./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/mannadiv_valuebound20.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 4a390ef5 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/mannadiv_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 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 20:26:54,451 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 20:26:54,547 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2024-10-24 20:26:54,554 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 20:26:54,556 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 20:26:54,592 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 20:26:54,592 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 20:26:54,593 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 20:26:54,594 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 20:26:54,596 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 20:26:54,596 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 20:26:54,596 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 20:26:54,597 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 20:26:54,599 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 20:26:54,599 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 20:26:54,599 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 20:26:54,600 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 20:26:54,600 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 20:26:54,600 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 20:26:54,600 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 20:26:54,601 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 20:26:54,605 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 20:26:54,606 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 20:26:54,606 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 20:26:54,606 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 20:26:54,606 INFO L153 SettingsManager]: * Check absence of signed integer overflows=ASSERTandASSUME [2024-10-24 20:26:54,607 INFO L153 SettingsManager]: * Check unreachability of reach_error function=false [2024-10-24 20:26:54,607 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 20:26:54,607 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 20:26:54,607 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 20:26:54,607 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 20:26:54,608 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 20:26:54,608 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 20:26:54,608 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 20:26:54,608 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:26:54,608 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 20:26:54,609 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 20:26:54,609 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 20:26:54,611 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 20:26:54,611 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 20:26:54,611 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 20:26:54,612 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 20:26:54,612 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 20:26:54,612 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 20:26:54,613 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f0dc25e497896e48962fc4f59a3ea4856b5eb0408b9845e68b04a0b0a132067 [2024-10-24 20:26:54,853 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 20:26:54,879 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 20:26:54,881 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 20:26:54,883 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 20:26:54,883 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 20:26:54,884 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c [2024-10-24 20:26:56,385 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 20:26:56,603 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 20:26:56,604 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/mannadiv_valuebound20.c [2024-10-24 20:26:56,612 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cefed3f34/c85c8ad1f2c546ef8fd9039ba3640882/FLAG0694cd3c3 [2024-10-24 20:26:56,981 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cefed3f34/c85c8ad1f2c546ef8fd9039ba3640882 [2024-10-24 20:26:56,984 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 20:26:56,985 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 20:26:56,987 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 20:26:56,987 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 20:26:56,992 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 20:26:56,993 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:26:56" (1/1) ... [2024-10-24 20:26:56,995 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ed5c779 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:56, skipping insertion in model container [2024-10-24 20:26:56,995 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 08:26:56" (1/1) ... [2024-10-24 20:26:57,013 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 20:26:57,203 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:26:57,211 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 20:26:57,224 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 20:26:57,238 INFO L204 MainTranslator]: Completed translation [2024-10-24 20:26:57,239 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57 WrapperNode [2024-10-24 20:26:57,239 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 20:26:57,240 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 20:26:57,240 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 20:26:57,240 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 20:26:57,248 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,255 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,270 INFO L138 Inliner]: procedures = 14, calls = 12, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 69 [2024-10-24 20:26:57,270 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 20:26:57,271 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 20:26:57,271 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 20:26:57,271 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 20:26:57,281 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,281 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,283 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,292 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]. [2024-10-24 20:26:57,292 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,293 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,296 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,299 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,299 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,300 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,302 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 20:26:57,303 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 20:26:57,303 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 20:26:57,303 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 20:26:57,304 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (1/1) ... [2024-10-24 20:26:57,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 20:26:57,318 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:26:57,333 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) [2024-10-24 20:26:57,335 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 [2024-10-24 20:26:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 20:26:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 20:26:57,382 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 20:26:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 20:26:57,382 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 20:26:57,383 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 20:26:57,383 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-10-24 20:26:57,383 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-10-24 20:26:57,448 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 20:26:57,453 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 20:26:57,704 INFO L? ?]: Removed 45 outVars from TransFormulas that were not future-live. [2024-10-24 20:26:57,704 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 20:26:57,739 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 20:26:57,739 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 20:26:57,740 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:26:57 BoogieIcfgContainer [2024-10-24 20:26:57,740 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 20:26:57,742 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 20:26:57,743 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 20:26:57,746 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 20:26:57,746 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 08:26:56" (1/3) ... [2024-10-24 20:26:57,748 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a901945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:26:57, skipping insertion in model container [2024-10-24 20:26:57,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 08:26:57" (2/3) ... [2024-10-24 20:26:57,749 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a901945 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 08:26:57, skipping insertion in model container [2024-10-24 20:26:57,749 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 08:26:57" (3/3) ... [2024-10-24 20:26:57,751 INFO L112 eAbstractionObserver]: Analyzing ICFG mannadiv_valuebound20.c [2024-10-24 20:26:57,771 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 20:26:57,772 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 20 error locations. [2024-10-24 20:26:57,827 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 20:26:57,833 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;@3a9ae2f9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 20:26:57,833 INFO L334 AbstractCegarLoop]: Starting to check reachability of 20 error locations. [2024-10-24 20:26:57,836 INFO L276 IsEmpty]: Start isEmpty. Operand has 59 states, 32 states have (on average 1.8125) internal successors, (58), 52 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:26:57,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-24 20:26:57,842 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:26:57,842 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:26:57,843 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr16ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:26:57,846 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:26:57,847 INFO L85 PathProgramCache]: Analyzing trace with hash -1455350132, now seen corresponding path program 1 times [2024-10-24 20:26:57,854 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:26:57,854 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1644219805] [2024-10-24 20:26:57,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:26:57,855 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:26:57,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:58,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:26:58,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:58,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:26:58,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:58,048 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:26:58,049 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:26:58,049 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1644219805] [2024-10-24 20:26:58,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1644219805] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:26:58,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:26:58,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:26:58,052 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851264663] [2024-10-24 20:26:58,053 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:26:58,057 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 20:26:58,057 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:26:58,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 20:26:58,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:26:58,079 INFO L87 Difference]: Start difference. First operand has 59 states, 32 states have (on average 1.8125) internal successors, (58), 52 states have internal predecessors, (58), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:26:58,104 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:26:58,104 INFO L93 Difference]: Finished difference Result 116 states and 133 transitions. [2024-10-24 20:26:58,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 20:26:58,109 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-24 20:26:58,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:26:58,117 INFO L225 Difference]: With dead ends: 116 [2024-10-24 20:26:58,117 INFO L226 Difference]: Without dead ends: 56 [2024-10-24 20:26:58,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 20:26:58,126 INFO L432 NwaCegarLoop]: 60 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 2 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 2 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 2 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:26:58,127 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 60 Invalid, 2 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 2 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:26:58,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2024-10-24 20:26:58,158 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2024-10-24 20:26:58,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 31 states have (on average 1.6774193548387097) internal successors, (52), 50 states have internal predecessors, (52), 3 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:26:58,163 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 58 transitions. [2024-10-24 20:26:58,166 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 58 transitions. Word has length 14 [2024-10-24 20:26:58,168 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:26:58,168 INFO L471 AbstractCegarLoop]: Abstraction has 56 states and 58 transitions. [2024-10-24 20:26:58,169 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 3.5) internal successors, (7), 2 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:26:58,169 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 58 transitions. [2024-10-24 20:26:58,170 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2024-10-24 20:26:58,170 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:26:58,171 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:26:58,171 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 20:26:58,172 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:26:58,172 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:26:58,172 INFO L85 PathProgramCache]: Analyzing trace with hash -1455350117, now seen corresponding path program 1 times [2024-10-24 20:26:58,173 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:26:58,173 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [954942490] [2024-10-24 20:26:58,173 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:26:58,173 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:26:58,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:26:58,215 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [452912799] [2024-10-24 20:26:58,216 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:26:58,217 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:26:58,217 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:26:58,219 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) [2024-10-24 20:26:58,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-10-24 20:26:58,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:58,291 INFO L255 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-10-24 20:26:58,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:26:58,320 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:26:58,322 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:26:58,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:26:58,323 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [954942490] [2024-10-24 20:26:58,323 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:26:58,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [452912799] [2024-10-24 20:26:58,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [452912799] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:26:58,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:26:58,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 20:26:58,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1869982372] [2024-10-24 20:26:58,325 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:26:58,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 20:26:58,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:26:58,329 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 20:26:58,329 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:26:58,330 INFO L87 Difference]: Start difference. First operand 56 states and 58 transitions. Second operand has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:26:58,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:26:58,421 INFO L93 Difference]: Finished difference Result 90 states and 100 transitions. [2024-10-24 20:26:58,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 20:26:58,422 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 14 [2024-10-24 20:26:58,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:26:58,423 INFO L225 Difference]: With dead ends: 90 [2024-10-24 20:26:58,423 INFO L226 Difference]: Without dead ends: 84 [2024-10-24 20:26:58,424 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 20:26:58,425 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 26 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 73 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:26:58,429 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 73 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:26:58,432 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 84 states. [2024-10-24 20:26:58,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 84 to 76. [2024-10-24 20:26:58,442 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 50 states have (on average 1.66) internal successors, (83), 69 states have internal predecessors, (83), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2024-10-24 20:26:58,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 91 transitions. [2024-10-24 20:26:58,445 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 91 transitions. Word has length 14 [2024-10-24 20:26:58,445 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:26:58,445 INFO L471 AbstractCegarLoop]: Abstraction has 76 states and 91 transitions. [2024-10-24 20:26:58,445 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 3.5) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:26:58,446 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 91 transitions. [2024-10-24 20:26:58,446 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-10-24 20:26:58,446 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:26:58,446 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:26:58,461 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-10-24 20:26:58,647 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 [2024-10-24 20:26:58,648 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:26:58,648 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:26:58,648 INFO L85 PathProgramCache]: Analyzing trace with hash 1567877597, now seen corresponding path program 1 times [2024-10-24 20:26:58,649 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:26:58,649 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2075732286] [2024-10-24 20:26:58,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:26:58,649 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:26:58,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:58,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:26:58,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:58,790 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:26:58,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:58,801 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:26:58,801 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:26:58,801 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2075732286] [2024-10-24 20:26:58,801 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2075732286] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:26:58,801 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:26:58,802 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:26:58,802 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364022623] [2024-10-24 20:26:58,802 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:26:58,802 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:26:58,803 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:26:58,804 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:26:58,804 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:26:58,804 INFO L87 Difference]: Start difference. First operand 76 states and 91 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:26:59,012 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:26:59,012 INFO L93 Difference]: Finished difference Result 120 states and 152 transitions. [2024-10-24 20:26:59,013 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:26:59,013 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 16 [2024-10-24 20:26:59,013 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:26:59,015 INFO L225 Difference]: With dead ends: 120 [2024-10-24 20:26:59,016 INFO L226 Difference]: Without dead ends: 113 [2024-10-24 20:26:59,016 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:26:59,017 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 34 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 35 SdHoareTripleChecker+Valid, 71 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:26:59,018 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [35 Valid, 71 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:26:59,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 113 states. [2024-10-24 20:26:59,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 113 to 109. [2024-10-24 20:26:59,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 109 states, 81 states have (on average 1.5679012345679013) internal successors, (127), 100 states have internal predecessors, (127), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:26:59,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 109 states to 109 states and 139 transitions. [2024-10-24 20:26:59,033 INFO L78 Accepts]: Start accepts. Automaton has 109 states and 139 transitions. Word has length 16 [2024-10-24 20:26:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:26:59,033 INFO L471 AbstractCegarLoop]: Abstraction has 109 states and 139 transitions. [2024-10-24 20:26:59,035 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:26:59,035 INFO L276 IsEmpty]: Start isEmpty. Operand 109 states and 139 transitions. [2024-10-24 20:26:59,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-10-24 20:26:59,035 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:26:59,036 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:26:59,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 20:26:59,036 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:26:59,036 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:26:59,037 INFO L85 PathProgramCache]: Analyzing trace with hash 1359565303, now seen corresponding path program 1 times [2024-10-24 20:26:59,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:26:59,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [442722968] [2024-10-24 20:26:59,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:26:59,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:26:59,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:59,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:26:59,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:59,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:26:59,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:59,148 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:26:59,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:26:59,150 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [442722968] [2024-10-24 20:26:59,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [442722968] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:26:59,152 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:26:59,152 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:26:59,152 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450417399] [2024-10-24 20:26:59,152 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:26:59,153 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:26:59,153 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:26:59,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:26:59,154 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:26:59,154 INFO L87 Difference]: Start difference. First operand 109 states and 139 transitions. Second operand has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:26:59,277 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:26:59,277 INFO L93 Difference]: Finished difference Result 115 states and 140 transitions. [2024-10-24 20:26:59,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:26:59,278 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 17 [2024-10-24 20:26:59,278 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:26:59,279 INFO L225 Difference]: With dead ends: 115 [2024-10-24 20:26:59,279 INFO L226 Difference]: Without dead ends: 106 [2024-10-24 20:26:59,279 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:26:59,280 INFO L432 NwaCegarLoop]: 40 mSDtfsCounter, 32 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 44 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 75 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 44 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:26:59,281 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 75 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 44 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:26:59,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-24 20:26:59,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-10-24 20:26:59,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.5394736842105263) internal successors, (117), 95 states have internal predecessors, (117), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:26:59,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 129 transitions. [2024-10-24 20:26:59,291 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 129 transitions. Word has length 17 [2024-10-24 20:26:59,291 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:26:59,292 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 129 transitions. [2024-10-24 20:26:59,292 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.3333333333333335) internal successors, (10), 4 states have internal