./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.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_unwindbound2.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 d6c389695f28ab23288d12eab23e55426fe9ec0f0b8fe9723cca18e00c3db8b7 --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 19:45:29,858 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-09-12 19:45:29,938 INFO L114 SettingsManager]: Loading settings from /storage/repos/certificate-witnesses-artifact/automizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-09-12 19:45:29,943 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-09-12 19:45:29,943 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-09-12 19:45:29,970 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-09-12 19:45:29,971 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-09-12 19:45:29,971 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-09-12 19:45:29,972 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-09-12 19:45:29,972 INFO L153 SettingsManager]: * Use memory slicer=true [2024-09-12 19:45:29,972 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-09-12 19:45:29,972 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-09-12 19:45:29,973 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-09-12 19:45:29,974 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-09-12 19:45:29,975 INFO L153 SettingsManager]: * Use SBE=true [2024-09-12 19:45:29,976 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-09-12 19:45:29,976 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-09-12 19:45:29,976 INFO L153 SettingsManager]: * sizeof long=4 [2024-09-12 19:45:29,977 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-09-12 19:45:29,977 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-09-12 19:45:29,977 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-09-12 19:45:29,981 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-09-12 19:45:29,981 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-09-12 19:45:29,982 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-09-12 19:45:29,982 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-09-12 19:45:29,982 INFO L153 SettingsManager]: * sizeof long double=12 [2024-09-12 19:45:29,982 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-09-12 19:45:29,983 INFO L153 SettingsManager]: * Use constant arrays=true [2024-09-12 19:45:29,983 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-09-12 19:45:29,983 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-09-12 19:45:29,983 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-09-12 19:45:29,983 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-09-12 19:45:29,984 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:45:29,984 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-09-12 19:45:29,984 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-09-12 19:45:29,984 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-09-12 19:45:29,985 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-09-12 19:45:29,985 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-09-12 19:45:29,986 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-09-12 19:45:29,986 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-09-12 19:45:29,986 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-09-12 19:45:29,986 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-09-12 19:45:29,986 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/certificate-witnesses-artifact/automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d6c389695f28ab23288d12eab23e55426fe9ec0f0b8fe9723cca18e00c3db8b7 Applying setting for plugin de.uni_freiburg.informatik.ultimate.boogie.procedureinliner: Inline calls to implemented procedures -> NEVER Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Positions where we compute the Hoare Annotation -> All Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: YAML Format version -> 2.1 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2024-09-12 19:45:30,290 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-09-12 19:45:30,315 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-09-12 19:45:30,319 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-09-12 19:45:30,320 INFO L270 PluginConnector]: Initializing CDTParser... [2024-09-12 19:45:30,321 INFO L274 PluginConnector]: CDTParser initialized [2024-09-12 19:45:30,322 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/certificate-witnesses-artifact/automizer/../sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2024-09-12 19:45:31,831 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-09-12 19:45:32,045 INFO L384 CDTParser]: Found 1 translation units. [2024-09-12 19:45:32,046 INFO L180 CDTParser]: Scanning /storage/repos/certificate-witnesses-artifact/sv-benchmarks/c/nla-digbench-scaling/sqrt1-ll_unwindbound2.c [2024-09-12 19:45:32,055 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/certificate-witnesses-artifact/automizer/data/c7000bb1a/1d5ed938a5324d0b92a973b260c56d46/FLAGbec0f040f [2024-09-12 19:45:32,441 INFO L435 CDTParser]: Successfully deleted /storage/repos/certificate-witnesses-artifact/automizer/data/c7000bb1a/1d5ed938a5324d0b92a973b260c56d46 [2024-09-12 19:45:32,443 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-09-12 19:45:32,447 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-09-12 19:45:32,449 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-09-12 19:45:32,450 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-09-12 19:45:32,455 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-09-12 19:45:32,455 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,456 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@13dbc168 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32, skipping insertion in model container [2024-09-12 19:45:32,456 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,474 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-09-12 19:45:32,597 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_unwindbound2.c[520,533] [2024-09-12 19:45:32,614 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:45:32,622 INFO L200 MainTranslator]: Completed pre-run [2024-09-12 19:45:32,630 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_unwindbound2.c[520,533] [2024-09-12 19:45:32,638 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-09-12 19:45:32,663 INFO L204 MainTranslator]: Completed translation [2024-09-12 19:45:32,663 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32 WrapperNode [2024-09-12 19:45:32,664 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-09-12 19:45:32,665 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-09-12 19:45:32,668 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-09-12 19:45:32,668 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-09-12 19:45:32,674 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,680 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,690 INFO L138 Inliner]: procedures = 14, calls = 13, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2024-09-12 19:45:32,690 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-09-12 19:45:32,692 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-09-12 19:45:32,692 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-09-12 19:45:32,692 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-09-12 19:45:32,701 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,702 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,707 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,726 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 19:45:32,726 