:47:30,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:30,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:30,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:30,525 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) [2024-11-20 18:47:30,527 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-20 18:47:30,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:30,562 INFO L255 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 18:47:30,564 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:30,663 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-11-20 18:47:30,663 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:47:30,663 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:30,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334355221] [2024-11-20 18:47:30,663 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:47:30,663 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [50540318] [2024-11-20 18:47:30,663 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [50540318] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:30,664 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:30,664 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:47:30,664 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [40328093] [2024-11-20 18:47:30,664 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:30,664 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:47:30,664 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:30,665 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:47:30,665 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:30,665 INFO L87 Difference]: Start difference. First operand 113 states and 140 transitions. Second operand has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 18:47:30,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:30,763 INFO L93 Difference]: Finished difference Result 124 states and 147 transitions. [2024-11-20 18:47:30,763 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:47:30,763 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 43 [2024-11-20 18:47:30,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:30,764 INFO L225 Difference]: With dead ends: 124 [2024-11-20 18:47:30,764 INFO L226 Difference]: Without dead ends: 121 [2024-11-20 18:47:30,765 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 42 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:30,765 INFO L432 NwaCegarLoop]: 63 mSDtfsCounter, 30 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:30,765 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 98 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:47:30,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 121 states. [2024-11-20 18:47:30,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 121 to 114. [2024-11-20 18:47:30,789 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 114 states, 75 states have (on average 1.4533333333333334) internal successors, (109), 96 states have internal predecessors, (109), 15 states have call successors, (15), 2 states have call predecessors, (15), 2 states have return successors, (15), 15 states have call predecessors, (15), 15 states have call successors, (15) [2024-11-20 18:47:30,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 114 states to 114 states and 139 transitions. [2024-11-20 18:47:30,790 INFO L78 Accepts]: Start accepts. Automaton has 114 states and 139 transitions. Word has length 43 [2024-11-20 18:47:30,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:30,791 INFO L471 AbstractCegarLoop]: Abstraction has 114 states and 139 transitions. [2024-11-20 18:47:30,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 9.5) internal successors, (19), 3 states have internal predecessors, (19), 2 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-20 18:47:30,791 INFO L276 IsEmpty]: Start isEmpty. Operand 114 states and 139 transitions. [2024-11-20 18:47:30,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-20 18:47:30,792 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:30,792 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:47:30,800 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-20 18:47:30,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:30,993 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:30,993 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:30,993 INFO L85 PathProgramCache]: Analyzing trace with hash 1636648139, now seen corresponding path program 1 times [2024-11-20 18:47:30,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:30,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1137834817] [2024-11-20 18:47:30,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:30,994 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:31,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:47:31,008 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1009534472] [2024-11-20 18:47:31,008 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:31,009 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:31,009 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:31,011 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-20 18:47:31,013 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-20 18:47:31,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:31,060 INFO L255 TraceCheckSpWp]: Trace formula consists of 117 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 18:47:31,062 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:31,233 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 7 proven. 3 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-20 18:47:31,233 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:47:31,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:31,379 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1137834817] [2024-11-20 18:47:31,379 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:47:31,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1009534472] [2024-11-20 18:47:31,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1009534472] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:47:31,381 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:47:31,381 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-20 18:47:31,381 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1344151363] [2024-11-20 18:47:31,381 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:47:31,381 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 18:47:31,382 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:31,382 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 18:47:31,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 18:47:31,382 INFO L87 Difference]: Start difference. First operand 114 states and 139 transitions. Second operand has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-20 18:47:31,560 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:31,560 INFO L93 Difference]: Finished difference Result 128 states and 157 transitions. [2024-11-20 18:47:31,561 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 18:47:31,561 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 54 [2024-11-20 18:47:31,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:31,562 INFO L225 Difference]: With dead ends: 128 [2024-11-20 18:47:31,562 INFO L226 Difference]: Without dead ends: 120 [2024-11-20 18:47:31,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 18:47:31,563 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 48 mSDsluCounter, 194 mSDsCounter, 0 mSdLazyCounter, 191 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 53 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:31,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [53 Valid, 254 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 191 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 18:47:31,563 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-11-20 18:47:31,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-11-20 18:47:31,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 83 states have (on average 1.3493975903614457) internal successors, (112), 100 states have internal predecessors, (112), 17 states have call successors, (17), 2 states have call predecessors, (17), 2 states have return successors, (17), 17 states have call predecessors, (17), 17 states have call successors, (17) [2024-11-20 18:47:31,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 146 transitions. [2024-11-20 18:47:31,577 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 146 transitions. Word has length 54 [2024-11-20 18:47:31,577 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:31,577 INFO L471 AbstractCegarLoop]: Abstraction has 120 states and 146 transitions. [2024-11-20 18:47:31,577 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.8333333333333335) internal successors, (23), 6 states have internal predecessors, (23), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-20 18:47:31,577 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 146 transitions. [2024-11-20 18:47:31,578 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-11-20 18:47:31,578 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:31,578 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 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] [2024-11-20 18:47:31,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-20 18:47:31,782 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:31,783 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:31,783 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:31,783 INFO L85 PathProgramCache]: Analyzing trace with hash -803515191, now seen corresponding path program 1 times [2024-11-20 18:47:31,783 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:31,783 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [547459785] [2024-11-20 18:47:31,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:31,783 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:31,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:47:31,804 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [692339389] [2024-11-20 18:47:31,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:31,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:31,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:31,811 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) [2024-11-20 18:47:31,812 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-20 18:47:31,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:31,857 INFO L255 TraceCheckSpWp]: Trace formula consists of 118 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 18:47:31,859 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:31,990 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 3 proven. 8 refuted. 0 times theorem prover too weak. 46 trivial. 0 not checked. [2024-11-20 18:47:31,990 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:47:32,109 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:32,109 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [547459785] [2024-11-20 18:47:32,109 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:47:32,110 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [692339389] [2024-11-20 18:47:32,110 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [692339389] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:47:32,110 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:47:32,110 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2024-11-20 18:47:32,110 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1573844510] [2024-11-20 18:47:32,110 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:47:32,111 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-20 18:47:32,111 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:32,111 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-20 18:47:32,112 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 18:47:32,112 INFO L87 Difference]: Start difference. First operand 120 states and 146 transitions. Second operand has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-20 18:47:32,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:32,285 INFO L93 Difference]: Finished difference Result 192 states and 245 transitions. [2024-11-20 18:47:32,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-20 18:47:32,286 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) Word has length 55 [2024-11-20 18:47:32,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:32,288 INFO L225 Difference]: With dead ends: 192 [2024-11-20 18:47:32,288 INFO L226 Difference]: Without dead ends: 188 [2024-11-20 18:47:32,288 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-11-20 18:47:32,289 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 123 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 166 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 198 SdHoareTripleChecker+Invalid, 175 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 166 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:32,289 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 198 Invalid, 175 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 166 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:47:32,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 188 states. [2024-11-20 18:47:32,305 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 188 to 179. [2024-11-20 18:47:32,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 179 states, 133 states have (on average 1.3533834586466165) internal successors, (180), 150 states have internal predecessors, (180), 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) [2024-11-20 18:47:32,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 232 transitions. [2024-11-20 18:47:32,307 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 232 transitions. Word has length 55 [2024-11-20 18:47:32,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:32,307 INFO L471 AbstractCegarLoop]: Abstraction has 179 states and 232 transitions. [2024-11-20 18:47:32,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 4.0) internal successors, (24), 6 states have internal predecessors, (24), 4 states have call successors, (8), 1 states have call predecessors, (8), 2 states have return successors, (8), 4 states have call predecessors, (8), 4 states have call successors, (8) [2024-11-20 18:47:32,308 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 232 transitions. [2024-11-20 18:47:32,308 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-11-20 18:47:32,308 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:32,309 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 3, 3, 3, 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] [2024-11-20 18:47:32,318 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-20 18:47:32,510 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:32,511 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:32,511 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:32,511 INFO L85 PathProgramCache]: Analyzing trace with hash 2102091629, now seen corresponding path program 1 times [2024-11-20 18:47:32,512 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:32,512 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1175589956] [2024-11-20 18:47:32,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:32,512 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:32,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:32,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:32,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,592 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,596 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:47:32,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:47:32,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:47:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,606 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 18:47:32,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-20 18:47:32,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,613 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-20 18:47:32,613 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:32,614 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1175589956] [2024-11-20 18:47:32,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1175589956] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:32,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:32,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-20 