predecessors, (10), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:26:59,292 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 129 transitions. [2024-10-24 20:26:59,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-10-24 20:26:59,293 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:26:59,293 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:26:59,293 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 20:26:59,293 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:26:59,294 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:26:59,294 INFO L85 PathProgramCache]: Analyzing trace with hash -803148513, now seen corresponding path program 1 times [2024-10-24 20:26:59,294 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:26:59,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378209274] [2024-10-24 20:26:59,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:26:59,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:26:59,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:59,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:26:59,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:59,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:26:59,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:59,549 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:26:59,549 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:26:59,549 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378209274] [2024-10-24 20:26:59,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378209274] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:26:59,550 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [9583654] [2024-10-24 20:26:59,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:26:59,550 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:26:59,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:26:59,553 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) [2024-10-24 20:26:59,555 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-10-24 20:26:59,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:26:59,606 INFO L255 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:26:59,608 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:26:59,740 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:26:59,741 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:26:59,742 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [9583654] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:26:59,742 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:26:59,742 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-10-24 20:26:59,742 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395823166] [2024-10-24 20:26:59,743 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:26:59,743 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:26:59,743 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:26:59,744 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:26:59,746 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:26:59,746 INFO L87 Difference]: Start difference. First operand 104 states and 129 transitions. Second operand has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:26:59,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:26:59,908 INFO L93 Difference]: Finished difference Result 107 states and 133 transitions. [2024-10-24 20:26:59,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:26:59,909 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 18 [2024-10-24 20:26:59,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:26:59,910 INFO L225 Difference]: With dead ends: 107 [2024-10-24 20:26:59,910 INFO L226 Difference]: Without dead ends: 106 [2024-10-24 20:26:59,910 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:26:59,911 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 72 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 64 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 73 SdHoareTripleChecker+Valid, 60 SdHoareTripleChecker+Invalid, 67 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 64 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:26:59,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [73 Valid, 60 Invalid, 67 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 64 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:26:59,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 106 states. [2024-10-24 20:26:59,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 106 to 104. [2024-10-24 20:26:59,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.5263157894736843) internal successors, (116), 95 states have internal predecessors, (116), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:26:59,929 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 128 transitions. [2024-10-24 20:26:59,929 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 128 transitions. Word has length 18 [2024-10-24 20:26:59,929 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:26:59,929 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 128 transitions. [2024-10-24 20:26:59,929 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:26:59,929 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 128 transitions. [2024-10-24 20:26:59,930 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2024-10-24 20:26:59,930 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:26:59,930 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:26:59,946 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-10-24 20:27:00,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:00,131 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:00,131 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:00,132 INFO L85 PathProgramCache]: Analyzing trace with hash 872199929, now seen corresponding path program 1 times [2024-10-24 20:27:00,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:00,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1229716440] [2024-10-24 20:27:00,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:00,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:00,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:00,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [410138268] [2024-10-24 20:27:00,144 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:00,144 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:00,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:00,150 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) [2024-10-24 20:27:00,152 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-10-24 20:27:00,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:00,193 INFO L255 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:27:00,194 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:00,289 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:27:00,290 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:27:00,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:00,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1229716440] [2024-10-24 20:27:00,290 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:00,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [410138268] [2024-10-24 20:27:00,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [410138268] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:27:00,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:27:00,290 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:27:00,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [531121886] [2024-10-24 20:27:00,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:27:00,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:27:00,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:00,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:27:00,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:27:00,292 INFO L87 Difference]: Start difference. First operand 104 states and 128 transitions. Second operand has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:27:00,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:00,384 INFO L93 Difference]: Finished difference Result 105 states and 128 transitions. [2024-10-24 20:27:00,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:27:00,385 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) Word has length 19 [2024-10-24 20:27:00,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:00,386 INFO L225 Difference]: With dead ends: 105 [2024-10-24 20:27:00,386 INFO L226 Difference]: Without dead ends: 104 [2024-10-24 20:27:00,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:27:00,387 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 65 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 59 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 61 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 59 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:00,388 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 65 Invalid, 61 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 59 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:27:00,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 104 states. [2024-10-24 20:27:00,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 104 to 104. [2024-10-24 20:27:00,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 76 states have (on average 1.513157894736842) internal successors, (115), 95 states have internal predecessors, (115), 6 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-10-24 20:27:00,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 127 transitions. [2024-10-24 20:27:00,397 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 127 transitions. Word has length 19 [2024-10-24 20:27:00,397 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:00,397 INFO L471 AbstractCegarLoop]: Abstraction has 104 states and 127 transitions. [2024-10-24 20:27:00,397 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 4.0) internal successors, (12), 4 states have internal predecessors, (12), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (2), 1 states have call predecessors, (2), 1 states have call successors, (2) [2024-10-24 20:27:00,398 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 127 transitions. [2024-10-24 20:27:00,398 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2024-10-24 20:27:00,398 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:00,399 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:00,416 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:00,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:00,600 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr14ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:00,600 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:00,600 INFO L85 PathProgramCache]: Analyzing trace with hash 348287117, now seen corresponding path program 1 times [2024-10-24 20:27:00,601 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:00,601 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1866411587] [2024-10-24 20:27:00,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:00,601 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:00,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:00,678 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:00,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:00,714 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:00,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:00,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:00,733 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:27:00,735 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:00,735 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1866411587] [2024-10-24 20:27:00,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1866411587] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:00,736 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [746470213] [2024-10-24 20:27:00,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:00,736 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:00,736 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:00,738 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) [2024-10-24 20:27:00,739 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-10-24 20:27:00,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:00,787 INFO L255 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:27:00,788 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:00,838 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:27:00,838 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:00,987 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:27:00,988 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [746470213] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:00,988 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:00,988 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-10-24 20:27:00,988 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684343740] [2024-10-24 20:27:00,988 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:00,988 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 20:27:00,989 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:00,994 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 20:27:00,994 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:27:00,994 INFO L87 Difference]: Start difference. First operand 104 states and 127 transitions. Second operand has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-24 20:27:01,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:01,129 INFO L93 Difference]: Finished difference Result 157 states and 194 transitions. [2024-10-24 20:27:01,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:27:01,129 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) Word has length 31 [2024-10-24 20:27:01,130 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:01,131 INFO L225 Difference]: With dead ends: 157 [2024-10-24 20:27:01,131 INFO L226 Difference]: Without dead ends: 155 [2024-10-24 20:27:01,131 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=79, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:27:01,133 INFO L432 NwaCegarLoop]: 41 mSDtfsCounter, 118 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 119 SdHoareTripleChecker+Valid, 172 SdHoareTripleChecker+Invalid, 84 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:01,133 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [119 Valid, 172 Invalid, 84 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:27:01,134 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 155 states. [2024-10-24 20:27:01,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 155 to 145. [2024-10-24 20:27:01,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 145 states, 115 states have (on average 1.5043478260869565) internal successors, (173), 134 states have internal predecessors, (173), 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) [2024-10-24 20:27:01,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 145 states to 145 states and 189 transitions. [2024-10-24 20:27:01,157 INFO L78 Accepts]: Start accepts. Automaton has 145 states and 189 transitions. Word has length 31 [2024-10-24 20:27:01,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:01,157 INFO L471 AbstractCegarLoop]: Abstraction has 145 states and 189 transitions. [2024-10-24 20:27:01,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 5.25) internal successors, (42), 7 states have internal predecessors, (42), 5 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-24 20:27:01,158 INFO L276 IsEmpty]: Start isEmpty. Operand 145 states and 189 transitions. [2024-10-24 20:27:01,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2024-10-24 20:27:01,160 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:01,160 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:01,178 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-10-24 20:27:01,361 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:01,361 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:01,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:01,362 INFO L85 PathProgramCache]: Analyzing trace with hash -2088001174, now seen corresponding path program 1 times [2024-10-24 20:27:01,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:01,362 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [611668297] [2024-10-24 20:27:01,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:01,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:01,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:01,425 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:01,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:01,431 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:01,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:01,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:01,445 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:27:01,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:01,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [611668297] [2024-10-24 20:27:01,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [611668297] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:27:01,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:27:01,447 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:27:01,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1999729973] [2024-10-24 20:27:01,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:27:01,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:27:01,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:01,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:27:01,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:27:01,450 INFO L87 Difference]: Start difference. First operand 145 states and 189 transitions. Second operand has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:27:01,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:01,496 INFO L93 Difference]: Finished difference Result 145 states and 189 transitions. [2024-10-24 20:27:01,496 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:27:01,497 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 32 [2024-10-24 20:27:01,497 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:01,499 INFO L225 Difference]: With dead ends: 145 [2024-10-24 20:27:01,499 INFO L226 Difference]: Without dead ends: 143 [2024-10-24 20:27:01,499 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 20:27:01,500 INFO L432 NwaCegarLoop]: 42 mSDtfsCounter, 57 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 20 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 69 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 20 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:01,500 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 69 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 20 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 20:27:01,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-24 20:27:01,511 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 143. [2024-10-24 20:27:01,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 143 states, 115 states have (on average 1.4608695652173913) internal successors, (168), 132 states have internal predecessors, (168), 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) [2024-10-24 20:27:01,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 143 states to 143 states and 184 transitions. [2024-10-24 20:27:01,513 INFO L78 Accepts]: Start accepts. Automaton has 143 states and 184 transitions. Word has length 32 [2024-10-24 20:27:01,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:01,513 INFO L471 AbstractCegarLoop]: Abstraction has 143 states and 184 transitions. [2024-10-24 20:27:01,514 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 7.666666666666667) internal successors, (23), 4 states have internal predecessors, (23), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:27:01,514 INFO L276 IsEmpty]: Start isEmpty. Operand 143 states and 184 transitions. [2024-10-24 20:27:01,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-10-24 20:27:01,515 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:01,515 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:01,515 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 20:27:01,515 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:01,516 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:01,516 INFO L85 PathProgramCache]: Analyzing trace with hash -1400336030, now seen corresponding path program 1 times [2024-10-24 20:27:01,516 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:01,516 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1859733570] [2024-10-24 20:27:01,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:01,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:01,533 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2078442485] [2024-10-24 20:27:01,533 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:01,533 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:01,534 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:01,536 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) [2024-10-24 20:27:01,539 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-10-24 20:27:01,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:01,583 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:27:01,585 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:01,750 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:27:01,750 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:01,947 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:01,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1859733570] [2024-10-24 20:27:01,948 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:01,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2078442485] [2024-10-24 20:27:01,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2078442485] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:01,948 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:01,948 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-24 20:27:01,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1290372181] [2024-10-24 20:27:01,949 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:01,949 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:27:01,949 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:01,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:27:01,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:27:01,950 INFO L87 Difference]: Start difference. First operand 143 states and 184 transitions. Second operand has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:27:02,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:02,085 INFO L93 Difference]: Finished difference Result 150 states and 187 transitions. [2024-10-24 20:27:02,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 20:27:02,086 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 34 [2024-10-24 20:27:02,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:02,087 INFO L225 Difference]: With dead ends: 150 [2024-10-24 20:27:02,087 INFO L226 Difference]: Without dead ends: 143 [2024-10-24 20:27:02,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:27:02,088 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 62 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 62 SdHoareTripleChecker+Valid, 65 SdHoareTripleChecker+Invalid, 134 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:02,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [62 Valid, 65 Invalid, 134 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:27:02,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 143 states. [2024-10-24 20:27:02,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 143 to 139. [2024-10-24 20:27:02,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 116 states have (on average 1.3448275862068966) internal successors, (156), 128 states have internal predecessors, (156), 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) [2024-10-24 20:27:02,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 172 transitions. [2024-10-24 20:27:02,099 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 172 transitions. Word has length 34 [2024-10-24 20:27:02,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:02,100 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 172 transitions. [2024-10-24 20:27:02,100 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.0) internal successors, (25), 6 states have internal predecessors, (25), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:27:02,100 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 172 transitions. [2024-10-24 20:27:02,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-10-24 20:27:02,102 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:02,102 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:02,123 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-10-24 20:27:02,303 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 [2024-10-24 20:27:02,303 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:02,304 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:02,304 INFO L85 PathProgramCache]: Analyzing trace with hash -460743922, now seen corresponding path program 1 times [2024-10-24 20:27:02,304 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:02,304 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1335251240] [2024-10-24 20:27:02,304 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:02,304 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:02,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:02,315 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [457642095] [2024-10-24 20:27:02,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:02,315 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:02,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:02,317 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) [2024-10-24 20:27:02,321 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-10-24 20:27:02,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:02,363 INFO L255 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-10-24 20:27:02,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:02,511 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:27:02,511 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:02,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:02,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1335251240] [2024-10-24 20:27:02,962 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:02,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [457642095] [2024-10-24 20:27:02,963 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [457642095] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:02,963 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:02,963 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2024-10-24 20:27:02,963 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [488603468] [2024-10-24 20:27:02,963 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:02,964 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 20:27:02,964 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:02,964 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 20:27:02,965 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:27:02,965 INFO L87 Difference]: