./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.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/nla-digbench-scaling/sqrt1-ll_unwindbound50.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 6c37a77a9f4db0db15bb3c5a5baacfcd5e1536d243d9987efda949cfc27e3fb7 --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 19:45:47,536 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:45:47,613 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:45:47,618 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:45:47,619 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:45:47,650 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:45:47,651 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:45:47,651 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:45:47,652 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:45:47,654 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:45:47,655 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:45:47,655 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:45:47,656 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:45:47,656 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:45:47,656 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:45:47,659 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:45:47,659 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:45:47,660 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:45:47,660 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:45:47,660 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:45:47,660 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:45:47,664 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:45:47,665 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:45:47,665 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:45:47,665 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:45:47,665 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:45:47,666 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:45:47,666 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:45:47,666 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:45:47,666 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:45:47,667 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:45:47,667 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:45:47,667 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:45:47,667 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:45:47,667 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:45:47,668 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:45:47,668 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:45:47,669 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:45:47,670 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:45:47,670 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:45:47,671 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:45:47,671 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:45:47,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 6c37a77a9f4db0db15bb3c5a5baacfcd5e1536d243d9987efda949cfc27e3fb7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:45:47,986 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:45:48,006 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:45:48,009 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:45:48,010 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:45:48,010 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:45:48,011 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c [2024-09-12 19:45:49,505 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:45:49,688 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:45:49,688 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound50.c [2024-09-12 19:45:49,695 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/7497df484/53438b2b9b884e0fa9ff392f174d381f/FLAGafbd63bd8 [2024-09-12 19:45:49,706 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/7497df484/53438b2b9b884e0fa9ff392f174d381f [2024-09-12 19:45:49,708 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:45:49,709 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:45:49,715 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:45:49,715 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:45:49,719 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:45:49,720 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:49,720 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2965de34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49, skipping insertion in model container [2024-09-12 19:45:49,721 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:49,735 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:45:49,887 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/nla-digbench-scaling/sqrt1-ll_unwindbound50.c[520,533] [2024-09-12 19:45:49,918 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:45:49,931 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:45:49,943 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/nla-digbench-scaling/sqrt1-ll_unwindbound50.c[520,533] [2024-09-12 19:45:49,954 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:45:49,977 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:45:49,978 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49 WrapperNode [2024-09-12 19:45:49,978 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:45:49,979 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:45:49,980 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:45:49,980 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:45:49,986 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:49,994 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,001 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:45:50,001 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:45:50,002 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:45:50,002 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:45:50,002 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:45:50,012 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,013 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,018 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,036 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 19:45:50,040 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,040 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,043 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,049 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,051 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,055 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,057 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:45:50,057 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:45:50,057 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:45:50,057 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:45:50,058 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (1/1) ... [2024-09-12 19:45:50,064 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:45:50,075 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:50,091 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 19:45:50,094 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 19:45:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:45:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:45:50,136 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:45:50,136 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:45:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:45:50,137 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:45:50,137 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:45:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:45:50,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:45:50,138 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:45:50,200 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:45:50,202 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:45:50,551 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-09-12 19:45:50,551 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:45:50,578 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:45:50,578 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:45:50,579 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:45:50 BoogieIcfgContainer [2024-09-12 19:45:50,579 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:45:50,581 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:45:50,581 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:45:50,586 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:45:50,586 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:45:49" (1/3) ... [2024-09-12 19:45:50,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4887c2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:45:50, skipping insertion in model container [2024-09-12 19:45:50,587 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:49" (2/3) ... [2024-09-12 19:45:50,587 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4887c2e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:45:50, skipping insertion in model container [2024-09-12 19:45:50,588 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:45:50" (3/3) ... [2024-09-12 19:45:50,589 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound50.c [2024-09-12 19:45:50,603 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:45:50,604 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2024-09-12 19:45:50,668 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:45:50,676 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;@3dbf4f22, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:45:50,677 INFO L337 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-09-12 19:45:50,680 INFO L276 IsEmpty]: Start isEmpty. Operand has 128 states, 63 states have (on average 1.9047619047619047) internal successors, (120), 116 states have internal predecessors, (120), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) [2024-09-12 19:45:50,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 19:45:50,690 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:50,690 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:50,691 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:50,697 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:50,698 INFO L85 PathProgramCache]: Analyzing trace with hash -425422923, now seen corresponding path program 1 times [2024-09-12 19:45:50,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:50,705 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [120954693] [2024-09-12 19:45:50,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:50,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:50,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,816 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:50,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,831 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 19:45:50,831 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:50,832 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [120954693] [2024-09-12 19:45:50,832 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [120954693] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:50,832 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:50,832 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:50,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2105932830] [2024-09-12 19:45:50,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:50,837 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:45:50,838 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:50,856 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:45:50,857 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:45:50,860 INFO L87 Difference]: Start difference. First operand has 128 states, 63 states have (on average 1.9047619047619047) internal successors, (120), 116 states have internal predecessors, (120), 8 states have call successors, (8), 3 states have call predecessors, (8), 3 states have return successors, (8), 8 states have call predecessors, (8), 8 states have call successors, (8) Second operand has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 19:45:50,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:50,980 INFO L93 Difference]: Finished difference Result 252 states and 279 transitions. [2024-09-12 19:45:50,994 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:45:50,995 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 7 [2024-09-12 19:45:50,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:51,004 INFO L225 Difference]: With dead ends: 252 [2024-09-12 19:45:51,004 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 19:45:51,008 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:45:51,012 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 10 mSDsluCounter, 106 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 228 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:51,013 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 228 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:51,025 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 19:45:51,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2024-09-12 19:45:51,061 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 120 states, 61 states have (on average 1.8360655737704918) internal successors, (112), 110 states have internal predecessors, (112), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:45:51,065 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 126 transitions. [2024-09-12 19:45:51,068 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 126 transitions. Word has length 7 [2024-09-12 19:45:51,068 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:51,069 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 126 transitions. [2024-09-12 19:45:51,069 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 2 states have internal predecessors, (4), 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 19:45:51,069 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:51,070 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 126 transitions. [2024-09-12 19:45:51,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 19:45:51,070 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:51,070 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:51,071 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:45:51,071 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:51,071 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:51,072 INFO L85 PathProgramCache]: Analyzing trace with hash -425425324, now seen corresponding path program 1 times [2024-09-12 19:45:51,072 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:51,072 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1329841082] [2024-09-12 19:45:51,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:51,072 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:51,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:51,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,232 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 19:45:51,232 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:51,232 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1329841082] [2024-09-12 19:45:51,232 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1329841082] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:51,232 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:51,233 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:51,233 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1934925023] [2024-09-12 19:45:51,233 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:51,234 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:51,234 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:51,234 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:51,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:51,235 INFO L87 Difference]: Start difference. First operand 120 states and 126 transitions. Second operand has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 19:45:51,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:51,367 INFO L93 Difference]: Finished difference Result 177 states and 185 transitions. [2024-09-12 19:45:51,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:45:51,367 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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) Word has length 7 [2024-09-12 19:45:51,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:51,369 INFO L225 Difference]: With dead ends: 177 [2024-09-12 19:45:51,369 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 19:45:51,370 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:45:51,371 INFO L434 NwaCegarLoop]: 116 mSDtfsCounter, 12 mSDsluCounter, 319 mSDsCounter, 0 mSdLazyCounter, 51 mSolverCounterSat, 9 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 435 SdHoareTripleChecker+Invalid, 60 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 9 IncrementalHoareTripleChecker+Valid, 51 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:51,371 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 435 Invalid, 60 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [9 Valid, 51 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:51,374 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 19:45:51,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-09-12 19:45:51,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 65 states have (on average 1.7846153846153847) internal successors, (116), 114 states have internal predecessors, (116), 8 states have call successors, (8), 3 states have call predecessors, (8), 2 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2024-09-12 19:45:51,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 130 transitions. [2024-09-12 19:45:51,394 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 130 transitions. Word has length 7 [2024-09-12 19:45:51,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:51,395 INFO L474 AbstractCegarLoop]: Abstraction has 124 states and 130 transitions. [2024-09-12 19:45:51,395 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 3 states have (on average 1.3333333333333333) internal successors, (4), 3 states have internal predecessors, (4), 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 19:45:51,395 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:51,395 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 130 transitions. [2024-09-12 19:45:51,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 19:45:51,396 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:51,396 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:51,396 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:45:51,396 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:51,396 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:51,396 INFO L85 PathProgramCache]: Analyzing trace with hash 602707066, now seen corresponding path program 1 times [2024-09-12 19:45:51,396 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:51,397 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [342070651] [2024-09-12 19:45:51,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:51,397 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:51,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:51,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,471 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 19:45:51,474 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:51,474 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [342070651] [2024-09-12 19:45:51,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [342070651] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:51,475 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:51,475 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:51,475 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2073047175] [2024-09-12 19:45:51,475 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:51,476 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:51,476 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:51,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:51,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:45:51,478 INFO L87 Difference]: Start difference. First operand 124 states and 130 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 19:45:51,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:51,704 INFO L93 Difference]: Finished difference Result 219 states and 231 transitions. [2024-09-12 19:45:51,705 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:51,705 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 19:45:51,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:51,708 INFO L225 Difference]: With dead ends: 219 [2024-09-12 19:45:51,710 INFO L226 Difference]: Without dead ends: 199 [2024-09-12 19:45:51,710 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 19:45:51,712 INFO L434 NwaCegarLoop]: 122 mSDtfsCounter, 77 mSDsluCounter, 178 mSDsCounter, 0 mSdLazyCounter, 113 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 300 SdHoareTripleChecker+Invalid, 144 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 113 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:51,715 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 300 Invalid, 144 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 113 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:51,716 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-09-12 19:45:51,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 163. [2024-09-12 19:45:51,741 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 163 states, 100 states have (on average 1.63) internal successors, (163), 149 states have internal predecessors, (163), 12 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (10), 10 states have call predecessors, (10), 10 states have call successors, (10) [2024-09-12 19:45:51,743 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 185 transitions. [2024-09-12 19:45:51,745 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 185 transitions. Word has length 10 [2024-09-12 19:45:51,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:51,746 INFO L474 AbstractCegarLoop]: Abstraction has 163 states and 185 transitions. [2024-09-12 19:45:51,746 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 19:45:51,746 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:51,747 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 185 transitions. [2024-09-12 19:45:51,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 19:45:51,748 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:51,748 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:51,748 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:45:51,749 INFO L399 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:51,749 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:51,750 INFO L85 PathProgramCache]: Analyzing trace with hash -556719087, now seen corresponding path program 1 times [2024-09-12 19:45:51,750 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:51,750 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1603281696] [2024-09-12 19:45:51,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:51,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:51,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,907 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:51,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:51,914 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 19:45:51,915 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:51,915 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1603281696] [2024-09-12 19:45:51,915 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1603281696] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:51,915 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:51,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 19:45:51,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [892672643] [2024-09-12 19:45:51,916 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:51,916 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:51,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:51,917 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:51,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:51,918 INFO L87 Difference]: Start difference. First operand 163 states and 185 transitions. Second operand has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 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 19:45:52,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:52,277 INFO L93 Difference]: Finished difference Result 193 states and 216 transitions. [2024-09-12 19:45:52,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:45:52,277 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 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 17 [2024-09-12 19:45:52,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:52,279 INFO L225 Difference]: With dead ends: 193 [2024-09-12 19:45:52,279 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 19:45:52,279 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:45:52,280 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 66 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 391 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 372 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:52,281 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [66 Valid, 337 Invalid, 391 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 372 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:45:52,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 19:45:52,297 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 176. [2024-09-12 19:45:52,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 176 states, 111 states have (on average 1.5765765765765767) internal successors, (175), 160 states have internal predecessors, (175), 13 states have call successors, (13), 4 states have call predecessors, (13), 3 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:45:52,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 199 transitions. [2024-09-12 19:45:52,299 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 199 transitions. Word has length 17 [2024-09-12 19:45:52,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:52,299 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 199 transitions. [2024-09-12 19:45:52,300 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.1666666666666665) internal successors, (13), 4 states have internal predecessors, (13), 2 states have call successors, (3), 3 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 19:45:52,300 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:52,300 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 199 transitions. [2024-09-12 19:45:52,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 19:45:52,301 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:52,301 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, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:52,301 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:45:52,302 INFO L399 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:52,302 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:52,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1036864962, now