./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c --full-output --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a9b967e5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/certificate-witnesses-artifact/automizer/data/config -Xmx15G -Xms4m -jar /storage/repos/certificate-witnesses-artifact/automizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/certificate-witnesses-artifact/automizer/data -tc /storage/repos/certificate-witnesses-artifact/automizer/config/AutomizerReach.xml -i ../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c -s /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/certificate-witnesses-artifact/automizer --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2f79720b54b4b9430b2efff386b59c4cac88edea0ef8f0ba223c5daccad25b87 --procedureinliner.inline.calls.to.implemented.procedures NEVER --traceabstraction.positions.where.we.compute.the.hoare.annotation All --witnessprinter.yaml.format.version 2.1 --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true --- Real Ultimate output --- This is Ultimate 0.2.4-dev-a9b967e-m [2024-09-12 18:04:55,434 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 18:04:55,521 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 18:04:55,527 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 18:04:55,527 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 18:04:55,556 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 18:04:55,559 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 18:04:55,560 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 18:04:55,560 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 18:04:55,561 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 18:04:55,562 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 18:04:55,562 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 18:04:55,563 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 18:04:55,564 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 18:04:55,567 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 18:04:55,568 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 18:04:55,568 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 18:04:55,568 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 18:04:55,569 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 18:04:55,569 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 18:04:55,569 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 18:04:55,570 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 18:04:55,570 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 18:04:55,570 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 18:04:55,570 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 18:04:55,571 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 18:04:55,571 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 18:04:55,571 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 18:04:55,571 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 18:04:55,572 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 18:04:55,572 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 18:04:55,572 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 18:04:55,572 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:04:55,573 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 18:04:55,573 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 18:04:55,577 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 18:04:55,577 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 18:04:55,578 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 18:04:55,578 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 18:04:55,578 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 18:04:55,578 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 18:04:55,579 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 18:04:55,579 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/certificate-witnesses-artifact/automizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2f79720b54b4b9430b2efff386b59c4cac88edea0ef8f0ba223c5daccad25b87 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 18:04:55,916 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 18:04:55,936 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 18:04:55,938 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 18:04:55,940 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 18:04:55,940 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 18:04:55,941 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-09-12 18:04:57,487 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 18:04:57,686 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 18:04:57,686 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c [2024-09-12 18:04:57,693 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/c8133a69e/6a49c94d64bf4eee8c9975171177f547/FLAGc44943471 [2024-09-12 18:04:57,704 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/c8133a69e/6a49c94d64bf4eee8c9975171177f547 [2024-09-12 18:04:57,706 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 18:04:57,708 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 18:04:57,709 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 18:04:57,709 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 18:04:57,716 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 18:04:57,718 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:57,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5930a7bd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57, skipping insertion in model container [2024-09-12 18:04:57,720 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:57,740 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 18:04:57,936 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2024-09-12 18:04:57,942 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:04:57,956 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 18:04:57,974 WARN L247 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/loop-lit/gsv2008.c.i.v+lhb-reducer.c[1238,1251] [2024-09-12 18:04:57,980 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 18:04:57,996 INFO L204 MainTranslator]: Completed translation [2024-09-12 18:04:57,997 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57 WrapperNode [2024-09-12 18:04:57,997 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 18:04:57,999 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 18:04:58,000 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 18:04:58,000 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 18:04:58,007 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,014 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,021 INFO L138 Inliner]: procedures = 14, calls = 7, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 18:04:58,022 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 18:04:58,023 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 18:04:58,023 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 18:04:58,023 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 18:04:58,034 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,034 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,037 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,061 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]. [2024-09-12 18:04:58,062 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,063 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,065 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,071 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,071 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,072 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,073 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 18:04:58,075 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 18:04:58,076 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 18:04:58,076 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 18:04:58,077 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (1/1) ... [2024-09-12 18:04:58,083 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 18:04:58,095 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:04:58,115 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-09-12 18:04:58,124 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-09-12 18:04:58,169 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 18:04:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 18:04:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 18:04:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 18:04:58,170 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 18:04:58,170 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 18:04:58,171 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 18:04:58,171 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 18:04:58,250 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 18:04:58,252 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 18:04:58,440 INFO L? ?]: Removed 24 outVars from TransFormulas that were not future-live. [2024-09-12 18:04:58,440 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 18:04:58,470 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 18:04:58,473 INFO L318 CfgBuilder]: Removed 0 assume(true) statements. [2024-09-12 18:04:58,474 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:04:58 BoogieIcfgContainer [2024-09-12 18:04:58,474 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 18:04:58,477 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 18:04:58,477 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 18:04:58,482 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 18:04:58,482 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 06:04:57" (1/3) ... [2024-09-12 18:04:58,483 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb28470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:04:58, skipping insertion in model container [2024-09-12 18:04:58,484 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 06:04:57" (2/3) ... [2024-09-12 18:04:58,486 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7bb28470 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 06:04:58, skipping insertion in model container [2024-09-12 18:04:58,486 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 06:04:58" (3/3) ... [2024-09-12 18:04:58,488 INFO L112 eAbstractionObserver]: Analyzing ICFG gsv2008.c.i.v+lhb-reducer.c [2024-09-12 18:04:58,505 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 18:04:58,506 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 9 error locations. [2024-09-12 18:04:58,577 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 18:04:58,586 INFO L336 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=All, 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;@48adc6e9, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 18:04:58,588 INFO L337 AbstractCegarLoop]: Starting to check reachability of 9 error locations. [2024-09-12 18:04:58,593 INFO L276 IsEmpty]: Start isEmpty. Operand has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 28 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 18:04:58,602 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2024-09-12 18:04:58,603 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:04:58,603 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:04:58,604 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:04:58,609 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:58,611 INFO L85 PathProgramCache]: Analyzing trace with hash 1351206084, now seen corresponding path program 1 times [2024-09-12 18:04:58,621 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:04:58,622 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967052950] [2024-09-12 18:04:58,622 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:04:58,623 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:04:58,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:58,930 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:04:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:58,953 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:04:58,954 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:04:58,954 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967052950] [2024-09-12 18:04:58,955 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [967052950] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:04:58,955 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:04:58,955 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:04:58,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1666293222] [2024-09-12 18:04:58,957 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:04:58,961 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:04:58,961 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:04:58,989 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:04:58,990 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:04:58,992 INFO L87 Difference]: Start difference. First operand has 33 states, 19 states have (on average 1.736842105263158) internal successors, (33), 28 states have internal predecessors, (33), 2 states have call successors, (2), 2 states have call predecessors, (2), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Second operand has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:04:59,166 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2024-09-12 18:04:59,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:04:59,169 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 9 [2024-09-12 18:04:59,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:04:59,176 INFO L225 Difference]: With dead ends: 41 [2024-09-12 18:04:59,176 INFO L226 Difference]: Without dead ends: 28 [2024-09-12 18:04:59,179 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:04:59,182 INFO L434 