Start difference. First operand 139 states and 172 transitions. Second operand has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:27:03,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:03,149 INFO L93 Difference]: Finished difference Result 187 states and 230 transitions. [2024-10-24 20:27:03,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:27:03,150 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-10-24 20:27:03,150 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:03,151 INFO L225 Difference]: With dead ends: 187 [2024-10-24 20:27:03,151 INFO L226 Difference]: Without dead ends: 184 [2024-10-24 20:27:03,151 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:27:03,152 INFO L432 NwaCegarLoop]: 38 mSDtfsCounter, 74 mSDsluCounter, 54 mSDsCounter, 0 mSdLazyCounter, 133 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 92 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 133 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:03,152 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 92 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 133 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:27:03,152 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 184 states. [2024-10-24 20:27:03,160 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 184 to 176. [2024-10-24 20:27:03,160 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 151 states have (on average 1.3311258278145695) internal successors, (201), 163 states have internal predecessors, (201), 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) [2024-10-24 20:27:03,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 221 transitions. [2024-10-24 20:27:03,162 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 221 transitions. Word has length 35 [2024-10-24 20:27:03,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:03,162 INFO L471 AbstractCegarLoop]: Abstraction has 176 states and 221 transitions. [2024-10-24 20:27:03,162 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 5.2) internal successors, (26), 6 states have internal predecessors, (26), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:27:03,163 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 221 transitions. [2024-10-24 20:27:03,163 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-10-24 20:27:03,163 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:03,163 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:03,180 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:03,367 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:03,368 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:03,368 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:03,368 INFO L85 PathProgramCache]: Analyzing trace with hash -1463971986, now seen corresponding path program 1 times [2024-10-24 20:27:03,368 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:03,369 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [89763078] [2024-10-24 20:27:03,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:03,369 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:03,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:03,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:03,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:03,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:03,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:03,463 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:03,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:03,470 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:27:03,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:03,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [89763078] [2024-10-24 20:27:03,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [89763078] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:03,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1732825151] [2024-10-24 20:27:03,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:03,472 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:03,472 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:03,473 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) [2024-10-24 20:27:03,475 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-10-24 20:27:03,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:03,517 INFO L255 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:27:03,518 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:03,622 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:27:03,623 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-10-24 20:27:03,623 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1732825151] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:27:03,623 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:03,623 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-10-24 20:27:03,624 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004324447] [2024-10-24 20:27:03,626 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:27:03,627 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:27:03,627 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:03,627 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:27:03,627 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:27:03,627 INFO L87 Difference]: Start difference. First operand 176 states and 221 transitions. Second operand has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:27:03,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:03,812 INFO L93 Difference]: Finished difference Result 176 states and 221 transitions. [2024-10-24 20:27:03,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-10-24 20:27:03,813 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-10-24 20:27:03,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:03,815 INFO L225 Difference]: With dead ends: 176 [2024-10-24 20:27:03,815 INFO L226 Difference]: Without dead ends: 174 [2024-10-24 20:27:03,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=35, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:27:03,816 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 25 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 26 SdHoareTripleChecker+Valid, 61 SdHoareTripleChecker+Invalid, 76 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:03,816 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [26 Valid, 61 Invalid, 76 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:27:03,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 174 states. [2024-10-24 20:27:03,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 174 to 171. [2024-10-24 20:27:03,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 171 states, 148 states have (on average 1.3175675675675675) internal successors, (195), 158 states have internal predecessors, (195), 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) [2024-10-24 20:27:03,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 171 states to 171 states and 215 transitions. [2024-10-24 20:27:03,827 INFO L78 Accepts]: Start accepts. Automaton has 171 states and 215 transitions. Word has length 36 [2024-10-24 20:27:03,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:03,828 INFO L471 AbstractCegarLoop]: Abstraction has 171 states and 215 transitions. [2024-10-24 20:27:03,828 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.75) internal successors, (27), 5 states have internal predecessors, (27), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:27:03,828 INFO L276 IsEmpty]: Start isEmpty. Operand 171 states and 215 transitions. [2024-10-24 20:27:03,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 38 [2024-10-24 20:27:03,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:03,829 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:03,846 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:04,029 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:04,030 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:04,030 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:04,030 INFO L85 PathProgramCache]: Analyzing trace with hash 1861508742, now seen corresponding path program 1 times [2024-10-24 20:27:04,031 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:04,031 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [553408345] [2024-10-24 20:27:04,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:04,031 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:04,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:04,198 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:04,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:04,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:04,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:04,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:04,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:04,231 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 8 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:27:04,231 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:04,231 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [553408345] [2024-10-24 20:27:04,231 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [553408345] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:04,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1463831673] [2024-10-24 20:27:04,232 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:04,232 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:04,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:04,234 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) [2024-10-24 20:27:04,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-10-24 20:27:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:04,286 INFO L255 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:27:04,287 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:04,381 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:27:04,381 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:04,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1463831673] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:04,506 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 20:27:04,506 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 3] total 11 [2024-10-24 20:27:04,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658637421] [2024-10-24 20:27:04,506 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:04,506 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:27:04,507 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:04,507 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:27:04,508 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2024-10-24 20:27:04,508 INFO L87 Difference]: Start difference. First operand 171 states and 215 transitions. Second operand has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-24 20:27:05,084 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:05,085 INFO L93 Difference]: Finished difference Result 183 states and 219 transitions. [2024-10-24 20:27:05,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2024-10-24 20:27:05,085 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 37 [2024-10-24 20:27:05,085 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:05,086 INFO L225 Difference]: With dead ends: 183 [2024-10-24 20:27:05,086 INFO L226 Difference]: Without dead ends: 168 [2024-10-24 20:27:05,087 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 76 GetRequests, 52 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 112 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=182, Invalid=468, Unknown=0, NotChecked=0, Total=650 [2024-10-24 20:27:05,087 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 130 mSDsluCounter, 83 mSDsCounter, 0 mSdLazyCounter, 275 mSolverCounterSat, 17 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 130 SdHoareTripleChecker+Valid, 101 SdHoareTripleChecker+Invalid, 292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 17 IncrementalHoareTripleChecker+Valid, 275 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:05,087 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [130 Valid, 101 Invalid, 292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [17 Valid, 275 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:27:05,088 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-10-24 20:27:05,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 162. [2024-10-24 20:27:05,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 140 states have (on average 1.25) internal successors, (175), 149 states have internal predecessors, (175), 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) [2024-10-24 20:27:05,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 195 transitions. [2024-10-24 20:27:05,098 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 195 transitions. Word has length 37 [2024-10-24 20:27:05,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:05,098 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 195 transitions. [2024-10-24 20:27:05,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 4.7272727272727275) internal successors, (52), 11 states have internal predecessors, (52), 4 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-10-24 20:27:05,098 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 195 transitions. [2024-10-24 20:27:05,099 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-24 20:27:05,099 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:05,099 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 20:27:05,118 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-10-24 20:27:05,300 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,SelfDestructingSolverStorable11 [2024-10-24 20:27:05,301 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:05,301 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:05,301 INFO L85 PathProgramCache]: Analyzing trace with hash 1872196208, now seen corresponding path program 1 times [2024-10-24 20:27:05,301 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:05,301 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251806025] [2024-10-24 20:27:05,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:05,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:05,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:05,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:05,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:05,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:05,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:05,364 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:27:05,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:05,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251806025] [2024-10-24 20:27:05,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251806025] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 20:27:05,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 20:27:05,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 20:27:05,365 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [459772807] [2024-10-24 20:27:05,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 20:27:05,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 20:27:05,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:05,366 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 20:27:05,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:27:05,367 INFO L87 Difference]: Start difference. First operand 162 states and 195 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:27:05,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:05,507 INFO L93 Difference]: Finished difference Result 163 states and 195 transitions. [2024-10-24 20:27:05,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 20:27:05,508 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 38 [2024-10-24 20:27:05,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:05,509 INFO L225 Difference]: With dead ends: 163 [2024-10-24 20:27:05,509 INFO L226 Difference]: Without dead ends: 162 [2024-10-24 20:27:05,510 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-10-24 20:27:05,510 INFO L432 NwaCegarLoop]: 30 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 85 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:05,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 85 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:27:05,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 162 states. [2024-10-24 20:27:05,517 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 162 to 162. [2024-10-24 20:27:05,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 162 states, 140 states have (on average 1.2214285714285715) internal successors, (171), 149 states have internal predecessors, (171), 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) [2024-10-24 20:27:05,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 162 states to 162 states and 191 transitions. [2024-10-24 20:27:05,519 INFO L78 Accepts]: Start accepts. Automaton has 162 states and 191 transitions. Word has length 38 [2024-10-24 20:27:05,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:05,520 INFO L471 AbstractCegarLoop]: Abstraction has 162 states and 191 transitions. [2024-10-24 20:27:05,520 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-10-24 20:27:05,520 INFO L276 IsEmpty]: Start isEmpty. Operand 162 states and 191 transitions. [2024-10-24 20:27:05,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2024-10-24 20:27:05,521 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:05,521 INFO L215 NwaCegarLoop]: trace histogram [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] [2024-10-24 20:27:05,521 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 20:27:05,521 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:05,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:05,521 INFO L85 PathProgramCache]: Analyzing trace with hash 693347430, now seen corresponding path program 1 times [2024-10-24 20:27:05,522 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:05,522 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1188540927] [2024-10-24 20:27:05,522 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:05,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:05,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:05,655 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:05,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:05,686 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:05,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:05,690 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:05,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:05,694 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 2 proven. 7 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:27:05,695 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:05,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1188540927] [2024-10-24 20:27:05,695 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1188540927] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:05,695 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [20250705] [2024-10-24 20:27:05,695 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:05,695 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:05,696 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:05,697 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) [2024-10-24 20:27:05,699 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-10-24 20:27:05,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:05,739 INFO L255 TraceCheckSpWp]: Trace formula consists of 86 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 20:27:05,741 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:05,852 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 6 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:27:05,852 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:06,295 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2024-10-24 20:27:06,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [20250705] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:06,295 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:06,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 9] total 16 [2024-10-24 20:27:06,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246731797] [2024-10-24 20:27:06,295 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:06,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 20:27:06,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:06,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 20:27:06,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=57, Invalid=215, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:27:06,297 INFO L87 Difference]: Start difference. First operand 162 states and 191 transitions. Second operand has 17 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:27:06,748 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:06,748 INFO L93 Difference]: Finished difference Result 163 states and 191 transitions. [2024-10-24 20:27:06,749 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 20:27:06,749 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) Word has length 38 [2024-10-24 20:27:06,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:06,750 INFO L225 Difference]: With dead ends: 163 [2024-10-24 20:27:06,751 INFO L226 Difference]: Without dead ends: 160 [2024-10-24 20:27:06,751 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 97 GetRequests, 68 SyntacticMatches, 5 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=159, Invalid=491, Unknown=0, NotChecked=0, Total=650 [2024-10-24 20:27:06,752 INFO L432 NwaCegarLoop]: 15 mSDtfsCounter, 121 mSDsluCounter, 116 mSDsCounter, 0 mSdLazyCounter, 259 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 121 SdHoareTripleChecker+Valid, 131 SdHoareTripleChecker+Invalid, 286 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 259 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:06,752 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [121 Valid, 131 Invalid, 286 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 259 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:27:06,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 160 states. [2024-10-24 20:27:06,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 160 to 137. [2024-10-24 20:27:06,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 119 states have (on average 1.1932773109243697) internal successors, (142), 125 states have internal predecessors, (142), 9 states have call successors, (9), 2 states have call predecessors, (9), 2 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-10-24 20:27:06,761 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 160 transitions. [2024-10-24 20:27:06,761 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 160 transitions. Word has length 38 [2024-10-24 20:27:06,761 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:06,761 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 160 transitions. [2024-10-24 20:27:06,762 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 3.25) internal successors, (52), 16 states have internal predecessors, (52), 3 states have call successors, (3), 1 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 3 states have call successors, (3) [2024-10-24 20:27:06,762 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 160 transitions. [2024-10-24 20:27:06,762 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-10-24 20:27:06,762 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:06,762 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:06,779 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-10-24 20:27:06,963 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,SelfDestructingSolverStorable13 [2024-10-24 20:27:06,963 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:06,964 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:06,964 INFO L85 PathProgramCache]: Analyzing trace with hash 18933906, now seen corresponding path program 1 times [2024-10-24 20:27:06,964 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:06,964 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1502525246] [2024-10-24 20:27:06,964 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:06,964 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:06,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:06,976 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [600660961] [2024-10-24 20:27:06,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:06,977 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:06,977 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:06,979 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) [2024-10-24 20:27:06,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-10-24 20:27:07,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:07,031 INFO L255 TraceCheckSpWp]: Trace formula consists of 87 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 20:27:07,033 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:07,219 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:27:07,219 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:07,324 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-10-24 20:27:07,324 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:07,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1502525246] [2024-10-24 20:27:07,325 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:07,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [600660961] [2024-10-24 20:27:07,325 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [600660961] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:07,325 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 20:27:07,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 10 [2024-10-24 20:27:07,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803996239] [2024-10-24 20:27:07,326 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:07,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 20:27:07,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:07,327 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 20:27:07,327 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:27:07,327 INFO L87 Difference]: Start difference. First operand 137 states and 160 transitions. Second operand has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 20:27:07,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:07,568 INFO L93 Difference]: Finished difference Result 219 states and 257 transitions. [2024-10-24 20:27:07,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 20:27:07,569 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) Word has length 39 [2024-10-24 20:27:07,569 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:07,570 INFO L225 Difference]: With dead ends: 219 [2024-10-24 20:27:07,570 INFO L226 Difference]: Without dead ends: 152 [2024-10-24 20:27:07,572 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 66 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=78, Invalid=228, Unknown=0, NotChecked=0, Total=306 [2024-10-24 20:27:07,573 INFO L432 NwaCegarLoop]: 18 mSDtfsCounter, 70 mSDsluCounter, 76 mSDsCounter, 0 mSdLazyCounter, 196 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 70 SdHoareTripleChecker+Valid, 94 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 