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,726 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,729 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,732 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,736 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,740 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,741 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-09-12 19:45:32,742 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-09-12 19:45:32,742 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-09-12 19:45:32,742 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-09-12 19:45:32,743 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (1/1) ... [2024-09-12 19:45:32,753 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-09-12 19:45:32,764 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:32,780 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 19:45:32,788 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 19:45:32,826 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-09-12 19:45:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2024-09-12 19:45:32,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2024-09-12 19:45:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-09-12 19:45:32,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2024-09-12 19:45:32,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2024-09-12 19:45:32,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-09-12 19:45:32,829 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-09-12 19:45:32,829 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2024-09-12 19:45:32,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2024-09-12 19:45:32,892 INFO L242 CfgBuilder]: Building ICFG [2024-09-12 19:45:32,894 INFO L268 CfgBuilder]: Building CFG for each procedure with an implementation [2024-09-12 19:45:33,281 INFO L? ?]: Removed 66 outVars from TransFormulas that were not future-live. [2024-09-12 19:45:33,282 INFO L291 CfgBuilder]: Performing block encoding [2024-09-12 19:45:33,315 INFO L313 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-09-12 19:45:33,315 INFO L318 CfgBuilder]: Removed 1 assume(true) statements. [2024-09-12 19:45:33,316 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:45:33 BoogieIcfgContainer [2024-09-12 19:45:33,316 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-09-12 19:45:33,317 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-09-12 19:45:33,317 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-09-12 19:45:33,321 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-09-12 19:45:33,321 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.09 07:45:32" (1/3) ... [2024-09-12 19:45:33,322 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d348e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:45:33, skipping insertion in model container [2024-09-12 19:45:33,323 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.09 07:45:32" (2/3) ... [2024-09-12 19:45:33,324 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d348e9c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.09 07:45:33, skipping insertion in model container [2024-09-12 19:45:33,324 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:45:33" (3/3) ... [2024-09-12 19:45:33,325 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt1-ll_unwindbound2.c [2024-09-12 19:45:33,339 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:All NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-09-12 19:45:33,340 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 53 error locations. [2024-09-12 19:45:33,402 INFO L335 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-09-12 19:45:33,409 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;@7d9c152f, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-09-12 19:45:33,410 INFO L337 AbstractCegarLoop]: Starting to check reachability of 53 error locations. [2024-09-12 19:45:33,414 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 19:45:33,422 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 19:45:33,422 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:33,423 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:33,423 INFO L399 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:33,429 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:33,429 INFO L85 PathProgramCache]: Analyzing trace with hash -425422923, now seen corresponding path program 1 times [2024-09-12 19:45:33,439 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:33,440 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2108571345] [2024-09-12 19:45:33,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:33,440 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:33,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:33,560 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:33,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:33,575 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 19:45:33,577 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:33,577 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2108571345] [2024-09-12 19:45:33,578 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2108571345] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:33,578 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:33,579 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:33,580 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [316154692] [2024-09-12 19:45:33,581 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:33,584 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-09-12 19:45:33,584 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:33,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-09-12 19:45:33,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-09-12 19:45:33,607 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 19:45:33,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:33,728 INFO L93 Difference]: Finished difference Result 252 states and 279 transitions. [2024-09-12 19:45:33,730 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-09-12 19:45:33,731 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 19:45:33,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:33,739 INFO L225 Difference]: With dead ends: 252 [2024-09-12 19:45:33,739 INFO L226 Difference]: Without dead ends: 125 [2024-09-12 19:45:33,743 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 19:45:33,748 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 19:45:33,749 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 19:45:33,761 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 125 states. [2024-09-12 19:45:33,785 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 125 to 120. [2024-09-12 19:45:33,786 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 19:45:33,788 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 126 transitions. [2024-09-12 19:45:33,790 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 126 transitions. Word has length 7 [2024-09-12 19:45:33,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:33,791 INFO L474 AbstractCegarLoop]: Abstraction has 120 states and 126 transitions. [2024-09-12 19:45:33,791 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 19:45:33,792 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:33,792 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 126 transitions. [2024-09-12 19:45:33,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2024-09-12 19:45:33,793 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:33,793 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:33,793 