seen corresponding path program 1 times [2024-09-12 19:45:52,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:52,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [597244506] [2024-09-12 19:45:52,303 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:52,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:52,316 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1726154252] [2024-09-12 19:45:52,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:52,317 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:52,317 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:52,319 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 19:45:52,321 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 19:45:52,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:52,365 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:52,369 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:52,528 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 19:45:52,529 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:52,529 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:52,529 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [597244506] [2024-09-12 19:45:52,529 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:52,530 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1726154252] [2024-09-12 19:45:52,530 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1726154252] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:52,530 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:52,530 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:45:52,530 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1418079711] [2024-09-12 19:45:52,530 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:52,531 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:52,531 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:52,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:52,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:52,534 INFO L87 Difference]: Start difference. First operand 176 states and 199 transitions. Second operand has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:45:52,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:52,776 INFO L93 Difference]: Finished difference Result 197 states and 213 transitions. [2024-09-12 19:45:52,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:52,776 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 28 [2024-09-12 19:45:52,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:52,778 INFO L225 Difference]: With dead ends: 197 [2024-09-12 19:45:52,778 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 19:45:52,778 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:52,779 INFO L434 NwaCegarLoop]: 78 mSDtfsCounter, 40 mSDsluCounter, 190 mSDsCounter, 0 mSdLazyCounter, 243 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 44 SdHoareTripleChecker+Valid, 268 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 243 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:52,781 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [44 Valid, 268 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 243 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:52,783 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 19:45:52,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183. [2024-09-12 19:45:52,805 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 117 states have (on average 1.4871794871794872) internal successors, (174), 166 states have internal predecessors, (174), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:45:52,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 198 transitions. [2024-09-12 19:45:52,807 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 198 transitions. Word has length 28 [2024-09-12 19:45:52,807 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:52,807 INFO L474 AbstractCegarLoop]: Abstraction has 183 states and 198 transitions. [2024-09-12 19:45:52,807 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 4.4) internal successors, (22), 4 states have internal predecessors, (22), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2024-09-12 19:45:52,808 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:52,808 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 198 transitions. [2024-09-12 19:45:52,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:45:52,809 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:52,809 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:52,826 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 19:45:53,013 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:53,014 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:53,014 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,014 INFO L85 PathProgramCache]: Analyzing trace with hash -2039071583, now seen corresponding path program 1 times [2024-09-12 19:45:53,014 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:53,014 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1220340842] [2024-09-12 19:45:53,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:53,015 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:53,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:53,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,110 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:53,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,118 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:53,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,135 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:45:53,135 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:53,136 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1220340842] [2024-09-12 19:45:53,136 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1220340842] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:53,136 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:53,136 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:45:53,137 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771276643] [2024-09-12 19:45:53,137 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:53,137 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:53,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:53,138 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:53,138 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:53,139 INFO L87 Difference]: Start difference. First operand 183 states and 198 transitions. Second operand has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:53,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:53,326 INFO L93 Difference]: Finished difference Result 193 states and 209 transitions. [2024-09-12 19:45:53,326 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:53,327 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 35 [2024-09-12 19:45:53,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:53,328 INFO L225 Difference]: With dead ends: 193 [2024-09-12 19:45:53,329 INFO L226 Difference]: Without dead ends: 189 [2024-09-12 19:45:53,329 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 19:45:53,330 INFO L434 NwaCegarLoop]: 83 mSDtfsCounter, 93 mSDsluCounter, 144 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 98 SdHoareTripleChecker+Valid, 227 SdHoareTripleChecker+Invalid, 158 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:53,332 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 227 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:53,332 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-09-12 19:45:53,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2024-09-12 19:45:53,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 119 states have (on average 1.4621848739495797) internal successors, (174), 168 states have internal predecessors, (174), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:45:53,357 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 198 transitions. [2024-09-12 19:45:53,358 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 198 transitions. Word has length 35 [2024-09-12 19:45:53,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:53,358 INFO L474 AbstractCegarLoop]: Abstraction has 185 states and 198 transitions. [2024-09-12 19:45:53,360 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 6.25) internal successors, (25), 4 states have internal predecessors, (25), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:53,360 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,360 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 198 transitions. [2024-09-12 19:45:53,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:45:53,361 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:53,361 INFO L216 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:53,361 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 19:45:53,362 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:53,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1308821147, now seen corresponding path program 1 times [2024-09-12 19:45:53,363 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:53,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1430783925] [2024-09-12 19:45:53,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:53,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:53,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:53,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:53,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:53,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:45:53,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:53,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1430783925] [2024-09-12 19:45:53,461 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1430783925] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:53,461 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:53,461 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:53,461 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [264521384] [2024-09-12 19:45:53,461 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:53,461 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:53,462 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:53,462 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:53,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:45:53,463 INFO L87 Difference]: Start difference. First operand 185 states and 198 transitions. Second operand has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:53,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:53,649 INFO L93 Difference]: Finished difference Result 191 states and 201 transitions. [2024-09-12 19:45:53,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:53,649 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 39 [2024-09-12 19:45:53,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:53,651 INFO L225 Difference]: With dead ends: 191 [2024-09-12 19:45:53,651 INFO L226 Difference]: Without dead ends: 187 [2024-09-12 19:45:53,652 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 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 19:45:53,653 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 38 mSDsluCounter, 134 mSDsCounter, 0 mSdLazyCounter, 138 mSolverCounterSat, 16 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 41 SdHoareTripleChecker+Valid, 225 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 16 IncrementalHoareTripleChecker+Valid, 138 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:53,653 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 225 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:53,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-09-12 19:45:53,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2024-09-12 19:45:53,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186 states, 120 states have (on average 1.4333333333333333) internal successors, (172), 169 states have internal predecessors, (172), 13 states have call successors, (13), 5 states have call predecessors, (13), 4 states have return successors, (11), 11 states have call predecessors, (11), 11 states have call successors, (11) [2024-09-12 19:45:53,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 196 transitions. [2024-09-12 19:45:53,675 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 196 transitions. Word has length 39 [2024-09-12 19:45:53,677 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:53,677 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 196 transitions. [2024-09-12 19:45:53,677 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 9.666666666666666) internal successors, (29), 3 states have internal predecessors, (29), 2 states have call successors, (4), 2 states have call predecessors, (4), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:53,678 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,678 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 196 transitions. [2024-09-12 19:45:53,680 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 19:45:53,680 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:53,681 INFO L216 NwaCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:53,681 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:45:53,681 INFO L399 AbstractCegarLoop]: === Iteration 8 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:53,681 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:53,681 INFO L85 PathProgramCache]: Analyzing trace with hash -1212702409, now seen corresponding path program 1 times [2024-09-12 19:45:53,681 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:53,681 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [929276884] [2024-09-12 19:45:53,682 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:53,682 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:53,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:53,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1698863402] [2024-09-12 19:45:53,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:53,699 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:53,700 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:53,701 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 19:45:53,709 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 19:45:53,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:53,752 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:53,754 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:53,921 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2024-09-12 19:45:53,921 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:53,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:53,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [929276884] [2024-09-12 19:45:53,922 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:53,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1698863402] [2024-09-12 19:45:53,923 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1698863402] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:53,923 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:53,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:45:53,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963325083] [2024-09-12 19:45:53,925 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:53,925 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:53,925 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:53,925 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:53,925 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:53,926 INFO L87 Difference]: Start difference. First operand 186 states and 196 transitions. Second operand has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:54,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:54,074 INFO L93 Difference]: Finished difference Result 193 states and 202 transitions. [2024-09-12 19:45:54,075 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:54,075 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 45 [2024-09-12 19:45:54,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:54,076 INFO L225 Difference]: With dead ends: 193 [2024-09-12 19:45:54,076 INFO L226 Difference]: Without dead ends: 166 [2024-09-12 19:45:54,077 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:54,077 INFO L434 NwaCegarLoop]: 119 mSDtfsCounter, 30 mSDsluCounter, 296 mSDsCounter, 0 mSdLazyCounter, 163 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 33 SdHoareTripleChecker+Valid, 415 SdHoareTripleChecker+Invalid, 164 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 163 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:54,079 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [33 Valid, 415 Invalid, 164 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 163 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:54,079 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-09-12 19:45:54,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-09-12 19:45:54,091 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 166 states, 101 states have (on average 1.504950495049505) internal successors, (152), 150 states have internal predecessors, (152), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:45:54,092 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 172 transitions. [2024-09-12 19:45:54,093 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 172 transitions. Word has length 45 [2024-09-12 19:45:54,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:54,094 INFO L474 AbstractCegarLoop]: Abstraction has 166 states and 172 transitions. [2024-09-12 19:45:54,094 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 6.8) internal successors, (34), 4 states have internal predecessors, (34), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-09-12 19:45:54,094 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:54,094 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 172 transitions. [2024-09-12 19:45:54,096 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 19:45:54,096 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:54,096 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:54,113 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 19:45:54,297 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,3 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:54,298 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:54,298 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:54,298 INFO L85 PathProgramCache]: Analyzing trace with hash 291116170, now seen corresponding path program 1 times [2024-09-12 19:45:54,298 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:54,298 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192881199] [2024-09-12 19:45:54,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:54,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:54,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,390 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:54,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:54,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:54,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:54,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,403 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:54,404 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:54,404 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1192881199] [2024-09-12 19:45:54,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1192881199] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:54,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:54,404 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:45:54,404 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1672589805] [2024-09-12 19:45:54,404 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:54,405 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:54,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:54,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:54,405 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:54,406 INFO L87 Difference]: Start difference. First operand 166 states and 172 transitions. Second operand has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:54,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:54,593 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2024-09-12 19:45:54,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:54,594 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 52 [2024-09-12 19:45:54,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:54,595 INFO L225 Difference]: With dead ends: 169 [2024-09-12 19:45:54,597 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 19:45:54,597 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:54,598 INFO L434 NwaCegarLoop]: 101 mSDtfsCounter, 9 mSDsluCounter, 201 mSDsCounter, 0 mSdLazyCounter, 187 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 302 SdHoareTripleChecker+Invalid, 197 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:54,598 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 302 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:54,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 19:45:54,611 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2024-09-12 19:45:54,611 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 102 states have (on average 1.5) internal successors, (153), 151 states have internal predecessors, (153), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:45:54,612 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 173 transitions. [2024-09-12 19:45:54,612 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 173 transitions. Word has length 52 [2024-09-12 19:45:54,613 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:54,613 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 173 transitions. [2024-09-12 19:45:54,613 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.25) internal successors, (37), 4 states have internal predecessors, (37), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:54,614 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:54,614 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 173 transitions. [2024-09-12 19:45:54,615 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 19:45:54,616 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:54,616 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:54,616 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:45:54,616 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:54,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:54,617 INFO L85 PathProgramCache]: Analyzing trace with hash 434666791, now seen corresponding path program 1 times [2024-09-12 19:45:54,617 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:54,617 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759769422] [2024-09-12 19:45:54,617 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:54,618 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:54,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:54,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,703 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:54,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,707 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:54,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,715 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:54,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:54,720 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:54,721 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:54,721 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759769422] [2024-09-12 19:45:54,721 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759769422] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:54,721 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:54,721 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:45:54,722 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578569850] [2024-09-12 19:45:54,722 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:54,723 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:54,723 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:54,724 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:54,724 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:54,724 INFO L87 Difference]: Start difference. First operand 167 states and 173 transitions. Second operand has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:54,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:54,901 INFO L93 Difference]: Finished difference Result 169 states and 175 transitions. [2024-09-12 19:45:54,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:54,901 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 53 [2024-09-12 19:45:54,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:54,903 INFO L225 Difference]: With dead ends: 169 [2024-09-12 19:45:54,903 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 19:45:54,903 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 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 19:45:54,904 INFO L434 NwaCegarLoop]: 102 mSDtfsCounter, 8 mSDsluCounter, 203 mSDsCounter, 0 mSdLazyCounter, 183 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 305 SdHoareTripleChecker+Invalid, 193 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 183 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:54,904 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 305 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:54,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 19:45:54,913 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-09-12 19:45:54,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 168 states, 103 states have (on average 1.4951456310679612) internal successors, (154), 152 states have internal predecessors, (154), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:45:54,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2024-09-12 19:45:54,914 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 53 [2024-09-12 19:45:54,915 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:54,915 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2024-09-12 19:45:54,916 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 9.5) internal successors, (38), 4 states have internal predecessors, (38), 2 states have call successors, (5), 2 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:54,916 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:54,916 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2024-09-12 19:45:54,917 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:45:54,917 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:54,917 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:54,917 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 19:45:54,918 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:54,918 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:54,919 INFO L85 PathProgramCache]: Analyzing trace with hash 1102959721, now seen corresponding path program 1 times [2024-09-12 19:45:54,926 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:54,926 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1678590532] [2024-09-12 19:45:54,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:54,927 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:54,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,010 