18:47:32,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [39619435] [2024-11-20 18:47:32,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:32,615 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:47:32,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:32,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:47:32,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-20 18:47:32,615 INFO L87 Difference]: Start difference. First operand 179 states and 232 transitions. Second operand has 4 states, 3 states have (on average 8.333333333333334) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-20 18:47:32,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:32,770 INFO L93 Difference]: Finished difference Result 188 states and 241 transitions. [2024-11-20 18:47:32,770 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 18:47:32,771 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 59 [2024-11-20 18:47:32,771 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:32,772 INFO L225 Difference]: With dead ends: 188 [2024-11-20 18:47:32,772 INFO L226 Difference]: Without dead ends: 173 [2024-11-20 18:47:32,773 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:47:32,773 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 39 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 69 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 39 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 69 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:32,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [39 Valid, 139 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 69 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:47:32,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-20 18:47:32,791 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 146. [2024-11-20 18:47:32,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 146 states, 106 states have (on average 1.4056603773584906) internal successors, (149), 123 states have internal predecessors, (149), 20 states have call successors, (20), 2 states have call predecessors, (20), 2 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-20 18:47:32,793 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 189 transitions. [2024-11-20 18:47:32,793 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 189 transitions. Word has length 59 [2024-11-20 18:47:32,793 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:32,793 INFO L471 AbstractCegarLoop]: Abstraction has 146 states and 189 transitions. [2024-11-20 18:47:32,794 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), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-20 18:47:32,794 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 189 transitions. [2024-11-20 18:47:32,794 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 64 [2024-11-20 18:47:32,795 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:32,795 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 3, 3, 3, 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] [2024-11-20 18:47:32,795 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-20 18:47:32,795 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:32,796 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:32,796 INFO L85 PathProgramCache]: Analyzing trace with hash -1900976566, now seen corresponding path program 1 times [2024-11-20 18:47:32,796 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:32,796 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278991733] [2024-11-20 18:47:32,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:32,796 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:32,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:32,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,876 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,878 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:32,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,881 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:47:32,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,884 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:47:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:47:32,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,894 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 18:47:32,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 18:47:32,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,905 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 18:47:32,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,909 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-20 18:47:32,909 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:32,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278991733] [2024-11-20 18:47:32,910 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278991733] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:47:32,910 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452254088] [2024-11-20 18:47:32,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:32,910 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:32,910 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:32,913 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) [2024-11-20 18:47:32,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-20 18:47:32,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:32,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 130 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-20 18:47:32,957 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:32,997 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-20 18:47:32,997 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:47:33,071 INFO L134 CoverageAnalysis]: Checked inductivity of 81 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-11-20 18:47:33,071 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452254088] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:47:33,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 18:47:33,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2024-11-20 18:47:33,072 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718188698] [2024-11-20 18:47:33,072 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 18:47:33,072 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 18:47:33,075 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:33,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 18:47:33,076 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 18:47:33,076 INFO L87 Difference]: Start difference. First operand 146 states and 189 transitions. Second operand has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-20 18:47:33,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:33,229 INFO L93 Difference]: Finished difference Result 256 states and 328 transitions. [2024-11-20 18:47:33,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 18:47:33,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) Word has length 63 [2024-11-20 18:47:33,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:33,232 INFO L225 Difference]: With dead ends: 256 [2024-11-20 18:47:33,232 INFO L226 Difference]: Without dead ends: 254 [2024-11-20 18:47:33,233 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-20 18:47:33,234 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 101 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 107 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 109 SdHoareTripleChecker+Valid, 233 SdHoareTripleChecker+Invalid, 115 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 107 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:33,234 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [109 Valid, 233 Invalid, 115 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 107 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:47:33,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2024-11-20 18:47:33,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 204. [2024-11-20 18:47:33,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 154 states have (on average 1.4025974025974026) internal successors, (216), 171 states have internal predecessors, (216), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 18:47:33,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 276 transitions. [2024-11-20 18:47:33,260 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 276 transitions. Word has length 63 [2024-11-20 18:47:33,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:33,261 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 276 transitions. [2024-11-20 18:47:33,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 7.8) internal successors, (39), 6 states have internal predecessors, (39), 5 states have call successors, (15), 1 states have call predecessors, (15), 1 states have return successors, (15), 5 states have call predecessors, (15), 5 states have call successors, (15) [2024-11-20 18:47:33,261 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 276 transitions. [2024-11-20 18:47:33,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-20 18:47:33,263 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:33,263 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:47:33,271 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-20 18:47:33,467 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:33,468 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:33,468 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:33,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1677921032, now seen corresponding path program 2 times [2024-11-20 18:47:33,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:33,468 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401944502] [2024-11-20 18:47:33,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:33,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:33,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:47:33,485 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1858972980] [2024-11-20 18:47:33,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 18:47:33,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:33,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:33,488 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) [2024-11-20 18:47:33,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-20 18:47:33,535 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 18:47:33,535 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 18:47:33,536 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-20 18:47:33,538 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:33,809 INFO L134 CoverageAnalysis]: Checked inductivity of 145 backedges. 0 proven. 27 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-20 18:47:33,809 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:47:33,976 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:33,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401944502] [2024-11-20 18:47:33,976 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:47:33,976 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858972980] [2024-11-20 18:47:33,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858972980] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:47:33,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:47:33,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-11-20 18:47:33,977 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1018740992] [2024-11-20 18:47:33,977 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:47:33,977 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-20 18:47:33,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:33,978 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-20 18:47:33,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2024-11-20 18:47:33,978 INFO L87 Difference]: Start difference. First operand 204 states and 276 transitions. Second operand has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-20 18:47:34,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:34,525 INFO L93 Difference]: Finished difference Result 274 states and 367 transitions. [2024-11-20 18:47:34,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 18:47:34,525 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) Word has length 78 [2024-11-20 18:47:34,526 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:34,527 INFO L225 Difference]: With dead ends: 274 [2024-11-20 18:47:34,527 INFO L226 Difference]: Without dead ends: 270 [2024-11-20 18:47:34,528 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 102 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=96, Invalid=246, Unknown=0, NotChecked=0, Total=342 [2024-11-20 18:47:34,528 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 143 mSDsluCounter, 333 mSDsCounter, 0 mSdLazyCounter, 583 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 607 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 583 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:34,529 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 422 Invalid, 607 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 583 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 18:47:34,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-20 18:47:34,547 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 204. [2024-11-20 18:47:34,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 204 states, 154 states have (on average 1.3896103896103895) internal successors, (214), 171 states have internal predecessors, (214), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 18:47:34,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204 states to 204 states and 274 transitions. [2024-11-20 18:47:34,549 INFO L78 Accepts]: Start accepts. Automaton has 204 states and 274 transitions. Word has length 78 [2024-11-20 18:47:34,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:34,550 INFO L471 AbstractCegarLoop]: Abstraction has 204 states and 274 transitions. [2024-11-20 18:47:34,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 3.5555555555555554) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-20 18:47:34,550 INFO L276 IsEmpty]: Start isEmpty. Operand 204 states and 274 transitions. [2024-11-20 18:47:34,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2024-11-20 18:47:34,551 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:34,551 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-20 18:47:34,559 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-20 18:47:34,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:34,756 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:34,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:34,756 INFO L85 PathProgramCache]: Analyzing trace with hash 343448633, now seen corresponding path program 1 times [2024-11-20 18:47:34,756 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:34,756 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973495459] [2024-11-20 18:47:34,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:34,757 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:34,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:34,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:34,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:47:34,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:47:34,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:47:34,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 18:47:34,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 18:47:34,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 18:47:34,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 18:47:34,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,830 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 18:47:34,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:34,832 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-20 18:47:34,832 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:34,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973495459] [2024-11-20 18:47:34,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973495459] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:34,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:34,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-20 18:47:34,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1708119967] [2024-11-20 18:47:34,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:34,833 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-20 18:47:34,833 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:34,834 