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-09-12 19:45:33,793 INFO L399 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:33,794 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:33,794 INFO L85 PathProgramCache]: Analyzing trace with hash -425425324, now seen corresponding path program 1 times [2024-09-12 19:45:33,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:33,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1121879738] [2024-09-12 19:45:33,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:33,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:33,886 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:33,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:33,900 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 19:45:33,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:33,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1121879738] [2024-09-12 19:45:33,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1121879738] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:33,901 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:33,901 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:33,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50413629] [2024-09-12 19:45:33,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:33,903 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:33,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:33,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:33,904 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:33,904 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 19:45:34,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:34,040 INFO L93 Difference]: Finished difference Result 177 states and 185 transitions. [2024-09-12 19:45:34,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:45:34,040 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 19:45:34,041 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:34,042 INFO L225 Difference]: With dead ends: 177 [2024-09-12 19:45:34,045 INFO L226 Difference]: Without dead ends: 124 [2024-09-12 19:45:34,046 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 19:45:34,047 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 19:45:34,048 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 19:45:34,049 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2024-09-12 19:45:34,071 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2024-09-12 19:45:34,073 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 19:45:34,075 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 130 transitions. [2024-09-12 19:45:34,078 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 130 transitions. Word has length 7 [2024-09-12 19:45:34,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:34,078 INFO L474 AbstractCegarLoop]: Abstraction has 124 states and 130 transitions. [2024-09-12 19:45:34,079 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 19:45:34,079 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:34,079 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 130 transitions. [2024-09-12 19:45:34,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2024-09-12 19:45:34,079 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:34,079 INFO L216 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:34,080 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-09-12 19:45:34,080 INFO L399 AbstractCegarLoop]: === Iteration 3 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:34,080 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:34,080 INFO L85 PathProgramCache]: Analyzing trace with hash 602707066, now seen corresponding path program 1 times [2024-09-12 19:45:34,080 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:34,080 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [997680346] [2024-09-12 19:45:34,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:34,081 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:34,149 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:34,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:34,157 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 19:45:34,157 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:34,158 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [997680346] [2024-09-12 19:45:34,158 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [997680346] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:34,158 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:34,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:34,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [446764813] [2024-09-12 19:45:34,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:34,159 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:34,159 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:34,160 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:34,160 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:45:34,160 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 19:45:34,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:34,379 INFO L93 Difference]: Finished difference Result 219 states and 231 transitions. [2024-09-12 19:45:34,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:34,380 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 19:45:34,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:34,382 INFO L225 Difference]: With dead ends: 219 [2024-09-12 19:45:34,385 INFO L226 Difference]: Without dead ends: 199 [2024-09-12 19:45:34,385 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 19:45:34,386 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 19:45:34,388 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 19:45:34,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 199 states. [2024-09-12 19:45:34,410 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 199 to 163. [2024-09-12 19:45:34,410 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 19:45:34,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 163 states to 163 states and 185 transitions. [2024-09-12 19:45:34,413 INFO L78 Accepts]: Start accepts. Automaton has 163 states and 185 transitions. Word has length 10 [2024-09-12 19:45:34,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:34,413 INFO L474 AbstractCegarLoop]: Abstraction has 163 states and 185 transitions. [2024-09-12 19:45:34,413 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 19:45:34,414 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:34,414 INFO L276 IsEmpty]: Start isEmpty. Operand 163 states and 185 transitions. [2024-09-12 19:45:34,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2024-09-12 19:45:34,415 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:34,415 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 19:45:34,415 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-09-12 19:45:34,415 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 19:45:34,416 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:34,416 INFO L85 PathProgramCache]: Analyzing trace with hash -556719087, now seen corresponding path program 1 times [2024-09-12 19:45:34,416 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:34,416 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2018703372] [2024-09-12 19:45:34,416 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:34,417 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:34,599 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:34,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:34,606 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 19:45:34,607 