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,017 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:55,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,020 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:55,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,023 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,031 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:55,031 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:55,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1678590532] [2024-09-12 19:45:55,031 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1678590532] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:55,031 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [296570760] [2024-09-12 19:45:55,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:55,034 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:55,034 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:55,037 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 19:45:55,040 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 19:45:55,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,084 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:55,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:55,171 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:55,172 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:55,172 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [296570760] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:55,172 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:45:55,172 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-09-12 19:45:55,172 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [106835272] [2024-09-12 19:45:55,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:55,173 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:55,173 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:55,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:55,174 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:45:55,174 INFO L87 Difference]: Start difference. First operand 168 states and 174 transitions. Second operand has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:55,229 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:55,229 INFO L93 Difference]: Finished difference Result 168 states and 174 transitions. [2024-09-12 19:45:55,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:45:55,230 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 55 [2024-09-12 19:45:55,230 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:55,231 INFO L225 Difference]: With dead ends: 168 [2024-09-12 19:45:55,231 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 19:45:55,232 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:45:55,232 INFO L434 NwaCegarLoop]: 118 mSDtfsCounter, 85 mSDsluCounter, 121 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 85 SdHoareTripleChecker+Valid, 239 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:55,232 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [85 Valid, 239 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:45:55,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 19:45:55,244 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-09-12 19:45:55,245 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 167 states, 103 states have (on average 1.4854368932038835) internal successors, (153), 151 states have internal predecessors, (153), 11 states have call successors, (11), 6 states have call predecessors, (11), 5 states have return successors, (9), 9 states have call predecessors, (9), 9 states have call successors, (9) [2024-09-12 19:45:55,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 173 transitions. [2024-09-12 19:45:55,246 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 173 transitions. Word has length 55 [2024-09-12 19:45:55,246 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:55,246 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 173 transitions. [2024-09-12 19:45:55,246 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 8.0) internal successors, (40), 5 states have internal predecessors, (40), 3 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:55,247 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:55,247 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 173 transitions. [2024-09-12 19:45:55,247 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 19:45:55,247 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:55,248 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:55,264 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 19:45:55,451 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 19:45:55,452 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:55,452 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:55,452 INFO L85 PathProgramCache]: Analyzing trace with hash -167986973, now seen corresponding path program 1 times [2024-09-12 19:45:55,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:55,452 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1523299265] [2024-09-12 19:45:55,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:55,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:55,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,550 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:55,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:55,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,566 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:55,567 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:55,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1523299265] [2024-09-12 19:45:55,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1523299265] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:55,567 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1486685697] [2024-09-12 19:45:55,567 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:55,567 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:55,567 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:55,569 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 19:45:55,570 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 19:45:55,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:55,614 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:55,616 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:55,706 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:55,706 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:55,817 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:55,817 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1486685697] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:55,817 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:45:55,817 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2024-09-12 19:45:55,817 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395814542] [2024-09-12 19:45:55,818 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:55,818 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:45:55,820 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:55,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:45:55,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:45:55,821 INFO L87 Difference]: Start difference. First operand 167 states and 173 transitions. Second operand has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:45:56,112 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:56,112 INFO L93 Difference]: Finished difference Result 448 states and 469 transitions. [2024-09-12 19:45:56,113 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 19:45:56,113 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) Word has length 56 [2024-09-12 19:45:56,113 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:56,115 INFO L225 Difference]: With dead ends: 448 [2024-09-12 19:45:56,115 INFO L226 Difference]: Without dead ends: 396 [2024-09-12 19:45:56,116 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 137 GetRequests, 115 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=150, Invalid=402, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:45:56,118 INFO L434 NwaCegarLoop]: 145 mSDtfsCounter, 275 mSDsluCounter, 920 mSDsCounter, 0 mSdLazyCounter, 170 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 1065 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 170 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:56,118 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 1065 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 170 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:56,120 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-09-12 19:45:56,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 300. [2024-09-12 19:45:56,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 300 states, 222 states have (on average 1.662162162162162) internal successors, (369), 272 states have internal predecessors, (369), 23 states have call successors, (23), 8 states have call predecessors, (23), 7 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:45:56,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 411 transitions. [2024-09-12 19:45:56,141 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 411 transitions. Word has length 56 [2024-09-12 19:45:56,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:56,141 INFO L474 AbstractCegarLoop]: Abstraction has 300 states and 411 transitions. [2024-09-12 19:45:56,142 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 13 states have (on average 6.769230769230769) internal successors, (88), 13 states have internal predecessors, (88), 6 states have call successors, (14), 6 states have call predecessors, (14), 5 states have return successors, (12), 5 states have call predecessors, (12), 3 states have call successors, (12) [2024-09-12 19:45:56,142 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:56,142 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 411 transitions. [2024-09-12 19:45:56,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:45:56,143 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:56,143 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:56,160 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 19:45:56,343 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 19:45:56,344 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:56,344 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:56,344 INFO L85 PathProgramCache]: Analyzing trace with hash 1773277765, now seen corresponding path program 1 times [2024-09-12 19:45:56,344 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:56,344 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801967811] [2024-09-12 19:45:56,344 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:56,344 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:56,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:56,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:56,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,395 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:56,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:56,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,401 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:56,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:56,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801967811] [2024-09-12 19:45:56,401 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801967811] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:56,401 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [321396472] [2024-09-12 19:45:56,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:56,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:56,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:56,403 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 19:45:56,405 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 19:45:56,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:45:56,448 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:56,512 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:56,513 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:56,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [321396472] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:56,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:45:56,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-09-12 19:45:56,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1104622429] [2024-09-12 19:45:56,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:56,514 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:56,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:56,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:56,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:56,515 INFO L87 Difference]: Start difference. First operand 300 states and 411 transitions. Second operand has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:56,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:56,607 INFO L93 Difference]: Finished difference Result 300 states and 411 transitions. [2024-09-12 19:45:56,607 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:45:56,607 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 58 [2024-09-12 19:45:56,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:56,609 INFO L225 Difference]: With dead ends: 300 [2024-09-12 19:45:56,609 INFO L226 Difference]: Without dead ends: 291 [2024-09-12 19:45:56,610 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:56,610 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 126 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 73 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 131 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 73 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:56,611 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [131 Valid, 139 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 73 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:56,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-09-12 19:45:56,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-09-12 19:45:56,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 222 states have (on average 1.5405405405405406) internal successors, (342), 263 states have internal predecessors, (342), 23 states have call successors, (23), 8 states have call predecessors, (23), 7 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:45:56,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 384 transitions. [2024-09-12 19:45:56,634 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 384 transitions. Word has length 58 [2024-09-12 19:45:56,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:56,634 INFO L474 AbstractCegarLoop]: Abstraction has 291 states and 384 transitions. [2024-09-12 19:45:56,634 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 14.333333333333334) internal successors, (43), 4 states have internal predecessors, (43), 2 states have call successors, (5), 1 states have call predecessors, (5), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:56,635 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:56,635 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 384 transitions. [2024-09-12 19:45:56,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 19:45:56,635 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:56,635 INFO L216 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:56,652 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-09-12 19:45:56,836 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 19:45:56,836 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:56,837 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:56,837 INFO L85 PathProgramCache]: Analyzing trace with hash -862964080, now seen corresponding path program 1 times [2024-09-12 19:45:56,837 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:56,837 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408862032] [2024-09-12 19:45:56,837 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:56,837 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:56,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,884 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,887 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:56,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,889 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:56,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,891 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,894 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:56,894 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:56,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408862032] [2024-09-12 19:45:56,894 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408862032] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:56,894 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [306711540] [2024-09-12 19:45:56,894 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:56,894 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:56,894 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:56,896 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 19:45:56,904 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 19:45:56,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:56,945 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:45:56,947 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:57,001 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:57,001 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:57,070 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:57,070 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [306711540] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:57,071 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:45:57,071 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-09-12 19:45:57,071 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2041226339] [2024-09-12 19:45:57,071 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:57,072 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:45:57,072 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:57,072 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:45:57,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:45:57,073 INFO L87 Difference]: Start difference. First operand 291 states and 384 transitions. Second operand has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 19:45:57,311 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:57,312 INFO L93 Difference]: Finished difference Result 328 states and 401 transitions. [2024-09-12 19:45:57,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:45:57,313 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) Word has length 59 [2024-09-12 19:45:57,313 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:57,315 INFO L225 Difference]: With dead ends: 328 [2024-09-12 19:45:57,316 INFO L226 Difference]: Without dead ends: 319 [2024-09-12 19:45:57,317 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 129 GetRequests, 122 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-09-12 19:45:57,317 INFO L434 NwaCegarLoop]: 103 mSDtfsCounter, 221 mSDsluCounter, 323 mSDsCounter, 0 mSdLazyCounter, 207 mSolverCounterSat, 42 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 426 SdHoareTripleChecker+Invalid, 249 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 42 IncrementalHoareTripleChecker+Valid, 207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:57,317 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 426 Invalid, 249 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [42 Valid, 207 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:57,318 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-09-12 19:45:57,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 282. [2024-09-12 19:45:57,359 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 282 states, 222 states have (on average 1.4189189189189189) internal successors, (315), 254 states have internal predecessors, (315), 23 states have call successors, (23), 8 states have call predecessors, (23), 7 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:45:57,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 357 transitions. [2024-09-12 19:45:57,361 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 357 transitions. Word has length 59 [2024-09-12 19:45:57,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:57,361 INFO L474 AbstractCegarLoop]: Abstraction has 282 states and 357 transitions. [2024-09-12 19:45:57,362 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 16.428571428571427) internal successors, (115), 7 states have internal predecessors, (115), 4 states have call successors, (12), 2 states have call predecessors, (12), 1 states have return successors, (10), 4 states have call predecessors, (10), 4 states have call successors, (10) [2024-09-12 19:45:57,362 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:57,362 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 357 transitions. [2024-09-12 19:45:57,363 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 19:45:57,363 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:57,363 INFO L216 NwaCegarLoop]: trace histogram [4, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:57,379 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 19:45:57,564 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 19:45:57,564 INFO L399 AbstractCegarLoop]: === Iteration 15 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:57,565 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:57,565 INFO L85 PathProgramCache]: Analyzing trace with hash -740058138, now seen corresponding path program 1 times [2024-09-12 19:45:57,565 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:57,565 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018930132] [2024-09-12 19:45:57,565 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:57,565 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:57,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:57,722 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:57,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:57,724 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:57,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:57,728 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:57,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:57,732 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:57,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:57,737 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:57,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:57,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018930132] [2024-09-12 19:45:57,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018930132] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:57,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1678901564] [2024-09-12 19:45:57,739 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:57,739 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:57,740 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:57,741 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 19:45:57,743 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 19:45:57,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:57,786 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:45:57,787 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:57,955 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 9 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2024-09-12 19:45:57,955 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:58,068 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2024-09-12 19:45:58,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1678901564] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:58,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:45:58,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 7] total 12 [2024-09-12 19:45:58,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876624860] [2024-09-12 19:45:58,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:58,069 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:58,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:58,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:58,070 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:45:58,070 INFO L87 Difference]: Start difference. First operand 282 states and 357 transitions. Second operand has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:58,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:58,915 INFO L93 Difference]: Finished difference Result 296 states and 370 transitions. [2024-09-12 19:45:58,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:58,918 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) Word has length 65 [2024-09-12 19:45:58,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:58,920 INFO L225 Difference]: With dead ends: 296 [2024-09-12 19:45:58,920 INFO L226 Difference]: Without dead ends: 294 [2024-09-12 19:45:58,921 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 145 GetRequests, 132 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=32, Invalid=124, Unknown=0, NotChecked=0, Total=156 [2024-09-12 19:45:58,921 INFO L434 NwaCegarLoop]: 32 mSDtfsCounter, 32 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 335 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 34 SdHoareTripleChecker+Valid, 130 SdHoareTripleChecker+Invalid, 336 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 335 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:58,921 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 130 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-09-12 19:45:58,922 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-09-12 19:45:58,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-09-12 19:45:58,971 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 294 states, 231 states have (on average 1.4025974025974026) internal successors, (324), 263 states have internal predecessors, (324), 23 states have call successors, (23), 11 states have call predecessors, (23), 10 states have return successors, (19), 19 states have call predecessors, (19), 19 states have call successors, (19) [2024-09-12 19:45:58,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 366 transitions. [2024-09-12 19:45:58,975 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 366 transitions. Word has length 65 [2024-09-12 19:45:58,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:58,975 INFO L474 AbstractCegarLoop]: Abstraction has 294 states and 366 transitions. [2024-09-12 19:45:58,975 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 6.833333333333333) internal successors, (41), 5 states have internal predecessors, (41), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 2 states have call predecessors, (4), 2 states have call successors, (4) [2024-09-12 19:45:58,976 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:58,976 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 366 transitions. [2024-09-12 19:45:58,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 19:45:58,977 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:58,977 INFO L216 NwaCegarLoop]: trace histogram [4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:58,995 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-09-12 19:45:59,178 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 19:45:59,178 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:59,178 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:59,178 INFO L85 PathProgramCache]: Analyzing trace with hash -878058857, now seen corresponding path program 1 times [2024-09-12 19:45:59,179 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:59,179 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [374750729] [2024-09-12 19:45:59,179 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:59,179 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:59,192 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1662904714] [2024-09-12 19:45:59,192 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:59,192 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:59,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:59,194 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 19:45:59,197 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 19:45:59,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:59,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:45:59,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:59,299 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:45:59,299 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:59,414 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 0 proven. 