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-20 18:47:34,834 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-20 18:47:34,835 INFO L87 Difference]: Start difference. First operand 204 states and 274 transitions. Second operand has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-20 18:47:34,902 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:34,902 INFO L93 Difference]: Finished difference Result 204 states and 274 transitions. [2024-11-20 18:47:34,902 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-20 18:47:34,903 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 85 [2024-11-20 18:47:34,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:34,904 INFO L225 Difference]: With dead ends: 204 [2024-11-20 18:47:34,905 INFO L226 Difference]: Without dead ends: 203 [2024-11-20 18:47:34,905 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 [2024-11-20 18:47:34,906 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 2 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:34,906 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2 Valid, 116 Invalid, 29 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-20 18:47:34,907 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-20 18:47:34,924 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-20 18:47:34,924 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 154 states have (on average 1.37012987012987) internal successors, (211), 170 states have internal predecessors, (211), 30 states have call successors, (30), 2 states have call predecessors, (30), 2 states have return successors, (30), 30 states have call predecessors, (30), 30 states have call successors, (30) [2024-11-20 18:47:34,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 271 transitions. [2024-11-20 18:47:34,926 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 271 transitions. Word has length 85 [2024-11-20 18:47:34,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:34,926 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 271 transitions. [2024-11-20 18:47:34,926 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 16.5) internal successors, (33), 3 states have internal predecessors, (33), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-20 18:47:34,927 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 271 transitions. [2024-11-20 18:47:34,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 87 [2024-11-20 18:47:34,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:34,928 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-20 18:47:34,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-20 18:47:34,928 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:34,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:34,928 INFO L85 PathProgramCache]: Analyzing trace with hash 2056973142, now seen corresponding path program 1 times [2024-11-20 18:47:34,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:34,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [662520392] [2024-11-20 18:47:34,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:34,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:34,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:35,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:35,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,109 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:35,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:47:35,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:47:35,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:47:35,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 18:47:35,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 18:47:35,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 18:47:35,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 18:47:35,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 18:47:35,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,139 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-20 18:47:35,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:35,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [662520392] [2024-11-20 18:47:35,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [662520392] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:35,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:35,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-20 18:47:35,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [121066067] [2024-11-20 18:47:35,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:35,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 18:47:35,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:35,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 18:47:35,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-20 18:47:35,141 INFO L87 Difference]: Start difference. First operand 203 states and 271 transitions. Second operand has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-20 18:47:35,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:35,431 INFO L93 Difference]: Finished difference Result 364 states and 506 transitions. [2024-11-20 18:47:35,431 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 18:47:35,431 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) Word has length 86 [2024-11-20 18:47:35,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:35,433 INFO L225 Difference]: With dead ends: 364 [2024-11-20 18:47:35,433 INFO L226 Difference]: Without dead ends: 363 [2024-11-20 18:47:35,434 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-11-20 18:47:35,434 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 94 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 174 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 264 SdHoareTripleChecker+Invalid, 184 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:35,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 264 Invalid, 184 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 174 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 18:47:35,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-20 18:47:35,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 305. [2024-11-20 18:47:35,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 305 states, 244 states have (on average 1.4344262295081966) internal successors, (350), 260 states have internal predecessors, (350), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-20 18:47:35,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 305 states to 305 states and 434 transitions. [2024-11-20 18:47:35,464 INFO L78 Accepts]: Start accepts. Automaton has 305 states and 434 transitions. Word has length 86 [2024-11-20 18:47:35,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:35,464 INFO L471 AbstractCegarLoop]: Abstraction has 305 states and 434 transitions. [2024-11-20 18:47:35,464 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 6.8) internal successors, (34), 6 states have internal predecessors, (34), 3 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 3 states have call predecessors, (8), 3 states have call successors, (8) [2024-11-20 18:47:35,464 INFO L276 IsEmpty]: Start isEmpty. Operand 305 states and 434 transitions. [2024-11-20 18:47:35,465 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 88 [2024-11-20 18:47:35,465 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:35,465 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-20 18:47:35,466 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-20 18:47:35,466 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr18ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:35,466 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:35,466 INFO L85 PathProgramCache]: Analyzing trace with hash -658341925, now seen corresponding path program 1 times [2024-11-20 18:47:35,466 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:35,466 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896076996] [2024-11-20 18:47:35,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:35,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:35,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,643 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:35,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,645 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:35,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:35,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:47:35,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:47:35,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:47:35,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 18:47:35,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,685 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 18:47:35,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 18:47:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 18:47:35,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,696 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 18:47:35,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,700 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-20 18:47:35,700 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:35,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896076996] [2024-11-20 18:47:35,700 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896076996] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:47:35,700 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1256041859] [2024-11-20 18:47:35,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:35,701 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:35,701 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:35,703 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) [2024-11-20 18:47:35,704 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-20 18:47:35,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:35,751 INFO L255 TraceCheckSpWp]: Trace formula consists of 168 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 18:47:35,753 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:35,904 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-20 18:47:35,904 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:47:35,905 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1256041859] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:35,905 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:47:35,905 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-20 18:47:35,905 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [715238813] [2024-11-20 18:47:35,905 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:35,906 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 18:47:35,906 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:35,906 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 18:47:35,906 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-20 18:47:35,907 INFO L87 Difference]: Start difference. First operand 305 states and 434 transitions. Second operand has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-20 18:47:36,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:36,086 INFO L93 Difference]: Finished difference Result 364 states and 505 transitions. [2024-11-20 18:47:36,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 18:47:36,087 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 87 [2024-11-20 18:47:36,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:36,089 INFO L225 Difference]: With dead ends: 364 [2024-11-20 18:47:36,089 INFO L226 Difference]: Without dead ends: 363 [2024-11-20 18:47:36,089 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 106 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=29, Unknown=0, NotChecked=0, Total=56 [2024-11-20 18:47:36,089 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 48 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 79 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 112 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 79 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:36,090 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 112 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 79 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:47:36,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 363 states. [2024-11-20 18:47:36,124 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 363 to 314. [2024-11-20 18:47:36,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 253 states have (on average 1.4189723320158103) internal successors, (359), 269 states have internal predecessors, (359), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-20 18:47:36,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 443 transitions. [2024-11-20 18:47:36,126 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 443 transitions. Word has length 87 [2024-11-20 18:47:36,126 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:36,126 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 443 transitions. [2024-11-20 18:47:36,127 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 8.75) internal successors, (35), 5 states have internal predecessors, (35), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-20 18:47:36,127 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 443 transitions. [2024-11-20 18:47:36,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 89 [2024-11-20 18:47:36,127 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:36,128 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-20 18:47:36,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-11-20 18:47:36,328 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,SelfDestructingSolverStorable14 [2024-11-20 18:47:36,329 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr19ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:36,329 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:36,329 INFO L85 PathProgramCache]: Analyzing trace with hash 1066236920, now seen corresponding path program 1 times [2024-11-20 18:47:36,329 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:36,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [416482252] [2024-11-20 18:47:36,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:36,330 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:36,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:36,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,506 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:36,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:47:36,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:47:36,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:47:36,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 18:47:36,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 18:47:36,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 18:47:36,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 18:47:36,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 18:47:36,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,542 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-20 18:47:36,542 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:36,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [416482252] [2024-11-20 18:47:36,542 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [416482252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:47:36,542 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [192857717] [2024-11-20 18:47:36,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:36,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:36,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:36,546 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) [2024-11-20 18:47:36,548 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-20 18:47:36,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:36,601 INFO L255 TraceCheckSpWp]: Trace formula consists of 169 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-20 18:47:36,603 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:36,714 INFO L134 CoverageAnalysis]: Checked inductivity of 131 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-20 18:47:36,715 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-20 18:47:36,715 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [192857717] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:36,715 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:47:36,715 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-20 18:47:36,715 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581313662] [2024-11-20 