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:34,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2018703372] [2024-09-12 19:45:34,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2018703372] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:34,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:34,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-09-12 19:45:34,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831209114] [2024-09-12 19:45:34,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:34,612 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:34,612 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:34,613 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:34,613 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:34,613 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 19:45:34,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:34,959 INFO L93 Difference]: Finished difference Result 193 states and 216 transitions. [2024-09-12 19:45:34,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:45:34,960 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 19:45:34,960 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:34,961 INFO L225 Difference]: With dead ends: 193 [2024-09-12 19:45:34,962 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 19:45:34,962 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 19:45:34,963 INFO L434 NwaCegarLoop]: 85 mSDtfsCounter, 61 mSDsluCounter, 252 mSDsCounter, 0 mSdLazyCounter, 372 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s 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 19:45:34,966 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 19:45:34,967 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 19:45:34,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 176. [2024-09-12 19:45:34,995 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 19:45:34,997 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 176 states to 176 states and 199 transitions. [2024-09-12 19:45:34,998 INFO L78 Accepts]: Start accepts. Automaton has 176 states and 199 transitions. Word has length 17 [2024-09-12 19:45:34,998 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:34,998 INFO L474 AbstractCegarLoop]: Abstraction has 176 states and 199 transitions. [2024-09-12 19:45:34,999 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 19:45:34,999 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:34,999 INFO L276 IsEmpty]: Start isEmpty. Operand 176 states and 199 transitions. [2024-09-12 19:45:35,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2024-09-12 19:45:35,000 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:35,000 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 19:45:35,001 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-09-12 19:45:35,001 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 19:45:35,002 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:35,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1036864962, now seen corresponding path program 1 times [2024-09-12 19:45:35,002 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:35,002 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [762507345] [2024-09-12 19:45:35,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:35,003 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:35,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:35,024 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [983028656] [2024-09-12 19:45:35,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:35,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:35,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:35,028 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 19:45:35,030 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 19:45:35,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:35,083 INFO L262 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:35,087 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:35,257 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 19:45:35,258 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:35,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:35,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [762507345] [2024-09-12 19:45:35,259 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:35,260 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [983028656] [2024-09-12 19:45:35,260 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [983028656] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:35,260 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:35,260 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:45:35,260 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634129246] [2024-09-12 19:45:35,261 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:35,261 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:35,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:35,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:35,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:35,266 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 19:45:35,524 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:35,524 INFO L93 Difference]: Finished difference Result 197 states and 213 transitions. [2024-09-12 19:45:35,525 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:35,525 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 19:45:35,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:35,527 INFO L225 Difference]: With dead ends: 197 [2024-09-12 19:45:35,527 INFO L226 Difference]: Without dead ends: 185 [2024-09-12 19:45:35,527 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 19:45:35,528 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 19:45:35,528 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 19:45:35,529 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 185 states. [2024-09-12 19:45:35,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 185 to 183. [2024-09-12 19:45:35,544 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 19:45:35,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 198 transitions. [2024-09-12 19:45:35,546 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 198 transitions. Word has length 28 [2024-09-12 19:45:35,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:35,546 INFO L474 AbstractCegarLoop]: Abstraction has 183 states and 198 transitions. [2024-09-12 19:45:35,546 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 19:45:35,547 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:35,547 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 198 transitions. [2024-09-12 19:45:35,547 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2024-09-12 19:45:35,548 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:35,548 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 19:45:35,565 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 19:45:35,752 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 19:45:35,753 INFO L399 AbstractCegarLoop]: === Iteration 6 === Targeting mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:35,753 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:35,753 INFO L85 PathProgramCache]: Analyzing trace with hash -2039071583, now seen corresponding path program 1 times [2024-09-12 19:45:35,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:35,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1504398834] [2024-09-12 19:45:35,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:35,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:35,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:35,846 