15 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2024-09-12 19:45:59,415 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:59,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [374750729] [2024-09-12 19:45:59,415 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:59,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1662904714] [2024-09-12 19:45:59,415 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1662904714] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:59,415 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:45:59,415 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 19:45:59,415 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [390467168] [2024-09-12 19:45:59,415 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:59,416 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:59,416 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:59,416 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:59,416 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:59,416 INFO L87 Difference]: Start difference. First operand 294 states and 366 transitions. Second operand has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 19:45:59,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:59,664 INFO L93 Difference]: Finished difference Result 371 states and 394 transitions. [2024-09-12 19:45:59,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:59,664 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) Word has length 72 [2024-09-12 19:45:59,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:59,666 INFO L225 Difference]: With dead ends: 371 [2024-09-12 19:45:59,667 INFO L226 Difference]: Without dead ends: 369 [2024-09-12 19:45:59,667 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=23, Unknown=0, NotChecked=0, Total=42 [2024-09-12 19:45:59,667 INFO L434 NwaCegarLoop]: 134 mSDtfsCounter, 260 mSDsluCounter, 261 mSDsCounter, 0 mSdLazyCounter, 157 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 268 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 157 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:59,667 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [268 Valid, 395 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 157 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:59,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-09-12 19:45:59,717 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 317. [2024-09-12 19:45:59,718 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 317 states, 252 states have (on average 1.3571428571428572) internal successors, (342), 284 states have internal predecessors, (342), 25 states have call successors, (25), 11 states have call predecessors, (25), 10 states have return successors, (21), 21 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 19:45:59,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 388 transitions. [2024-09-12 19:45:59,720 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 388 transitions. Word has length 72 [2024-09-12 19:45:59,720 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:59,720 INFO L474 AbstractCegarLoop]: Abstraction has 317 states and 388 transitions. [2024-09-12 19:45:59,721 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 20.0) internal successors, (100), 6 states have internal predecessors, (100), 5 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 5 states have call predecessors, (9), 5 states have call successors, (9) [2024-09-12 19:45:59,721 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:59,721 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 388 transitions. [2024-09-12 19:45:59,722 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 19:45:59,722 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:59,722 INFO L216 NwaCegarLoop]: trace histogram [5, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:59,741 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2024-09-12 19:45:59,922 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 19:45:59,923 INFO L399 AbstractCegarLoop]: === Iteration 17 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:59,923 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:59,923 INFO L85 PathProgramCache]: Analyzing trace with hash 1217295177, now seen corresponding path program 2 times [2024-09-12 19:45:59,924 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:59,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489220047] [2024-09-12 19:45:59,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:59,924 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:59,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:59,941 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1299875800] [2024-09-12 19:45:59,941 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:45:59,942 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:59,942 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:59,944 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 19:45:59,946 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 19:45:59,986 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:45:59,986 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:45:59,987 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:45:59,988 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:00,246 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 7 proven. 26 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:46:00,246 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:00,459 INFO L134 CoverageAnalysis]: Checked inductivity of 48 backedges. 16 proven. 17 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-09-12 19:46:00,460 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [489220047] [2024-09-12 19:46:00,460 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:00,460 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1299875800] [2024-09-12 19:46:00,460 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1299875800] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:00,460 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:46:00,460 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-09-12 19:46:00,460 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1560109005] [2024-09-12 19:46:00,460 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:00,461 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:46:00,461 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:00,461 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:46:00,462 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:46:00,462 INFO L87 Difference]: Start difference. First operand 317 states and 388 transitions. Second operand has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 16 states have internal predecessors, (110), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 19:46:01,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:01,235 INFO L93 Difference]: Finished difference Result 347 states and 406 transitions. [2024-09-12 19:46:01,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:46:01,236 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 16 states have internal predecessors, (110), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) Word has length 76 [2024-09-12 19:46:01,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:01,239 INFO L225 Difference]: With dead ends: 347 [2024-09-12 19:46:01,239 INFO L226 Difference]: Without dead ends: 287 [2024-09-12 19:46:01,240 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:46:01,242 INFO L434 NwaCegarLoop]: 26 mSDtfsCounter, 141 mSDsluCounter, 179 mSDsCounter, 0 mSdLazyCounter, 1086 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 142 SdHoareTripleChecker+Valid, 205 SdHoareTripleChecker+Invalid, 1141 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 1086 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:01,243 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 205 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-09-12 19:46:01,243 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-09-12 19:46:01,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 279. [2024-09-12 19:46:01,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 279 states, 227 states have (on average 1.1497797356828194) internal successors, (261), 247 states have internal predecessors, (261), 22 states have call successors, (22), 13 states have call predecessors, (22), 12 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 19:46:01,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 304 transitions. [2024-09-12 19:46:01,310 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 304 transitions. Word has length 76 [2024-09-12 19:46:01,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:01,310 INFO L474 AbstractCegarLoop]: Abstraction has 279 states and 304 transitions. [2024-09-12 19:46:01,311 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 6.470588235294118) internal successors, (110), 16 states have internal predecessors, (110), 6 states have call successors, (12), 3 states have call predecessors, (12), 2 states have return successors, (9), 5 states have call predecessors, (9), 6 states have call successors, (9) [2024-09-12 19:46:01,311 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:01,311 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 304 transitions. [2024-09-12 19:46:01,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-09-12 19:46:01,312 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:01,312 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:01,329 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-09-12 19:46:01,513 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 19:46:01,513 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:01,513 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:01,513 INFO L85 PathProgramCache]: Analyzing trace with hash -884656205, now seen corresponding path program 1 times [2024-09-12 19:46:01,513 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:01,513 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1155599145] [2024-09-12 19:46:01,513 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:01,514 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:01,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:01,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,563 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:01,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:01,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,565 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:01,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,567 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:01,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:01,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,569 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,572 INFO L134 CoverageAnalysis]: Checked inductivity of 93 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 83 trivial. 0 not checked. [2024-09-12 19:46:01,572 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:01,572 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1155599145] [2024-09-12 19:46:01,572 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1155599145] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:01,573 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:01,573 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:46:01,573 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084331010] [2024-09-12 19:46:01,573 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:01,573 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:46:01,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:01,574 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:46:01,574 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:46:01,574 INFO L87 Difference]: Start difference. First operand 279 states and 304 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:01,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:01,729 INFO L93 Difference]: Finished difference Result 279 states and 304 transitions. [2024-09-12 19:46:01,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:46:01,730 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 98 [2024-09-12 19:46:01,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:01,732 INFO L225 Difference]: With dead ends: 279 [2024-09-12 19:46:01,732 INFO L226 Difference]: Without dead ends: 276 [2024-09-12 19:46:01,732 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:46:01,733 INFO L434 NwaCegarLoop]: 51 mSDtfsCounter, 56 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 60 SdHoareTripleChecker+Valid, 96 SdHoareTripleChecker+Invalid, 95 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:01,733 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [60 Valid, 96 Invalid, 95 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:01,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-09-12 19:46:01,800 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-09-12 19:46:01,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 276 states, 227 states have (on average 1.1233480176211454) internal successors, (255), 244 states have internal predecessors, (255), 22 states have call successors, (22), 13 states have call predecessors, (22), 12 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 19:46:01,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 298 transitions. [2024-09-12 19:46:01,802 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 298 transitions. Word has length 98 [2024-09-12 19:46:01,802 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:01,802 INFO L474 AbstractCegarLoop]: Abstraction has 276 states and 298 transitions. [2024-09-12 19:46:01,803 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:01,803 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:01,803 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 298 transitions. [2024-09-12 19:46:01,804 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:46:01,804 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:01,804 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:01,804 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 19:46:01,804 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:01,804 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:01,804 INFO L85 PathProgramCache]: Analyzing trace with hash -1654538470, now seen corresponding path program 1 times [2024-09-12 19:46:01,805 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:01,805 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1065901136] [2024-09-12 19:46:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:01,805 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:01,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,843 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:01,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,845 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:01,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:01,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:01,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,849 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,852 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:01,857 INFO L134 CoverageAnalysis]: Checked inductivity of 94 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 84 trivial. 0 not checked. [2024-09-12 19:46:01,857 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:01,857 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1065901136] [2024-09-12 19:46:01,857 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1065901136] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:01,857 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:46:01,857 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:46:01,858 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989954098] [2024-09-12 19:46:01,858 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:01,858 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:46:01,858 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:01,859 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:46:01,859 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:46:01,859 INFO L87 Difference]: Start difference. First operand 276 states and 298 transitions. Second operand has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:02,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:02,006 INFO L93 Difference]: Finished difference Result 292 states and 317 transitions. [2024-09-12 19:46:02,006 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:46:02,007 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 99 [2024-09-12 19:46:02,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:02,008 INFO L225 Difference]: With dead ends: 292 [2024-09-12 19:46:02,008 INFO L226 Difference]: Without dead ends: 287 [2024-09-12 19:46:02,009 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:46:02,009 INFO L434 NwaCegarLoop]: 72 mSDtfsCounter, 46 mSDsluCounter, 92 mSDsCounter, 0 mSdLazyCounter, 80 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 93 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 80 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:02,009 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 164 Invalid, 93 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 80 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:02,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-09-12 19:46:02,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 271. [2024-09-12 19:46:02,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 225 states have (on average 1.0977777777777777) internal successors, (247), 239 states have internal predecessors, (247), 22 states have call successors, (22), 13 states have call predecessors, (22), 12 states have return successors, (21), 18 states have call predecessors, (21), 21 states have call successors, (21) [2024-09-12 19:46:02,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 290 transitions. [2024-09-12 19:46:02,054 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 290 transitions. Word has length 99 [2024-09-12 19:46:02,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:02,055 INFO L474 AbstractCegarLoop]: Abstraction has 271 states and 290 transitions. [2024-09-12 19:46:02,055 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 16.0) internal successors, (48), 3 states have internal predecessors, (48), 2 states have call successors, (6), 2 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-09-12 19:46:02,055 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:02,055 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 290 transitions. [2024-09-12 19:46:02,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 19:46:02,056 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:02,056 INFO L216 NwaCegarLoop]: trace histogram [6, 6, 6, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:02,056 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 19:46:02,057 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:02,057 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:02,057 INFO L85 PathProgramCache]: Analyzing trace with hash -873566596, now seen corresponding path program 1 times [2024-09-12 19:46:02,057 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:02,057 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1584870773] [2024-09-12 19:46:02,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:02,057 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:02,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,165 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:02,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,168 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:02,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,170 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:02,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,173 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:02,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,176 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:02,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,178 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:02,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,180 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:02,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,182 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:46:02,183 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:02,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1584870773] [2024-09-12 19:46:02,183 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1584870773] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:02,183 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1149096909] [2024-09-12 19:46:02,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:02,183 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:02,183 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:02,185 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 19:46:02,187 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 19:46:02,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:02,242 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:46:02,244 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:02,480 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:46:02,480 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:02,641 INFO L134 CoverageAnalysis]: Checked inductivity of 96 backedges. 0 proven. 36 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2024-09-12 19:46:02,642 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1149096909] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:02,642 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:02,642 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-09-12 19:46:02,643 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [945736125] [2024-09-12 19:46:02,643 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:02,644 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:46:02,644 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:02,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:46:02,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:46:02,645 INFO L87 Difference]: Start difference. First operand 271 states and 290 transitions. Second operand has 15 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 19:46:02,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:02,964 INFO L93 Difference]: Finished difference Result 317 states and 351 transitions. [2024-09-12 19:46:02,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:46:02,964 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) Word has length 101 [2024-09-12 19:46:02,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:02,966 INFO L225 Difference]: With dead ends: 317 [2024-09-12 19:46:02,967 INFO L226 Difference]: Without dead ends: 316 [2024-09-12 19:46:02,967 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 224 GetRequests, 207 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=136, Invalid=206, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:46:02,967 INFO L434 NwaCegarLoop]: 44 mSDtfsCounter, 92 mSDsluCounter, 198 mSDsCounter, 0 mSdLazyCounter, 267 mSolverCounterSat, 32 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 94 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 299 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 267 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:02,968 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 242 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:02,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-09-12 19:46:03,046 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 292. [2024-09-12 19:46:03,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292 states, 244 states have (on average 1.1024590163934427) internal successors, (269), 258 states have internal predecessors, (269), 24 states have call successors, (24), 13 states have call predecessors, (24), 12 states have return successors, (23), 20 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 19:46:03,047 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 316 transitions. [2024-09-12 19:46:03,047 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 316 transitions. Word has length 101 [2024-09-12 19:46:03,048 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:03,048 INFO L474 AbstractCegarLoop]: Abstraction has 292 states and 316 transitions. [2024-09-12 19:46:03,048 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 14 states have (on average 14.714285714285714) internal successors, (206), 14 states have internal predecessors, (206), 7 states have call successors, (21), 2 states have call predecessors, (21), 1 states have return successors, (19), 7 states have call predecessors, (19), 7 states have call successors, (19) [2024-09-12 19:46:03,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:03,048 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 316 transitions. [2024-09-12 19:46:03,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 19:46:03,049 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:03,049 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:03,061 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 19:46:03,250 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,11 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:03,250 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:03,250 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:03,250 INFO L85 PathProgramCache]: Analyzing trace with hash 808020485, now seen corresponding path program 1 times [2024-09-12 19:46:03,250 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:03,250 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55546623] [2024-09-12 19:46:03,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:03,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:03,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,383 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:03,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:03,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:03,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,391 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:03,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,392 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:03,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,394 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:03,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,396 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:03,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,398 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:03,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:03,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,401 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:03,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:03,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55546623] [2024-09-12 19:46:03,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55546623] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:03,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523977841] [2024-09-12 19:46:03,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:03,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:03,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:03,404 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 19:46:03,405 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 19:46:03,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:03,460 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:46:03,462 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:03,585 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 48 proven. 