196 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:07,573 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [70 Valid, 94 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 196 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:27:07,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 152 states. [2024-10-24 20:27:07,582 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 152 to 152. [2024-10-24 20:27:07,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 152 states, 134 states have (on average 1.1417910447761195) internal successors, (153), 139 states have internal predecessors, (153), 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) [2024-10-24 20:27:07,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 152 states to 152 states and 173 transitions. [2024-10-24 20:27:07,584 INFO L78 Accepts]: Start accepts. Automaton has 152 states and 173 transitions. Word has length 39 [2024-10-24 20:27:07,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:07,585 INFO L471 AbstractCegarLoop]: Abstraction has 152 states and 173 transitions. [2024-10-24 20:27:07,585 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 5.3) internal successors, (53), 11 states have internal predecessors, (53), 3 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 3 states have call predecessors, (4), 3 states have call successors, (4) [2024-10-24 20:27:07,585 INFO L276 IsEmpty]: Start isEmpty. Operand 152 states and 173 transitions. [2024-10-24 20:27:07,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-10-24 20:27:07,588 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:07,588 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 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] [2024-10-24 20:27:07,608 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-10-24 20:27:07,789 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,SelfDestructingSolverStorable14 [2024-10-24 20:27:07,789 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:07,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:07,789 INFO L85 PathProgramCache]: Analyzing trace with hash -1565427033, now seen corresponding path program 2 times [2024-10-24 20:27:07,790 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:07,790 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2084400497] [2024-10-24 20:27:07,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:07,790 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:07,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:07,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [538313616] [2024-10-24 20:27:07,802 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:27:07,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:07,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:07,804 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) [2024-10-24 20:27:07,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-10-24 20:27:07,848 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:27:07,848 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:07,848 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 20:27:07,850 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:07,972 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-24 20:27:07,972 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:08,305 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 22 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-10-24 20:27:08,306 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:08,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2084400497] [2024-10-24 20:27:08,306 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:08,306 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [538313616] [2024-10-24 20:27:08,306 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [538313616] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:08,306 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-10-24 20:27:08,306 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 9 [2024-10-24 20:27:08,306 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [687097350] [2024-10-24 20:27:08,306 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:08,307 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 20:27:08,307 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:08,307 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 20:27:08,307 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:27:08,308 INFO L87 Difference]: Start difference. First operand 152 states and 173 transitions. Second operand has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-24 20:27:09,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:09,066 INFO L93 Difference]: Finished difference Result 311 states and 365 transitions. [2024-10-24 20:27:09,066 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 20:27:09,066 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 55 [2024-10-24 20:27:09,067 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:09,068 INFO L225 Difference]: With dead ends: 311 [2024-10-24 20:27:09,068 INFO L226 Difference]: Without dead ends: 300 [2024-10-24 20:27:09,068 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 114 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=80, Invalid=160, Unknown=0, NotChecked=0, Total=240 [2024-10-24 20:27:09,069 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 136 mSDsluCounter, 181 mSDsCounter, 0 mSdLazyCounter, 296 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 138 SdHoareTripleChecker+Valid, 224 SdHoareTripleChecker+Invalid, 311 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 296 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:09,069 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [138 Valid, 224 Invalid, 311 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 296 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 20:27:09,070 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300 states. [2024-10-24 20:27:09,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300 to 294. [2024-10-24 20:27:09,088 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 269 states have (on average 1.1449814126394051) internal successors, (308), 273 states have internal predecessors, (308), 18 states have call successors, (18), 2 states have call predecessors, (18), 2 states have return successors, (18), 18 states have call predecessors, (18), 18 states have call successors, (18) [2024-10-24 20:27:09,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 344 transitions. [2024-10-24 20:27:09,090 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 344 transitions. Word has length 55 [2024-10-24 20:27:09,090 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:09,090 INFO L471 AbstractCegarLoop]: Abstraction has 294 states and 344 transitions. [2024-10-24 20:27:09,090 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 8.333333333333334) internal successors, (75), 10 states have internal predecessors, (75), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-24 20:27:09,090 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 344 transitions. [2024-10-24 20:27:09,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2024-10-24 20:27:09,091 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:09,091 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:09,108 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:09,292 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,SelfDestructingSolverStorable15 [2024-10-24 20:27:09,292 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:09,292 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:09,293 INFO L85 PathProgramCache]: Analyzing trace with hash 2133780327, now seen corresponding path program 1 times [2024-10-24 20:27:09,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:09,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1174353733] [2024-10-24 20:27:09,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:09,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:09,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:09,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:09,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:09,370 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:09,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:09,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:09,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:09,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:27:09,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:09,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:27:09,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:09,382 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 20:27:09,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:09,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1174353733] [2024-10-24 20:27:09,383 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1174353733] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:09,383 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [483025824] [2024-10-24 20:27:09,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:09,383 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:09,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:09,385 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) [2024-10-24 20:27:09,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-10-24 20:27:09,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:09,432 INFO L255 TraceCheckSpWp]: Trace formula consists of 124 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-10-24 20:27:09,433 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:09,482 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 20:27:09,482 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:09,547 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 0 proven. 38 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2024-10-24 20:27:09,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [483025824] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:09,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:09,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 8 [2024-10-24 20:27:09,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1253593082] [2024-10-24 20:27:09,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:09,549 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 20:27:09,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:09,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 20:27:09,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:27:09,550 INFO L87 Difference]: Start difference. First operand 294 states and 344 transitions. Second operand has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 20:27:09,691 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:09,691 INFO L93 Difference]: Finished difference Result 818 states and 1019 transitions. [2024-10-24 20:27:09,692 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 20:27:09,692 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 67 [2024-10-24 20:27:09,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:09,695 INFO L225 Difference]: With dead ends: 818 [2024-10-24 20:27:09,695 INFO L226 Difference]: Without dead ends: 816 [2024-10-24 20:27:09,696 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 146 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=36, Invalid=36, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:27:09,696 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 11 mSDsluCounter, 95 mSDsCounter, 0 mSdLazyCounter, 94 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 11 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 94 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:09,697 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [11 Valid, 121 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 94 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:27:09,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 816 states. [2024-10-24 20:27:09,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 816 to 816. [2024-10-24 20:27:09,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 816 states, 758 states have (on average 1.1174142480211082) internal successors, (847), 761 states have internal predecessors, (847), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 20:27:09,750 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 816 states to 816 states and 951 transitions. [2024-10-24 20:27:09,751 INFO L78 Accepts]: Start accepts. Automaton has 816 states and 951 transitions. Word has length 67 [2024-10-24 20:27:09,751 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:09,752 INFO L471 AbstractCegarLoop]: Abstraction has 816 states and 951 transitions. [2024-10-24 20:27:09,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.875) internal successors, (103), 9 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 20:27:09,752 INFO L276 IsEmpty]: Start isEmpty. Operand 816 states and 951 transitions. [2024-10-24 20:27:09,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-10-24 20:27:09,753 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:09,753 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 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, 1] [2024-10-24 20:27:09,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-10-24 20:27:09,953 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-10-24 20:27:09,954 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:09,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:09,954 INFO L85 PathProgramCache]: Analyzing trace with hash -385233554, now seen corresponding path program 1 times [2024-10-24 20:27:09,954 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:09,954 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [59738960] [2024-10-24 20:27:09,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:09,955 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:09,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:10,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:10,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:10,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:10,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:10,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:10,086 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:27:10,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:10,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:27:10,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:10,114 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 6 proven. 55 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2024-10-24 20:27:10,115 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:10,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [59738960] [2024-10-24 20:27:10,115 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [59738960] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:10,115 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1269269021] [2024-10-24 20:27:10,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:10,116 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:10,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:10,117 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) [2024-10-24 20:27:10,119 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-10-24 20:27:10,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:10,158 INFO L255 TraceCheckSpWp]: Trace formula consists of 141 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 20:27:10,160 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:10,351 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 4 proven. 28 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-24 20:27:10,351 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:10,585 INFO L134 CoverageAnalysis]: Checked inductivity of 71 backedges. 0 proven. 32 refuted. 0 times theorem prover too weak. 39 trivial. 0 not checked. [2024-10-24 20:27:10,585 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1269269021] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:10,586 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:10,586 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9, 9] total 18 [2024-10-24 20:27:10,586 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [580220446] [2024-10-24 20:27:10,586 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:10,586 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-10-24 20:27:10,587 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:10,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-10-24 20:27:10,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=289, Unknown=0, NotChecked=0, Total=342 [2024-10-24 20:27:10,588 INFO L87 Difference]: Start difference. First operand 816 states and 951 transitions. Second operand has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-10-24 20:27:11,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:11,540 INFO L93 Difference]: Finished difference Result 828 states and 963 transitions. [2024-10-24 20:27:11,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-10-24 20:27:11,541 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) Word has length 77 [2024-10-24 20:27:11,541 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:11,545 INFO L225 Difference]: With dead ends: 828 [2024-10-24 20:27:11,545 INFO L226 Difference]: Without dead ends: 827 [2024-10-24 20:27:11,546 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 204 GetRequests, 145 SyntacticMatches, 7 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 749 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=675, Invalid=2187, Unknown=0, NotChecked=0, Total=2862 [2024-10-24 20:27:11,547 INFO L432 NwaCegarLoop]: 12 mSDtfsCounter, 197 mSDsluCounter, 143 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 155 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:11,547 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 155 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:27:11,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 827 states. [2024-10-24 20:27:11,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 827 to 815. [2024-10-24 20:27:11,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 815 states, 758 states have (on average 1.0699208443271768) internal successors, (811), 760 states have internal predecessors, (811), 52 states have call successors, (52), 2 states have call predecessors, (52), 2 states have return successors, (52), 52 states have call predecessors, (52), 52 states have call successors, (52) [2024-10-24 20:27:11,594 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 815 states to 815 states and 915 transitions. [2024-10-24 20:27:11,594 INFO L78 Accepts]: Start accepts. Automaton has 815 states and 915 transitions. Word has length 77 [2024-10-24 20:27:11,594 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:11,594 INFO L471 AbstractCegarLoop]: Abstraction has 815 states and 915 transitions. [2024-10-24 20:27:11,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 5.722222222222222) internal successors, (103), 18 states have internal predecessors, (103), 8 states have call successors, (9), 1 states have call predecessors, (9), 3 states have return successors, (10), 8 states have call predecessors, (10), 8 states have call successors, (10) [2024-10-24 20:27:11,595 INFO L276 IsEmpty]: Start isEmpty. Operand 815 states and 915 transitions. [2024-10-24 20:27:11,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 20:27:11,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:11,599 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:11,616 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:11,799 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,SelfDestructingSolverStorable17 [2024-10-24 20:27:11,800 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:11,800 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:11,800 INFO L85 PathProgramCache]: Analyzing trace with hash -647130915, now seen corresponding path program 1 times [2024-10-24 20:27:11,801 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:11,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [232866865] [2024-10-24 20:27:11,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:11,801 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:11,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:11,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:11,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:11,895 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:11,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:11,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:11,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:11,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:27:11,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:11,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:27:11,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:11,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 20:27:11,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:11,911 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 0 proven. 68 refuted. 0 times theorem prover too weak. 40 trivial. 0 not checked. [2024-10-24 20:27:11,911 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:11,911 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [232866865] [2024-10-24 20:27:11,911 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [232866865] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:11,912 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [655108793] [2024-10-24 20:27:11,912 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:11,912 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:11,912 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:11,915 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) [2024-10-24 20:27:11,917 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-10-24 20:27:11,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:11,967 INFO L255 TraceCheckSpWp]: Trace formula consists of 162 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:27:11,969 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:12,066 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 66 proven. 24 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-10-24 20:27:12,067 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:12,162 INFO L134 CoverageAnalysis]: Checked inductivity of 108 backedges. 54 proven. 24 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-10-24 20:27:12,162 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [655108793] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:12,162 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:12,162 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 6, 6] total 10 [2024-10-24 20:27:12,162 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [392670652] [2024-10-24 20:27:12,163 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:12,163 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 20:27:12,163 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:12,164 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 20:27:12,164 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2024-10-24 20:27:12,164 INFO L87 Difference]: Start difference. First operand 815 states and 915 transitions. Second operand has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-10-24 20:27:12,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:12,569 INFO L93 Difference]: Finished difference Result 1517 states and 1701 transitions. [2024-10-24 20:27:12,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-10-24 20:27:12,569 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) Word has length 90 [2024-10-24 20:27:12,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:12,576 INFO L225 Difference]: With dead ends: 1517 [2024-10-24 20:27:12,576 INFO L226 Difference]: Without dead ends: 1277 [2024-10-24 20:27:12,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 208 GetRequests, 183 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 113 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=135, Invalid=417, Unknown=0, NotChecked=0, Total=552 [2024-10-24 20:27:12,579 INFO L432 NwaCegarLoop]: 37 mSDtfsCounter, 80 mSDsluCounter, 173 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 80 SdHoareTripleChecker+Valid, 210 SdHoareTripleChecker+Invalid, 347 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:12,579 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [80 Valid, 210 Invalid, 347 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:27:12,580 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1277 states. [2024-10-24 20:27:12,639 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1277 to 986. [2024-10-24 20:27:12,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 986 states, 919 states have (on average 1.0674646354733406) internal successors, (981), 921 states have internal predecessors, (981), 62 states have call successors, (62), 2 states have call predecessors, (62), 2 states have return successors, (62), 62 states have call predecessors, (62), 62 states have call successors, (62) [2024-10-24 20:27:12,644 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 986 states to 986 states and 1105 transitions. [2024-10-24 20:27:12,645 INFO L78 Accepts]: Start accepts. Automaton has 986 states and 1105 transitions. Word has length 90 [2024-10-24 20:27:12,645 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:12,645 INFO L471 AbstractCegarLoop]: Abstraction has 986 states and 1105 transitions. [2024-10-24 20:27:12,646 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 13.1) internal successors, (131), 10 states have internal predecessors, (131), 9 states have call successors, (11), 2 states have call predecessors, (11), 2 states have return successors, (11), 9 states have call predecessors, (11), 9 states have call successors, (11) [2024-10-24 20:27:12,646 INFO L276 IsEmpty]: Start isEmpty. Operand 986 states and 1105 transitions. [2024-10-24 20:27:12,647 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 91 [2024-10-24 20:27:12,647 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:12,647 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:12,664 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:12,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:12,849 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:12,849 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:12,849 INFO L85 PathProgramCache]: Analyzing trace with hash 1602868179, now seen corresponding path program 1 times [2024-10-24 20:27:12,849 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:12,849 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295115084] [2024-10-24 20:27:12,850 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:12,850 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:12,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:12,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:12,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:12,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:12,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:12,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:12,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:12,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:27:12,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:12,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:27:12,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:12,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 20:27:12,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:12,958 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 20:27:12,962 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:12,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295115084] [2024-10-24 20:27:12,962 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295115084] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:12,962 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1738758797] [2024-10-24 20:27:12,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:12,963 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:12,963 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:12,966 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) [2024-10-24 20:27:12,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-10-24 20:27:13,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:13,016 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-10-24 20:27:13,018 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:13,092 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 20:27:13,092 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:13,206 INFO L134 CoverageAnalysis]: Checked inductivity of 118 backedges. 