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:35,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:35,851 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:35,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:35,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:35,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:35,868 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 19:45:35,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:35,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1504398834] [2024-09-12 19:45:35,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1504398834] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:35,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:35,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:45:35,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1475609484] [2024-09-12 19:45:35,870 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:35,870 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:35,871 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:35,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:35,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:35,872 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 19:45:36,056 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:36,056 INFO L93 Difference]: Finished difference Result 193 states and 209 transitions. [2024-09-12 19:45:36,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:36,057 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 19:45:36,057 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:36,058 INFO L225 Difference]: With dead ends: 193 [2024-09-12 19:45:36,058 INFO L226 Difference]: Without dead ends: 189 [2024-09-12 19:45:36,058 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 19:45:36,059 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, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:36,059 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [98 Valid, 227 Invalid, 158 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:36,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2024-09-12 19:45:36,091 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 185. [2024-09-12 19:45:36,092 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 19:45:36,093 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 198 transitions. [2024-09-12 19:45:36,093 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 198 transitions. Word has length 35 [2024-09-12 19:45:36,094 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:36,094 INFO L474 AbstractCegarLoop]: Abstraction has 185 states and 198 transitions. [2024-09-12 19:45:36,094 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 19:45:36,096 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:36,096 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 198 transitions. [2024-09-12 19:45:36,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 40 [2024-09-12 19:45:36,097 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:36,097 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 19:45:36,097 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-09-12 19:45:36,098 INFO L399 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:36,098 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:36,098 INFO L85 PathProgramCache]: Analyzing trace with hash -1308821147, now seen corresponding path program 1 times [2024-09-12 19:45:36,098 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:36,098 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991457216] [2024-09-12 19:45:36,098 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:36,098 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:36,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:36,204 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:36,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:36,208 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:36,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:36,216 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:36,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:36,222 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 19:45:36,223 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:36,224 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991457216] [2024-09-12 19:45:36,224 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991457216] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:36,224 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:36,225 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:36,225 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [622261994] [2024-09-12 19:45:36,225 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:36,225 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:36,225 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:36,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:36,226 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:45:36,226 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 19:45:36,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:36,399 INFO L93 Difference]: Finished difference Result 191 states and 201 transitions. [2024-09-12 19:45:36,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:36,400 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 19:45:36,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:36,402 INFO L225 Difference]: With dead ends: 191 [2024-09-12 19:45:36,402 INFO L226 Difference]: Without dead ends: 187 [2024-09-12 19:45:36,403 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 19:45:36,404 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, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:36,405 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [41 Valid, 225 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [16 Valid, 138 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:36,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-09-12 19:45:36,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 186. [2024-09-12 19:45:36,421 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 19:45:36,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186 states to 186 states and 196 transitions. [2024-09-12 19:45:36,423 INFO L78 Accepts]: Start accepts. Automaton has 186 states and 196 transitions. Word has length 39 [2024-09-12 19:45:36,424 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:36,425 INFO L474 AbstractCegarLoop]: Abstraction has 186 states and 196 transitions. [2024-09-12 19:45:36,425 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 19:45:36,425 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:36,425 INFO L276 IsEmpty]: Start isEmpty. Operand 186 states and 196 transitions. [2024-09-12 19:45:36,426 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2024-09-12 19:45:36,426 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:36,426 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 19:45:36,427 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-09-12 19:45:36,427 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 19:45:36,427 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:36,427 INFO L85 PathProgramCache]: Analyzing trace with hash -1212702409, now seen corresponding path program 1 times [2024-09-12 19:45:36,427 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:36,428 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [209701672] [2024-09-12 19:45:36,428 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:36,428 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:36,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:36,439 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [716074501] [2024-09-12 