80 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2024-09-12 19:46:03,585 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:03,747 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 0 proven. 44 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:03,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523977841] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:03,747 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:03,747 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 18 [2024-09-12 19:46:03,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1211694751] [2024-09-12 19:46:03,748 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:03,748 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2024-09-12 19:46:03,748 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:03,749 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2024-09-12 19:46:03,749 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=87, Invalid=219, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:46:03,749 INFO L87 Difference]: Start difference. First operand 292 states and 316 transitions. Second operand has 18 states, 18 states have (on average 9.666666666666666) internal successors, (174), 17 states have internal predecessors, (174), 9 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (25), 8 states have call predecessors, (25), 6 states have call successors, (25) [2024-09-12 19:46:04,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:04,129 INFO L93 Difference]: Finished difference Result 477 states and 493 transitions. [2024-09-12 19:46:04,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2024-09-12 19:46:04,130 INFO L78 Accepts]: Start accepts. Automaton has has 18 states, 18 states have (on average 9.666666666666666) internal successors, (174), 17 states have internal predecessors, (174), 9 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (25), 8 states have call predecessors, (25), 6 states have call successors, (25) Word has length 127 [2024-09-12 19:46:04,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:04,138 INFO L225 Difference]: With dead ends: 477 [2024-09-12 19:46:04,138 INFO L226 Difference]: Without dead ends: 414 [2024-09-12 19:46:04,139 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 299 GetRequests, 267 SyntacticMatches, 0 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 276 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=292, Invalid=830, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:46:04,139 INFO L434 NwaCegarLoop]: 67 mSDtfsCounter, 232 mSDsluCounter, 557 mSDsCounter, 0 mSdLazyCounter, 178 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 241 SdHoareTripleChecker+Valid, 624 SdHoareTripleChecker+Invalid, 223 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 178 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:04,140 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [241 Valid, 624 Invalid, 223 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 178 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:04,140 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 414 states. [2024-09-12 19:46:04,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 414 to 370. [2024-09-12 19:46:04,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 370 states, 311 states have (on average 1.0964630225080385) internal successors, (341), 325 states have internal predecessors, (341), 29 states have call successors, (29), 19 states have call predecessors, (29), 18 states have return successors, (28), 25 states have call predecessors, (28), 28 states have call successors, (28) [2024-09-12 19:46:04,213 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 370 states to 370 states and 398 transitions. [2024-09-12 19:46:04,213 INFO L78 Accepts]: Start accepts. Automaton has 370 states and 398 transitions. Word has length 127 [2024-09-12 19:46:04,214 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:04,214 INFO L474 AbstractCegarLoop]: Abstraction has 370 states and 398 transitions. [2024-09-12 19:46:04,214 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 9.666666666666666) internal successors, (174), 17 states have internal predecessors, (174), 9 states have call successors, (27), 8 states have call predecessors, (27), 7 states have return successors, (25), 8 states have call predecessors, (25), 6 states have call successors, (25) [2024-09-12 19:46:04,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:04,214 INFO L276 IsEmpty]: Start isEmpty. Operand 370 states and 398 transitions. [2024-09-12 19:46:04,215 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 19:46:04,215 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:04,215 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:04,232 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 19:46:04,419 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20,12 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:04,419 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:04,420 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:04,420 INFO L85 PathProgramCache]: Analyzing trace with hash 1473912839, now seen corresponding path program 1 times [2024-09-12 19:46:04,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:04,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1668118676] [2024-09-12 19:46:04,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:04,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:04,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:46:04,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [501199730] [2024-09-12 19:46:04,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:04,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:04,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:04,442 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 19:46:04,443 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 19:46:04,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:04,502 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:46:04,504 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:04,608 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:04,609 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:04,792 INFO L134 CoverageAnalysis]: Checked inductivity of 184 backedges. 0 proven. 72 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:04,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:04,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1668118676] [2024-09-12 19:46:04,792 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:04,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [501199730] [2024-09-12 19:46:04,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [501199730] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:04,792 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:46:04,792 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:46:04,792 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369358737] [2024-09-12 19:46:04,792 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:04,793 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:46:04,793 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:04,794 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:46:04,794 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:46:04,794 INFO L87 Difference]: Start difference. First operand 370 states and 398 transitions. Second operand has 8 states, 7 states have (on average 24.285714285714285) internal successors, (170), 8 states have internal predecessors, (170), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 19:46:05,075 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:05,076 INFO L93 Difference]: Finished difference Result 415 states and 448 transitions. [2024-09-12 19:46:05,076 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:46:05,076 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 24.285714285714285) internal successors, (170), 8 states have internal predecessors, (170), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) Word has length 127 [2024-09-12 19:46:05,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:05,079 INFO L225 Difference]: With dead ends: 415 [2024-09-12 19:46:05,079 INFO L226 Difference]: Without dead ends: 413 [2024-09-12 19:46:05,079 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:46:05,079 INFO L434 NwaCegarLoop]: 107 mSDtfsCounter, 191 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 197 SdHoareTripleChecker+Valid, 447 SdHoareTripleChecker+Invalid, 265 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:05,080 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [197 Valid, 447 Invalid, 265 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:05,080 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 413 states. [2024-09-12 19:46:05,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 413 to 387. [2024-09-12 19:46:05,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 325 states have (on average 1.0861538461538462) internal successors, (353), 339 states have internal predecessors, (353), 32 states have call successors, (32), 19 states have call predecessors, (32), 18 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 19:46:05,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 416 transitions. [2024-09-12 19:46:05,158 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 416 transitions. Word has length 127 [2024-09-12 19:46:05,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:05,159 INFO L474 AbstractCegarLoop]: Abstraction has 387 states and 416 transitions. [2024-09-12 19:46:05,159 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 24.285714285714285) internal successors, (170), 8 states have internal predecessors, (170), 7 states have call successors, (18), 1 states have call predecessors, (18), 1 states have return successors, (17), 7 states have call predecessors, (17), 7 states have call successors, (17) [2024-09-12 19:46:05,159 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:05,159 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 416 transitions. [2024-09-12 19:46:05,160 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-09-12 19:46:05,160 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:05,160 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:05,173 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-09-12 19:46:05,360 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable21 [2024-09-12 19:46:05,361 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:05,361 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:05,361 INFO L85 PathProgramCache]: Analyzing trace with hash -908966935, now seen corresponding path program 1 times [2024-09-12 19:46:05,361 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:05,361 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [159263664] [2024-09-12 19:46:05,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:05,361 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:05,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,480 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:05,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,482 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:05,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,485 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:05,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,488 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:05,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,491 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:05,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,493 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:05,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,496 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,497 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:05,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,499 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:05,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,502 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:05,505 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:05,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [159263664] [2024-09-12 19:46:05,505 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [159263664] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:05,505 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1586222594] [2024-09-12 19:46:05,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:05,506 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:05,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:05,507 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:05,508 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-09-12 19:46:05,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:05,564 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:46:05,565 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:05,805 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:05,805 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:05,969 INFO L134 CoverageAnalysis]: Checked inductivity of 188 backedges. 0 proven. 76 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:05,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1586222594] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:05,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:05,969 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 16 [2024-09-12 19:46:05,969 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [878799719] [2024-09-12 19:46:05,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:05,970 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:46:05,970 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:05,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:46:05,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:46:05,972 INFO L87 Difference]: Start difference. First operand 387 states and 416 transitions. Second operand has 17 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 9 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2024-09-12 19:46:06,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:06,381 INFO L93 Difference]: Finished difference Result 404 states and 435 transitions. [2024-09-12 19:46:06,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:46:06,381 INFO L78 Accepts]: Start accepts. Automaton has has 17 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 9 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) Word has length 129 [2024-09-12 19:46:06,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:06,383 INFO L225 Difference]: With dead ends: 404 [2024-09-12 19:46:06,383 INFO L226 Difference]: Without dead ends: 400 [2024-09-12 19:46:06,384 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=192, Invalid=314, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:46:06,384 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 166 mSDsluCounter, 309 mSDsCounter, 0 mSdLazyCounter, 326 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 169 SdHoareTripleChecker+Valid, 356 SdHoareTripleChecker+Invalid, 381 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 326 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:06,385 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [169 Valid, 356 Invalid, 381 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 326 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:46:06,385 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-09-12 19:46:06,491 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 387. [2024-09-12 19:46:06,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 387 states, 327 states have (on average 1.0611620795107033) internal successors, (347), 339 states have internal predecessors, (347), 32 states have call successors, (32), 19 states have call predecessors, (32), 18 states have return successors, (31), 28 states have call predecessors, (31), 31 states have call successors, (31) [2024-09-12 19:46:06,493 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 387 states to 387 states and 410 transitions. [2024-09-12 19:46:06,494 INFO L78 Accepts]: Start accepts. Automaton has 387 states and 410 transitions. Word has length 129 [2024-09-12 19:46:06,494 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:06,494 INFO L474 AbstractCegarLoop]: Abstraction has 387 states and 410 transitions. [2024-09-12 19:46:06,495 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 16 states have (on average 15.125) internal successors, (242), 16 states have internal predecessors, (242), 9 states have call successors, (25), 2 states have call predecessors, (25), 1 states have return successors, (23), 9 states have call predecessors, (23), 9 states have call successors, (23) [2024-09-12 19:46:06,495 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:06,495 INFO L276 IsEmpty]: Start isEmpty. Operand 387 states and 410 transitions. [2024-09-12 19:46:06,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-09-12 19:46:06,496 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:06,496 INFO L216 NwaCegarLoop]: trace histogram [8, 8, 8, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:06,510 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:06,700 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22,14 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:06,700 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:06,701 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:06,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1638860853, now seen corresponding path program 1 times [2024-09-12 19:46:06,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:06,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1801515347] [2024-09-12 19:46:06,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:06,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:06,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:06,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,848 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:06,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,850 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,853 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:06,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,856 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:06,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,858 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:06,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,860 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:06,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,862 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:06,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,865 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:06,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,869 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 0 proven. 80 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:06,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:06,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1801515347] [2024-09-12 19:46:06,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1801515347] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:06,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1356385681] [2024-09-12 19:46:06,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:06,869 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:06,870 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:06,872 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:06,873 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2024-09-12 19:46:06,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:06,923 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:46:06,925 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:07,240 INFO L134 CoverageAnalysis]: Checked inductivity of 192 backedges. 80 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:46:07,241 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:46:07,241 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1356385681] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:07,241 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:46:07,241 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2024-09-12 19:46:07,241 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1859250517] [2024-09-12 19:46:07,241 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:07,242 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:46:07,242 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:07,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:46:07,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:46:07,242 INFO L87 Difference]: Start difference. First operand 387 states and 410 transitions. Second operand has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:46:07,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:07,520 INFO L93 Difference]: Finished difference Result 387 states and 410 transitions. [2024-09-12 19:46:07,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:46:07,521 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) Word has length 131 [2024-09-12 19:46:07,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:07,523 INFO L225 Difference]: With dead ends: 387 [2024-09-12 19:46:07,523 INFO L226 Difference]: Without dead ends: 315 [2024-09-12 19:46:07,524 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 142 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:46:07,524 INFO L434 NwaCegarLoop]: 91 mSDtfsCounter, 71 mSDsluCounter, 176 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 267 SdHoareTripleChecker+Invalid, 203 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:07,524 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 267 Invalid, 203 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:46:07,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2024-09-12 19:46:07,598 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 315. [2024-09-12 19:46:07,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 315 states, 269 states have (on average 1.0408921933085502) internal successors, (280), 276 states have internal predecessors, (280), 24 states have call successors, (24), 15 states have call predecessors, (24), 14 states have return successors, (23), 23 states have call predecessors, (23), 23 states have call successors, (23) [2024-09-12 19:46:07,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 315 states to 315 states and 327 transitions. [2024-09-12 19:46:07,599 INFO L78 Accepts]: Start accepts. Automaton has 315 states and 327 transitions. Word has length 131 [2024-09-12 19:46:07,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:07,599 INFO L474 AbstractCegarLoop]: Abstraction has 315 states and 327 transitions. [2024-09-12 19:46:07,600 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 7 states have (on average 13.0) internal successors, (91), 8 states have internal predecessors, (91), 4 states have call successors, (10), 1 states have call predecessors, (10), 1 states have return successors, (9), 4 states have call predecessors, (9), 4 states have call successors, (9) [2024-09-12 19:46:07,600 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:07,600 INFO L276 IsEmpty]: Start isEmpty. Operand 315 states and 327 transitions. [2024-09-12 19:46:07,601 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2024-09-12 19:46:07,601 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:07,601 INFO L216 NwaCegarLoop]: trace histogram [13, 13, 13, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:07,616 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:07,801 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-09-12 19:46:07,802 INFO L399 AbstractCegarLoop]: === Iteration 25 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:07,802 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:07,802 INFO L85 PathProgramCache]: Analyzing trace with hash -1986686408, now seen corresponding path program 2 times [2024-09-12 19:46:07,802 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:07,802 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1686125827] [2024-09-12 19:46:07,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:07,802 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:07,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:46:07,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [26581367] [2024-09-12 19:46:07,826 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:46:07,826 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:07,827 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:07,828 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:07,831 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2024-09-12 19:46:07,909 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:46:07,909 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:07,910 INFO L262 TraceCheckSpWp]: Trace formula consists of 344 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:46:07,913 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:08,074 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:46:08,074 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:08,359 INFO L134 CoverageAnalysis]: Checked inductivity of 588 backedges. 