18:47:36,716 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:36,716 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-20 18:47:36,716 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:36,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-20 18:47:36,717 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 18:47:36,717 INFO L87 Difference]: Start difference. First operand 314 states and 443 transitions. Second operand has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-20 18:47:36,836 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:36,836 INFO L93 Difference]: Finished difference Result 321 states and 449 transitions. [2024-11-20 18:47:36,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-20 18:47:36,837 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 88 [2024-11-20 18:47:36,837 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:36,839 INFO L225 Difference]: With dead ends: 321 [2024-11-20 18:47:36,839 INFO L226 Difference]: Without dead ends: 319 [2024-11-20 18:47:36,839 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 109 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-20 18:47:36,840 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 25 mSDsluCounter, 68 mSDsCounter, 0 mSdLazyCounter, 68 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 71 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 68 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:36,840 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 124 Invalid, 71 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 68 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:47:36,841 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-11-20 18:47:36,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 317. [2024-11-20 18:47:36,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 256 states have (on average 1.40625) internal successors, (360), 272 states have internal predecessors, (360), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 42 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-20 18:47:36,871 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 444 transitions. [2024-11-20 18:47:36,872 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 444 transitions. Word has length 88 [2024-11-20 18:47:36,872 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:36,872 INFO L471 AbstractCegarLoop]: Abstraction has 317 states and 444 transitions. [2024-11-20 18:47:36,872 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 12.0) internal successors, (36), 4 states have internal predecessors, (36), 2 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-20 18:47:36,873 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 444 transitions. [2024-11-20 18:47:36,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-11-20 18:47:36,875 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:36,876 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-20 18:47:36,883 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-20 18:47:37,079 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,SelfDestructingSolverStorable15 [2024-11-20 18:47:37,080 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:37,080 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:37,080 INFO L85 PathProgramCache]: Analyzing trace with hash -1843501158, now seen corresponding path program 1 times [2024-11-20 18:47:37,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:37,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1426323081] [2024-11-20 18:47:37,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:37,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:37,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:47:37,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1174367991] [2024-11-20 18:47:37,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:37,101 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:37,102 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:37,104 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) [2024-11-20 18:47:37,106 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-20 18:47:37,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:37,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 173 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-20 18:47:37,162 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:37,714 INFO L134 CoverageAnalysis]: Checked inductivity of 133 backedges. 3 proven. 12 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-20 18:47:37,714 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:47:38,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:38,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1426323081] [2024-11-20 18:47:38,137 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:47:38,137 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1174367991] [2024-11-20 18:47:38,137 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1174367991] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:47:38,137 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:47:38,137 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-20 18:47:38,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3267716] [2024-11-20 18:47:38,137 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:47:38,138 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 18:47:38,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:38,139 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 18:47:38,139 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=155, Unknown=0, NotChecked=0, Total=210 [2024-11-20 18:47:38,139 INFO L87 Difference]: Start difference. First operand 317 states and 444 transitions. Second operand has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-20 18:47:38,692 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:38,692 INFO L93 Difference]: Finished difference Result 394 states and 547 transitions. [2024-11-20 18:47:38,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 18:47:38,693 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 90 [2024-11-20 18:47:38,693 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:38,695 INFO L225 Difference]: With dead ends: 394 [2024-11-20 18:47:38,695 INFO L226 Difference]: Without dead ends: 393 [2024-11-20 18:47:38,695 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-11-20 18:47:38,696 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 128 mSDsluCounter, 224 mSDsCounter, 0 mSdLazyCounter, 625 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 137 SdHoareTripleChecker+Valid, 274 SdHoareTripleChecker+Invalid, 634 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 625 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:38,696 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [137 Valid, 274 Invalid, 634 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 625 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 18:47:38,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 393 states. [2024-11-20 18:47:38,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 393 to 366. [2024-11-20 18:47:38,728 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 366 states, 299 states have (on average 1.3812709030100334) internal successors, (413), 315 states have internal predecessors, (413), 48 states have call successors, (48), 2 states have call predecessors, (48), 2 states have return successors, (48), 48 states have call predecessors, (48), 48 states have call successors, (48) [2024-11-20 18:47:38,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 366 states to 366 states and 509 transitions. [2024-11-20 18:47:38,730 INFO L78 Accepts]: Start accepts. Automaton has 366 states and 509 transitions. Word has length 90 [2024-11-20 18:47:38,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:38,731 INFO L471 AbstractCegarLoop]: Abstraction has 366 states and 509 transitions. [2024-11-20 18:47:38,731 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.0) internal successors, (44), 11 states have internal predecessors, (44), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-20 18:47:38,731 INFO L276 IsEmpty]: Start isEmpty. Operand 366 states and 509 transitions. [2024-11-20 18:47:38,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2024-11-20 18:47:38,732 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:38,732 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-20 18:47:38,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-20 18:47:38,936 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-20 18:47:38,937 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:38,937 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:38,937 INFO L85 PathProgramCache]: Analyzing trace with hash -1313960969, now seen corresponding path program 1 times [2024-11-20 18:47:38,937 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:38,937 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1760024090] [2024-11-20 18:47:38,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:38,937 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:38,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:47:38,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299351371] [2024-11-20 18:47:38,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:38,954 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:38,954 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:38,956 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) [2024-11-20 18:47:38,958 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-20 18:47:39,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:39,005 INFO L255 TraceCheckSpWp]: Trace formula consists of 174 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-20 18:47:39,006 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:39,557 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 3 proven. 13 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-20 18:47:39,557 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:47:39,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:39,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1760024090] [2024-11-20 18:47:39,947 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:47:39,947 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299351371] [2024-11-20 18:47:39,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299351371] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:47:39,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:47:39,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-20 18:47:39,948 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1205183430] [2024-11-20 18:47:39,948 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:47:39,948 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 18:47:39,948 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:39,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 18:47:39,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-11-20 18:47:39,949 INFO L87 Difference]: Start difference. First operand 366 states and 509 transitions. Second operand has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-20 18:47:40,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:40,368 INFO L93 Difference]: Finished difference Result 429 states and 596 transitions. [2024-11-20 18:47:40,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-11-20 18:47:40,368 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) Word has length 91 [2024-11-20 18:47:40,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:40,371 INFO L225 Difference]: With dead ends: 429 [2024-11-20 18:47:40,371 INFO L226 Difference]: Without dead ends: 428 [2024-11-20 18:47:40,371 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 105 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2024-11-20 18:47:40,372 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 122 mSDsluCounter, 158 mSDsCounter, 0 mSdLazyCounter, 514 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 520 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 514 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:40,372 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 205 Invalid, 520 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 514 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 18:47:40,373 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 428 states. [2024-11-20 18:47:40,407 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 428 to 415. [2024-11-20 18:47:40,407 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 415 states, 342 states have (on average 1.3567251461988303) internal successors, (464), 358 states have internal predecessors, (464), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 18:47:40,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 572 transitions. [2024-11-20 18:47:40,409 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 572 transitions. Word has length 91 [2024-11-20 18:47:40,410 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:40,410 INFO L471 AbstractCegarLoop]: Abstraction has 415 states and 572 transitions. [2024-11-20 18:47:40,410 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.090909090909091) internal successors, (45), 11 states have internal predecessors, (45), 5 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 5 states have call predecessors, (11), 5 states have call successors, (11) [2024-11-20 18:47:40,410 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 572 transitions. [2024-11-20 18:47:40,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2024-11-20 18:47:40,411 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:40,411 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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] [2024-11-20 18:47:40,419 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-20 18:47:40,615 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-11-20 18:47:40,616 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr8ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:40,616 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:40,616 INFO L85 PathProgramCache]: Analyzing trace with hash -2078084292, now seen corresponding path program 1 times [2024-11-20 18:47:40,616 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:40,616 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1047759287] [2024-11-20 18:47:40,616 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:40,616 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:40,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,688 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:47:40,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:47:40,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,692 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:47:40,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:47:40,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:47:40,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:47:40,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 18:47:40,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 18:47:40,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 18:47:40,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 18:47:40,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,705 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 18:47:40,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:40,707 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 131 trivial. 