NwaCegarLoop]: 19 mSDtfsCounter, 23 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 23 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 74 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:04:59,183 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [23 Valid, 41 Invalid, 74 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:04:59,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-09-12 18:04:59,220 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-09-12 18:04:59,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 24 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,223 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2024-09-12 18:04:59,226 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 9 [2024-09-12 18:04:59,226 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:04:59,226 INFO L474 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2024-09-12 18:04:59,226 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 1.5) internal successors, (6), 4 states have internal predecessors, (6), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,227 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:59,228 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2024-09-12 18:04:59,228 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 18:04:59,228 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:04:59,228 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:04:59,229 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 18:04:59,229 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:04:59,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:59,231 INFO L85 PathProgramCache]: Analyzing trace with hash -1062284306, now seen corresponding path program 1 times [2024-09-12 18:04:59,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:04:59,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1893699983] [2024-09-12 18:04:59,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:04:59,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:04:59,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:59,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:04:59,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:59,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:04:59,338 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:04:59,339 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1893699983] [2024-09-12 18:04:59,339 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1893699983] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:04:59,339 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:04:59,339 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:04:59,339 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519062483] [2024-09-12 18:04:59,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:04:59,340 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:04:59,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:04:59,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:04:59,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:04:59,344 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:04:59,424 INFO L93 Difference]: Finished difference Result 28 states and 28 transitions. [2024-09-12 18:04:59,425 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:04:59,425 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 10 [2024-09-12 18:04:59,425 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:04:59,426 INFO L225 Difference]: With dead ends: 28 [2024-09-12 18:04:59,427 INFO L226 Difference]: Without dead ends: 27 [2024-09-12 18:04:59,427 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:04:59,429 INFO L434 NwaCegarLoop]: 16 mSDtfsCounter, 9 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 42 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 43 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 42 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:04:59,432 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 23 Invalid, 43 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 42 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:04:59,433 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-09-12 18:04:59,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-09-12 18:04:59,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 17 states have (on average 1.411764705882353) internal successors, (24), 23 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2024-09-12 18:04:59,464 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 10 [2024-09-12 18:04:59,464 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:04:59,464 INFO L474 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2024-09-12 18:04:59,465 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.3333333333333335) internal successors, (7), 3 states have internal predecessors, (7), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,465 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:59,466 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2024-09-12 18:04:59,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2024-09-12 18:04:59,467 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:04:59,467 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:04:59,467 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 18:04:59,467 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:04:59,468 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:59,468 INFO L85 PathProgramCache]: Analyzing trace with hash 1428924934, now seen corresponding path program 1 times [2024-09-12 18:04:59,468 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:04:59,469 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1517228239] [2024-09-12 18:04:59,469 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:04:59,469 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:04:59,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:59,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:04:59,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:59,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:04:59,595 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:04:59,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1517228239] [2024-09-12 18:04:59,596 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1517228239] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:04:59,596 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:04:59,596 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:04:59,596 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493387064] [2024-09-12 18:04:59,596 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:04:59,596 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:04:59,597 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:04:59,597 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:04:59,598 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:04:59,598 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:04:59,733 INFO L93 Difference]: Finished difference Result 27 states and 27 transitions. [2024-09-12 18:04:59,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:04:59,734 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 11 [2024-09-12 18:04:59,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:04:59,735 INFO L225 Difference]: With dead ends: 27 [2024-09-12 18:04:59,735 INFO L226 Difference]: Without dead ends: 25 [2024-09-12 18:04:59,735 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:04:59,737 INFO L434 NwaCegarLoop]: 7 mSDtfsCounter, 14 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 38 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 38 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:04:59,737 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 13 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 38 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:04:59,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-09-12 18:04:59,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-09-12 18:04:59,758 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 17 states have (on average 1.2941176470588236) internal successors, (22), 21 states have internal predecessors, (22), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,758 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 25 transitions. [2024-09-12 18:04:59,762 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 25 transitions. Word has length 11 [2024-09-12 18:04:59,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:04:59,763 INFO L474 AbstractCegarLoop]: Abstraction has 25 states and 25 transitions. [2024-09-12 18:04:59,763 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,764 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:59,764 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 25 transitions. [2024-09-12 18:04:59,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2024-09-12 18:04:59,764 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:04:59,765 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:04:59,765 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 18:04:59,765 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:04:59,765 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:59,766 INFO L85 PathProgramCache]: Analyzing trace with hash 1347000048, now seen corresponding path program 1 times [2024-09-12 18:04:59,766 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:04:59,768 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677018168] [2024-09-12 18:04:59,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:04:59,768 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:04:59,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:59,835 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:04:59,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:04:59,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:04:59,849 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:04:59,849 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677018168] [2024-09-12 18:04:59,849 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677018168] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:04:59,850 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:04:59,850 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 18:04:59,850 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [328898745] [2024-09-12 18:04:59,850 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:04:59,851 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:04:59,851 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:04:59,852 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:04:59,854 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 18:04:59,854 INFO L87 Difference]: Start difference. First operand 25 states and 25 transitions. Second operand has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:04:59,931 INFO L93 Difference]: Finished difference Result 25 states and 25 transitions. [2024-09-12 18:04:59,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:04:59,934 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 12 [2024-09-12 18:04:59,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:04:59,935 INFO L225 Difference]: With dead ends: 25 [2024-09-12 18:04:59,935 INFO L226 Difference]: Without dead ends: 24 [2024-09-12 18:04:59,936 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:04:59,937 INFO L434 NwaCegarLoop]: 15 mSDtfsCounter, 7 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 35 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 36 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 35 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:04:59,937 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 23 Invalid, 36 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 35 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:04:59,938 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2024-09-12 18:04:59,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2024-09-12 18:04:59,946 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 17 states have (on average 1.2352941176470589) internal successors, (21), 20 states have internal predecessors, (21), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 24 transitions. [2024-09-12 18:04:59,947 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 24 transitions. Word has length 12 [2024-09-12 18:04:59,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:04:59,947 INFO L474 AbstractCegarLoop]: Abstraction has 24 states and 24 transitions. [2024-09-12 18:04:59,948 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 3.0) internal successors, (9), 3 states have internal predecessors, (9), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:04:59,948 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:59,948 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 24 transitions. [2024-09-12 18:04:59,949 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2024-09-12 18:04:59,949 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:04:59,949 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:04:59,949 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 18:04:59,950 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:04:59,950 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:04:59,950 INFO L85 PathProgramCache]: Analyzing trace with hash 599039146, now seen corresponding path program 1 times [2024-09-12 18:04:59,951 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:04:59,951 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [326332661] [2024-09-12 18:04:59,951 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:04:59,951 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:04:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:00,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:00,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:00,085 