0 proven. 276 refuted. 0 times theorem prover too weak. 312 trivial. 0 not checked. [2024-09-12 19:46:08,359 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:08,359 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1686125827] [2024-09-12 19:46:08,360 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:08,360 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [26581367] [2024-09-12 19:46:08,360 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [26581367] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:08,360 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:46:08,360 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 11 [2024-09-12 19:46:08,360 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994606592] [2024-09-12 19:46:08,360 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:08,360 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:46:08,360 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:08,361 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:46:08,361 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=86, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:46:08,361 INFO L87 Difference]: Start difference. First operand 315 states and 327 transitions. Second operand has 12 states, 11 states have (on average 27.09090909090909) internal successors, (298), 12 states have internal predecessors, (298), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-09-12 19:46:08,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:08,943 INFO L93 Difference]: Finished difference Result 539 states and 575 transitions. [2024-09-12 19:46:08,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:46:08,943 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 27.09090909090909) internal successors, (298), 12 states have internal predecessors, (298), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) Word has length 216 [2024-09-12 19:46:08,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:08,946 INFO L225 Difference]: With dead ends: 539 [2024-09-12 19:46:08,946 INFO L226 Difference]: Without dead ends: 537 [2024-09-12 19:46:08,946 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 435 GetRequests, 421 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=94, Invalid=146, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:46:08,947 INFO L434 NwaCegarLoop]: 154 mSDtfsCounter, 304 mSDsluCounter, 790 mSDsCounter, 0 mSdLazyCounter, 578 mSolverCounterSat, 33 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 310 SdHoareTripleChecker+Valid, 944 SdHoareTripleChecker+Invalid, 611 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 33 IncrementalHoareTripleChecker+Valid, 578 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:08,947 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [310 Valid, 944 Invalid, 611 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [33 Valid, 578 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:46:08,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 537 states. [2024-09-12 19:46:09,061 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 537 to 467. [2024-09-12 19:46:09,062 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 467 states, 409 states have (on average 1.0684596577017116) internal successors, (437), 416 states have internal predecessors, (437), 36 states have call successors, (36), 15 states have call predecessors, (36), 14 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-09-12 19:46:09,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 508 transitions. [2024-09-12 19:46:09,064 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 508 transitions. Word has length 216 [2024-09-12 19:46:09,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:09,065 INFO L474 AbstractCegarLoop]: Abstraction has 467 states and 508 transitions. [2024-09-12 19:46:09,065 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 27.09090909090909) internal successors, (298), 12 states have internal predecessors, (298), 11 states have call successors, (28), 1 states have call predecessors, (28), 1 states have return successors, (27), 11 states have call predecessors, (27), 11 states have call successors, (27) [2024-09-12 19:46:09,065 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:09,065 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 508 transitions. [2024-09-12 19:46:09,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2024-09-12 19:46:09,066 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:09,066 INFO L216 NwaCegarLoop]: trace histogram [15, 15, 15, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:09,081 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:09,270 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable24 [2024-09-12 19:46:09,270 INFO L399 AbstractCegarLoop]: === Iteration 26 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:09,271 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:09,271 INFO L85 PathProgramCache]: Analyzing trace with hash 801967739, now seen corresponding path program 2 times [2024-09-12 19:46:09,271 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:09,271 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1624957148] [2024-09-12 19:46:09,271 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:09,271 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:09,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:09,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:09,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,608 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:09,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,611 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:09,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,613 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:09,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,615 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:09,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,617 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:09,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,619 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:09,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,621 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:09,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,624 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:46:09,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,628 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:46:09,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,630 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:46:09,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,633 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:46:09,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,635 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 19:46:09,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,638 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 19:46:09,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,640 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 19:46:09,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:09,643 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 420 trivial. 0 not checked. [2024-09-12 19:46:09,643 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:09,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1624957148] [2024-09-12 19:46:09,643 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1624957148] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:09,643 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [673063061] [2024-09-12 19:46:09,644 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:46:09,644 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:09,644 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:09,645 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:09,647 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2024-09-12 19:46:09,725 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:46:09,726 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:09,727 INFO L262 TraceCheckSpWp]: Trace formula consists of 385 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:46:09,730 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:10,000 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 24 proven. 24 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2024-09-12 19:46:10,000 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:10,263 INFO L134 CoverageAnalysis]: Checked inductivity of 780 backedges. 0 proven. 48 refuted. 0 times theorem prover too weak. 732 trivial. 0 not checked. [2024-09-12 19:46:10,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [673063061] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:10,263 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:10,264 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 5, 5] total 20 [2024-09-12 19:46:10,264 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1264406569] [2024-09-12 19:46:10,264 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:10,264 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-09-12 19:46:10,264 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:10,265 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-09-12 19:46:10,265 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=68, Invalid=352, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:46:10,266 INFO L87 Difference]: Start difference. First operand 467 states and 508 transitions. Second operand has 21 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 10 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2024-09-12 19:46:11,334 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:11,334 INFO L93 Difference]: Finished difference Result 467 states and 508 transitions. [2024-09-12 19:46:11,335 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-09-12 19:46:11,335 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 10 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) Word has length 245 [2024-09-12 19:46:11,335 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:11,338 INFO L225 Difference]: With dead ends: 467 [2024-09-12 19:46:11,338 INFO L226 Difference]: Without dead ends: 466 [2024-09-12 19:46:11,339 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 557 GetRequests, 513 SyntacticMatches, 0 SemanticMatches, 44 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 368 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=411, Invalid=1659, Unknown=0, NotChecked=0, Total=2070 [2024-09-12 19:46:11,339 INFO L434 NwaCegarLoop]: 111 mSDtfsCounter, 296 mSDsluCounter, 1021 mSDsCounter, 0 mSdLazyCounter, 961 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 296 SdHoareTripleChecker+Valid, 1132 SdHoareTripleChecker+Invalid, 1031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 961 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:11,339 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [296 Valid, 1132 Invalid, 1031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 961 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:46:11,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 466 states. [2024-09-12 19:46:11,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 466 to 466. [2024-09-12 19:46:11,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 466 states, 409 states have (on average 1.0537897310513447) internal successors, (431), 415 states have internal predecessors, (431), 36 states have call successors, (36), 15 states have call predecessors, (36), 14 states have return successors, (35), 35 states have call predecessors, (35), 35 states have call successors, (35) [2024-09-12 19:46:11,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 502 transitions. [2024-09-12 19:46:11,480 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 502 transitions. Word has length 245 [2024-09-12 19:46:11,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:11,480 INFO L474 AbstractCegarLoop]: Abstraction has 466 states and 502 transitions. [2024-09-12 19:46:11,481 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 20 states have (on average 13.15) internal successors, (263), 20 states have internal predecessors, (263), 10 states have call successors, (26), 2 states have call predecessors, (26), 1 states have return successors, (24), 10 states have call predecessors, (24), 10 states have call successors, (24) [2024-09-12 19:46:11,481 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:11,481 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 502 transitions. [2024-09-12 19:46:11,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 274 [2024-09-12 19:46:11,482 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:11,483 INFO L216 NwaCegarLoop]: trace histogram [17, 17, 17, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:11,499 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Ended with exit code 0 [2024-09-12 19:46:11,683 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,17 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:11,683 INFO L399 AbstractCegarLoop]: === Iteration 27 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:11,683 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:11,684 INFO L85 PathProgramCache]: Analyzing trace with hash -1708064920, now seen corresponding path program 2 times [2024-09-12 19:46:11,684 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:11,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [230195291] [2024-09-12 19:46:11,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:11,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:11,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,072 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:12,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,074 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:12,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,077 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:12,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,079 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:12,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,082 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:12,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,084 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:12,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,086 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:12,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,088 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:12,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,090 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:12,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,091 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:46:12,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,093 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:46:12,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:46:12,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,099 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:46:12,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 19:46:12,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,103 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 19:46:12,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,105 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 19:46:12,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,107 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 19:46:12,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,111 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 19:46:12,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:12,116 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 19:46:12,116 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:12,116 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [230195291] [2024-09-12 19:46:12,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [230195291] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:12,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1185721848] [2024-09-12 19:46:12,117 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:46:12,117 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:12,117 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:12,118 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:12,120 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2024-09-12 19:46:12,200 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:46:12,200 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:12,201 INFO L262 TraceCheckSpWp]: Trace formula consists of 426 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-09-12 19:46:12,204 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:12,755 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 19:46:12,755 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:13,150 INFO L134 CoverageAnalysis]: Checked inductivity of 1004 backedges. 0 proven. 460 refuted. 0 times theorem prover too weak. 544 trivial. 0 not checked. [2024-09-12 19:46:13,150 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1185721848] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:13,150 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:13,150 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 12, 12] total 35 [2024-09-12 19:46:13,151 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1646491739] [2024-09-12 19:46:13,151 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:13,151 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 36 states [2024-09-12 19:46:13,151 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:13,153 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 36 interpolants. [2024-09-12 19:46:13,153 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=295, Invalid=965, Unknown=0, NotChecked=0, Total=1260 [2024-09-12 19:46:13,153 INFO L87 Difference]: Start difference. First operand 466 states and 502 transitions. Second operand has 36 states, 35 states have (on average 15.914285714285715) internal successors, (557), 35 states have internal predecessors, (557), 19 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 19 states have call predecessors, (52), 19 states have call successors, (52) [2024-09-12 19:46:14,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:14,516 INFO L93 Difference]: Finished difference Result 644 states and 702 transitions. [2024-09-12 19:46:14,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-09-12 19:46:14,516 INFO L78 Accepts]: Start accepts. Automaton has has 36 states, 35 states have (on average 15.914285714285715) internal successors, (557), 35 states have internal predecessors, (557), 19 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 19 states have call predecessors, (52), 19 states have call successors, (52) Word has length 273 [2024-09-12 19:46:14,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:14,520 INFO L225 Difference]: With dead ends: 644 [2024-09-12 19:46:14,520 INFO L226 Difference]: Without dead ends: 630 [2024-09-12 19:46:14,521 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 615 GetRequests, 559 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 852 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=989, Invalid=2317, Unknown=0, NotChecked=0, Total=3306 [2024-09-12 19:46:14,521 INFO L434 NwaCegarLoop]: 111 mSDtfsCounter, 704 mSDsluCounter, 1222 mSDsCounter, 0 mSdLazyCounter, 1207 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 707 SdHoareTripleChecker+Valid, 1333 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 1207 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:14,522 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [707 Valid, 1333 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 1207 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:46:14,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 630 states. [2024-09-12 19:46:14,726 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 630 to 557. [2024-09-12 19:46:14,727 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 557 states, 491 states have (on average 1.0570264765784114) internal successors, (519), 497 states have internal predecessors, (519), 45 states have call successors, (45), 15 states have call predecessors, (45), 14 states have return successors, (44), 44 states have call predecessors, (44), 44 states have call successors, (44) [2024-09-12 19:46:14,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 557 states to 557 states and 608 transitions. [2024-09-12 19:46:14,729 INFO L78 Accepts]: Start accepts. Automaton has 557 states and 608 transitions. Word has length 273 [2024-09-12 19:46:14,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:14,731 INFO L474 AbstractCegarLoop]: Abstraction has 557 states and 608 transitions. [2024-09-12 19:46:14,732 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 36 states, 35 states have (on average 15.914285714285715) internal successors, (557), 35 states have internal predecessors, (557), 19 states have call successors, (54), 2 states have call predecessors, (54), 1 states have return successors, (52), 19 states have call predecessors, (52), 19 states have call successors, (52) [2024-09-12 19:46:14,733 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:14,733 INFO L276 IsEmpty]: Start isEmpty. Operand 557 states and 608 transitions. [2024-09-12 19:46:14,734 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 297 [2024-09-12 19:46:14,734 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:14,734 INFO L216 NwaCegarLoop]: trace histogram [18, 18, 18, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:14,751 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:14,935 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-09-12 19:46:14,935 INFO L399 AbstractCegarLoop]: === Iteration 28 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:14,935 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:14,936 INFO L85 PathProgramCache]: Analyzing trace with hash -1180024422, now seen corresponding path program 2 times [2024-09-12 19:46:14,936 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:14,936 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [603473195] [2024-09-12 19:46:14,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:14,936 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:15,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,325 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:15,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:15,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:15,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,331 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:15,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:15,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:15,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:15,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:46:15,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,341 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:46:15,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:46:15,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,344 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:46:15,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 19:46:15,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 19:46:15,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 19:46:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,351 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 19:46:15,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 19:46:15,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,354 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 19:46:15,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:15,357 INFO L134 CoverageAnalysis]: Checked inductivity of 1170 backedges. 0 proven. 558 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:46:15,357 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:15,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [603473195] [2024-09-12 19:46:15,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [603473195] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:15,357 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1474559104] [2024-09-12 19:46:15,358 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:46:15,358 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:15,358 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:15,359 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:15,362 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2024-09-12 19:46:15,449 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:46:15,449 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:15,451 INFO L262 TraceCheckSpWp]: Trace formula consists of 460 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-09-12 19:46:15,456 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:15,771 INFO L134 CoverageAnalysis]: Checked inductivity of 1170 backedges. 0 proven. 1098 refuted. 0 times theorem prover too weak. 72 trivial. 0 not checked. [2024-09-12 19:46:15,771 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:16,168 INFO L134 CoverageAnalysis]: Checked inductivity of 1170 backedges. 0 proven. 558 refuted. 0 times theorem prover too weak. 612 trivial. 