0 not checked. [2024-11-20 18:47:40,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:40,707 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1047759287] [2024-11-20 18:47:40,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1047759287] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:47:40,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:47:40,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 18:47:40,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [778819395] [2024-11-20 18:47:40,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:47:40,709 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 18:47:40,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:40,710 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 18:47:40,710 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:47:40,710 INFO L87 Difference]: Start difference. First operand 415 states and 572 transitions. Second operand has 5 states, 4 states have (on average 10.0) internal successors, (40), 5 states have internal predecessors, (40), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-20 18:47:40,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:40,895 INFO L93 Difference]: Finished difference Result 415 states and 572 transitions. [2024-11-20 18:47:40,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-20 18:47:40,895 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), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) Word has length 92 [2024-11-20 18:47:40,896 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:40,899 INFO L225 Difference]: With dead ends: 415 [2024-11-20 18:47:40,899 INFO L226 Difference]: Without dead ends: 414 [2024-11-20 18:47:40,899 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-20 18:47:40,900 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 71 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 89 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 71 SdHoareTripleChecker+Valid, 116 SdHoareTripleChecker+Invalid, 102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 89 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:40,900 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [71 Valid, 116 Invalid, 102 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 89 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:47:40,900 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-11-20 18:47:40,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 402. [2024-11-20 18:47:40,937 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 402 states, 330 states have (on average 1.3272727272727274) internal successors, (438), 345 states have internal predecessors, (438), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 18:47:40,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 402 states to 402 states and 546 transitions. [2024-11-20 18:47:40,939 INFO L78 Accepts]: Start accepts. Automaton has 402 states and 546 transitions. Word has length 92 [2024-11-20 18:47:40,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:40,940 INFO L471 AbstractCegarLoop]: Abstraction has 402 states and 546 transitions. [2024-11-20 18:47:40,940 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), 1 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 1 states have call predecessors, (8), 1 states have call successors, (8) [2024-11-20 18:47:40,940 INFO L276 IsEmpty]: Start isEmpty. Operand 402 states and 546 transitions. [2024-11-20 18:47:40,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-11-20 18:47:40,941 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:40,941 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:47:40,941 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-20 18:47:40,941 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:40,941 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:40,942 INFO L85 PathProgramCache]: Analyzing trace with hash 3896473, now seen corresponding path program 1 times [2024-11-20 18:47:40,942 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:40,942 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27313057] [2024-11-20 18:47:40,942 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:40,942 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:40,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:47:40,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859624043] [2024-11-20 18:47:40,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:40,959 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:40,959 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:40,961 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) [2024-11-20 18:47:40,962 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-20 18:47:41,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:47:41,009 INFO L255 TraceCheckSpWp]: Trace formula consists of 176 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-11-20 18:47:41,011 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 118 trivial. 0 not checked. [2024-11-20 18:47:41,768 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:47:44,533 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2024-11-20 18:47:44,533 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:44,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27313057] [2024-11-20 18:47:44,533 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:47:44,533 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859624043] [2024-11-20 18:47:44,534 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859624043] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:47:44,534 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 18:47:44,534 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2024-11-20 18:47:44,534 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [224674537] [2024-11-20 18:47:44,534 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 18:47:44,535 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2024-11-20 18:47:44,535 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:44,536 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2024-11-20 18:47:44,536 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=384, Unknown=0, NotChecked=0, Total=506 [2024-11-20 18:47:44,536 INFO L87 Difference]: Start difference. First operand 402 states and 546 transitions. Second operand has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-20 18:47:49,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:47:49,918 INFO L93 Difference]: Finished difference Result 564 states and 764 transitions. [2024-11-20 18:47:49,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-20 18:47:49,919 INFO L78 Accepts]: Start accepts. Automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) Word has length 93 [2024-11-20 18:47:49,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:47:49,921 INFO L225 Difference]: With dead ends: 564 [2024-11-20 18:47:49,921 INFO L226 Difference]: Without dead ends: 444 [2024-11-20 18:47:49,924 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 163 SyntacticMatches, 0 SemanticMatches, 47 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 540 ImplicationChecksByTransitivity, 3.6s TimeCoverageRelationStatistics Valid=566, Invalid=1786, Unknown=0, NotChecked=0, Total=2352 [2024-11-20 18:47:49,925 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 385 mSDsluCounter, 269 mSDsCounter, 0 mSdLazyCounter, 1017 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 385 SdHoareTripleChecker+Valid, 307 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 1017 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2024-11-20 18:47:49,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [385 Valid, 307 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 1017 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2024-11-20 18:47:49,926 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 444 states. [2024-11-20 18:47:49,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 444 to 400. [2024-11-20 18:47:49,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 400 states, 332 states have (on average 1.322289156626506) internal successors, (439), 347 states have internal predecessors, (439), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 18:47:49,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 400 states to 400 states and 539 transitions. [2024-11-20 18:47:49,973 INFO L78 Accepts]: Start accepts. Automaton has 400 states and 539 transitions. Word has length 93 [2024-11-20 18:47:49,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:47:49,973 INFO L471 AbstractCegarLoop]: Abstraction has 400 states and 539 transitions. [2024-11-20 18:47:49,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 22 states have (on average 3.772727272727273) internal successors, (83), 23 states have internal predecessors, (83), 8 states have call successors, (21), 1 states have call predecessors, (21), 2 states have return successors, (22), 8 states have call predecessors, (22), 8 states have call successors, (22) [2024-11-20 18:47:49,973 INFO L276 IsEmpty]: Start isEmpty. Operand 400 states and 539 transitions. [2024-11-20 18:47:49,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-11-20 18:47:49,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:47:49,974 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:47:49,983 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-20 18:47:50,178 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:50,179 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:47:50,179 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:47:50,179 INFO L85 PathProgramCache]: Analyzing trace with hash 2083569129, now seen corresponding path program 3 times [2024-11-20 18:47:50,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:47:50,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170846711] [2024-11-20 18:47:50,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:47:50,180 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:47:50,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:47:50,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [918457574] [2024-11-20 18:47:50,204 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 18:47:50,204 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:47:50,204 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:47:50,209 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) [2024-11-20 18:47:50,210 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-20 18:47:50,254 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-20 18:47:50,254 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 18:47:50,255 INFO L255 TraceCheckSpWp]: Trace formula consists of 128 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-20 18:47:50,257 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:47:51,748 INFO L134 CoverageAnalysis]: Checked inductivity of 280 backedges. 26 proven. 35 refuted. 0 times theorem prover too weak. 219 trivial. 0 not checked. [2024-11-20 18:47:51,748 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:47:51,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:47:51,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170846711] [2024-11-20 18:47:51,921 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:47:51,921 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [918457574] [2024-11-20 18:47:51,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [918457574] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:47:51,921 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:47:51,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-20 18:47:51,922 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840506622] [2024-11-20 18:47:51,922 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:47:51,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 18:47:51,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:47:51,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 18:47:51,923 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=196, Unknown=2, NotChecked=0, Total=240 [2024-11-20 18:47:51,923 INFO L87 Difference]: Start difference. First operand 400 states and 539 transitions. Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-20 18:47:54,209 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.06s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-20 18:47:59,749 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.46s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-20 18:48:01,969 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:48:01,969 INFO L93 Difference]: Finished difference Result 431 states and 576 transitions. [2024-11-20 18:48:01,970 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-11-20 18:48:01,970 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 101 [2024-11-20 18:48:01,970 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:48:01,972 INFO L225 Difference]: With dead ends: 431 [2024-11-20 18:48:01,972 INFO L226 Difference]: Without dead ends: 427 [2024-11-20 18:48:01,973 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=130, Invalid=414, Unknown=8, NotChecked=0, Total=552 [2024-11-20 18:48:01,974 INFO L432 NwaCegarLoop]: 35 mSDtfsCounter, 232 mSDsluCounter, 204 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 56 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 232 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2024-11-20 18:48:01,974 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [232 Valid, 239 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 490 Invalid, 2 Unknown, 0 Unchecked, 3.7s Time] [2024-11-20 18:48:01,975 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 427 states. [2024-11-20 18:48:02,024 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 427 to 395. [2024-11-20 18:48:02,025 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 395 states, 330 states have (on average 1.2878787878787878) internal successors, (425), 342 states have internal predecessors, (425), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 18:48:02,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 395 states to 395 states and 525 transitions. [2024-11-20 18:48:02,026 INFO L78 Accepts]: Start accepts. Automaton has 395 states and 525 transitions. Word has length 101 [2024-11-20 18:48:02,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:48:02,027 INFO L471 AbstractCegarLoop]: Abstraction has 395 states and 525 transitions. [2024-11-20 18:48:02,027 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 10 states have internal predecessors, (32), 5 states have call successors, (8), 1 states have call predecessors, (8), 3 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-11-20 18:48:02,027 INFO L276 IsEmpty]: Start isEmpty. Operand 395 states and 525 transitions. [2024-11-20 18:48:02,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2024-11-20 18:48:02,028 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:48:02,028 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:48:02,037 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-20 18:48:02,229 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,SelfDestructingSolverStorable20 [2024-11-20 18:48:02,230 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr20ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:48:02,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:48:02,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1599808360, now seen corresponding path program 1 times [2024-11-20 18:48:02,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:48:02,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1382924603] [2024-11-20 18:48:02,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:02,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:48:02,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:48:02,267 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [624830783] [2024-11-20 18:48:02,267 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:02,267 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:48:02,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:48:02,269 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) [2024-11-20 18:48:02,273 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-11-20 18:48:02,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:02,326 INFO L255 TraceCheckSpWp]: Trace formula consists of 199 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-20 18:48:02,328 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:48:02,645 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-20 18:48:02,646 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:48:02,971 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:48:02,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1382924603] [2024-11-20 18:48:02,971 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:48:02,971 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [624830783] [2024-11-20 18:48:02,971 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [624830783] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:48:02,971 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:48:02,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-11-20 18:48:02,972 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977972353] [2024-11-20 18:48:02,972 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:48:02,972 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-20 