0 proven. 90 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-10-24 20:27:13,207 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1738758797] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:13,207 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:13,207 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 10 [2024-10-24 20:27:13,207 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [793035963] [2024-10-24 20:27:13,208 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:13,208 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 20:27:13,209 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:13,209 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 20:27:13,209 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:27:13,210 INFO L87 Difference]: Start difference. First operand 986 states and 1105 transitions. Second operand has 11 states, 10 states have (on average 13.9) internal successors, (139), 11 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-24 20:27:13,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:13,375 INFO L93 Difference]: Finished difference Result 1593 states and 1789 transitions. [2024-10-24 20:27:13,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 20:27:13,375 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 10 states have (on average 13.9) internal successors, (139), 11 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 90 [2024-10-24 20:27:13,376 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:13,381 INFO L225 Difference]: With dead ends: 1593 [2024-10-24 20:27:13,381 INFO L226 Difference]: Without dead ends: 1592 [2024-10-24 20:27:13,382 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 195 GetRequests, 186 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=55, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:27:13,383 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 88 mSDsluCounter, 156 mSDsCounter, 0 mSdLazyCounter, 99 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 183 SdHoareTripleChecker+Invalid, 100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 99 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:13,383 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 183 Invalid, 100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 99 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:27:13,384 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1592 states. [2024-10-24 20:27:13,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1592 to 1584. [2024-10-24 20:27:13,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1479 states have (on average 1.066260987153482) internal successors, (1577), 1481 states have internal predecessors, (1577), 100 states have call successors, (100), 2 states have call predecessors, (100), 2 states have return successors, (100), 100 states have call predecessors, (100), 100 states have call successors, (100) [2024-10-24 20:27:13,484 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 1777 transitions. [2024-10-24 20:27:13,485 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 1777 transitions. Word has length 90 [2024-10-24 20:27:13,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:13,485 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 1777 transitions. [2024-10-24 20:27:13,485 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 10 states have (on average 13.9) internal successors, (139), 11 states have internal predecessors, (139), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-24 20:27:13,485 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 1777 transitions. [2024-10-24 20:27:13,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 116 [2024-10-24 20:27:13,487 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:13,487 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:13,503 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Ended with exit code 0 [2024-10-24 20:27:13,691 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:13,692 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:13,692 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:13,692 INFO L85 PathProgramCache]: Analyzing trace with hash -321833708, now seen corresponding path program 1 times [2024-10-24 20:27:13,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:13,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [314804125] [2024-10-24 20:27:13,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:13,693 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:13,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:13,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:13,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:13,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:13,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:13,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:13,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:13,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:27:13,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:13,825 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:27:13,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:13,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 20:27:13,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:13,831 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 20:27:13,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:13,834 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 47 proven. 104 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-24 20:27:13,834 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:13,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [314804125] [2024-10-24 20:27:13,835 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [314804125] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:13,835 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [539016235] [2024-10-24 20:27:13,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:13,835 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:13,835 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:13,837 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) [2024-10-24 20:27:13,840 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-10-24 20:27:13,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:13,892 INFO L255 TraceCheckSpWp]: Trace formula consists of 198 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-10-24 20:27:13,894 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:14,047 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-24 20:27:14,047 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:14,181 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 59 proven. 92 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-10-24 20:27:14,181 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [539016235] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:14,181 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:14,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 12 [2024-10-24 20:27:14,182 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314478080] [2024-10-24 20:27:14,182 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:14,182 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:27:14,182 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:14,183 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:27:14,183 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:27:14,183 INFO L87 Difference]: Start difference. First operand 1584 states and 1777 transitions. Second operand has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-24 20:27:14,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:14,551 INFO L93 Difference]: Finished difference Result 3498 states and 3921 transitions. [2024-10-24 20:27:14,551 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 20:27:14,551 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) Word has length 115 [2024-10-24 20:27:14,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:14,560 INFO L225 Difference]: With dead ends: 3498 [2024-10-24 20:27:14,561 INFO L226 Difference]: Without dead ends: 2594 [2024-10-24 20:27:14,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 252 GetRequests, 235 SyntacticMatches, 5 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=52, Invalid=130, Unknown=0, NotChecked=0, Total=182 [2024-10-24 20:27:14,565 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 30 mSDsluCounter, 321 mSDsCounter, 0 mSdLazyCounter, 522 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 380 SdHoareTripleChecker+Invalid, 524 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 522 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:14,565 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 380 Invalid, 524 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 522 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:27:14,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2594 states. [2024-10-24 20:27:14,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2594 to 1881. [2024-10-24 20:27:14,667 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1881 states, 1758 states have (on average 1.0591581342434584) internal successors, (1862), 1760 states have internal predecessors, (1862), 118 states have call successors, (118), 2 states have call predecessors, (118), 2 states have return successors, (118), 118 states have call predecessors, (118), 118 states have call successors, (118) [2024-10-24 20:27:14,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1881 states to 1881 states and 2098 transitions. [2024-10-24 20:27:14,674 INFO L78 Accepts]: Start accepts. Automaton has 1881 states and 2098 transitions. Word has length 115 [2024-10-24 20:27:14,674 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:14,674 INFO L471 AbstractCegarLoop]: Abstraction has 1881 states and 2098 transitions. [2024-10-24 20:27:14,674 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 12.083333333333334) internal successors, (145), 12 states have internal predecessors, (145), 10 states have call successors, (11), 1 states have call predecessors, (11), 1 states have return successors, (11), 10 states have call predecessors, (11), 10 states have call successors, (11) [2024-10-24 20:27:14,675 INFO L276 IsEmpty]: Start isEmpty. Operand 1881 states and 2098 transitions. [2024-10-24 20:27:14,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 20:27:14,678 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:14,679 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:14,696 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:14,879 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:14,880 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:14,880 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:14,880 INFO L85 PathProgramCache]: Analyzing trace with hash -897409821, now seen corresponding path program 2 times [2024-10-24 20:27:14,881 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:14,881 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1078422976] [2024-10-24 20:27:14,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:14,881 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:14,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:14,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [26016477] [2024-10-24 20:27:14,903 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:27:14,903 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:14,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:14,907 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) [2024-10-24 20:27:14,908 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-10-24 20:27:14,978 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:27:14,978 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:14,979 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 20:27:14,981 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:15,255 INFO L134 CoverageAnalysis]: Checked inductivity of 290 backedges. 0 proven. 186 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-10-24 20:27:15,255 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:15,867 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:15,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1078422976] [2024-10-24 20:27:15,867 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:15,867 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26016477] [2024-10-24 20:27:15,868 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26016477] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:15,868 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:15,868 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-24 20:27:15,868 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2046761845] [2024-10-24 20:27:15,868 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:15,868 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 20:27:15,868 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:15,869 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 20:27:15,869 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:27:15,869 INFO L87 Difference]: Start difference. First operand 1881 states and 2098 transitions. Second operand has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-24 20:27:16,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:16,073 INFO L93 Difference]: Finished difference Result 2108 states and 2347 transitions. [2024-10-24 20:27:16,073 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 20:27:16,074 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 135 [2024-10-24 20:27:16,074 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:16,082 INFO L225 Difference]: With dead ends: 2108 [2024-10-24 20:27:16,082 INFO L226 Difference]: Without dead ends: 2107 [2024-10-24 20:27:16,083 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 206 GetRequests, 196 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=39, Invalid=93, Unknown=0, NotChecked=0, Total=132 [2024-10-24 20:27:16,084 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 19 mSDsluCounter, 131 mSDsCounter, 0 mSdLazyCounter, 198 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 20 SdHoareTripleChecker+Valid, 177 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 198 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:16,085 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [20 Valid, 177 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 198 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:27:16,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2107 states. [2024-10-24 20:27:16,181 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2107 to 1913. [2024-10-24 20:27:16,184 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1788 states have (on average 1.058165548098434) internal successors, (1892), 1790 states have internal predecessors, (1892), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-10-24 20:27:16,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2132 transitions. [2024-10-24 20:27:16,191 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2132 transitions. Word has length 135 [2024-10-24 20:27:16,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:16,191 INFO L471 AbstractCegarLoop]: Abstraction has 1913 states and 2132 transitions. [2024-10-24 20:27:16,192 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 10.857142857142858) internal successors, (76), 8 states have internal predecessors, (76), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-24 20:27:16,192 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2132 transitions. [2024-10-24 20:27:16,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 20:27:16,194 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:16,195 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:16,212 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Ended with exit code 0 [2024-10-24 20:27:16,398 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21,18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:16,399 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:16,399 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:16,399 INFO L85 PathProgramCache]: Analyzing trace with hash -62504019, now seen corresponding path program 3 times [2024-10-24 20:27:16,399 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:16,399 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1427315998] [2024-10-24 20:27:16,399 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:16,399 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:16,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:16,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2480874] [2024-10-24 20:27:16,417 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 20:27:16,417 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:16,418 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:16,420 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) [2024-10-24 20:27:16,422 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-10-24 20:27:16,483 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2024-10-24 20:27:16,483 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:16,485 INFO L255 TraceCheckSpWp]: Trace formula consists of 201 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 20:27:16,487 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:16,683 INFO L134 CoverageAnalysis]: Checked inductivity of 286 backedges. 0 proven. 198 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-24 20:27:16,683 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:17,200 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:17,200 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1427315998] [2024-10-24 20:27:17,201 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:17,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2480874] [2024-10-24 20:27:17,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2480874] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:17,201 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:17,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2024-10-24 20:27:17,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [857134778] [2024-10-24 20:27:17,201 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:17,201 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 20:27:17,201 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:17,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 20:27:17,202 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=82, Unknown=0, NotChecked=0, Total=110 [2024-10-24 20:27:17,202 INFO L87 Difference]: Start difference. First operand 1913 states and 2132 transitions. Second operand has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-24 20:27:17,553 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:17,553 INFO L93 Difference]: Finished difference Result 2961 states and 3296 transitions. [2024-10-24 20:27:17,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2024-10-24 20:27:17,554 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) Word has length 135 [2024-10-24 20:27:17,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:17,560 INFO L225 Difference]: With dead ends: 2961 [2024-10-24 20:27:17,560 INFO L226 Difference]: Without dead ends: 2096 [2024-10-24 20:27:17,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=108, Invalid=312, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:27:17,563 INFO L432 NwaCegarLoop]: 39 mSDtfsCounter, 77 mSDsluCounter, 157 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 78 SdHoareTripleChecker+Valid, 196 SdHoareTripleChecker+Invalid, 313 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:17,563 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [78 Valid, 196 Invalid, 313 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:27:17,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2024-10-24 20:27:17,689 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 1913. [2024-10-24 20:27:17,692 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1913 states, 1788 states have (on average 1.0564876957494407) internal successors, (1889), 1790 states have internal predecessors, (1889), 120 states have call successors, (120), 2 states have call predecessors, (120), 2 states have return successors, (120), 120 states have call predecessors, (120), 120 states have call successors, (120) [2024-10-24 20:27:17,697 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1913 states to 1913 states and 2129 transitions. [2024-10-24 20:27:17,698 INFO L78 Accepts]: Start accepts. Automaton has 1913 states and 2129 transitions. Word has length 135 [2024-10-24 20:27:17,698 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:17,698 INFO L471 AbstractCegarLoop]: Abstraction has 1913 states and 2129 transitions. [2024-10-24 20:27:17,698 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 11.571428571428571) internal successors, (81), 8 states have internal predecessors, (81), 5 states have call successors, (6), 1 states have call predecessors, (6), 1 states have return successors, (6), 5 states have call predecessors, (6), 5 states have call successors, (6) [2024-10-24 20:27:17,699 INFO L276 IsEmpty]: Start isEmpty. Operand 1913 states and 2129 transitions. [2024-10-24 20:27:17,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2024-10-24 20:27:17,700 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:17,701 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:17,718 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-10-24 20:27:17,901 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:17,902 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:17,902 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:17,902 INFO L85 PathProgramCache]: Analyzing trace with hash 877639691, now seen corresponding path program 3 times [2024-10-24 20:27:17,903 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:17,903 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401068113] [2024-10-24 20:27:17,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:17,903 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:17,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:17,922 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [525564976] [2024-10-24 20:27:17,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 20:27:17,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:17,923 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:17,924 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) [2024-10-24 20:27:17,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-10-24 20:27:17,973 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-10-24 20:27:17,973 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:17,974 INFO L255 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 20:27:17,976 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:18,016 INFO L134 CoverageAnalysis]: Checked inductivity of 322 backedges. 101 proven. 5 refuted. 0 times theorem prover too weak. 216 trivial. 