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:00,087 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:00,087 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [326332661] [2024-09-12 18:05:00,087 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [326332661] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:05:00,087 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:05:00,087 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:05:00,088 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859718980] [2024-09-12 18:05:00,088 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:05:00,088 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:05:00,088 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:00,089 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:05:00,090 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:05:00,091 INFO L87 Difference]: Start difference. First operand 24 states and 24 transitions. Second operand has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,222 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:00,222 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2024-09-12 18:05:00,223 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:05:00,223 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2024-09-12 18:05:00,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:00,224 INFO L225 Difference]: With dead ends: 29 [2024-09-12 18:05:00,225 INFO L226 Difference]: Without dead ends: 28 [2024-09-12 18:05:00,225 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:05:00,228 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 19 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 65 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 19 SdHoareTripleChecker+Valid, 32 SdHoareTripleChecker+Invalid, 68 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 65 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:00,229 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [19 Valid, 32 Invalid, 68 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 65 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:05:00,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-09-12 18:05:00,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-09-12 18:05:00,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.25) internal successors, (25), 23 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,242 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2024-09-12 18:05:00,243 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 15 [2024-09-12 18:05:00,243 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:00,243 INFO L474 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2024-09-12 18:05:00,243 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.0) internal successors, (12), 6 states have internal predecessors, (12), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,243 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:00,244 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2024-09-12 18:05:00,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:05:00,244 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:00,244 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:00,244 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-09-12 18:05:00,245 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:00,245 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:00,245 INFO L85 PathProgramCache]: Analyzing trace with hash 1390354367, now seen corresponding path program 1 times [2024-09-12 18:05:00,245 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:00,245 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2103989554] [2024-09-12 18:05:00,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:00,246 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:00,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:00,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:00,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:00,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:00,363 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:00,363 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2103989554] [2024-09-12 18:05:00,363 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2103989554] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:05:00,363 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:05:00,363 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-09-12 18:05:00,363 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [406742252] [2024-09-12 18:05:00,363 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:05:00,364 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:05:00,364 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:00,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:05:00,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:05:00,366 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,458 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:00,458 INFO L93 Difference]: Finished difference Result 31 states and 32 transitions. [2024-09-12 18:05:00,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:05:00,459 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-09-12 18:05:00,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:00,460 INFO L225 Difference]: With dead ends: 31 [2024-09-12 18:05:00,460 INFO L226 Difference]: Without dead ends: 28 [2024-09-12 18:05:00,461 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-09-12 18:05:00,461 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 9 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 41 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:00,462 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 41 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:05:00,463 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-09-12 18:05:00,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2024-09-12 18:05:00,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 20 states have (on average 1.2) internal successors, (24), 23 states have internal predecessors, (24), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 27 transitions. [2024-09-12 18:05:00,470 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 27 transitions. Word has length 16 [2024-09-12 18:05:00,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:00,471 INFO L474 AbstractCegarLoop]: Abstraction has 27 states and 27 transitions. [2024-09-12 18:05:00,471 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 1.8571428571428572) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,471 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:00,471 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 27 transitions. [2024-09-12 18:05:00,472 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2024-09-12 18:05:00,472 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:00,472 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:00,472 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 18:05:00,472 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:00,472 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:00,473 INFO L85 PathProgramCache]: Analyzing trace with hash 1390344405, now seen corresponding path program 1 times [2024-09-12 18:05:00,473 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:00,473 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [904846986] [2024-09-12 18:05:00,473 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:00,473 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:00,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:00,540 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:00,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:00,547 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:00,548 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:00,548 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [904846986] [2024-09-12 18:05:00,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [904846986] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:05:00,549 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:05:00,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 18:05:00,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1837791997] [2024-09-12 18:05:00,549 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:05:00,550 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-09-12 18:05:00,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:00,551 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-09-12 18:05:00,551 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-09-12 18:05:00,552 INFO L87 Difference]: Start difference. First operand 27 states and 27 transitions. Second operand has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:00,657 INFO L93 Difference]: Finished difference Result 29 states and 29 transitions. [2024-09-12 18:05:00,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 18:05:00,658 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 16 [2024-09-12 18:05:00,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:00,659 INFO L225 Difference]: With dead ends: 29 [2024-09-12 18:05:00,659 INFO L226 Difference]: Without dead ends: 28 [2024-09-12 18:05:00,659 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 18:05:00,660 INFO L434 NwaCegarLoop]: 12 mSDtfsCounter, 9 mSDsluCounter, 28 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 86 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:00,660 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 40 Invalid, 86 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:05:00,661 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2024-09-12 18:05:00,675 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 28. [2024-09-12 18:05:00,676 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 28 states, 21 states have (on average 1.1904761904761905) internal successors, (25), 24 states have internal predecessors, (25), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,677 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 28 transitions. [2024-09-12 18:05:00,677 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 28 transitions. Word has length 16 [2024-09-12 18:05:00,678 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:00,679 INFO L474 AbstractCegarLoop]: Abstraction has 28 states and 28 transitions. [2024-09-12 18:05:00,679 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 6 states have internal predecessors, (13), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,679 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:00,679 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 28 transitions. [2024-09-12 18:05:00,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2024-09-12 18:05:00,680 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:00,680 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:00,680 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 18:05:00,680 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:00,680 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:00,680 INFO L85 PathProgramCache]: Analyzing trace with hash 386146231, now seen corresponding path program 1 times [2024-09-12 18:05:00,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:00,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [542249936] [2024-09-12 18:05:00,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:00,681 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:00,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:00,733 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:00,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:00,740 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:00,740 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:00,740 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [542249936] [2024-09-12 18:05:00,741 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [542249936] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:05:00,741 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 18:05:00,741 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 18:05:00,741 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955976817] [2024-09-12 18:05:00,741 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:05:00,742 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 18:05:00,742 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:00,742 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 18:05:00,742 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 18:05:00,743 INFO L87 Difference]: Start difference. First operand 28 states and 28 transitions. Second operand has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:00,802 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2024-09-12 18:05:00,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:05:00,803 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 18 [2024-09-12 18:05:00,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:00,804 INFO L225 Difference]: With dead ends: 31 [2024-09-12 18:05:00,804 INFO L226 Difference]: Without dead ends: 30 [2024-09-12 18:05:00,804 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 18:05:00,805 INFO L434 NwaCegarLoop]: 11 mSDtfsCounter, 7 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 50 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 26 SdHoareTripleChecker+Invalid, 51 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 50 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:00,807 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 26 Invalid, 51 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 50 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:05:00,808 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2024-09-12 18:05:00,814 