18:48:02,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:48:02,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-20 18:48:02,973 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=104, Unknown=0, NotChecked=0, Total=156 [2024-11-20 18:48:02,973 INFO L87 Difference]: Start difference. First operand 395 states and 525 transitions. Second operand has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-20 18:48:03,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:48:03,304 INFO L93 Difference]: Finished difference Result 400 states and 532 transitions. [2024-11-20 18:48:03,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-20 18:48:03,304 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) Word has length 107 [2024-11-20 18:48:03,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:48:03,306 INFO L225 Difference]: With dead ends: 400 [2024-11-20 18:48:03,306 INFO L226 Difference]: Without dead ends: 399 [2024-11-20 18:48:03,306 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 139 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 29 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=161, Unknown=0, NotChecked=0, Total=240 [2024-11-20 18:48:03,307 INFO L432 NwaCegarLoop]: 62 mSDtfsCounter, 27 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 336 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 281 SdHoareTripleChecker+Invalid, 340 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 336 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 18:48:03,307 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 281 Invalid, 340 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 336 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 18:48:03,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 399 states. [2024-11-20 18:48:03,360 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 399 to 396. [2024-11-20 18:48:03,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 396 states, 331 states have (on average 1.2870090634441087) internal successors, (426), 343 states have internal predecessors, (426), 50 states have call successors, (50), 2 states have call predecessors, (50), 2 states have return successors, (50), 50 states have call predecessors, (50), 50 states have call successors, (50) [2024-11-20 18:48:03,362 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 396 states to 396 states and 526 transitions. [2024-11-20 18:48:03,363 INFO L78 Accepts]: Start accepts. Automaton has 396 states and 526 transitions. Word has length 107 [2024-11-20 18:48:03,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:48:03,363 INFO L471 AbstractCegarLoop]: Abstraction has 396 states and 526 transitions. [2024-11-20 18:48:03,363 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 6.0) internal successors, (48), 9 states have internal predecessors, (48), 5 states have call successors, (13), 1 states have call predecessors, (13), 1 states have return successors, (13), 5 states have call predecessors, (13), 5 states have call successors, (13) [2024-11-20 18:48:03,364 INFO L276 IsEmpty]: Start isEmpty. Operand 396 states and 526 transitions. [2024-11-20 18:48:03,364 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2024-11-20 18:48:03,364 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:48:03,365 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:48:03,373 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2024-11-20 18:48:03,565 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:48:03,565 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:48:03,566 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:48:03,566 INFO L85 PathProgramCache]: Analyzing trace with hash 1945548517, now seen corresponding path program 1 times [2024-11-20 18:48:03,566 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:48:03,566 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720955660] [2024-11-20 18:48:03,566 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:03,566 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:48:03,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:48:03,585 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1179554939] [2024-11-20 18:48:03,585 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:03,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:48:03,586 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:48:03,591 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) [2024-11-20 18:48:03,602 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-11-20 18:48:03,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:03,660 INFO L255 TraceCheckSpWp]: Trace formula consists of 200 conjuncts, 19 conjuncts are in the unsatisfiable core [2024-11-20 18:48:03,662 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:48:04,094 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-20 18:48:04,095 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:48:04,597 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:48:04,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720955660] [2024-11-20 18:48:04,597 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:48:04,597 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1179554939] [2024-11-20 18:48:04,597 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1179554939] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:48:04,597 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:48:04,598 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-20 18:48:04,598 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1062568339] [2024-11-20 18:48:04,598 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:48:04,598 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 18:48:04,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:48:04,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 18:48:04,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=61, Invalid=179, Unknown=0, NotChecked=0, Total=240 [2024-11-20 18:48:04,599 INFO L87 Difference]: Start difference. First operand 396 states and 526 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-20 18:48:05,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:48:05,028 INFO L93 Difference]: Finished difference Result 668 states and 905 transitions. [2024-11-20 18:48:05,028 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-20 18:48:05,028 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) Word has length 108 [2024-11-20 18:48:05,029 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:48:05,030 INFO L225 Difference]: With dead ends: 668 [2024-11-20 18:48:05,030 INFO L226 Difference]: Without dead ends: 417 [2024-11-20 18:48:05,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=154, Invalid=446, Unknown=0, NotChecked=0, Total=600 [2024-11-20 18:48:05,031 INFO L432 NwaCegarLoop]: 58 mSDtfsCounter, 100 mSDsluCounter, 308 mSDsCounter, 0 mSdLazyCounter, 467 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 366 SdHoareTripleChecker+Invalid, 480 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 467 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-20 18:48:05,032 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 366 Invalid, 480 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 467 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-20 18:48:05,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 417 states. [2024-11-20 18:48:05,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 417 to 411. [2024-11-20 18:48:05,083 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 411 states, 342 states have (on average 1.3011695906432748) internal successors, (445), 354 states have internal predecessors, (445), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 18:48:05,084 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 411 states to 411 states and 553 transitions. [2024-11-20 18:48:05,085 INFO L78 Accepts]: Start accepts. Automaton has 411 states and 553 transitions. Word has length 108 [2024-11-20 18:48:05,085 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:48:05,085 INFO L471 AbstractCegarLoop]: Abstraction has 411 states and 553 transitions. [2024-11-20 18:48:05,085 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 12 states have internal predecessors, (52), 6 states have call successors, (13), 1 states have call predecessors, (13), 2 states have return successors, (13), 5 states have call predecessors, (13), 6 states have call successors, (13) [2024-11-20 18:48:05,086 INFO L276 IsEmpty]: Start isEmpty. Operand 411 states and 553 transitions. [2024-11-20 18:48:05,086 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 110 [2024-11-20 18:48:05,087 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:48:05,087 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:48:05,095 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-11-20 18:48:05,291 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:48:05,292 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr22ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:48:05,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:48:05,292 INFO L85 PathProgramCache]: Analyzing trace with hash 182462010, now seen corresponding path program 1 times [2024-11-20 18:48:05,292 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:48:05,292 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [528490529] [2024-11-20 18:48:05,292 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:05,292 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:48:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:48:05,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,383 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:48:05,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:48:05,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:48:05,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,390 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:48:05,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,391 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:48:05,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,393 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 18:48:05,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 18:48:05,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 18:48:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 18:48:05,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,399 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 18:48:05,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,400 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 18:48:05,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,404 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 18:48:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,407 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-20 18:48:05,407 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:48:05,407 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [528490529] [2024-11-20 18:48:05,408 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [528490529] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-20 18:48:05,408 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-20 18:48:05,408 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-20 18:48:05,408 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1321568907] [2024-11-20 18:48:05,408 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-20 18:48:05,409 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-20 18:48:05,409 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:48:05,409 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-20 18:48:05,409 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-20 18:48:05,410 INFO L87 Difference]: Start difference. First operand 411 states and 553 transitions. Second operand has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-20 18:48:05,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:48:05,592 INFO L93 Difference]: Finished difference Result 411 states and 553 transitions. [2024-11-20 18:48:05,592 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-20 18:48:05,592 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) Word has length 109 [2024-11-20 18:48:05,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:48:05,594 INFO L225 Difference]: With dead ends: 411 [2024-11-20 18:48:05,594 INFO L226 Difference]: Without dead ends: 410 [2024-11-20 18:48:05,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-20 18:48:05,595 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 43 mSDsluCounter, 93 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 46 SdHoareTripleChecker+Valid, 146 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-20 18:48:05,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [46 Valid, 146 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-20 18:48:05,596 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 410 states. [2024-11-20 18:48:05,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 410 to 410. [2024-11-20 18:48:05,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 410 states, 342 states have (on average 1.2982456140350878) internal successors, (444), 353 states have internal predecessors, (444), 54 states have call successors, (54), 2 states have call predecessors, (54), 2 states have return successors, (54), 54 states have call predecessors, (54), 54 states have call successors, (54) [2024-11-20 18:48:05,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 552 transitions. [2024-11-20 18:48:05,644 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 552 transitions. Word has length 109 [2024-11-20 18:48:05,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:48:05,645 INFO L471 AbstractCegarLoop]: Abstraction has 410 states and 552 transitions. [2024-11-20 18:48:05,645 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.75) internal successors, (47), 5 states have internal predecessors, (47), 2 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (10), 2 states have call predecessors, (10), 2 states have call successors, (10) [2024-11-20 18:48:05,645 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 552 transitions. [2024-11-20 18:48:05,646 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 112 [2024-11-20 18:48:05,646 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:48:05,646 INFO L215 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:48:05,646 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2024-11-20 18:48:05,646 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:48:05,647 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:48:05,647 INFO L85 PathProgramCache]: Analyzing trace with hash 1739425004, now seen corresponding path program 1 times [2024-11-20 18:48:05,647 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:48:05,647 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [532763561] [2024-11-20 18:48:05,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:05,647 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:48:05,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,725 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:48:05,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,727 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:48:05,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,729 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:48:05,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,730 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:48:05,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,733 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:48:05,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,735 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:48:05,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 18:48:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 18:48:05,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,742 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 18:48:05,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 18:48:05,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,747 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2024-11-20 18:48:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-20 18:48:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-11-20 18:48:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2024-11-20 18:48:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-20 18:48:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,760 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-20 18:48:05,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:48:05,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [532763561] [2024-11-20 18:48:05,761 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [532763561] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:48:05,761 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [247563766] [2024-11-20 18:48:05,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:05,761 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:48:05,761 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:48:05,764 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) [2024-11-20 18:48:05,765 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-11-20 18:48:05,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:05,811 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-20 18:48:05,813 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:48:05,865 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-20 18:48:05,865 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:48:05,994 INFO L134 CoverageAnalysis]: Checked inductivity of 342 backedges. 