0 not checked. [2024-09-12 19:46:16,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1474559104] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:16,168 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:16,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 15, 15] total 33 [2024-09-12 19:46:16,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1928842183] [2024-09-12 19:46:16,168 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:16,169 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 34 states [2024-09-12 19:46:16,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:16,170 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 34 interpolants. [2024-09-12 19:46:16,171 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=303, Invalid=819, Unknown=0, NotChecked=0, Total=1122 [2024-09-12 19:46:16,171 INFO L87 Difference]: Start difference. First operand 557 states and 608 transitions. Second operand has 34 states, 33 states have (on average 13.121212121212121) internal successors, (433), 33 states have internal predecessors, (433), 16 states have call successors, (59), 11 states have call predecessors, (59), 10 states have return successors, (57), 15 states have call predecessors, (57), 13 states have call successors, (57) [2024-09-12 19:46:17,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:17,191 INFO L93 Difference]: Finished difference Result 782 states and 816 transitions. [2024-09-12 19:46:17,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 59 states. [2024-09-12 19:46:17,192 INFO L78 Accepts]: Start accepts. Automaton has has 34 states, 33 states have (on average 13.121212121212121) internal successors, (433), 33 states have internal predecessors, (433), 16 states have call successors, (59), 11 states have call predecessors, (59), 10 states have return successors, (57), 15 states have call predecessors, (57), 13 states have call successors, (57) Word has length 296 [2024-09-12 19:46:17,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:17,195 INFO L225 Difference]: With dead ends: 782 [2024-09-12 19:46:17,195 INFO L226 Difference]: Without dead ends: 758 [2024-09-12 19:46:17,197 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 691 GetRequests, 619 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1434 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=1340, Invalid=4062, Unknown=0, NotChecked=0, Total=5402 [2024-09-12 19:46:17,197 INFO L434 NwaCegarLoop]: 58 mSDtfsCounter, 438 mSDsluCounter, 823 mSDsCounter, 0 mSdLazyCounter, 334 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 453 SdHoareTripleChecker+Valid, 881 SdHoareTripleChecker+Invalid, 443 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 334 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:17,198 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [453 Valid, 881 Invalid, 443 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 334 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:46:17,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 758 states. [2024-09-12 19:46:17,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 758 to 725. [2024-09-12 19:46:17,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 630 states have (on average 1.042857142857143) internal successors, (657), 641 states have internal predecessors, (657), 58 states have call successors, (58), 31 states have call predecessors, (58), 30 states have return successors, (57), 52 states have call predecessors, (57), 57 states have call successors, (57) [2024-09-12 19:46:17,389 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 772 transitions. [2024-09-12 19:46:17,390 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 772 transitions. Word has length 296 [2024-09-12 19:46:17,391 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:17,391 INFO L474 AbstractCegarLoop]: Abstraction has 725 states and 772 transitions. [2024-09-12 19:46:17,391 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 34 states, 33 states have (on average 13.121212121212121) internal successors, (433), 33 states have internal predecessors, (433), 16 states have call successors, (59), 11 states have call predecessors, (59), 10 states have return successors, (57), 15 states have call predecessors, (57), 13 states have call successors, (57) [2024-09-12 19:46:17,391 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:17,391 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 772 transitions. [2024-09-12 19:46:17,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2024-09-12 19:46:17,393 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:17,393 INFO L216 NwaCegarLoop]: trace histogram [20, 20, 20, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:17,408 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Ended with exit code 0 [2024-09-12 19:46:17,597 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-09-12 19:46:17,597 INFO L399 AbstractCegarLoop]: === Iteration 29 === Targeting mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:17,598 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:17,598 INFO L85 PathProgramCache]: Analyzing trace with hash -602179493, now seen corresponding path program 2 times [2024-09-12 19:46:17,598 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:17,598 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1209448646] [2024-09-12 19:46:17,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:17,598 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:46:17,635 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1774965087] [2024-09-12 19:46:17,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:46:17,635 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:17,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:17,637 INFO L229 MonitoredProcess]: Starting monitored process 20 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:17,638 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Waiting until timeout for monitored process [2024-09-12 19:46:17,727 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:46:17,727 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:17,729 INFO L262 TraceCheckSpWp]: Trace formula consists of 493 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-09-12 19:46:17,739 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:17,958 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 19:46:17,958 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:18,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1408 backedges. 0 proven. 648 refuted. 0 times theorem prover too weak. 760 trivial. 0 not checked. [2024-09-12 19:46:18,379 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:18,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1209448646] [2024-09-12 19:46:18,380 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:18,380 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1774965087] [2024-09-12 19:46:18,380 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1774965087] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:18,380 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:46:18,380 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 15 [2024-09-12 19:46:18,380 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172615793] [2024-09-12 19:46:18,380 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:18,381 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 16 states [2024-09-12 19:46:18,381 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:18,381 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2024-09-12 19:46:18,382 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=78, Invalid=162, Unknown=0, NotChecked=0, Total=240 [2024-09-12 19:46:18,382 INFO L87 Difference]: Start difference. First operand 725 states and 772 transitions. Second operand has 16 states, 15 states have (on average 28.933333333333334) internal successors, (434), 16 states have internal predecessors, (434), 15 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 15 states have call predecessors, (41), 15 states have call successors, (41) [2024-09-12 19:46:19,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:19,246 INFO L93 Difference]: Finished difference Result 778 states and 823 transitions. [2024-09-12 19:46:19,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2024-09-12 19:46:19,247 INFO L78 Accepts]: Start accepts. Automaton has has 16 states, 15 states have (on average 28.933333333333334) internal successors, (434), 16 states have internal predecessors, (434), 15 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 15 states have call predecessors, (41), 15 states have call successors, (41) Word has length 319 [2024-09-12 19:46:19,247 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:19,250 INFO L225 Difference]: With dead ends: 778 [2024-09-12 19:46:19,250 INFO L226 Difference]: Without dead ends: 728 [2024-09-12 19:46:19,251 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 643 GetRequests, 623 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=174, Invalid=288, Unknown=0, NotChecked=0, Total=462 [2024-09-12 19:46:19,251 INFO L434 NwaCegarLoop]: 205 mSDtfsCounter, 490 mSDsluCounter, 1466 mSDsCounter, 0 mSdLazyCounter, 997 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 494 SdHoareTripleChecker+Valid, 1671 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 997 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:19,251 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [494 Valid, 1671 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 997 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-09-12 19:46:19,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 728 states. [2024-09-12 19:46:19,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 728 to 708. [2024-09-12 19:46:19,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 708 states, 617 states have (on average 1.0291734197730957) internal successors, (635), 625 states have internal predecessors, (635), 54 states have call successors, (54), 31 states have call predecessors, (54), 30 states have return successors, (53), 51 states have call predecessors, (53), 53 states have call successors, (53) [2024-09-12 19:46:19,502 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 708 states to 708 states and 742 transitions. [2024-09-12 19:46:19,503 INFO L78 Accepts]: Start accepts. Automaton has 708 states and 742 transitions. Word has length 319 [2024-09-12 19:46:19,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:19,503 INFO L474 AbstractCegarLoop]: Abstraction has 708 states and 742 transitions. [2024-09-12 19:46:19,503 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 16 states, 15 states have (on average 28.933333333333334) internal successors, (434), 16 states have internal predecessors, (434), 15 states have call successors, (42), 1 states have call predecessors, (42), 1 states have return successors, (41), 15 states have call predecessors, (41), 15 states have call successors, (41) [2024-09-12 19:46:19,504 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:19,504 INFO L276 IsEmpty]: Start isEmpty. Operand 708 states and 742 transitions. [2024-09-12 19:46:19,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-09-12 19:46:19,507 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:19,507 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:19,525 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (20)] Ended with exit code 0 [2024-09-12 19:46:19,707 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-09-12 19:46:19,707 INFO L399 AbstractCegarLoop]: === Iteration 30 === Targeting mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:19,708 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:19,708 INFO L85 PathProgramCache]: Analyzing trace with hash 658986024, now seen corresponding path program 1 times [2024-09-12 19:46:19,708 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:19,708 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46747708] [2024-09-12 19:46:19,708 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:19,708 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:19,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,553 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,556 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:20,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,557 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:20,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,559 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:20,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,561 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:20,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,562 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:20,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,564 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:20,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,566 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,568 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:20,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,570 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:46:20,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,571 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:46:20,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,573 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:46:20,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,575 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:46:20,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,576 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 19:46:20,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,578 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 19:46:20,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,580 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 19:46:20,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,581 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 19:46:20,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,583 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 19:46:20,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,585 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 19:46:20,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,586 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 19:46:20,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,588 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 19:46:20,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,590 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 19:46:20,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 19:46:20,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,593 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-09-12 19:46:20,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,595 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 19:46:20,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 19:46:20,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,598 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-09-12 19:46:20,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,600 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2024-09-12 19:46:20,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,601 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-09-12 19:46:20,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,603 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-09-12 19:46:20,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,605 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-09-12 19:46:20,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,606 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2024-09-12 19:46:20,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,609 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 1660 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 19:46:20,610 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:20,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46747708] [2024-09-12 19:46:20,610 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46747708] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:20,610 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1118897524] [2024-09-12 19:46:20,610 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:20,610 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:20,611 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:20,612 INFO L229 MonitoredProcess]: Starting monitored process 21 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:20,614 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Waiting until timeout for monitored process [2024-09-12 19:46:20,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:20,738 INFO L262 TraceCheckSpWp]: Trace formula consists of 758 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-09-12 19:46:20,745 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:21,176 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 120 proven. 3280 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-09-12 19:46:21,177 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:21,954 INFO L134 CoverageAnalysis]: Checked inductivity of 3520 backedges. 0 proven. 1660 refuted. 0 times theorem prover too weak. 1860 trivial. 0 not checked. [2024-09-12 19:46:21,954 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1118897524] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:46:21,954 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:46:21,954 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 24, 24] total 50 [2024-09-12 19:46:21,955 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876433571] [2024-09-12 19:46:21,955 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:21,956 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2024-09-12 19:46:21,956 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:21,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2024-09-12 19:46:21,958 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=647, Invalid=1803, Unknown=0, NotChecked=0, Total=2450 [2024-09-12 19:46:21,958 INFO L87 Difference]: Start difference. First operand 708 states and 742 transitions. Second operand has 50 states, 50 states have (on average 14.48) internal successors, (724), 49 states have internal predecessors, (724), 25 states have call successors, (97), 16 states have call predecessors, (97), 15 states have return successors, (95), 24 states have call predecessors, (95), 22 states have call successors, (95) [2024-09-12 19:46:23,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:23,763 INFO L93 Difference]: Finished difference Result 1117 states and 1162 transitions. [2024-09-12 19:46:23,764 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 91 states. [2024-09-12 19:46:23,764 INFO L78 Accepts]: Start accepts. Automaton has has 50 states, 50 states have (on average 14.48) internal successors, (724), 49 states have internal predecessors, (724), 25 states have call successors, (97), 16 states have call predecessors, (97), 15 states have return successors, (95), 24 states have call predecessors, (95), 22 states have call successors, (95) Word has length 504 [2024-09-12 19:46:23,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:23,769 INFO L225 Difference]: With dead ends: 1117 [2024-09-12 19:46:23,769 INFO L226 Difference]: Without dead ends: 1031 [2024-09-12 19:46:23,773 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1160 GetRequests, 1048 SyntacticMatches, 0 SemanticMatches, 112 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3472 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=3156, Invalid=9726, Unknown=0, NotChecked=0, Total=12882 [2024-09-12 19:46:23,773 INFO L434 NwaCegarLoop]: 61 mSDtfsCounter, 409 mSDsluCounter, 1066 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 109 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 412 SdHoareTripleChecker+Valid, 1127 SdHoareTripleChecker+Invalid, 548 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 109 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:23,774 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [412 Valid, 1127 Invalid, 548 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [109 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-09-12 19:46:23,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1031 states. [2024-09-12 19:46:24,036 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1031 to 1004. [2024-09-12 19:46:24,037 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 881 states have (on average 1.0385925085130534) internal successors, (915), 887 states have internal predecessors, (915), 70 states have call successors, (70), 47 states have call predecessors, (70), 46 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-09-12 19:46:24,039 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1054 transitions. [2024-09-12 19:46:24,043 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1054 transitions. Word has length 504 [2024-09-12 19:46:24,045 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:24,045 INFO L474 AbstractCegarLoop]: Abstraction has 1004 states and 1054 transitions. [2024-09-12 19:46:24,045 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 14.48) internal successors, (724), 49 states have internal predecessors, (724), 25 states have call successors, (97), 16 states have call predecessors, (97), 15 states have return successors, (95), 24 states have call predecessors, (95), 22 states have call successors, (95) [2024-09-12 19:46:24,046 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:24,046 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1054 transitions. [2024-09-12 19:46:24,049 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 505 [2024-09-12 19:46:24,050 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:24,050 INFO L216 NwaCegarLoop]: trace histogram [31, 31, 31, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:24,068 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (21)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:24,250 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,21 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:24,251 INFO L399 AbstractCegarLoop]: === Iteration 31 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:24,251 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:24,251 INFO L85 PathProgramCache]: Analyzing trace with hash -1471964294, now seen corresponding path program 3 times [2024-09-12 19:46:24,251 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:24,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [911697825] [2024-09-12 19:46:24,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:24,251 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:24,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:46:24,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1317937638] [2024-09-12 19:46:24,321 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:46:24,321 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:24,321 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:24,323 INFO L229 MonitoredProcess]: Starting monitored process 22 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:24,325 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Waiting until timeout for monitored process [2024-09-12 19:46:24,392 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-09-12 19:46:24,392 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:24,393 INFO L262 TraceCheckSpWp]: Trace formula consists of 155 conjuncts, 18 conjuncts are in the unsatisfiable core [2024-09-12 19:46:24,398 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:25,022 INFO L134 CoverageAnalysis]: Checked inductivity of 3630 backedges. 228 proven. 204 refuted. 0 times theorem prover too weak. 3198 trivial. 0 not checked. [2024-09-12 19:46:25,022 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:29,076 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:29,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [911697825] [2024-09-12 19:46:29,076 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:46:29,076 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1317937638] [2024-09-12 19:46:29,076 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1317937638] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:29,076 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:46:29,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2024-09-12 19:46:29,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1025287747] [2024-09-12 19:46:29,076 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:29,077 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-09-12 19:46:29,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:29,077 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-09-12 19:46:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=64, Invalid=242, Unknown=0, NotChecked=0, Total=306 [2024-09-12 19:46:29,078 INFO L87 Difference]: Start difference. First operand 1004 states and 1054 transitions. Second operand has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:46:30,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:30,476 INFO L93 Difference]: Finished difference Result 1004 states and 1054 transitions. [2024-09-12 19:46:30,476 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-09-12 19:46:30,476 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) Word has length 504 [2024-09-12 19:46:30,477 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:30,481 INFO L225 Difference]: With dead ends: 1004 [2024-09-12 19:46:30,481 INFO L226 Difference]: Without dead ends: 1000 [2024-09-12 19:46:30,482 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 553 GetRequests, 531 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 69 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=143, Invalid=409, Unknown=0, NotChecked=0, Total=552 [2024-09-12 19:46:30,483 INFO L434 NwaCegarLoop]: 24 mSDtfsCounter, 230 mSDsluCounter, 124 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 148 SdHoareTripleChecker+Invalid, 281 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:30,483 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 148 Invalid, 281 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:46:30,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1000 states. [2024-09-12 19:46:30,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1000 to 1000. [2024-09-12 19:46:30,997 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1000 states, 881 states have (on average 1.0136208853575484) internal successors, (893), 883 states have internal predecessors, (893), 70 states have call successors, (70), 47 states have call predecessors, (70), 46 states have return successors, (69), 69 states have call predecessors, (69), 69 states have call successors, (69) [2024-09-12 19:46:31,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1000 states to 1000 states and 1032 transitions. [2024-09-12 19:46:31,001 INFO L78 Accepts]: Start accepts. Automaton has 1000 states and 1032 transitions. Word has length 504 [2024-09-12 19:46:31,001 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:31,002 INFO L474 AbstractCegarLoop]: Abstraction has 1000 states and 1032 transitions. [2024-09-12 19:46:31,002 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 7.444444444444445) internal successors, (67), 9 states have internal predecessors, (67), 4 states have call successors, (7), 1 states have call predecessors, (7), 2 states have return successors, (6), 4 states have call predecessors, (6), 4 states have call successors, (6) [2024-09-12 19:46:31,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:31,002 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states and 1032 transitions. [2024-09-12 19:46:31,007 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 610 [2024-09-12 19:46:31,007 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:31,007 INFO L216 NwaCegarLoop]: trace histogram [38, 38, 38, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:31,025 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (22)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:31,213 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,22 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:31,214 INFO L399 AbstractCegarLoop]: === Iteration 32 === Targeting mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:31,214 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:31,214 INFO L85 PathProgramCache]: Analyzing trace with hash 2027925563, now seen corresponding path program 3 times [2024-09-12 19:46:31,214 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:31,214 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003303671] [2024-09-12 19:46:31,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:31,214 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:31,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,400 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:32,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,402 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,404 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:32,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,406 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:32,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,409 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:32,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,412 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:32,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,414 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:32,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,417 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:46:32,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,419 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:46:32,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:46:32,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:46:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,424 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 19:46:32,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,426 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 19:46:32,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,428 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 19:46:32,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 19:46:32,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,432 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 19:46:32,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 19:46:32,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,435 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 19:46:32,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,437 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 19:46:32,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,439 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 19:46:32,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 19:46:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-09-12 19:46:32,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 19:46:32,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 19:46:32,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,447 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-09-12 19:46:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,449 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2024-09-12 19:46:32,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,451 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-09-12 19:46:32,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,453 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-09-12 19:46:32,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,455 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-09-12 19:46:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,457 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2024-09-12 19:46:32,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,459 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-09-12 19:46:32,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,460 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2024-09-12 19:46:32,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,462 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2024-09-12 19:46:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,464 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2024-09-12 19:46:32,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,466 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2024-09-12 19:46:32,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,468 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-09-12 19:46:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,470 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 600 [2024-09-12 19:46:32,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:32,475 INFO L134 CoverageAnalysis]: Checked inductivity of 5428 backedges. 