19:45:36,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:36,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:36,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:36,442 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 19:45:36,443 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 19:45:36,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:36,505 INFO L262 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:36,507 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:36,665 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 19:45:36,666 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:36,667 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:36,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [209701672] [2024-09-12 19:45:36,667 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:36,667 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [716074501] [2024-09-12 19:45:36,667 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [716074501] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:36,667 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:36,668 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-09-12 19:45:36,668 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [820853602] [2024-09-12 19:45:36,669 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:36,669 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:36,669 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:36,670 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:36,672 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:36,672 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 19:45:36,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:36,824 INFO L93 Difference]: Finished difference Result 193 states and 202 transitions. [2024-09-12 19:45:36,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:36,824 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 19:45:36,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:36,826 INFO L225 Difference]: With dead ends: 193 [2024-09-12 19:45:36,826 INFO L226 Difference]: Without dead ends: 166 [2024-09-12 19:45:36,826 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 19:45:36,828 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 19:45:36,828 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 19:45:36,828 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2024-09-12 19:45:36,841 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2024-09-12 19:45:36,841 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 19:45:36,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 172 transitions. [2024-09-12 19:45:36,843 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 172 transitions. Word has length 45 [2024-09-12 19:45:36,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:36,843 INFO L474 AbstractCegarLoop]: Abstraction has 166 states and 172 transitions. [2024-09-12 19:45:36,843 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 19:45:36,844 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:36,844 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 172 transitions. [2024-09-12 19:45:36,845 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-09-12 19:45:36,845 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:36,845 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 19:45:36,861 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-09-12 19:45:37,047 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 19:45:37,048 INFO L399 AbstractCegarLoop]: === Iteration 9 === Targeting mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:37,048 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:37,048 INFO L85 PathProgramCache]: Analyzing trace with hash 291116170, now seen corresponding path program 1 times [2024-09-12 19:45:37,048 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:37,048 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1171994476] [2024-09-12 19:45:37,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:37,049 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,143 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:37,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,146 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:37,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,151 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:37,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,156 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:37,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,160 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 19:45:37,160 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:37,160 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1171994476] [2024-09-12 19:45:37,160 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1171994476] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:37,161 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:37,161 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:45:37,161 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [664369682] [2024-09-12 19:45:37,161 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:37,161 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:37,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:37,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:37,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:37,162 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 19:45:37,323 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:37,324 INFO L93 Difference]: Finished difference Result 169 states and 176 transitions. [2024-09-12 19:45:37,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:37,324 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 19:45:37,324 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:37,325 INFO L225 Difference]: With dead ends: 169 [2024-09-12 19:45:37,326 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 19:45:37,326 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 19:45:37,326 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, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:37,327 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [9 Valid, 302 Invalid, 197 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 187 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:37,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 19:45:37,336 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 167. [2024-09-12 19:45:37,336 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 19:45:37,337 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 173 transitions. [2024-09-12 19:45:37,337 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 173 transitions. Word has length 52 [2024-09-12 19:45:37,338 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:37,338 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 173 transitions. [2024-09-12 19:45:37,338 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 19:45:37,338 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:37,338 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 173 transitions. [2024-09-12 19:45:37,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2024-09-12 19:45:37,339 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:37,339 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 19:45:37,340 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-09-12 19:45:37,340 INFO L399 AbstractCegarLoop]: === Iteration 10 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:37,340 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:37,340 INFO