0 proven. 66 refuted. 0 times theorem prover too weak. 276 trivial. 0 not checked. [2024-11-20 18:48:05,994 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [247563766] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:48:05,994 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 18:48:05,994 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-11-20 18:48:05,994 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1641604572] [2024-11-20 18:48:05,994 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 18:48:05,995 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-11-20 18:48:05,995 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:48:05,995 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-11-20 18:48:05,995 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-20 18:48:05,996 INFO L87 Difference]: Start difference. First operand 410 states and 552 transitions. Second operand has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-20 18:48:06,230 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:48:06,230 INFO L93 Difference]: Finished difference Result 727 states and 962 transitions. [2024-11-20 18:48:06,231 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-11-20 18:48:06,231 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) Word has length 111 [2024-11-20 18:48:06,231 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:48:06,234 INFO L225 Difference]: With dead ends: 727 [2024-11-20 18:48:06,234 INFO L226 Difference]: Without dead ends: 725 [2024-11-20 18:48:06,234 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 246 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-11-20 18:48:06,235 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 215 mSDsluCounter, 286 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 231 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 194 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 18:48:06,235 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [231 Valid, 352 Invalid, 194 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 18:48:06,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 725 states. [2024-11-20 18:48:06,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 725 to 484. [2024-11-20 18:48:06,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 484 states, 402 states have (on average 1.271144278606965) internal successors, (511), 413 states have internal predecessors, (511), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-20 18:48:06,305 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 484 states to 484 states and 647 transitions. [2024-11-20 18:48:06,305 INFO L78 Accepts]: Start accepts. Automaton has 484 states and 647 transitions. Word has length 111 [2024-11-20 18:48:06,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:48:06,306 INFO L471 AbstractCegarLoop]: Abstraction has 484 states and 647 transitions. [2024-11-20 18:48:06,306 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 8.4) internal successors, (84), 11 states have internal predecessors, (84), 10 states have call successors, (30), 1 states have call predecessors, (30), 1 states have return successors, (30), 10 states have call predecessors, (30), 10 states have call successors, (30) [2024-11-20 18:48:06,306 INFO L276 IsEmpty]: Start isEmpty. Operand 484 states and 647 transitions. [2024-11-20 18:48:06,307 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 111 [2024-11-20 18:48:06,307 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:48:06,307 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-20 18:48:06,316 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-11-20 18:48:06,507 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 [2024-11-20 18:48:06,508 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr23ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:48:06,508 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:48:06,508 INFO L85 PathProgramCache]: Analyzing trace with hash 1361355143, now seen corresponding path program 1 times [2024-11-20 18:48:06,508 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:48:06,508 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472161963] [2024-11-20 18:48:06,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:06,509 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:48:06,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:48:06,526 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859702361] [2024-11-20 18:48:06,527 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:06,527 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:48:06,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:48:06,530 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) [2024-11-20 18:48:06,533 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-11-20 18:48:06,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:06,587 INFO L255 TraceCheckSpWp]: Trace formula consists of 202 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-11-20 18:48:06,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:48:07,082 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 7 proven. 16 refuted. 0 times theorem prover too weak. 186 trivial. 0 not checked. [2024-11-20 18:48:07,082 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:48:07,967 INFO L134 CoverageAnalysis]: Checked inductivity of 209 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-20 18:48:07,967 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:48:07,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472161963] [2024-11-20 18:48:07,967 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:48:07,967 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859702361] [2024-11-20 18:48:07,967 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859702361] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:48:07,967 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-11-20 18:48:07,967 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 8] total 19 [2024-11-20 18:48:07,967 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1304945305] [2024-11-20 18:48:07,968 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-11-20 18:48:07,968 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-20 18:48:07,968 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:48:07,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-20 18:48:07,969 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=278, Unknown=0, NotChecked=0, Total=380 [2024-11-20 18:48:07,970 INFO L87 Difference]: Start difference. First operand 484 states and 647 transitions. Second operand has 20 states, 19 states have (on average 5.105263157894737) internal successors, (97), 20 states have internal predecessors, (97), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-20 18:48:09,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:48:09,140 INFO L93 Difference]: Finished difference Result 529 states and 703 transitions. [2024-11-20 18:48:09,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-11-20 18:48:09,140 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 5.105263157894737) internal successors, (97), 20 states have internal predecessors, (97), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) Word has length 110 [2024-11-20 18:48:09,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:48:09,143 INFO L225 Difference]: With dead ends: 529 [2024-11-20 18:48:09,143 INFO L226 Difference]: Without dead ends: 522 [2024-11-20 18:48:09,143 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 199 SyntacticMatches, 1 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 229 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=269, Invalid=787, Unknown=0, NotChecked=0, Total=1056 [2024-11-20 18:48:09,145 INFO L432 NwaCegarLoop]: 56 mSDtfsCounter, 111 mSDsluCounter, 281 mSDsCounter, 0 mSdLazyCounter, 490 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 490 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-20 18:48:09,145 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 337 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 490 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-20 18:48:09,146 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 522 states. [2024-11-20 18:48:09,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 522 to 481. [2024-11-20 18:48:09,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 481 states, 399 states have (on average 1.2606516290726817) internal successors, (503), 410 states have internal predecessors, (503), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-20 18:48:09,200 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 481 states to 481 states and 639 transitions. [2024-11-20 18:48:09,200 INFO L78 Accepts]: Start accepts. Automaton has 481 states and 639 transitions. Word has length 110 [2024-11-20 18:48:09,200 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:48:09,201 INFO L471 AbstractCegarLoop]: Abstraction has 481 states and 639 transitions. [2024-11-20 18:48:09,201 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 5.105263157894737) internal successors, (97), 20 states have internal predecessors, (97), 10 states have call successors, (25), 1 states have call predecessors, (25), 2 states have return successors, (26), 10 states have call predecessors, (26), 10 states have call successors, (26) [2024-11-20 18:48:09,201 INFO L276 IsEmpty]: Start isEmpty. Operand 481 states and 639 transitions. [2024-11-20 18:48:09,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 18:48:09,202 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:48:09,202 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-20 18:48:09,210 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-11-20 18:48:09,406 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 [2024-11-20 18:48:09,407 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:48:09,407 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:48:09,407 INFO L85 PathProgramCache]: Analyzing trace with hash -1971728133, now seen corresponding path program 2 times [2024-11-20 18:48:09,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:48:09,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [245678331] [2024-11-20 18:48:09,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:09,407 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:48:09,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:48:09,431 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1680928285] [2024-11-20 18:48:09,431 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 18:48:09,431 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:48:09,431 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:48:09,434 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) [2024-11-20 18:48:09,436 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-11-20 18:48:09,494 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 18:48:09,494 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 18:48:09,495 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-20 18:48:09,497 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:48:09,665 INFO L134 CoverageAnalysis]: Checked inductivity of 259 backedges. 25 proven. 2 refuted. 0 times theorem prover too weak. 232 trivial. 0 not checked. [2024-11-20 18:48:09,665 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:48:10,314 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:48:10,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [245678331] [2024-11-20 18:48:10,315 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:48:10,315 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1680928285] [2024-11-20 18:48:10,315 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1680928285] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:48:10,315 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:48:10,315 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-11-20 18:48:10,316 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1659411822] [2024-11-20 18:48:10,316 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:48:10,316 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-20 18:48:10,316 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:48:10,317 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-20 18:48:10,317 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2024-11-20 18:48:10,317 INFO L87 Difference]: Start difference. First operand 481 states and 639 transitions. Second operand has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 18:48:10,576 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:48:10,576 INFO L93 Difference]: Finished difference Result 544 states and 730 transitions. [2024-11-20 18:48:10,577 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-20 18:48:10,577 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) Word has length 113 [2024-11-20 18:48:10,577 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:48:10,579 INFO L225 Difference]: With dead ends: 544 [2024-11-20 18:48:10,579 INFO L226 Difference]: Without dead ends: 542 [2024-11-20 18:48:10,579 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2024-11-20 18:48:10,580 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 74 mSDsluCounter, 117 mSDsCounter, 0 mSdLazyCounter, 211 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 206 SdHoareTripleChecker+Invalid, 224 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 211 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-20 18:48:10,580 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 206 Invalid, 224 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 211 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-20 18:48:10,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 542 states. [2024-11-20 18:48:10,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 542 to 479. [2024-11-20 18:48:10,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 479 states, 399 states have (on average 1.1979949874686717) internal successors, (478), 408 states have internal predecessors, (478), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-20 18:48:10,652 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 479 states to 479 states and 614 transitions. [2024-11-20 18:48:10,654 INFO L78 Accepts]: Start accepts. Automaton has 479 states and 614 transitions. Word has length 113 [2024-11-20 18:48:10,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:48:10,655 INFO L471 AbstractCegarLoop]: Abstraction has 479 states and 614 transitions. [2024-11-20 18:48:10,655 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 9.8) internal successors, (49), 6 states have internal predecessors, (49), 4 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 4 states have call predecessors, (14), 4 states have call successors, (14) [2024-11-20 18:48:10,655 INFO L276 IsEmpty]: Start isEmpty. Operand 479 states and 614 transitions. [2024-11-20 18:48:10,656 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2024-11-20 18:48:10,657 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:48:10,657 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1] [2024-11-20 18:48:10,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-11-20 18:48:10,857 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 [2024-11-20 18:48:10,858 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:48:10,858 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:48:10,858 INFO L85 PathProgramCache]: Analyzing trace with hash 788298852, now seen corresponding path program 1 times [2024-11-20 18:48:10,858 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:48:10,858 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692316648] [2024-11-20 18:48:10,858 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:10,858 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:48:10,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,084 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-11-20 18:48:11,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2024-11-20 18:48:11,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-20 18:48:11,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,089 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-20 18:48:11,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,091 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-20 18:48:11,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,093 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-20 18:48:11,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,095 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2024-11-20 18:48:11,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-20 18:48:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 55 [2024-11-20 18:48:11,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,102 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2024-11-20 18:48:11,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-11-20 18:48:11,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-20 18:48:11,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-11-20 18:48:11,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,115 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 0 proven. 