0 not checked. [2024-10-24 20:27:18,016 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:18,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:18,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401068113] [2024-10-24 20:27:18,296 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:18,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [525564976] [2024-10-24 20:27:18,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [525564976] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:18,297 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:18,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4] total 4 [2024-10-24 20:27:18,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1163271066] [2024-10-24 20:27:18,297 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:18,298 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 20:27:18,298 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:18,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 20:27:18,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-10-24 20:27:18,299 INFO L87 Difference]: Start difference. First operand 1913 states and 2129 transitions. Second operand has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 20:27:18,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:18,424 INFO L93 Difference]: Finished difference Result 2483 states and 2762 transitions. [2024-10-24 20:27:18,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 20:27:18,425 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 135 [2024-10-24 20:27:18,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:18,430 INFO L225 Difference]: With dead ends: 2483 [2024-10-24 20:27:18,431 INFO L226 Difference]: Without dead ends: 1519 [2024-10-24 20:27:18,433 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 140 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-10-24 20:27:18,433 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 14 mSDsluCounter, 64 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 93 SdHoareTripleChecker+Invalid, 73 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:18,434 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 93 Invalid, 73 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 20:27:18,435 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1519 states. [2024-10-24 20:27:18,522 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1519 to 1518. [2024-10-24 20:27:18,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1518 states, 1417 states have (on average 1.0515172900494) internal successors, (1490), 1419 states have internal predecessors, (1490), 96 states have call successors, (96), 2 states have call predecessors, (96), 2 states have return successors, (96), 96 states have call predecessors, (96), 96 states have call successors, (96) [2024-10-24 20:27:18,527 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1518 states to 1518 states and 1682 transitions. [2024-10-24 20:27:18,528 INFO L78 Accepts]: Start accepts. Automaton has 1518 states and 1682 transitions. Word has length 135 [2024-10-24 20:27:18,528 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:18,529 INFO L471 AbstractCegarLoop]: Abstraction has 1518 states and 1682 transitions. [2024-10-24 20:27:18,529 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 11.0) internal successors, (44), 5 states have internal predecessors, (44), 2 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-10-24 20:27:18,529 INFO L276 IsEmpty]: Start isEmpty. Operand 1518 states and 1682 transitions. [2024-10-24 20:27:18,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 148 [2024-10-24 20:27:18,531 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:18,531 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:18,548 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:18,735 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23,20 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:18,736 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:18,736 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:18,736 INFO L85 PathProgramCache]: Analyzing trace with hash -272784989, now seen corresponding path program 2 times [2024-10-24 20:27:18,736 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:18,736 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636309355] [2024-10-24 20:27:18,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:18,736 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:18,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:18,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:18,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:18,897 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:18,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:18,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:18,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:18,903 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:27:18,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:18,907 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:27:18,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:18,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 20:27:18,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:18,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 20:27:18,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:18,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 20:27:18,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:18,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 20:27:18,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:18,923 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-24 20:27:18,923 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:18,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636309355] [2024-10-24 20:27:18,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1636309355] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:18,923 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1139618256] [2024-10-24 20:27:18,923 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:27:18,924 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:18,924 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:18,925 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) [2024-10-24 20:27:18,927 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-10-24 20:27:18,994 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:27:18,994 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:18,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-10-24 20:27:18,998 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:19,119 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-24 20:27:19,119 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:19,334 INFO L134 CoverageAnalysis]: Checked inductivity of 394 backedges. 0 proven. 306 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-24 20:27:19,334 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1139618256] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:19,334 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:19,334 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 16 [2024-10-24 20:27:19,334 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1878961019] [2024-10-24 20:27:19,334 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:19,335 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-10-24 20:27:19,335 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:19,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-10-24 20:27:19,336 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:27:19,336 INFO L87 Difference]: Start difference. First operand 1518 states and 1682 transitions. Second operand has 17 states, 16 states have (on average 13.9375) internal successors, (223), 17 states have internal predecessors, (223), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-24 20:27:19,630 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:19,630 INFO L93 Difference]: Finished difference Result 2799 states and 3202 transitions. [2024-10-24 20:27:19,631 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-10-24 20:27:19,631 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 13.9375) internal successors, (223), 17 states have internal predecessors, (223), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 147 [2024-10-24 20:27:19,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:19,640 INFO L225 Difference]: With dead ends: 2799 [2024-10-24 20:27:19,640 INFO L226 Difference]: Without dead ends: 2798 [2024-10-24 20:27:19,642 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=136, Unknown=0, NotChecked=0, Total=272 [2024-10-24 20:27:19,642 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 17 mSDsluCounter, 150 mSDsCounter, 0 mSdLazyCounter, 162 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 176 SdHoareTripleChecker+Invalid, 167 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 162 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:19,643 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 176 Invalid, 167 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 162 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:27:19,645 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2798 states. [2024-10-24 20:27:19,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2798 to 2798. [2024-10-24 20:27:19,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2798 states, 2617 states have (on average 1.0584638899503247) internal successors, (2770), 2619 states have internal predecessors, (2770), 176 states have call successors, (176), 2 states have call predecessors, (176), 2 states have return successors, (176), 176 states have call predecessors, (176), 176 states have call successors, (176) [2024-10-24 20:27:19,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2798 states to 2798 states and 3122 transitions. [2024-10-24 20:27:19,823 INFO L78 Accepts]: Start accepts. Automaton has 2798 states and 3122 transitions. Word has length 147 [2024-10-24 20:27:19,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:19,823 INFO L471 AbstractCegarLoop]: Abstraction has 2798 states and 3122 transitions. [2024-10-24 20:27:19,824 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 13.9375) internal successors, (223), 17 states have internal predecessors, (223), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-24 20:27:19,824 INFO L276 IsEmpty]: Start isEmpty. Operand 2798 states and 3122 transitions. [2024-10-24 20:27:19,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-10-24 20:27:19,827 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:19,827 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 5, 5, 5, 5, 5, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:19,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:20,028 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,SelfDestructingSolverStorable24 [2024-10-24 20:27:20,028 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:20,028 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:20,028 INFO L85 PathProgramCache]: Analyzing trace with hash -1350152142, now seen corresponding path program 4 times [2024-10-24 20:27:20,029 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:20,029 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554105486] [2024-10-24 20:27:20,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:20,029 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:20,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:20,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:20,213 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:20,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:20,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:20,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:27:20,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:20,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:27:20,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:20,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 20:27:20,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:20,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 20:27:20,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:20,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 20:27:20,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:20,233 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 20:27:20,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:20,237 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 83 proven. 234 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-24 20:27:20,237 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:20,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554105486] [2024-10-24 20:27:20,237 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554105486] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:20,237 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140819410] [2024-10-24 20:27:20,237 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 20:27:20,237 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:20,237 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:20,240 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) [2024-10-24 20:27:20,241 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-10-24 20:27:20,307 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 20:27:20,308 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:20,309 INFO L255 TraceCheckSpWp]: Trace formula consists of 254 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-10-24 20:27:20,311 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:20,539 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-24 20:27:20,539 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:20,714 INFO L134 CoverageAnalysis]: Checked inductivity of 405 backedges. 109 proven. 208 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2024-10-24 20:27:20,714 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140819410] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:20,714 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:20,714 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 15 [2024-10-24 20:27:20,714 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [318499331] [2024-10-24 20:27:20,714 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:20,715 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-10-24 20:27:20,715 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:20,716 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-10-24 20:27:20,716 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2024-10-24 20:27:20,716 INFO L87 Difference]: Start difference. First operand 2798 states and 3122 transitions. Second operand has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 20:27:21,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:21,265 INFO L93 Difference]: Finished difference Result 6157 states and 6882 transitions. [2024-10-24 20:27:21,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 20:27:21,266 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 155 [2024-10-24 20:27:21,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:21,280 INFO L225 Difference]: With dead ends: 6157 [2024-10-24 20:27:21,281 INFO L226 Difference]: Without dead ends: 4475 [2024-10-24 20:27:21,285 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 339 GetRequests, 316 SyntacticMatches, 7 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 111 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=224, Unknown=0, NotChecked=0, Total=306 [2024-10-24 20:27:21,286 INFO L432 NwaCegarLoop]: 74 mSDtfsCounter, 25 mSDsluCounter, 432 mSDsCounter, 0 mSdLazyCounter, 757 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 506 SdHoareTripleChecker+Invalid, 759 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 757 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:21,286 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 506 Invalid, 759 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 757 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:27:21,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4475 states. [2024-10-24 20:27:21,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4475 to 3136. [2024-10-24 20:27:21,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3136 states, 2934 states have (on average 1.0541922290388548) internal successors, (3093), 2936 states have internal predecessors, (3093), 197 states have call successors, (197), 2 states have call predecessors, (197), 2 states have return successors, (197), 197 states have call predecessors, (197), 197 states have call successors, (197) [2024-10-24 20:27:21,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3136 states to 3136 states and 3487 transitions. [2024-10-24 20:27:21,477 INFO L78 Accepts]: Start accepts. Automaton has 3136 states and 3487 transitions. Word has length 155 [2024-10-24 20:27:21,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:21,477 INFO L471 AbstractCegarLoop]: Abstraction has 3136 states and 3487 transitions. [2024-10-24 20:27:21,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 12.666666666666666) internal successors, (190), 15 states have internal predecessors, (190), 13 states have call successors, (14), 1 states have call predecessors, (14), 1 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 20:27:21,478 INFO L276 IsEmpty]: Start isEmpty. Operand 3136 states and 3487 transitions. [2024-10-24 20:27:21,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-24 20:27:21,481 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:21,481 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 6, 6, 6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:21,498 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Ended with exit code 0 [2024-10-24 20:27:21,681 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 22 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-10-24 20:27:21,683 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:21,684 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:21,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1131873023, now seen corresponding path program 5 times [2024-10-24 20:27:21,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:21,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1675154639] [2024-10-24 20:27:21,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:21,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:21,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:21,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [625423355] [2024-10-24 20:27:21,709 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 20:27:21,710 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:21,710 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:21,711 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:27:21,712 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-10-24 20:27:21,795 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 9 check-sat command(s) [2024-10-24 20:27:21,796 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:21,798 INFO L255 TraceCheckSpWp]: Trace formula consists of 282 conjuncts, 35 conjuncts are in the unsatisfiable core [2024-10-24 20:27:21,800 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:22,499 INFO L134 CoverageAnalysis]: Checked inductivity of 540 backedges. 12 proven. 433 refuted. 0 times theorem prover too weak. 95 trivial. 0 not checked. [2024-10-24 20:27:22,500 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:22,856 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:22,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1675154639] [2024-10-24 20:27:22,856 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:22,856 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [625423355] [2024-10-24 20:27:22,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [625423355] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:22,857 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:22,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-10-24 20:27:22,857 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2051799548] [2024-10-24 20:27:22,857 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:22,858 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-10-24 20:27:22,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:22,858 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-10-24 20:27:22,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=79, Invalid=427, Unknown=0, NotChecked=0, Total=506 [2024-10-24 20:27:22,859 INFO L87 Difference]: Start difference. First operand 3136 states and 3487 transitions. Second operand has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 20 states have internal predecessors, (134), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-24 20:27:23,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:23,676 INFO L93 Difference]: Finished difference Result 5299 states and 5897 transitions. [2024-10-24 20:27:23,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 20:27:23,678 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 20 states have internal predecessors, (134), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) Word has length 175 [2024-10-24 20:27:23,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:23,690 INFO L225 Difference]: With dead ends: 5299 [2024-10-24 20:27:23,690 INFO L226 Difference]: Without dead ends: 3442 [2024-10-24 20:27:23,694 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 187 GetRequests, 165 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=88, Invalid=464, Unknown=0, NotChecked=0, Total=552 [2024-10-24 20:27:23,694 INFO L432 NwaCegarLoop]: 55 mSDtfsCounter, 23 mSDsluCounter, 447 mSDsCounter, 0 mSdLazyCounter, 1584 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 502 SdHoareTripleChecker+Invalid, 1585 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 1584 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:23,695 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 502 Invalid, 1585 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 1584 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 20:27:23,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3442 states. [2024-10-24 20:27:23,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3442 to 3200. [2024-10-24 20:27:23,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3200 states, 2994 states have (on average 1.0531062124248498) internal successors, (3153), 2996 states have internal predecessors, (3153), 201 states have call successors, (201), 2 states have call predecessors, (201), 2 states have return successors, (201), 201 states have call predecessors, (201), 201 states have call successors, (201) [2024-10-24 20:27:23,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3200 states to 3200 states and 3555 transitions. [2024-10-24 20:27:23,898 INFO L78 Accepts]: Start accepts. Automaton has 3200 states and 3555 transitions. Word has length 175 [2024-10-24 20:27:23,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:23,898 INFO L471 AbstractCegarLoop]: Abstraction has 3200 states and 3555 transitions. [2024-10-24 20:27:23,899 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 7.052631578947368) internal successors, (134), 20 states have internal predecessors, (134), 9 states have call successors, (10), 1 states have call predecessors, (10), 2 states have return successors, (10), 9 states have call predecessors, (10), 9 states have call successors, (10) [2024-10-24 20:27:23,899 INFO L276 IsEmpty]: Start isEmpty. Operand 3200 states and 3555 transitions. [2024-10-24 20:27:23,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2024-10-24 20:27:23,903 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:23,903 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:23,920 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:24,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-10-24 20:27:24,104 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:24,104 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:24,104 INFO L85 PathProgramCache]: Analyzing trace with hash 1708308629, now seen corresponding path program 6 times [2024-10-24 20:27:24,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:24,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612287751] [2024-10-24 20:27:24,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:24,105 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:24,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:24,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1854752374] [2024-10-24 20:27:24,129 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 20:27:24,129 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:24,129 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:24,131 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:27:24,132 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-10-24 20:27:24,211 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 8 check-sat command(s) [2024-10-24 20:27:24,211 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:24,218 INFO L255 TraceCheckSpWp]: Trace formula consists of 260 conjuncts, 28 conjuncts are in the unsatisfiable core [2024-10-24 20:27:24,221 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:25,076 INFO L134 CoverageAnalysis]: Checked inductivity of 524 backedges. 24 proven. 404 refuted. 0 times theorem prover too weak. 96 trivial. 0 not checked. [2024-10-24 20:27:25,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:25,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:25,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612287751] [2024-10-24 20:27:25,436 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:25,436 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1854752374] [2024-10-24 20:27:25,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1854752374] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:25,436 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:25,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15] total 15 [2024-10-24 20:27:25,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079631485] [2024-10-24 20:27:25,436 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:25,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-10-24 20:27:25,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:25,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-10-24 20:27:25,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=52, Invalid=290, Unknown=0, NotChecked=0, Total=342 [2024-10-24 20:27:25,437 INFO L87 Difference]: Start difference. First operand 3200 states and 3555 transitions. Second operand has 16 states, 15 states have (on average 8.066666666666666) internal successors, (121), 16 states have internal predecessors, (121), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 20:27:26,121 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:26,122 INFO L93 Difference]: Finished difference Result 3701 states and 4112 transitions. [2024-10-24 20:27:26,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-10-24 20:27:26,122 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 8.066666666666666) internal successors, (121), 16 states have internal predecessors, (121), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) Word has length 175 [2024-10-24 20:27:26,122 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:26,134 INFO L225 Difference]: With dead ends: 3701 [2024-10-24 20:27:26,134 INFO L226 Difference]: Without dead ends: 3699 [2024-10-24 20:27:26,136 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 192 GetRequests, 169 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=96, Invalid=504, Unknown=0, NotChecked=0, Total=600 [2024-10-24 20:27:26,136 INFO L432 NwaCegarLoop]: 46 mSDtfsCounter, 54 mSDsluCounter, 371 mSDsCounter, 0 mSdLazyCounter, 1141 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 56 SdHoareTripleChecker+Valid, 417 SdHoareTripleChecker+Invalid, 1148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 1141 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:26,136 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [56 Valid, 417 Invalid, 1148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 1141 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 20:27:26,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3699 states. [2024-10-24 20:27:26,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3699 to 3246. [2024-10-24 20:27:26,317 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3246 states, 3038 states have (on average 1.0526662277814351) internal successors, (3198), 3040 states have internal predecessors, (3198), 203 states have call successors, (203), 2 states have call predecessors, (203), 2 states have return successors, (203), 203 states have call predecessors, (203), 203 states have call successors, (203) [2024-10-24 20:27:26,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3246 states to 3246 states and 3604 transitions. [2024-10-24 20:27:26,326 INFO L78 Accepts]: Start accepts. Automaton has 3246 states and 3604 transitions. Word has length 175 [2024-10-24 20:27:26,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:26,326 INFO L471 AbstractCegarLoop]: Abstraction has 3246 states and 3604 transitions. [2024-10-24 20:27:26,326 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 8.066666666666666) internal successors, (121), 16 states have internal predecessors, (121), 8 states have call successors, (9), 1 states have call predecessors, (9), 2 states have return successors, (9), 7 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 20:27:26,327 INFO L276 IsEmpty]: Start isEmpty. Operand 3246 states and 3604 transitions. [2024-10-24 20:27:26,329 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 191 [2024-10-24 20:27:26,329 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:26,329 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:26,346 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Ended with exit code 0 [2024-10-24 20:27:26,533 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27,24 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:26,534 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr9ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:26,534 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:26,534 INFO L85 PathProgramCache]: Analyzing trace with hash 1824792118, now seen corresponding path program 2 times [2024-10-24 20:27:26,534 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:26,534 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946927685] [2024-10-24 20:27:26,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:26,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:26,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:26,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:26,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:27:26,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:27:26,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 20:27:26,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 20:27:26,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 20:27:26,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 20:27:26,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 20:27:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 20:27:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:26,786 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-24 20:27:26,786 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:26,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946927685] [2024-10-24 20:27:26,786 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946927685] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:26,786 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [445705342] [2024-10-24 20:27:26,786 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:27:26,786 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:26,786 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:26,788 INFO L229 MonitoredProcess]: Starting monitored process 25 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:27:26,790 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Waiting until timeout for monitored process [2024-10-24 20:27:26,862 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:27:26,863 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:26,864 INFO L255 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 10 conjuncts are in the unsatisfiable core [2024-10-24 20:27:26,868 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:27,032 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-24 20:27:27,033 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:27,313 INFO L134 CoverageAnalysis]: Checked inductivity of 708 backedges. 