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2024-09-12 18:05:00,815 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 30 states, 23 states have (on average 1.173913043478261) internal successors, (27), 26 states have internal predecessors, (27), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 30 transitions. [2024-09-12 18:05:00,815 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 30 transitions. Word has length 18 [2024-09-12 18:05:00,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:00,816 INFO L474 AbstractCegarLoop]: Abstraction has 30 states and 30 transitions. [2024-09-12 18:05:00,816 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.75) internal successors, (15), 4 states have internal predecessors, (15), 1 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:00,816 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:00,817 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 30 transitions. [2024-09-12 18:05:00,817 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2024-09-12 18:05:00,817 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:00,817 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:00,818 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-09-12 18:05:00,818 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:00,818 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:00,818 INFO L85 PathProgramCache]: Analyzing trace with hash 1760004739, now seen corresponding path program 1 times [2024-09-12 18:05:00,818 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:00,819 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348476799] [2024-09-12 18:05:00,819 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:00,819 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:00,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:00,920 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:00,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:00,924 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:00,924 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:00,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348476799] [2024-09-12 18:05:00,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348476799] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:00,924 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1082344187] [2024-09-12 18:05:00,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:00,925 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:00,925 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:00,927 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:00,931 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-09-12 18:05:00,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:01,001 INFO L262 TraceCheckSpWp]: Trace formula consists of 88 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:05:01,006 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:05:01,194 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:01,194 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:05:01,323 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:01,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1082344187] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:05:01,324 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:05:01,324 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 19 [2024-09-12 18:05:01,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1546551952] [2024-09-12 18:05:01,325 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:05:01,325 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-09-12 18:05:01,325 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:01,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-09-12 18:05:01,326 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=283, Unknown=0, NotChecked=0, Total=380 [2024-09-12 18:05:01,327 INFO L87 Difference]: Start difference. First operand 30 states and 30 transitions. Second operand has 20 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:01,585 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:01,585 INFO L93 Difference]: Finished difference Result 53 states and 65 transitions. [2024-09-12 18:05:01,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 18:05:01,586 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 21 [2024-09-12 18:05:01,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:01,588 INFO L225 Difference]: With dead ends: 53 [2024-09-12 18:05:01,588 INFO L226 Difference]: Without dead ends: 52 [2024-09-12 18:05:01,589 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 150 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=192, Invalid=510, Unknown=0, NotChecked=0, Total=702 [2024-09-12 18:05:01,589 INFO L434 NwaCegarLoop]: 8 mSDtfsCounter, 36 mSDsluCounter, 47 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 186 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:01,590 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 55 Invalid, 186 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 18:05:01,593 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2024-09-12 18:05:01,605 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2024-09-12 18:05:01,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 44 states have (on average 1.3181818181818181) internal successors, (58), 47 states have internal predecessors, (58), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:01,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 61 transitions. [2024-09-12 18:05:01,606 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 61 transitions. Word has length 21 [2024-09-12 18:05:01,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:01,607 INFO L474 AbstractCegarLoop]: Abstraction has 51 states and 61 transitions. [2024-09-12 18:05:01,607 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 19 states have (on average 2.736842105263158) internal successors, (52), 19 states have internal predecessors, (52), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:01,608 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:01,608 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 61 transitions. [2024-09-12 18:05:01,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:05:01,608 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:01,609 INFO L216 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:01,627 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-09-12 18:05:01,809 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:01,810 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr8ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:01,810 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:01,810 INFO L85 PathProgramCache]: Analyzing trace with hash -1274417914, now seen corresponding path program 1 times [2024-09-12 18:05:01,810 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:01,810 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [592386375] [2024-09-12 18:05:01,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:01,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:01,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:01,961 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:01,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:01,965 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:01,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:01,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [592386375] [2024-09-12 18:05:01,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [592386375] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:01,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1420002461] [2024-09-12 18:05:01,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:01,967 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:01,967 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:01,969 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:01,971 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-09-12 18:05:02,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:02,015 INFO L262 TraceCheckSpWp]: Trace formula consists of 94 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 18:05:02,017 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:05:02,076 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:02,076 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:05:02,230 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:02,230 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1420002461] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:02,230 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 18:05:02,230 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [9, 8] total 15 [2024-09-12 18:05:02,231 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173124950] [2024-09-12 18:05:02,231 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:05:02,231 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 18:05:02,231 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:02,232 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 18:05:02,232 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-09-12 18:05:02,232 INFO L87 Difference]: Start difference. First operand 51 states and 61 transitions. Second operand has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:02,296 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:02,296 INFO L93 Difference]: Finished difference Result 51 states and 61 transitions. [2024-09-12 18:05:02,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 18:05:02,297 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-09-12 18:05:02,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:02,298 INFO L225 Difference]: With dead ends: 51 [2024-09-12 18:05:02,298 INFO L226 Difference]: Without dead ends: 48 [2024-09-12 18:05:02,298 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 40 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=64, Invalid=176, Unknown=0, NotChecked=0, Total=240 [2024-09-12 18:05:02,299 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 27 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 54 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 27 SdHoareTripleChecker+Valid, 20 SdHoareTripleChecker+Invalid, 66 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 54 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:02,299 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [27 Valid, 20 Invalid, 66 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 54 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:05:02,299 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2024-09-12 18:05:02,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2024-09-12 18:05:02,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 48 states, 42 states have (on average 1.2142857142857142) internal successors, (51), 44 states have internal predecessors, (51), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:02,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 54 transitions. [2024-09-12 18:05:02,311 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 54 transitions. Word has length 22 [2024-09-12 18:05:02,311 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:02,311 INFO L474 AbstractCegarLoop]: Abstraction has 48 states and 54 transitions. [2024-09-12 18:05:02,311 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 2.375) internal successors, (19), 8 states have internal predecessors, (19), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:02,312 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:02,312 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 54 transitions. [2024-09-12 18:05:02,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2024-09-12 18:05:02,312 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:02,312 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:02,331 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-09-12 18:05:02,513 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-09-12 18:05:02,514 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:02,514 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:02,514 INFO L85 PathProgramCache]: Analyzing trace with hash -1274427876, now seen corresponding path program 1 times [2024-09-12 18:05:02,515 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:02,515 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [502980425] [2024-09-12 18:05:02,515 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:02,515 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:02,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:02,623 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:02,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:02,631 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:02,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:02,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [502980425] [2024-09-12 18:05:02,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [502980425] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:02,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1639192217] [2024-09-12 18:05:02,633 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:02,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:02,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:02,636 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:02,638 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-09-12 18:05:02,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:02,687 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 18:05:02,688 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:05:02,818 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:02,818 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:05:02,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:02,949 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1639192217] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:05:02,949 