17 refuted. 0 times theorem prover too weak. 199 trivial. 0 not checked. [2024-11-20 18:48:11,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:48:11,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692316648] [2024-11-20 18:48:11,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692316648] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:48:11,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [562314789] [2024-11-20 18:48:11,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:11,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:48:11,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:48:11,118 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) [2024-11-20 18:48:11,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-11-20 18:48:11,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-20 18:48:11,171 INFO L255 TraceCheckSpWp]: Trace formula consists of 208 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-11-20 18:48:11,173 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:48:11,242 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-20 18:48:11,243 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:48:11,366 INFO L134 CoverageAnalysis]: Checked inductivity of 216 backedges. 7 proven. 17 refuted. 0 times theorem prover too weak. 192 trivial. 0 not checked. [2024-11-20 18:48:11,366 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [562314789] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-20 18:48:11,366 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-20 18:48:11,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 4, 4] total 12 [2024-11-20 18:48:11,367 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264716088] [2024-11-20 18:48:11,367 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-20 18:48:11,367 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 18:48:11,367 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:48:11,368 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 18:48:11,368 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=108, Unknown=0, NotChecked=0, Total=132 [2024-11-20 18:48:11,368 INFO L87 Difference]: Start difference. First operand 479 states and 614 transitions. Second operand has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-20 18:48:12,033 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:48:12,034 INFO L93 Difference]: Finished difference Result 843 states and 1104 transitions. [2024-11-20 18:48:12,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 18:48:12,034 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) Word has length 113 [2024-11-20 18:48:12,034 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:48:12,037 INFO L225 Difference]: With dead ends: 843 [2024-11-20 18:48:12,037 INFO L226 Difference]: Without dead ends: 708 [2024-11-20 18:48:12,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 270 GetRequests, 249 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=97, Invalid=409, Unknown=0, NotChecked=0, Total=506 [2024-11-20 18:48:12,038 INFO L432 NwaCegarLoop]: 77 mSDtfsCounter, 165 mSDsluCounter, 441 mSDsCounter, 0 mSdLazyCounter, 696 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 518 SdHoareTripleChecker+Invalid, 720 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 696 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-20 18:48:12,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 518 Invalid, 720 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 696 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-20 18:48:12,039 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 708 states. [2024-11-20 18:48:12,105 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 708 to 474. [2024-11-20 18:48:12,106 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474 states, 394 states have (on average 1.2258883248730965) internal successors, (483), 403 states have internal predecessors, (483), 68 states have call successors, (68), 2 states have call predecessors, (68), 2 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2024-11-20 18:48:12,107 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474 states to 474 states and 619 transitions. [2024-11-20 18:48:12,108 INFO L78 Accepts]: Start accepts. Automaton has 474 states and 619 transitions. Word has length 113 [2024-11-20 18:48:12,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:48:12,108 INFO L471 AbstractCegarLoop]: Abstraction has 474 states and 619 transitions. [2024-11-20 18:48:12,108 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 9.416666666666666) internal successors, (113), 12 states have internal predecessors, (113), 7 states have call successors, (25), 1 states have call predecessors, (25), 1 states have return successors, (25), 7 states have call predecessors, (25), 7 states have call successors, (25) [2024-11-20 18:48:12,108 INFO L276 IsEmpty]: Start isEmpty. Operand 474 states and 619 transitions. [2024-11-20 18:48:12,109 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 115 [2024-11-20 18:48:12,109 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:48:12,109 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-20 18:48:12,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-11-20 18:48:12,313 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 [2024-11-20 18:48:12,314 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:48:12,314 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:48:12,315 INFO L85 PathProgramCache]: Analyzing trace with hash -994029898, now seen corresponding path program 2 times [2024-11-20 18:48:12,315 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:48:12,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578618238] [2024-11-20 18:48:12,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:12,315 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:48:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:48:12,331 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1934121712] [2024-11-20 18:48:12,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-20 18:48:12,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:48:12,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:48:12,334 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) [2024-11-20 18:48:12,335 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-11-20 18:48:12,391 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-20 18:48:12,391 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 18:48:12,393 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 20 conjuncts are in the unsatisfiable core [2024-11-20 18:48:12,395 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:48:12,998 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 3 proven. 31 refuted. 0 times theorem prover too weak. 226 trivial. 0 not checked. [2024-11-20 18:48:12,998 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:48:13,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:48:13,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578618238] [2024-11-20 18:48:13,253 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:48:13,253 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1934121712] [2024-11-20 18:48:13,253 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1934121712] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:48:13,253 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:48:13,253 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2024-11-20 18:48:13,253 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [359590508] [2024-11-20 18:48:13,253 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:48:13,253 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-20 18:48:13,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:48:13,254 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-20 18:48:13,254 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=203, Unknown=0, NotChecked=0, Total=272 [2024-11-20 18:48:13,254 INFO L87 Difference]: Start difference. First operand 474 states and 619 transitions. Second operand has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 18:48:13,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-20 18:48:13,697 INFO L93 Difference]: Finished difference Result 512 states and 668 transitions. [2024-11-20 18:48:13,698 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-20 18:48:13,698 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) Word has length 114 [2024-11-20 18:48:13,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-20 18:48:13,700 INFO L225 Difference]: With dead ends: 512 [2024-11-20 18:48:13,700 INFO L226 Difference]: Without dead ends: 511 [2024-11-20 18:48:13,701 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 128 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-11-20 18:48:13,701 INFO L432 NwaCegarLoop]: 53 mSDtfsCounter, 73 mSDsluCounter, 334 mSDsCounter, 0 mSdLazyCounter, 715 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 387 SdHoareTripleChecker+Invalid, 717 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 715 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-20 18:48:13,701 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 387 Invalid, 717 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 715 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-20 18:48:13,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 511 states. [2024-11-20 18:48:13,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 511 to 499. [2024-11-20 18:48:13,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 499 states, 415 states have (on average 1.219277108433735) internal successors, (506), 424 states have internal predecessors, (506), 72 states have call successors, (72), 2 states have call predecessors, (72), 2 states have return successors, (72), 72 states have call predecessors, (72), 72 states have call successors, (72) [2024-11-20 18:48:13,781 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 499 states to 499 states and 650 transitions. [2024-11-20 18:48:13,782 INFO L78 Accepts]: Start accepts. Automaton has 499 states and 650 transitions. Word has length 114 [2024-11-20 18:48:13,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-20 18:48:13,782 INFO L471 AbstractCegarLoop]: Abstraction has 499 states and 650 transitions. [2024-11-20 18:48:13,782 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 4.076923076923077) internal successors, (53), 13 states have internal predecessors, (53), 6 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 6 states have call predecessors, (14), 6 states have call successors, (14) [2024-11-20 18:48:13,783 INFO L276 IsEmpty]: Start isEmpty. Operand 499 states and 650 transitions. [2024-11-20 18:48:13,783 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 138 [2024-11-20 18:48:13,783 INFO L207 NwaCegarLoop]: Found error trace [2024-11-20 18:48:13,784 INFO L215 NwaCegarLoop]: trace histogram [14, 14, 14, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-20 18:48:13,792 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Ended with exit code 0 [2024-11-20 18:48:13,987 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 [2024-11-20 18:48:13,988 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 21 more)] === [2024-11-20 18:48:13,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-20 18:48:13,988 INFO L85 PathProgramCache]: Analyzing trace with hash 33416471, now seen corresponding path program 3 times [2024-11-20 18:48:13,988 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-20 18:48:13,988 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [258752831] [2024-11-20 18:48:13,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-20 18:48:13,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-20 18:48:14,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-20 18:48:14,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [492278450] [2024-11-20 18:48:14,007 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-20 18:48:14,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-20 18:48:14,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-20 18:48:14,010 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) [2024-11-20 18:48:14,020 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-11-20 18:48:14,068 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-11-20 18:48:14,068 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-20 18:48:14,069 INFO L255 TraceCheckSpWp]: Trace formula consists of 109 conjuncts, 21 conjuncts are in the unsatisfiable core [2024-11-20 18:48:14,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-20 18:48:46,632 INFO L134 CoverageAnalysis]: Checked inductivity of 433 backedges. 64 proven. 3 refuted. 0 times theorem prover too weak. 366 trivial. 0 not checked. [2024-11-20 18:48:46,633 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-20 18:48:48,328 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-20 18:48:48,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [258752831] [2024-11-20 18:48:48,329 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-20 18:48:48,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [492278450] [2024-11-20 18:48:48,329 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [492278450] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-20 18:48:48,329 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-20 18:48:48,329 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-11-20 18:48:48,329 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464649299] [2024-11-20 18:48:48,329 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-20 18:48:48,329 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-11-20 18:48:48,329 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-20 18:48:48,330 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-11-20 18:48:48,330 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=77, Invalid=229, Unknown=0, NotChecked=0, Total=306 [2024-11-20 18:48:48,330 INFO L87 Difference]: Start difference. First operand 499 states and 650 transitions. Second operand has 12 states, 11 states have (on average 4.363636363636363) internal successors, (48), 12 states have internal predecessors, (48), 3 states have call successors, (11), 1 states have call predecessors, (11), 2 states have return successors, (11), 4 states have call predecessors, (11), 3 states have call successors, (11) [2024-11-20 18:48:51,947 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.43s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [] [2024-11-20 18:48:55,961 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 []