0 proven. 560 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-24 20:27:27,313 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [445705342] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:27,314 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:27,314 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10, 10] total 20 [2024-10-24 20:27:27,314 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1707793309] [2024-10-24 20:27:27,314 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:27,315 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-10-24 20:27:27,315 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:27,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-10-24 20:27:27,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:27:27,316 INFO L87 Difference]: Start difference. First operand 3246 states and 3604 transitions. Second operand has 21 states, 20 states have (on average 14.45) internal successors, (289), 21 states have internal predecessors, (289), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-10-24 20:27:27,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:27,729 INFO L93 Difference]: Finished difference Result 6615 states and 7374 transitions. [2024-10-24 20:27:27,729 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-10-24 20:27:27,729 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 14.45) internal successors, (289), 21 states have internal predecessors, (289), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) Word has length 190 [2024-10-24 20:27:27,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:27,744 INFO L225 Difference]: With dead ends: 6615 [2024-10-24 20:27:27,744 INFO L226 Difference]: Without dead ends: 6614 [2024-10-24 20:27:27,746 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 410 GetRequests, 391 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=210, Unknown=0, NotChecked=0, Total=420 [2024-10-24 20:27:27,746 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 257 mSDsluCounter, 293 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 257 SdHoareTripleChecker+Valid, 320 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:27,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [257 Valid, 320 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:27:27,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6614 states. [2024-10-24 20:27:28,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6614 to 6596. [2024-10-24 20:27:28,105 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6596 states, 6178 states have (on average 1.053415344771771) internal successors, (6508), 6180 states have internal predecessors, (6508), 413 states have call successors, (413), 2 states have call predecessors, (413), 2 states have return successors, (413), 413 states have call predecessors, (413), 413 states have call successors, (413) [2024-10-24 20:27:28,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6596 states to 6596 states and 7334 transitions. [2024-10-24 20:27:28,117 INFO L78 Accepts]: Start accepts. Automaton has 6596 states and 7334 transitions. Word has length 190 [2024-10-24 20:27:28,117 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:28,118 INFO L471 AbstractCegarLoop]: Abstraction has 6596 states and 7334 transitions. [2024-10-24 20:27:28,118 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 14.45) internal successors, (289), 21 states have internal predecessors, (289), 20 states have call successors, (21), 1 states have call predecessors, (21), 1 states have return successors, (21), 20 states have call predecessors, (21), 20 states have call successors, (21) [2024-10-24 20:27:28,118 INFO L276 IsEmpty]: Start isEmpty. Operand 6596 states and 7334 transitions. [2024-10-24 20:27:28,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-10-24 20:27:28,121 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:28,121 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 7, 7, 7, 7, 7, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:28,138 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (25)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:28,325 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 25 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-10-24 20:27:28,326 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:28,327 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:28,327 INFO L85 PathProgramCache]: Analyzing trace with hash -2046102192, now seen corresponding path program 7 times [2024-10-24 20:27:28,327 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:28,327 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1605961560] [2024-10-24 20:27:28,327 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:28,328 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:28,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,556 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2024-10-24 20:27:28,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,557 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2024-10-24 20:27:28,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,558 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-10-24 20:27:28,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,561 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2024-10-24 20:27:28,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,564 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-10-24 20:27:28,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-10-24 20:27:28,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2024-10-24 20:27:28,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 119 [2024-10-24 20:27:28,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 20:27:28,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-10-24 20:27:28,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2024-10-24 20:27:28,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,579 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 135 proven. 412 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-24 20:27:28,579 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:28,579 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1605961560] [2024-10-24 20:27:28,579 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1605961560] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:28,580 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [158398478] [2024-10-24 20:27:28,580 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 20:27:28,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:28,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:28,581 INFO L229 MonitoredProcess]: Starting monitored process 26 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:27:28,582 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Waiting until timeout for monitored process [2024-10-24 20:27:28,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:28,648 INFO L255 TraceCheckSpWp]: Trace formula consists of 310 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-10-24 20:27:28,651 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:28,935 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-24 20:27:28,935 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:29,183 INFO L134 CoverageAnalysis]: Checked inductivity of 695 backedges. 175 proven. 372 refuted. 0 times theorem prover too weak. 148 trivial. 0 not checked. [2024-10-24 20:27:29,184 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [158398478] provided 0 perfect and 2 imperfect interpolant sequences [2024-10-24 20:27:29,184 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-10-24 20:27:29,184 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12, 12] total 18 [2024-10-24 20:27:29,184 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441042901] [2024-10-24 20:27:29,185 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:29,185 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-10-24 20:27:29,185 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:29,186 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-10-24 20:27:29,186 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=81, Invalid=225, Unknown=0, NotChecked=0, Total=306 [2024-10-24 20:27:29,186 INFO L87 Difference]: Start difference. First operand 6596 states and 7334 transitions. Second operand has 18 states, 18 states have (on average 13.055555555555555) internal successors, (235), 18 states have internal predecessors, (235), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-24 20:27:30,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:30,202 INFO L93 Difference]: Finished difference Result 14760 states and 16447 transitions. [2024-10-24 20:27:30,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 20:27:30,202 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 13.055555555555555) internal successors, (235), 18 states have internal predecessors, (235), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) Word has length 195 [2024-10-24 20:27:30,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:30,224 INFO L225 Difference]: With dead ends: 14760 [2024-10-24 20:27:30,224 INFO L226 Difference]: Without dead ends: 10688 [2024-10-24 20:27:30,232 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 426 GetRequests, 397 SyntacticMatches, 9 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 188 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=119, Invalid=343, Unknown=0, NotChecked=0, Total=462 [2024-10-24 20:27:30,233 INFO L432 NwaCegarLoop]: 88 mSDtfsCounter, 25 mSDsluCounter, 482 mSDsCounter, 0 mSdLazyCounter, 930 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 570 SdHoareTripleChecker+Invalid, 932 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 930 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:30,233 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 570 Invalid, 932 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 930 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 20:27:30,239 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10688 states. [2024-10-24 20:27:30,615 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10688 to 7709. [2024-10-24 20:27:30,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7709 states, 7222 states have (on average 1.048047632234838) internal successors, (7569), 7224 states have internal predecessors, (7569), 482 states have call successors, (482), 2 states have call predecessors, (482), 2 states have return successors, (482), 482 states have call predecessors, (482), 482 states have call successors, (482) [2024-10-24 20:27:30,631 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7709 states to 7709 states and 8533 transitions. [2024-10-24 20:27:30,635 INFO L78 Accepts]: Start accepts. Automaton has 7709 states and 8533 transitions. Word has length 195 [2024-10-24 20:27:30,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:30,636 INFO L471 AbstractCegarLoop]: Abstraction has 7709 states and 8533 transitions. [2024-10-24 20:27:30,636 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 13.055555555555555) internal successors, (235), 18 states have internal predecessors, (235), 16 states have call successors, (17), 1 states have call predecessors, (17), 1 states have return successors, (17), 16 states have call predecessors, (17), 16 states have call successors, (17) [2024-10-24 20:27:30,636 INFO L276 IsEmpty]: Start isEmpty. Operand 7709 states and 8533 transitions. [2024-10-24 20:27:30,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2024-10-24 20:27:30,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:30,639 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 6, 6, 6, 6, 6, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:30,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (26)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:30,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,26 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:30,844 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:30,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:30,844 INFO L85 PathProgramCache]: Analyzing trace with hash -40826342, now seen corresponding path program 8 times [2024-10-24 20:27:30,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:30,845 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1022442217] [2024-10-24 20:27:30,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:30,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:30,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:30,866 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [248825367] [2024-10-24 20:27:30,866 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:27:30,866 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:30,866 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:30,868 INFO L229 MonitoredProcess]: Starting monitored process 27 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:27:30,869 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Waiting until timeout for monitored process [2024-10-24 20:27:30,936 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:27:30,936 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:30,939 INFO L255 TraceCheckSpWp]: Trace formula consists of 313 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-10-24 20:27:30,942 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:31,338 INFO L134 CoverageAnalysis]: Checked inductivity of 679 backedges. 0 proven. 451 refuted. 0 times theorem prover too weak. 228 trivial. 0 not checked. [2024-10-24 20:27:31,339 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:39,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:39,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1022442217] [2024-10-24 20:27:39,635 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:39,635 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [248825367] [2024-10-24 20:27:39,635 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [248825367] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:39,635 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:39,635 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2024-10-24 20:27:39,635 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188740283] [2024-10-24 20:27:39,636 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:39,636 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 20:27:39,636 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:39,637 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 20:27:39,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=130, Unknown=2, NotChecked=0, Total=182 [2024-10-24 20:27:39,638 INFO L87 Difference]: Start difference. First operand 7709 states and 8533 transitions. Second operand has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-24 20:27:40,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:40,100 INFO L93 Difference]: Finished difference Result 8316 states and 9200 transitions. [2024-10-24 20:27:40,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 20:27:40,101 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) Word has length 195 [2024-10-24 20:27:40,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:40,117 INFO L225 Difference]: With dead ends: 8316 [2024-10-24 20:27:40,117 INFO L226 Difference]: Without dead ends: 8315 [2024-10-24 20:27:40,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 326 GetRequests, 314 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 7.9s TimeCoverageRelationStatistics Valid=50, Invalid=130, Unknown=2, NotChecked=0, Total=182 [2024-10-24 20:27:40,121 INFO L432 NwaCegarLoop]: 59 mSDtfsCounter, 20 mSDsluCounter, 279 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 338 SdHoareTripleChecker+Invalid, 408 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:40,122 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 338 Invalid, 408 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 20:27:40,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8315 states. [2024-10-24 20:27:40,551 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8315 to 8019. [2024-10-24 20:27:40,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8019 states, 7513 states have (on average 1.0476507387195528) internal successors, (7871), 7515 states have internal predecessors, (7871), 501 states have call successors, (501), 2 states have call predecessors, (501), 2 states have return successors, (501), 501 states have call predecessors, (501), 501 states have call successors, (501) [2024-10-24 20:27:40,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8019 states to 8019 states and 8873 transitions. [2024-10-24 20:27:40,633 INFO L78 Accepts]: Start accepts. Automaton has 8019 states and 8873 transitions. Word has length 195 [2024-10-24 20:27:40,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:40,634 INFO L471 AbstractCegarLoop]: Abstraction has 8019 states and 8873 transitions. [2024-10-24 20:27:40,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 8 states have (on average 12.0) internal successors, (96), 9 states have internal predecessors, (96), 6 states have call successors, (7), 1 states have call predecessors, (7), 1 states have return successors, (7), 6 states have call predecessors, (7), 6 states have call successors, (7) [2024-10-24 20:27:40,635 INFO L276 IsEmpty]: Start isEmpty. Operand 8019 states and 8873 transitions. [2024-10-24 20:27:40,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-10-24 20:27:40,639 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:40,639 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 8, 8, 8, 8, 8, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:40,656 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (27)] Ended with exit code 0 [2024-10-24 20:27:40,843 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 27 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable30 [2024-10-24 20:27:40,844 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:40,844 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:40,844 INFO L85 PathProgramCache]: Analyzing trace with hash 959833887, now seen corresponding path program 9 times [2024-10-24 20:27:40,844 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:40,844 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [62596718] [2024-10-24 20:27:40,844 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:40,845 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:40,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:40,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1000171186] [2024-10-24 20:27:40,878 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-10-24 20:27:40,878 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:40,878 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:40,880 INFO L229 MonitoredProcess]: Starting monitored process 28 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:27:40,882 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Waiting until timeout for monitored process [2024-10-24 20:27:40,994 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 7 check-sat command(s) [2024-10-24 20:27:40,994 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:40,996 INFO L255 TraceCheckSpWp]: Trace formula consists of 226 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-10-24 20:27:41,000 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:41,419 INFO L134 CoverageAnalysis]: Checked inductivity of 870 backedges. 0 proven. 542 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-10-24 20:27:41,419 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:41,761 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:41,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [62596718] [2024-10-24 20:27:41,762 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:41,762 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1000171186] [2024-10-24 20:27:41,762 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1000171186] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:41,762 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:41,762 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-10-24 20:27:41,762 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1630063421] [2024-10-24 20:27:41,762 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:41,763 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 20:27:41,763 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:41,763 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 20:27:41,763 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=122, Unknown=0, NotChecked=0, Total=156 [2024-10-24 20:27:41,764 INFO L87 Difference]: Start difference. First operand 8019 states and 8873 transitions. Second operand has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-24 20:27:42,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:42,521 INFO L93 Difference]: Finished difference Result 12814 states and 14201 transitions. [2024-10-24 20:27:42,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2024-10-24 20:27:42,522 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) Word has length 215 [2024-10-24 20:27:42,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:42,542 INFO L225 Difference]: With dead ends: 12814 [2024-10-24 20:27:42,543 INFO L226 Difference]: Without dead ends: 8583 [2024-10-24 20:27:42,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 237 GetRequests, 215 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=106, Invalid=446, Unknown=0, NotChecked=0, Total=552 [2024-10-24 20:27:42,551 INFO L432 NwaCegarLoop]: 75 mSDtfsCounter, 132 mSDsluCounter, 378 mSDsCounter, 0 mSdLazyCounter, 878 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 453 SdHoareTripleChecker+Invalid, 889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 878 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:42,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 453 Invalid, 889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 878 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 20:27:42,558 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8583 states. [2024-10-24 20:27:42,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8583 to 8106. [2024-10-24 20:27:42,977 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8106 states, 7595 states have (on average 1.0471362738643846) internal successors, (7953), 7597 states have internal predecessors, (7953), 506 states have call successors, (506), 2 states have call predecessors, (506), 2 states have return successors, (506), 506 states have call predecessors, (506), 506 states have call successors, (506) [2024-10-24 20:27:42,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8106 states to 8106 states and 8965 transitions. [2024-10-24 20:27:42,992 INFO L78 Accepts]: Start accepts. Automaton has 8106 states and 8965 transitions. Word has length 215 [2024-10-24 20:27:42,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:42,992 INFO L471 AbstractCegarLoop]: Abstraction has 8106 states and 8965 transitions. [2024-10-24 20:27:42,992 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 11.777777777777779) internal successors, (106), 10 states have internal predecessors, (106), 7 states have call successors, (8), 1 states have call predecessors, (8), 1 states have return successors, (8), 7 states have call predecessors, (8), 7 states have call successors, (8) [2024-10-24 20:27:42,993 INFO L276 IsEmpty]: Start isEmpty. Operand 8106 states and 8965 transitions. [2024-10-24 20:27:42,995 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2024-10-24 20:27:42,995 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:42,996 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:43,002 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (28)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:43,199 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,28 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:43,200 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:43,200 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:43,200 INFO L85 PathProgramCache]: Analyzing trace with hash 1476535677, now seen corresponding path program 10 times [2024-10-24 20:27:43,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:43,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [397531074] [2024-10-24 20:27:43,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:43,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:43,223 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1844133295] [2024-10-24 20:27:43,224 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-10-24 20:27:43,224 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:43,224 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:43,225 INFO L229 MonitoredProcess]: Starting monitored process 29 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:27:43,227 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Waiting until timeout for monitored process [2024-10-24 20:27:43,334 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-10-24 20:27:43,334 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:43,335 INFO L255 TraceCheckSpWp]: Trace formula consists of 347 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-10-24 20:27:43,338 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:43,875 INFO L134 CoverageAnalysis]: Checked inductivity of 834 backedges. 