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:05:02,949 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7, 7] total 20 [2024-09-12 18:05:02,949 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1558421578] [2024-09-12 18:05:02,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:05:02,950 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 18:05:02,950 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:02,950 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 18:05:02,951 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=84, Invalid=336, Unknown=0, NotChecked=0, Total=420 [2024-09-12 18:05:02,951 INFO L87 Difference]: Start difference. First operand 48 states and 54 transitions. Second operand has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:03,288 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:03,289 INFO L93 Difference]: Finished difference Result 53 states and 56 transitions. [2024-09-12 18:05:03,289 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 18:05:03,289 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 22 [2024-09-12 18:05:03,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:03,290 INFO L225 Difference]: With dead ends: 53 [2024-09-12 18:05:03,290 INFO L226 Difference]: Without dead ends: 51 [2024-09-12 18:05:03,290 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 142 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=244, Invalid=748, Unknown=0, NotChecked=0, Total=992 [2024-09-12 18:05:03,291 INFO L434 NwaCegarLoop]: 5 mSDtfsCounter, 31 mSDsluCounter, 59 mSDsCounter, 0 mSdLazyCounter, 240 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 31 SdHoareTripleChecker+Valid, 64 SdHoareTripleChecker+Invalid, 258 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:03,291 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [31 Valid, 64 Invalid, 258 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 240 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:05:03,292 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-09-12 18:05:03,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 49. [2024-09-12 18:05:03,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 49 states, 43 states have (on average 1.1162790697674418) internal successors, (48), 45 states have internal predecessors, (48), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:03,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 49 states to 49 states and 51 transitions. [2024-09-12 18:05:03,310 INFO L78 Accepts]: Start accepts. Automaton has 49 states and 51 transitions. Word has length 22 [2024-09-12 18:05:03,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:03,311 INFO L474 AbstractCegarLoop]: Abstraction has 49 states and 51 transitions. [2024-09-12 18:05:03,311 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 2.8) internal successors, (56), 20 states have internal predecessors, (56), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:03,313 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:03,313 INFO L276 IsEmpty]: Start isEmpty. Operand 49 states and 51 transitions. [2024-09-12 18:05:03,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2024-09-12 18:05:03,314 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:03,314 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:03,332 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-09-12 18:05:03,518 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-09-12 18:05:03,519 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:03,519 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:03,519 INFO L85 PathProgramCache]: Analyzing trace with hash 1538870661, now seen corresponding path program 1 times [2024-09-12 18:05:03,519 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:03,519 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1341798269] [2024-09-12 18:05:03,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:03,520 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:03,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:03,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:03,643 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:03,645 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:03,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1341798269] [2024-09-12 18:05:03,645 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1341798269] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:03,645 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [177996338] [2024-09-12 18:05:03,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:03,645 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:03,646 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:03,647 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:03,649 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-09-12 18:05:03,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:03,695 INFO L262 TraceCheckSpWp]: Trace formula consists of 110 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 18:05:03,696 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:05:03,767 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:03,768 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:05:03,868 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:03,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [177996338] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:05:03,870 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:05:03,870 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 5, 5] total 18 [2024-09-12 18:05:03,870 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1906010349] [2024-09-12 18:05:03,870 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:05:03,870 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-09-12 18:05:03,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:03,873 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-09-12 18:05:03,874 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=268, Unknown=0, NotChecked=0, Total=342 [2024-09-12 18:05:03,874 INFO L87 Difference]: Start difference. First operand 49 states and 51 transitions. Second operand has 19 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:04,176 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:04,176 INFO L93 Difference]: Finished difference Result 88 states and 108 transitions. [2024-09-12 18:05:04,177 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2024-09-12 18:05:04,177 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 30 [2024-09-12 18:05:04,177 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:04,180 INFO L225 Difference]: With dead ends: 88 [2024-09-12 18:05:04,180 INFO L226 Difference]: Without dead ends: 87 [2024-09-12 18:05:04,180 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 53 SyntacticMatches, 0 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=200, Invalid=670, Unknown=0, NotChecked=0, Total=870 [2024-09-12 18:05:04,182 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 25 mSDsluCounter, 71 mSDsCounter, 0 mSdLazyCounter, 263 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 25 SdHoareTripleChecker+Valid, 80 SdHoareTripleChecker+Invalid, 273 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 263 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:04,182 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [25 Valid, 80 Invalid, 273 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 263 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 18:05:04,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 87 states. [2024-09-12 18:05:04,205 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 87 to 87. [2024-09-12 18:05:04,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 87 states, 81 states have (on average 1.1851851851851851) internal successors, (96), 83 states have internal predecessors, (96), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:04,205 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 87 states to 87 states and 99 transitions. [2024-09-12 18:05:04,206 INFO L78 Accepts]: Start accepts. Automaton has 87 states and 99 transitions. Word has length 30 [2024-09-12 18:05:04,206 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:04,206 INFO L474 AbstractCegarLoop]: Abstraction has 87 states and 99 transitions. [2024-09-12 18:05:04,206 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 18 states have (on average 4.333333333333333) internal successors, (78), 18 states have internal predecessors, (78), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:04,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:04,207 INFO L276 IsEmpty]: Start isEmpty. Operand 87 states and 99 transitions. [2024-09-12 18:05:04,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 18:05:04,208 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:04,209 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:04,228 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-09-12 18:05:04,409 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:04,410 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:04,410 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:04,410 INFO L85 PathProgramCache]: Analyzing trace with hash 1123065447, now seen corresponding path program 2 times [2024-09-12 18:05:04,410 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:04,410 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1354191867] [2024-09-12 18:05:04,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:04,411 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:04,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:04,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:04,711 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:04,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:04,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1354191867] [2024-09-12 18:05:04,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1354191867] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:04,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [485842323] [2024-09-12 18:05:04,713 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:05:04,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:04,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:04,715 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:04,717 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-09-12 18:05:04,767 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:05:04,768 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:05:04,769 INFO L262 TraceCheckSpWp]: Trace formula consists of 148 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:05:04,770 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:05:05,181 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:05,181 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:05:05,506 INFO L134 CoverageAnalysis]: Checked inductivity of 75 backedges. 0 proven. 75 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:05,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [485842323] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:05:05,507 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:05:05,507 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 43 [2024-09-12 18:05:05,507 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535753603] [2024-09-12 18:05:05,507 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:05:05,508 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 44 states [2024-09-12 18:05:05,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:05,508 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 44 interpolants. [2024-09-12 18:05:05,509 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=397, Invalid=1495, Unknown=0, NotChecked=0, Total=1892 [2024-09-12 18:05:05,509 INFO L87 Difference]: Start difference. First operand 87 states and 99 transitions. Second operand has 44 states, 43 states have (on average 2.883720930232558) internal successors, (124), 43 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:06,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:06,349 INFO L93 Difference]: Finished difference Result 97 states and 112 transitions. [2024-09-12 18:05:06,349 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2024-09-12 18:05:06,349 INFO L78 Accepts]: Start accepts. Automaton has has 44 states, 43 states have (on average 2.883720930232558) internal successors, (124), 43 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 45 [2024-09-12 18:05:06,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:06,350 INFO L225 Difference]: With dead ends: 97 [2024-09-12 18:05:06,350 INFO L226 Difference]: Without dead ends: 96 [2024-09-12 18:05:06,352 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 125 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 61 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1120 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=964, Invalid=2942, Unknown=0, NotChecked=0, Total=3906 [2024-09-12 18:05:06,352 INFO L434 NwaCegarLoop]: 10 mSDtfsCounter, 55 mSDsluCounter, 165 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 24 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 55 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 24 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:06,353 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [55 Valid, 175 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [24 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:05:06,353 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2024-09-12 18:05:06,385 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 96. [2024-09-12 18:05:06,386 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 96 states, 90 states have (on average 1.1222222222222222) internal successors, (101), 92 