0 proven. 2616 refuted. 0 times theorem prover too weak. 2812 trivial. 0 not checked. [2024-09-12 19:46:32,475 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:32,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1003303671] [2024-09-12 19:46:32,475 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1003303671] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:32,475 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2024145698] [2024-09-12 19:46:32,475 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:46:32,475 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:32,476 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:32,477 INFO L229 MonitoredProcess]: Starting monitored process 23 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:32,478 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Waiting until timeout for monitored process [2024-09-12 19:46:32,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:46:32,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:32,549 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 14 conjuncts are in the unsatisfiable core [2024-09-12 19:46:32,555 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:33,173 INFO L134 CoverageAnalysis]: Checked inductivity of 5428 backedges. 216 proven. 306 refuted. 0 times theorem prover too weak. 4906 trivial. 0 not checked. [2024-09-12 19:46:33,173 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:46:41,546 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2024145698] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:41,547 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:46:41,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [27, 8] total 34 [2024-09-12 19:46:41,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1292716552] [2024-09-12 19:46:41,547 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:46:41,548 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-09-12 19:46:41,548 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:41,549 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-09-12 19:46:41,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=134, Invalid=1506, Unknown=0, NotChecked=0, Total=1640 [2024-09-12 19:46:41,550 INFO L87 Difference]: Start difference. First operand 1000 states and 1032 transitions. Second operand has 35 states, 34 states have (on average 14.176470588235293) internal successors, (482), 34 states have internal predecessors, (482), 17 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 17 states have call predecessors, (44), 17 states have call successors, (44) [2024-09-12 19:46:48,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:48,756 INFO L93 Difference]: Finished difference Result 1000 states and 1032 transitions. [2024-09-12 19:46:48,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 80 states. [2024-09-12 19:46:48,757 INFO L78 Accepts]: Start accepts. Automaton has has 35 states, 34 states have (on average 14.176470588235293) internal successors, (482), 34 states have internal predecessors, (482), 17 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 17 states have call predecessors, (44), 17 states have call successors, (44) Word has length 609 [2024-09-12 19:46:48,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:48,762 INFO L225 Difference]: With dead ends: 1000 [2024-09-12 19:46:48,762 INFO L226 Difference]: Without dead ends: 982 [2024-09-12 19:46:48,768 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 825 GetRequests, 709 SyntacticMatches, 0 SemanticMatches, 116 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3747 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=1568, Invalid=12238, Unknown=0, NotChecked=0, Total=13806 [2024-09-12 19:46:48,769 INFO L434 NwaCegarLoop]: 139 mSDtfsCounter, 882 mSDsluCounter, 3213 mSDsCounter, 0 mSdLazyCounter, 8403 mSolverCounterSat, 191 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 882 SdHoareTripleChecker+Valid, 3352 SdHoareTripleChecker+Invalid, 8594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 191 IncrementalHoareTripleChecker+Valid, 8403 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.6s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:48,769 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [882 Valid, 3352 Invalid, 8594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [191 Valid, 8403 Invalid, 0 Unknown, 0 Unchecked, 4.6s Time] [2024-09-12 19:46:48,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2024-09-12 19:46:49,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 981. [2024-09-12 19:46:49,341 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 981 states, 866 states have (on average 1.0011547344110854) internal successors, (867), 866 states have internal predecessors, (867), 68 states have call successors, (68), 47 states have call predecessors, (68), 46 states have return successors, (67), 67 states have call predecessors, (67), 67 states have call successors, (67) [2024-09-12 19:46:49,344 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 981 states to 981 states and 1002 transitions. [2024-09-12 19:46:49,345 INFO L78 Accepts]: Start accepts. Automaton has 981 states and 1002 transitions. Word has length 609 [2024-09-12 19:46:49,345 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:49,346 INFO L474 AbstractCegarLoop]: Abstraction has 981 states and 1002 transitions. [2024-09-12 19:46:49,346 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 35 states, 34 states have (on average 14.176470588235293) internal successors, (482), 34 states have internal predecessors, (482), 17 states have call successors, (46), 2 states have call predecessors, (46), 2 states have return successors, (44), 17 states have call predecessors, (44), 17 states have call successors, (44) [2024-09-12 19:46:49,346 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:49,346 INFO L276 IsEmpty]: Start isEmpty. Operand 981 states and 1002 transitions. [2024-09-12 19:46:49,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065 [2024-09-12 19:46:49,355 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:46:49,355 INFO L216 NwaCegarLoop]: trace histogram [66, 66, 66, 23, 23, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:49,372 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (23)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:49,559 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 23 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable31 [2024-09-12 19:46:49,560 INFO L399 AbstractCegarLoop]: === Iteration 33 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:46:49,560 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:49,560 INFO L85 PathProgramCache]: Analyzing trace with hash 1422318154, now seen corresponding path program 3 times [2024-09-12 19:46:49,560 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:46:49,560 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [433949361] [2024-09-12 19:46:49,560 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:46:49,560 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:46:49,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,265 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:46:52,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,268 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:46:52,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,270 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:46:52,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,271 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:46:52,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,272 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:46:52,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,273 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:46:52,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,274 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:46:52,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,275 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:46:52,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,277 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:46:52,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,278 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:46:52,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,279 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:46:52,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,281 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:46:52,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,282 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:46:52,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,284 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2024-09-12 19:46:52,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,285 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2024-09-12 19:46:52,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,286 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2024-09-12 19:46:52,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-09-12 19:46:52,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,289 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2024-09-12 19:46:52,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,291 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 281 [2024-09-12 19:46:52,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,292 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 301 [2024-09-12 19:46:52,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2024-09-12 19:46:52,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,295 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2024-09-12 19:46:52,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,297 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2024-09-12 19:46:52,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,298 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2024-09-12 19:46:52,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2024-09-12 19:46:52,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,301 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 397 [2024-09-12 19:46:52,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,302 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2024-09-12 19:46:52,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,304 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 425 [2024-09-12 19:46:52,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,305 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 445 [2024-09-12 19:46:52,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,307 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 456 [2024-09-12 19:46:52,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,308 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 473 [2024-09-12 19:46:52,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,310 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 493 [2024-09-12 19:46:52,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,312 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2024-09-12 19:46:52,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,313 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 521 [2024-09-12 19:46:52,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,314 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 541 [2024-09-12 19:46:52,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,316 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 552 [2024-09-12 19:46:52,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,317 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 569 [2024-09-12 19:46:52,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,319 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 589 [2024-09-12 19:46:52,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,320 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 600 [2024-09-12 19:46:52,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,321 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 617 [2024-09-12 19:46:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,323 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 637 [2024-09-12 19:46:52,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,324 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 648 [2024-09-12 19:46:52,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,326 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 665 [2024-09-12 19:46:52,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,327 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 685 [2024-09-12 19:46:52,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,329 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 696 [2024-09-12 19:46:52,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,330 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 713 [2024-09-12 19:46:52,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,332 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2024-09-12 19:46:52,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,333 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 744 [2024-09-12 19:46:52,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,334 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 761 [2024-09-12 19:46:52,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,336 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 781 [2024-09-12 19:46:52,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,337 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 792 [2024-09-12 19:46:52,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,339 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 809 [2024-09-12 19:46:52,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,340 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 829 [2024-09-12 19:46:52,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,342 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 840 [2024-09-12 19:46:52,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,343 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 857 [2024-09-12 19:46:52,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,345 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 877 [2024-09-12 19:46:52,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,346 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 888 [2024-09-12 19:46:52,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,347 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 905 [2024-09-12 19:46:52,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,349 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 925 [2024-09-12 19:46:52,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,350 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 936 [2024-09-12 19:46:52,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,352 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 953 [2024-09-12 19:46:52,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,353 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2024-09-12 19:46:52,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,355 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 984 [2024-09-12 19:46:52,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,356 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1001 [2024-09-12 19:46:52,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,357 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1021 [2024-09-12 19:46:52,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,359 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1032 [2024-09-12 19:46:52,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,360 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1049 [2024-09-12 19:46:52,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:46:52,368 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 0 proven. 8382 refuted. 0 times theorem prover too weak. 8580 trivial. 0 not checked. [2024-09-12 19:46:52,368 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:46:52,368 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [433949361] [2024-09-12 19:46:52,369 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [433949361] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:46:52,369 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1885865618] [2024-09-12 19:46:52,369 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-09-12 19:46:52,369 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:46:52,369 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:46:52,370 INFO L229 MonitoredProcess]: Starting monitored process 24 with /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-09-12 19:46:52,371 INFO L327 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Waiting until timeout for monitored process [2024-09-12 19:46:52,446 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 2 check-sat command(s) [2024-09-12 19:46:52,446 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:46:52,447 INFO L262 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-09-12 19:46:52,458 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:46:52,613 INFO L134 CoverageAnalysis]: Checked inductivity of 16962 backedges. 1515 proven. 0 refuted. 0 times theorem prover too weak. 15447 trivial. 0 not checked. [2024-09-12 19:46:52,613 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:46:52,614 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1885865618] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:46:52,614 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:46:52,614 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [49] total 52 [2024-09-12 19:46:52,614 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1297011777] [2024-09-12 19:46:52,614 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:46:52,615 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:46:52,615 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:46:52,615 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:46:52,616 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=703, Invalid=2053, Unknown=0, NotChecked=0, Total=2756 [2024-09-12 19:46:52,617 INFO L87 Difference]: Start difference. First operand 981 states and 1002 transitions. Second operand has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:46:53,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:46:53,098 INFO L93 Difference]: Finished difference Result 981 states and 1002 transitions. [2024-09-12 19:46:53,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:46:53,099 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 1064 [2024-09-12 19:46:53,100 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:46:53,101 INFO L225 Difference]: With dead ends: 981 [2024-09-12 19:46:53,101 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:46:53,103 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 1247 GetRequests, 1194 SyntacticMatches, 0 SemanticMatches, 53 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 691 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=715, Invalid=2255, Unknown=0, NotChecked=0, Total=2970 [2024-09-12 19:46:53,103 INFO L434 NwaCegarLoop]: 42 mSDtfsCounter, 7 mSDsluCounter, 77 mSDsCounter, 0 mSdLazyCounter, 18 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 7 SdHoareTripleChecker+Valid, 119 SdHoareTripleChecker+Invalid, 20 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 18 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-09-12 19:46:53,103 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [7 Valid, 119 Invalid, 20 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 18 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-09-12 19:46:53,104 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:46:53,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:46:53,104 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-09-12 19:46:53,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:46:53,104 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1064 [2024-09-12 19:46:53,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:46:53,104 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:46:53,104 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 18.75) internal successors, (75), 5 states have internal predecessors, (75), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2024-09-12 19:46:53,105 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:46:53,105 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:46:53,105 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:46:53,107 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 53 remaining) [2024-09-12 19:46:53,107 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 53 remaining) [2024-09-12 19:46:53,107 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 53 remaining) [2024-09-12 19:46:53,107 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 53 remaining) [2024-09-12 19:46:53,107 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 53 remaining) [2024-09-12 19:46:53,107 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 53 remaining) [2024-09-12 19:46:53,107 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 53 remaining) [2024-09-12 19:46:53,107 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 53 remaining) [2024-09-12 19:46:53,107 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 53 remaining) [2024-09-12 19:46:53,107 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 53 remaining) [2024-09-12 19:46:53,108 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 53 remaining) [2024-09-12 19:46:53,109 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 53 remaining) [2024-09-12 19:46:53,110 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 53 remaining) [2024-09-12 19:46:53,111 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 53 remaining) [2024-09-12 19:46:53,111 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 53 remaining) [2024-09-12 19:46:53,111 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 53 remaining) [2024-09-12 19:46:53,111 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 53 remaining) [2024-09-12 19:46:53,111 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 53 remaining) [2024-09-12 19:46:53,123 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (24)] Forceful destruction successful, exit code 0 [2024-09-12 19:46:53,311 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 24 /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-09-12 19:46:53,314 INFO L408 BasicCegarLoop]: Path program histogram: [3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:46:53,315 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:48:10,162 WARN L293 SmtUtils]: Spent 1.27m on a formula simplification. DAG size of input: 208 DAG size of output: 307 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-09-12 19:48:22,423 WARN L293 SmtUtils]: Spent 9.28s on a formula simplification. DAG size of input: 171 DAG size of output: 322 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-09-12 19:48:32,003 WARN L293 SmtUtils]: Spent 9.30s on a formula simplification. DAG size of input: 171 DAG size of output: 322 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or) [2024-09-12 19:49:50,167 WARN L293 SmtUtils]: Spent 1.27m on a formula simplification. DAG size of input: 208 DAG size of output: 307 (called from [L 212] de.uni_freiburg.informatik.ultimate.lib.proofs.floydhoare.HoareAnnotationComposer.or)