12 proven. 602 refuted. 0 times theorem prover too weak. 220 trivial. 0 not checked. [2024-10-24 20:27:43,875 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:44,140 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:44,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [397531074] [2024-10-24 20:27:44,140 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:44,140 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1844133295] [2024-10-24 20:27:44,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1844133295] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:44,140 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:44,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2024-10-24 20:27:44,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1091424919] [2024-10-24 20:27:44,140 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:44,141 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 20:27:44,141 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:44,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 20:27:44,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=164, Unknown=0, NotChecked=0, Total=210 [2024-10-24 20:27:44,141 INFO L87 Difference]: Start difference. First operand 8106 states and 8965 transitions. Second operand has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 20:27:44,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:44,915 INFO L93 Difference]: Finished difference Result 8796 states and 9725 transitions. [2024-10-24 20:27:44,916 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-10-24 20:27:44,916 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) Word has length 215 [2024-10-24 20:27:44,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:44,934 INFO L225 Difference]: With dead ends: 8796 [2024-10-24 20:27:44,934 INFO L226 Difference]: Without dead ends: 8795 [2024-10-24 20:27:44,937 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 239 GetRequests, 213 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 123 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=189, Invalid=567, Unknown=0, NotChecked=0, Total=756 [2024-10-24 20:27:44,937 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 74 mSDsluCounter, 299 mSDsCounter, 0 mSdLazyCounter, 573 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 75 SdHoareTripleChecker+Valid, 343 SdHoareTripleChecker+Invalid, 579 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 573 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:44,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [75 Valid, 343 Invalid, 579 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 573 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-10-24 20:27:44,941 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8795 states. [2024-10-24 20:27:45,472 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8795 to 8457. [2024-10-24 20:27:45,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8457 states, 7924 states have (on average 1.046693589096416) internal successors, (8294), 7926 states have internal predecessors, (8294), 528 states have call successors, (528), 2 states have call predecessors, (528), 2 states have return successors, (528), 528 states have call predecessors, (528), 528 states have call successors, (528) [2024-10-24 20:27:45,499 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8457 states to 8457 states and 9350 transitions. [2024-10-24 20:27:45,503 INFO L78 Accepts]: Start accepts. Automaton has 8457 states and 9350 transitions. Word has length 215 [2024-10-24 20:27:45,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:45,504 INFO L471 AbstractCegarLoop]: Abstraction has 8457 states and 9350 transitions. [2024-10-24 20:27:45,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 11.909090909090908) internal successors, (131), 12 states have internal predecessors, (131), 8 states have call successors, (9), 1 states have call predecessors, (9), 1 states have return successors, (9), 8 states have call predecessors, (9), 8 states have call successors, (9) [2024-10-24 20:27:45,505 INFO L276 IsEmpty]: Start isEmpty. Operand 8457 states and 9350 transitions. [2024-10-24 20:27:45,512 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-24 20:27:45,513 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:45,513 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 10, 10, 10, 10, 10, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:45,521 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (29)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:45,717 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable32,29 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:45,719 INFO L396 AbstractCegarLoop]: === Iteration 34 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:45,719 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:45,719 INFO L85 PathProgramCache]: Analyzing trace with hash -1980277955, now seen corresponding path program 11 times [2024-10-24 20:27:45,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:45,719 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [589819374] [2024-10-24 20:27:45,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:45,720 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:45,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:45,760 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1787432499] [2024-10-24 20:27:45,760 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-10-24 20:27:45,760 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:45,760 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:45,762 INFO L229 MonitoredProcess]: Starting monitored process 30 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:27:45,764 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Waiting until timeout for monitored process [2024-10-24 20:27:45,883 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 13 check-sat command(s) [2024-10-24 20:27:45,883 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:45,886 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 46 conjuncts are in the unsatisfiable core [2024-10-24 20:27:45,891 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:46,816 INFO L134 CoverageAnalysis]: Checked inductivity of 1280 backedges. 18 proven. 1027 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 20:27:46,816 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:47,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:47,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [589819374] [2024-10-24 20:27:47,156 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:47,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1787432499] [2024-10-24 20:27:47,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1787432499] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:47,156 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:47,156 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25] total 25 [2024-10-24 20:27:47,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [836384986] [2024-10-24 20:27:47,156 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:47,157 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-10-24 20:27:47,157 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:47,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-10-24 20:27:47,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=710, Unknown=0, NotChecked=0, Total=812 [2024-10-24 20:27:47,158 INFO L87 Difference]: Start difference. First operand 8457 states and 9350 transitions. Second operand has 26 states, 25 states have (on average 7.76) internal successors, (194), 26 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 20:27:48,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:48,638 INFO L93 Difference]: Finished difference Result 13017 states and 14418 transitions. [2024-10-24 20:27:48,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-10-24 20:27:48,638 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 25 states have (on average 7.76) internal successors, (194), 26 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 255 [2024-10-24 20:27:48,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:48,654 INFO L225 Difference]: With dead ends: 13017 [2024-10-24 20:27:48,654 INFO L226 Difference]: Without dead ends: 8795 [2024-10-24 20:27:48,662 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 267 GetRequests, 239 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=111, Invalid=759, Unknown=0, NotChecked=0, Total=870 [2024-10-24 20:27:48,663 INFO L432 NwaCegarLoop]: 73 mSDtfsCounter, 23 mSDsluCounter, 882 mSDsCounter, 0 mSdLazyCounter, 3323 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 955 SdHoareTripleChecker+Invalid, 3325 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 3323 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:48,663 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 955 Invalid, 3325 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 3323 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 20:27:48,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8795 states. [2024-10-24 20:27:49,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8795 to 8477. [2024-10-24 20:27:49,130 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8477 states, 7943 states have (on average 1.0465818960090645) internal successors, (8313), 7945 states have internal predecessors, (8313), 529 states have call successors, (529), 2 states have call predecessors, (529), 2 states have return successors, (529), 529 states have call predecessors, (529), 529 states have call successors, (529) [2024-10-24 20:27:49,142 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8477 states to 8477 states and 9371 transitions. [2024-10-24 20:27:49,145 INFO L78 Accepts]: Start accepts. Automaton has 8477 states and 9371 transitions. Word has length 255 [2024-10-24 20:27:49,146 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:49,146 INFO L471 AbstractCegarLoop]: Abstraction has 8477 states and 9371 transitions. [2024-10-24 20:27:49,146 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 25 states have (on average 7.76) internal successors, (194), 26 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 20:27:49,146 INFO L276 IsEmpty]: Start isEmpty. Operand 8477 states and 9371 transitions. [2024-10-24 20:27:49,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-24 20:27:49,150 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:49,150 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 9, 9, 9, 9, 9, 3, 3, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:49,168 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (30)] Forceful destruction successful, exit code 0 [2024-10-24 20:27:49,354 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable33,30 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:49,355 INFO L396 AbstractCegarLoop]: === Iteration 35 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:49,355 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:49,355 INFO L85 PathProgramCache]: Analyzing trace with hash 1511663367, now seen corresponding path program 12 times [2024-10-24 20:27:49,355 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:49,355 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1529281961] [2024-10-24 20:27:49,355 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:49,356 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:49,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:49,386 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1120915885] [2024-10-24 20:27:49,387 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-10-24 20:27:49,387 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:49,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:49,389 INFO L229 MonitoredProcess]: Starting monitored process 31 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:27:49,390 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Waiting until timeout for monitored process [2024-10-24 20:27:49,524 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 11 check-sat command(s) [2024-10-24 20:27:49,524 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:27:49,526 INFO L255 TraceCheckSpWp]: Trace formula consists of 341 conjuncts, 48 conjuncts are in the unsatisfiable core [2024-10-24 20:27:49,529 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:51,057 INFO L134 CoverageAnalysis]: Checked inductivity of 1252 backedges. 57 proven. 960 refuted. 0 times theorem prover too weak. 235 trivial. 0 not checked. [2024-10-24 20:27:51,057 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:27:51,698 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:27:51,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1529281961] [2024-10-24 20:27:51,698 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:27:51,698 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1120915885] [2024-10-24 20:27:51,699 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1120915885] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:27:51,699 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:27:51,699 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28] total 28 [2024-10-24 20:27:51,699 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1077295584] [2024-10-24 20:27:51,699 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:27:51,699 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-10-24 20:27:51,699 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:27:51,700 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-10-24 20:27:51,700 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=934, Unknown=0, NotChecked=0, Total=1056 [2024-10-24 20:27:51,700 INFO L87 Difference]: Start difference. First operand 8477 states and 9371 transitions. Second operand has 29 states, 28 states have (on average 5.857142857142857) internal successors, (164), 29 states have internal predecessors, (164), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-24 20:27:55,376 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.11s for a HTC check with result VALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-10-24 20:27:57,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:27:57,904 INFO L93 Difference]: Finished difference Result 12722 states and 14093 transitions. [2024-10-24 20:27:57,905 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2024-10-24 20:27:57,905 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 28 states have (on average 5.857142857142857) internal successors, (164), 29 states have internal predecessors, (164), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) Word has length 255 [2024-10-24 20:27:57,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:27:57,916 INFO L225 Difference]: With dead ends: 12722 [2024-10-24 20:27:57,916 INFO L226 Difference]: Without dead ends: 8714 [2024-10-24 20:27:57,925 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 235 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 548 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=344, Invalid=2518, Unknown=0, NotChecked=0, Total=2862 [2024-10-24 20:27:57,925 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 232 mSDsluCounter, 789 mSDsCounter, 0 mSdLazyCounter, 3729 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 841 SdHoareTripleChecker+Invalid, 3762 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 3729 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.8s IncrementalHoareTripleChecker+Time [2024-10-24 20:27:57,925 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 841 Invalid, 3762 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 3729 Invalid, 0 Unknown, 0 Unchecked, 4.8s Time] [2024-10-24 20:27:57,930 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8714 states. [2024-10-24 20:27:58,309 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8714 to 8470. [2024-10-24 20:27:58,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8470 states, 7936 states have (on average 1.0463709677419355) internal successors, (8304), 7938 states have internal predecessors, (8304), 529 states have call successors, (529), 2 states have call predecessors, (529), 2 states have return successors, (529), 529 states have call predecessors, (529), 529 states have call successors, (529) [2024-10-24 20:27:58,323 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8470 states to 8470 states and 9362 transitions. [2024-10-24 20:27:58,326 INFO L78 Accepts]: Start accepts. Automaton has 8470 states and 9362 transitions. Word has length 255 [2024-10-24 20:27:58,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:27:58,326 INFO L471 AbstractCegarLoop]: Abstraction has 8470 states and 9362 transitions. [2024-10-24 20:27:58,327 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 28 states have (on average 5.857142857142857) internal successors, (164), 29 states have internal predecessors, (164), 11 states have call successors, (12), 1 states have call predecessors, (12), 2 states have return successors, (13), 11 states have call predecessors, (13), 11 states have call successors, (13) [2024-10-24 20:27:58,327 INFO L276 IsEmpty]: Start isEmpty. Operand 8470 states and 9362 transitions. [2024-10-24 20:27:58,330 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-24 20:27:58,330 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:27:58,330 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 8, 8, 8, 8, 8, 4, 4, 4, 4, 4, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:27:58,348 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (31)] Ended with exit code 0 [2024-10-24 20:27:58,531 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 31 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable34 [2024-10-24 20:27:58,531 INFO L396 AbstractCegarLoop]: === Iteration 36 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:27:58,531 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:27:58,531 INFO L85 PathProgramCache]: Analyzing trace with hash -1673825583, now seen corresponding path program 13 times [2024-10-24 20:27:58,532 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:27:58,532 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27593398] [2024-10-24 20:27:58,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:27:58,532 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:27:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:27:58,570 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [849407481] [2024-10-24 20:27:58,570 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-10-24 20:27:58,570 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:27:58,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:27:58,572 INFO L229 MonitoredProcess]: Starting monitored process 32 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:27:58,574 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Waiting until timeout for monitored process [2024-10-24 20:27:58,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 20:27:58,666 INFO L255 TraceCheckSpWp]: Trace formula consists of 400 conjuncts, 71 conjuncts are in the unsatisfiable core [2024-10-24 20:27:58,670 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:27:59,821 INFO L134 CoverageAnalysis]: Checked inductivity of 1232 backedges. 63 proven. 982 refuted. 0 times theorem prover too weak. 187 trivial. 0 not checked. [2024-10-24 20:27:59,821 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-10-24 20:28:00,317 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 20:28:00,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27593398] [2024-10-24 20:28:00,317 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-10-24 20:28:00,317 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [849407481] [2024-10-24 20:28:00,317 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [849407481] provided 0 perfect and 1 imperfect interpolant sequences [2024-10-24 20:28:00,317 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-10-24 20:28:00,317 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31] total 31 [2024-10-24 20:28:00,317 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2019147105] [2024-10-24 20:28:00,317 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-10-24 20:28:00,318 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 32 states [2024-10-24 20:28:00,318 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 20:28:00,318 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 32 interpolants. [2024-10-24 20:28:00,319 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=96, Invalid=1094, Unknown=0, NotChecked=0, Total=1190 [2024-10-24 20:28:00,319 INFO L87 Difference]: Start difference. First operand 8470 states and 9362 transitions. Second operand has 32 states, 31 states have (on average 6.258064516129032) internal successors, (194), 32 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 20:28:02,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 20:28:02,658 INFO L93 Difference]: Finished difference Result 13520 states and 14959 transitions. [2024-10-24 20:28:02,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2024-10-24 20:28:02,658 INFO L78 Accepts]: Start accepts. Automaton has has 32 states, 31 states have (on average 6.258064516129032) internal successors, (194), 32 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) Word has length 255 [2024-10-24 20:28:02,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 20:28:02,674 INFO L225 Difference]: With dead ends: 13520 [2024-10-24 20:28:02,674 INFO L226 Difference]: Without dead ends: 8167 [2024-10-24 20:28:02,683 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 284 GetRequests, 233 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 288 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=226, Invalid=2530, Unknown=0, NotChecked=0, Total=2756 [2024-10-24 20:28:02,684 INFO L432 NwaCegarLoop]: 52 mSDtfsCounter, 128 mSDsluCounter, 970 mSDsCounter, 0 mSdLazyCounter, 4989 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 1022 SdHoareTripleChecker+Invalid, 5005 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 4989 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-10-24 20:28:02,684 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 1022 Invalid, 5005 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 4989 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-10-24 20:28:02,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8167 states. [2024-10-24 20:28:03,074 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8167 to 7969. [2024-10-24 20:28:03,081 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7969 states, 7466 states have (on average 1.0455397803375301) internal successors, (7806), 7468 states have internal predecessors, (7806), 498 states have call successors, (498), 2 states have call predecessors, (498), 2 states have return successors, (498), 498 states have call predecessors, (498), 498 states have call successors, (498) [2024-10-24 20:28:03,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7969 states to 7969 states and 8802 transitions. [2024-10-24 20:28:03,097 INFO L78 Accepts]: Start accepts. Automaton has 7969 states and 8802 transitions. Word has length 255 [2024-10-24 20:28:03,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 20:28:03,098 INFO L471 AbstractCegarLoop]: Abstraction has 7969 states and 8802 transitions. [2024-10-24 20:28:03,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 32 states, 31 states have (on average 6.258064516129032) internal successors, (194), 32 states have internal predecessors, (194), 13 states have call successors, (14), 1 states have call predecessors, (14), 2 states have return successors, (14), 13 states have call predecessors, (14), 13 states have call successors, (14) [2024-10-24 20:28:03,098 INFO L276 IsEmpty]: Start isEmpty. Operand 7969 states and 8802 transitions. [2024-10-24 20:28:03,101 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2024-10-24 20:28:03,101 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 20:28:03,102 INFO L215 NwaCegarLoop]: trace histogram [13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 20:28:03,119 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (32)] Ended with exit code 0 [2024-10-24 20:28:03,302 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 32 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable35 [2024-10-24 20:28:03,302 INFO L396 AbstractCegarLoop]: === Iteration 37 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 17 more)] === [2024-10-24 20:28:03,303 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 20:28:03,303 INFO L85 PathProgramCache]: Analyzing trace with hash 847022693, now seen corresponding path program 14 times [2024-10-24 20:28:03,303 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 20:28:03,303 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964493447] [2024-10-24 20:28:03,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 20:28:03,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 20:28:03,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-10-24 20:28:03,336 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1140913649] [2024-10-24 20:28:03,336 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-10-24 20:28:03,336 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-10-24 20:28:03,336 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 20:28:03,338 INFO L229 MonitoredProcess]: Starting monitored process 33 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-10-24 20:28:03,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (33)] Waiting until timeout for monitored process [2024-10-24 20:28:03,425 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-10-24 20:28:03,425 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-10-24 20:28:03,428 INFO L255 TraceCheckSpWp]: Trace formula consists of 406 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-10-24 20:28:03,431 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-10-24 20:28:03,964 INFO L134 CoverageAnalysis]: Checked inductivity of 1216 backedges. 0 proven. 888 refuted. 0 times theorem prover too weak. 328 trivial. 0 not checked. [2024-10-24 20:28:03,964 INFO L311 TraceCheckSpWp]: Computing backward predicates...