states have internal predecessors, (101), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:06,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 104 transitions. [2024-09-12 18:05:06,387 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 104 transitions. Word has length 45 [2024-09-12 18:05:06,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:06,387 INFO L474 AbstractCegarLoop]: Abstraction has 96 states and 104 transitions. [2024-09-12 18:05:06,388 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 44 states, 43 states have (on average 2.883720930232558) internal successors, (124), 43 states have internal predecessors, (124), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:06,388 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:06,388 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 104 transitions. [2024-09-12 18:05:06,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2024-09-12 18:05:06,389 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:06,389 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 5, 5, 5, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:06,408 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-09-12 18:05:06,590 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-09-12 18:05:06,591 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:06,591 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:06,591 INFO L85 PathProgramCache]: Analyzing trace with hash 455290552, now seen corresponding path program 2 times [2024-09-12 18:05:06,591 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:06,591 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1397174721] [2024-09-12 18:05:06,591 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:06,592 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:06,874 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:06,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:06,882 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:06,882 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:06,882 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1397174721] [2024-09-12 18:05:06,882 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1397174721] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:06,883 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863534413] [2024-09-12 18:05:06,883 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:05:06,883 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:06,883 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:06,887 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:06,888 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-09-12 18:05:06,934 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:05:06,935 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:05:06,936 INFO L262 TraceCheckSpWp]: Trace formula consists of 149 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 18:05:06,938 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:05:07,315 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:07,315 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:05:07,811 INFO L134 CoverageAnalysis]: Checked inductivity of 80 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:07,811 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863534413] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:05:07,811 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:05:07,811 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 15, 15] total 44 [2024-09-12 18:05:07,811 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [986480500] [2024-09-12 18:05:07,811 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:05:07,812 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-09-12 18:05:07,812 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:07,813 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-09-12 18:05:07,814 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=342, Invalid=1638, Unknown=0, NotChecked=0, Total=1980 [2024-09-12 18:05:07,816 INFO L87 Difference]: Start difference. First operand 96 states and 104 transitions. Second operand has 45 states, 44 states have (on average 2.909090909090909) internal successors, (128), 44 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:09,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:09,123 INFO L93 Difference]: Finished difference Result 124 states and 142 transitions. [2024-09-12 18:05:09,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-09-12 18:05:09,123 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 44 states have (on average 2.909090909090909) internal successors, (128), 44 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 46 [2024-09-12 18:05:09,123 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:09,124 INFO L225 Difference]: With dead ends: 124 [2024-09-12 18:05:09,124 INFO L226 Difference]: Without dead ends: 123 [2024-09-12 18:05:09,127 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 82 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1555 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=1822, Invalid=5150, Unknown=0, NotChecked=0, Total=6972 [2024-09-12 18:05:09,128 INFO L434 NwaCegarLoop]: 9 mSDtfsCounter, 111 mSDsluCounter, 175 mSDsCounter, 0 mSdLazyCounter, 777 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 184 SdHoareTripleChecker+Invalid, 839 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 777 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:09,128 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 184 Invalid, 839 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 777 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 18:05:09,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 123 states. [2024-09-12 18:05:09,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 123 to 121. [2024-09-12 18:05:09,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 115 states have (on average 1.1043478260869566) internal successors, (127), 117 states have internal predecessors, (127), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:09,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 130 transitions. [2024-09-12 18:05:09,165 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 130 transitions. Word has length 46 [2024-09-12 18:05:09,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:09,166 INFO L474 AbstractCegarLoop]: Abstraction has 121 states and 130 transitions. [2024-09-12 18:05:09,166 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 44 states have (on average 2.909090909090909) internal successors, (128), 44 states have internal predecessors, (128), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:09,166 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:09,166 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 130 transitions. [2024-09-12 18:05:09,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2024-09-12 18:05:09,169 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:09,170 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 12, 12, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:09,189 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-09-12 18:05:09,370 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-09-12 18:05:09,371 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:09,371 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:09,372 INFO L85 PathProgramCache]: Analyzing trace with hash -1527902780, now seen corresponding path program 2 times [2024-09-12 18:05:09,372 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:09,372 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2143935647] [2024-09-12 18:05:09,372 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:09,372 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:09,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:09,985 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:09,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:09,989 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:09,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:09,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2143935647] [2024-09-12 18:05:09,989 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2143935647] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:09,989 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [185150433] [2024-09-12 18:05:09,990 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 18:05:09,990 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:09,990 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:09,992 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:09,994 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-09-12 18:05:10,061 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 18:05:10,061 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:05:10,063 INFO L262 TraceCheckSpWp]: Trace formula consists of 245 conjuncts, 27 conjuncts are in the unsatisfiable core [2024-09-12 18:05:10,066 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:05:10,171 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:10,171 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:05:11,186 INFO L134 CoverageAnalysis]: Checked inductivity of 396 backedges. 0 proven. 396 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:11,187 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [185150433] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:05:11,187 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:05:11,187 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [28, 27, 27] total 54 [2024-09-12 18:05:11,187 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [677451315] [2024-09-12 18:05:11,187 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:05:11,188 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 55 states [2024-09-12 18:05:11,188 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:11,189 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 55 interpolants. [2024-09-12 18:05:11,189 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=767, Invalid=2203, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 18:05:11,190 INFO L87 Difference]: Start difference. First operand 121 states and 130 transitions. Second operand has 55 states, 54 states have (on average 3.0) internal successors, (162), 54 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:13,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:13,191 INFO L93 Difference]: Finished difference Result 121 states and 130 transitions. [2024-09-12 18:05:13,192 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-09-12 18:05:13,192 INFO L78 Accepts]: Start accepts. Automaton has has 55 states, 54 states have (on average 3.0) internal successors, (162), 54 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 84 [2024-09-12 18:05:13,193 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:13,193 INFO L225 Difference]: With dead ends: 121 [2024-09-12 18:05:13,193 INFO L226 Difference]: Without dead ends: 120 [2024-09-12 18:05:13,196 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 251 GetRequests, 143 SyntacticMatches, 0 SemanticMatches, 108 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2061 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=2697, Invalid=9293, Unknown=0, NotChecked=0, Total=11990 [2024-09-12 18:05:13,197 INFO L434 NwaCegarLoop]: 13 mSDtfsCounter, 112 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 1273 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 112 SdHoareTripleChecker+Valid, 296 SdHoareTripleChecker+Invalid, 1328 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1273 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:13,197 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [112 Valid, 296 Invalid, 1328 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1273 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 18:05:13,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2024-09-12 18:05:13,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2024-09-12 18:05:13,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 115 states have (on average 1.0521739130434782) internal successors, (121), 116 states have internal predecessors, (121), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:13,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 124 transitions. [2024-09-12 18:05:13,235 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 124 transitions. Word has length 84 [2024-09-12 18:05:13,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:13,235 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 124 transitions. [2024-09-12 18:05:13,235 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 55 states, 54 states have (on average 3.0) internal successors, (162), 54 states have internal predecessors, (162), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:13,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:13,236 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 124 transitions. [2024-09-12 18:05:13,239 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 94 [2024-09-12 18:05:13,239 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:13,239 INFO L216 NwaCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:13,257 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-09-12 18:05:13,440 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2024-09-12 18:05:13,440 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:13,441 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:13,441 INFO L85 PathProgramCache]: Analyzing trace with hash 867795503, now seen corresponding path program 3 times [2024-09-12 18:05:13,441 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:13,441 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [900614380] [2024-09-12 18:05:13,441 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:13,441 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:13,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:14,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:14,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:14,296 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:14,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:14,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [900614380] [2024-09-12 18:05:14,297 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [900614380] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:14,297 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1005630122] [2024-09-12 18:05:14,297 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:05:14,297 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:14,297 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:14,299 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:14,300 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-09-12 18:05:14,370 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 14 check-sat command(s) [2024-09-12 18:05:14,371 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:05:14,373 INFO L262 TraceCheckSpWp]: Trace formula consists of 268 conjuncts, 31 conjuncts are in the unsatisfiable core [2024-09-12 18:05:14,376 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:05:15,478 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:15,478 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:05:16,526 INFO L134 CoverageAnalysis]: Checked inductivity of 507 backedges. 0 proven. 507 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:16,526 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1005630122] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:05:16,526 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:05:16,529 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [32, 31, 31] total 91 [2024-09-12 18:05:16,529 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502533557] [2024-09-12 18:05:16,529 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:05:16,530 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 92 states [2024-09-12 18:05:16,530 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:16,532 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 92 interpolants. [2024-09-12 18:05:16,537 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1573, Invalid=6799, Unknown=0, NotChecked=0, Total=8372 [2024-09-12 18:05:16,538 INFO L87 Difference]: Start difference. First operand 120 states and 124 transitions. Second operand has 92 states, 91 states have (on average 2.9450549450549453) internal successors, (268), 91 states have internal predecessors, (268), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:19,485 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:19,485 INFO L93 Difference]: Finished difference Result 192 states and 218 transitions. [2024-09-12 18:05:19,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 62 states. [2024-09-12 18:05:19,486 INFO L78 Accepts]: Start accepts. Automaton has has 92 states, 91 states have (on average 2.9450549450549453) internal successors, (268), 91 states have internal predecessors, (268), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 93 [2024-09-12 18:05:19,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:19,487 INFO L225 Difference]: With dead ends: 192 [2024-09-12 18:05:19,487 INFO L226 Difference]: Without dead ends: 191 [2024-09-12 18:05:19,490 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 261 GetRequests, 128 SyntacticMatches, 0 SemanticMatches, 133 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5796 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=4236, Invalid=13854, Unknown=0, NotChecked=0, Total=18090 [2024-09-12 18:05:19,490 INFO L434 NwaCegarLoop]: 18 mSDtfsCounter, 116 mSDsluCounter, 522 mSDsCounter, 0 mSdLazyCounter, 2578 mSolverCounterSat, 52 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 116 SdHoareTripleChecker+Valid, 540 SdHoareTripleChecker+Invalid, 2630 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 52 IncrementalHoareTripleChecker+Valid, 2578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:19,490 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [116 Valid, 540 Invalid, 2630 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [52 Valid, 2578 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-09-12 18:05:19,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-09-12 18:05:19,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 191. [2024-09-12 18:05:19,568 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 191 states, 186 states have (on average 1.0698924731182795) internal successors, (199), 187 states have internal predecessors, (199), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:19,568 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 202 transitions. [2024-09-12 18:05:19,569 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 202 transitions. Word has length 93 [2024-09-12 18:05:19,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:19,569 INFO L474 AbstractCegarLoop]: Abstraction has 191 states and 202 transitions. [2024-09-12 18:05:19,569 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 92 states, 91 states have (on average 2.9450549450549453) internal successors, (268), 91 states have internal predecessors, (268), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:19,570 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:19,570 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 202 transitions. [2024-09-12 18:05:19,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2024-09-12 18:05:19,571 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:19,572 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 17, 17, 17, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:19,585 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 18:05:19,772 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15,9 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:19,773 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:19,773 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:19,774 INFO L85 PathProgramCache]: Analyzing trace with hash 1521021068, now seen corresponding path program 3 times [2024-09-12 18:05:19,774 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:19,774 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [369707041] [2024-09-12 18:05:19,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:19,774 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:19,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:20,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:20,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:20,732 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 0 proven. 884 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:20,732 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:20,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [369707041] [2024-09-12 18:05:20,732 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [369707041] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:20,732 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [503346589] [2024-09-12 18:05:20,732 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 18:05:20,732 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:20,733 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:20,734 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:20,736 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-09-12 18:05:20,779 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 18:05:20,779 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:05:20,780 INFO L262 TraceCheckSpWp]: Trace formula consists of 89 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 18:05:20,782 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:05:20,840 INFO L134 CoverageAnalysis]: Checked inductivity of 884 backedges. 68 proven. 0 refuted. 0 times theorem prover too weak. 816 trivial. 0 not checked. [2024-09-12 18:05:20,840 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 18:05:20,840 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [503346589] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 18:05:20,840 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 18:05:20,840 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [40] total 42 [2024-09-12 18:05:20,841 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1227062878] [2024-09-12 18:05:20,841 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 18:05:20,841 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 18:05:20,841 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:20,841 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 18:05:20,842 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=102, Invalid=1704, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 18:05:20,842 INFO L87 Difference]: Start difference. First operand 191 states and 202 transitions. Second operand has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:20,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:20,919 INFO L93 Difference]: Finished difference Result 191 states and 202 transitions. [2024-09-12 18:05:20,919 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 18:05:20,919 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 118 [2024-09-12 18:05:20,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:20,920 INFO L225 Difference]: With dead ends: 191 [2024-09-12 18:05:20,921 INFO L226 Difference]: Without dead ends: 190 [2024-09-12 18:05:20,921 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 158 GetRequests, 117 SyntacticMatches, 0 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 378 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=102, Invalid=1704, Unknown=0, NotChecked=0, Total=1806 [2024-09-12 18:05:20,922 INFO L434 NwaCegarLoop]: 6 mSDtfsCounter, 12 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 21 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 10 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 21 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:20,922 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 10 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 21 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 18:05:20,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-09-12 18:05:21,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 190. [2024-09-12 18:05:21,001 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 190 states, 186 states have (on average 1.0053763440860215) internal successors, (187), 186 states have internal predecessors, (187), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:21,002 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 190 transitions. [2024-09-12 18:05:21,002 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 190 transitions. Word has length 118 [2024-09-12 18:05:21,003 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:21,003 INFO L474 AbstractCegarLoop]: Abstraction has 190 states and 190 transitions. [2024-09-12 18:05:21,003 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 6.666666666666667) internal successors, (20), 4 states have internal predecessors, (20), 1 states have call successors, (2), 1 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:21,003 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:21,004 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 190 transitions. [2024-09-12 18:05:21,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2024-09-12 18:05:21,005 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:21,005 INFO L216 NwaCegarLoop]: trace histogram [30, 30, 29, 29, 29, 29, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:21,023 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-09-12 18:05:21,206 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-09-12 18:05:21,206 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:21,207 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:21,207 INFO L85 PathProgramCache]: Analyzing trace with hash 1721121215, now seen corresponding path program 4 times [2024-09-12 18:05:21,207 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:21,207 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811150403] [2024-09-12 18:05:21,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:21,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:21,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:23,518 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:23,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:23,522 INFO L134 CoverageAnalysis]: Checked inductivity of 2523 backedges. 0 proven. 2523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:23,522 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:23,522 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811150403] [2024-09-12 18:05:23,523 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811150403] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:23,523 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [743317799] [2024-09-12 18:05:23,523 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-09-12 18:05:23,523 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:23,523 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:23,524 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:23,525 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-09-12 18:05:23,632 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-09-12 18:05:23,632 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:05:23,647 INFO L262 TraceCheckSpWp]: Trace formula consists of 508 conjuncts, 63 conjuncts are in the unsatisfiable core [2024-09-12 18:05:23,651 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:05:27,570 INFO L134 CoverageAnalysis]: Checked inductivity of 2523 backedges. 0 proven. 2523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:27,571 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:05:31,547 INFO L134 CoverageAnalysis]: Checked inductivity of 2523 backedges. 0 proven. 2523 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:31,548 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [743317799] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:05:31,548 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:05:31,548 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [64, 63, 63] total 187 [2024-09-12 18:05:31,548 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1880691007] [2024-09-12 18:05:31,548 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:05:31,549 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 188 states [2024-09-12 18:05:31,549 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:05:31,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 188 interpolants. [2024-09-12 18:05:31,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6229, Invalid=28927, Unknown=0, NotChecked=0, Total=35156 [2024-09-12 18:05:31,556 INFO L87 Difference]: Start difference. First operand 190 states and 190 transitions. Second operand has 188 states, 187 states have (on average 2.9732620320855614) internal successors, (556), 187 states have internal predecessors, (556), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:45,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:05:45,943 INFO L93 Difference]: Finished difference Result 383 states and 414 transitions. [2024-09-12 18:05:45,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2024-09-12 18:05:45,943 INFO L78 Accepts]: Start accepts. Automaton has has 188 states, 187 states have (on average 2.9732620320855614) internal successors, (556), 187 states have internal predecessors, (556), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 189 [2024-09-12 18:05:45,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:05:45,946 INFO L225 Difference]: With dead ends: 383 [2024-09-12 18:05:45,946 INFO L226 Difference]: Without dead ends: 382 [2024-09-12 18:05:45,953 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 533 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 277 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26092 ImplicationChecksByTransitivity, 19.0s TimeCoverageRelationStatistics Valid=17692, Invalid=59870, Unknown=0, NotChecked=0, Total=77562 [2024-09-12 18:05:45,953 INFO L434 NwaCegarLoop]: 34 mSDtfsCounter, 227 mSDsluCounter, 1879 mSDsCounter, 0 mSdLazyCounter, 9315 mSolverCounterSat, 97 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 227 SdHoareTripleChecker+Valid, 1913 SdHoareTripleChecker+Invalid, 9412 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 97 IncrementalHoareTripleChecker+Valid, 9315 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.1s IncrementalHoareTripleChecker+Time [2024-09-12 18:05:45,954 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [227 Valid, 1913 Invalid, 9412 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [97 Valid, 9315 Invalid, 0 Unknown, 0 Unchecked, 3.1s Time] [2024-09-12 18:05:45,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2024-09-12 18:05:46,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 382. [2024-09-12 18:05:46,172 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 382 states, 378 states have (on average 1.0026455026455026) internal successors, (379), 378 states have internal predecessors, (379), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:46,173 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 382 states to 382 states and 382 transitions. [2024-09-12 18:05:46,174 INFO L78 Accepts]: Start accepts. Automaton has 382 states and 382 transitions. Word has length 189 [2024-09-12 18:05:46,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:05:46,174 INFO L474 AbstractCegarLoop]: Abstraction has 382 states and 382 transitions. [2024-09-12 18:05:46,175 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 188 states, 187 states have (on average 2.9732620320855614) internal successors, (556), 187 states have internal predecessors, (556), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:05:46,175 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:46,176 INFO L276 IsEmpty]: Start isEmpty. Operand 382 states and 382 transitions. [2024-09-12 18:05:46,180 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 382 [2024-09-12 18:05:46,180 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:05:46,180 INFO L216 NwaCegarLoop]: trace histogram [62, 62, 61, 61, 61, 61, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:05:46,199 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-09-12 18:05:46,381 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable17 [2024-09-12 18:05:46,381 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:05:46,381 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:05:46,382 INFO L85 PathProgramCache]: Analyzing trace with hash -1527027489, now seen corresponding path program 5 times [2024-09-12 18:05:46,382 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:05:46,382 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1074359046] [2024-09-12 18:05:46,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:05:46,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:05:46,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:55,476 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:05:55,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:05:55,485 INFO L134 CoverageAnalysis]: Checked inductivity of 11163 backedges. 0 proven. 11163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:05:55,485 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:05:55,485 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1074359046] [2024-09-12 18:05:55,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1074359046] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:05:55,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [593661432] [2024-09-12 18:05:55,486 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-09-12 18:05:55,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:05:55,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:05:55,488 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:05:55,489 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-09-12 18:05:55,716 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 62 check-sat command(s) [2024-09-12 18:05:55,717 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:05:55,730 INFO L262 TraceCheckSpWp]: Trace formula consists of 988 conjuncts, 127 conjuncts are in the unsatisfiable core [2024-09-12 18:05:55,735 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 18:06:10,393 INFO L134 CoverageAnalysis]: Checked inductivity of 11163 backedges. 0 proven. 11163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:10,394 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 18:06:26,264 INFO L134 CoverageAnalysis]: Checked inductivity of 11163 backedges. 0 proven. 11163 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:06:26,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [593661432] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 18:06:26,265 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 18:06:26,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [128, 127, 127] total 379 [2024-09-12 18:06:26,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1918381605] [2024-09-12 18:06:26,265 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 18:06:26,267 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 380 states [2024-09-12 18:06:26,267 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 18:06:26,272 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 380 interpolants. [2024-09-12 18:06:26,281 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24757, Invalid=119263, Unknown=0, NotChecked=0, Total=144020 [2024-09-12 18:06:26,283 INFO L87 Difference]: Start difference. First operand 382 states and 382 transitions. Second operand has 380 states, 379 states have (on average 2.9868073878627968) internal successors, (1132), 379 states have internal predecessors, (1132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:51,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 18:07:51,367 INFO L93 Difference]: Finished difference Result 767 states and 830 transitions. [2024-09-12 18:07:51,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 254 states. [2024-09-12 18:07:51,368 INFO L78 Accepts]: Start accepts. Automaton has has 380 states, 379 states have (on average 2.9868073878627968) internal successors, (1132), 379 states have internal predecessors, (1132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 381 [2024-09-12 18:07:51,369 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 18:07:51,372 INFO L225 Difference]: With dead ends: 767 [2024-09-12 18:07:51,372 INFO L226 Difference]: Without dead ends: 766 [2024-09-12 18:07:51,390 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1077 GetRequests, 512 SyntacticMatches, 0 SemanticMatches, 565 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 110460 ImplicationChecksByTransitivity, 103.2s TimeCoverageRelationStatistics Valid=72252, Invalid=248670, Unknown=0, NotChecked=0, Total=320922 [2024-09-12 18:07:51,391 INFO L434 NwaCegarLoop]: 66 mSDtfsCounter, 391 mSDsluCounter, 7329 mSDsCounter, 0 mSdLazyCounter, 36503 mSolverCounterSat, 192 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 9.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 7395 SdHoareTripleChecker+Invalid, 36695 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 192 IncrementalHoareTripleChecker+Valid, 36503 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.7s IncrementalHoareTripleChecker+Time [2024-09-12 18:07:51,391 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 7395 Invalid, 36695 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [192 Valid, 36503 Invalid, 0 Unknown, 0 Unchecked, 11.7s Time] [2024-09-12 18:07:51,392 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 766 states. [2024-09-12 18:07:51,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 766 to 766. [2024-09-12 18:07:51,882 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 766 states, 762 states have (on average 1.0013123359580052) internal successors, (763), 762 states have internal predecessors, (763), 2 states have call successors, (2), 2 states have call predecessors, (2), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:51,884 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 766 states to 766 states and 766 transitions. [2024-09-12 18:07:51,886 INFO L78 Accepts]: Start accepts. Automaton has 766 states and 766 transitions. Word has length 381 [2024-09-12 18:07:51,886 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 18:07:51,886 INFO L474 AbstractCegarLoop]: Abstraction has 766 states and 766 transitions. [2024-09-12 18:07:51,890 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 380 states, 379 states have (on average 2.9868073878627968) internal successors, (1132), 379 states have internal predecessors, (1132), 1 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2024-09-12 18:07:51,891 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:51,891 INFO L276 IsEmpty]: Start isEmpty. Operand 766 states and 766 transitions. [2024-09-12 18:07:51,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2024-09-12 18:07:51,908 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 18:07:51,908 INFO L216 NwaCegarLoop]: trace histogram [126, 126, 125, 125, 125, 125, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 18:07:51,929 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-09-12 18:07:52,109 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:07:52,109 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 6 more)] === [2024-09-12 18:07:52,110 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 18:07:52,110 INFO L85 PathProgramCache]: Analyzing trace with hash 544524063, now seen corresponding path program 6 times [2024-09-12 18:07:52,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 18:07:52,110 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1834292372] [2024-09-12 18:07:52,110 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 18:07:52,110 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 18:07:54,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:08:28,986 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 18:08:28,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 18:08:29,000 INFO L134 CoverageAnalysis]: Checked inductivity of 46875 backedges. 0 proven. 46875 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-09-12 18:08:29,000 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 18:08:29,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1834292372] [2024-09-12 18:08:29,000 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1834292372] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 18:08:29,000 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152175409] [2024-09-12 18:08:29,001 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-09-12 18:08:29,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 18:08:29,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 18:08:29,002 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 18:08:29,003 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-09-12 18:08:29,651 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 126 check-sat command(s) [2024-09-12 18:08:29,652 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 18:08:29,670 INFO L262 TraceCheckSpWp]: Trace formula consists of 1948 conjuncts, 255 conjuncts are in the unsatisfiable core [2024-09-12 18:08:29,682 INFO L285 TraceCheckSpWp]: Computing forward predicates...