L85 PathProgramCache]: Analyzing trace with hash 434666791, now seen corresponding path program 1 times [2024-09-12 19:45:37,340 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:37,340 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [304181104] [2024-09-12 19:45:37,341 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:37,341 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:37,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,430 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:37,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,433 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:37,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,436 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:37,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,440 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:37,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,443 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 19:45:37,444 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:37,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [304181104] [2024-09-12 19:45:37,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [304181104] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:37,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:37,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-09-12 19:45:37,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [382558670] [2024-09-12 19:45:37,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:37,445 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-09-12 19:45:37,445 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:37,446 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-09-12 19:45:37,446 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-09-12 19:45:37,447 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 19:45:37,609 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:37,609 INFO L93 Difference]: Finished difference Result 169 states and 175 transitions. [2024-09-12 19:45:37,610 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:37,610 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 19:45:37,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:37,612 INFO L225 Difference]: With dead ends: 169 [2024-09-12 19:45:37,613 INFO L226 Difference]: Without dead ends: 168 [2024-09-12 19:45:37,613 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 19:45:37,614 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, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:37,615 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 305 Invalid, 193 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 183 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:37,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 168 states. [2024-09-12 19:45:37,624 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 168 to 168. [2024-09-12 19:45:37,624 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 19:45:37,625 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 168 states to 168 states and 174 transitions. [2024-09-12 19:45:37,626 INFO L78 Accepts]: Start accepts. Automaton has 168 states and 174 transitions. Word has length 53 [2024-09-12 19:45:37,626 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:37,626 INFO L474 AbstractCegarLoop]: Abstraction has 168 states and 174 transitions. [2024-09-12 19:45:37,627 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 19:45:37,627 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:37,627 INFO L276 IsEmpty]: Start isEmpty. Operand 168 states and 174 transitions. [2024-09-12 19:45:37,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 56 [2024-09-12 19:45:37,628 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:37,628 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 19:45:37,628 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-09-12 19:45:37,628 INFO L399 AbstractCegarLoop]: === Iteration 11 === Targeting mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:37,629 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:37,629 INFO L85 PathProgramCache]: Analyzing trace with hash 1102959721, now seen corresponding path program 1 times [2024-09-12 19:45:37,629 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:37,629 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1231399233] [2024-09-12 19:45:37,629 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:37,629 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:37,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,754 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:37,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,760 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:37,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,763 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:37,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,766 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:37,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,768 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 19:45:37,769 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:37,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1231399233] [2024-09-12 19:45:37,769 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1231399233] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:37,769 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254818454] [2024-09-12 19:45:37,769 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:37,769 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:37,770 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:37,771 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 19:45:37,773 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 19:45:37,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:37,816 INFO L262 TraceCheckSpWp]: Trace formula consists of 114 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:37,818 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:37,902 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 19:45:37,902 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:37,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254818454] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:37,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:45:37,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [7] total 9 [2024-09-12 19:45:37,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172145795] [2024-09-12 19:45:37,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:37,903 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:37,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:37,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:37,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:45:37,904 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 19:45:37,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:37,956 INFO L93 Difference]: Finished difference Result 168 states and 174 transitions. [2024-09-12 19:45:37,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-09-12 19:45:37,956 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 19:45:37,957 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:37,958 INFO L225 Difference]: With dead ends: 168 [2024-09-12 19:45:37,958 INFO L226 Difference]: Without dead ends: 167 [2024-09-12 19:45:37,958 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 19:45:37,959 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 19:45:37,959 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 19:45:37,959 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167 states. [2024-09-12 19:45:37,971 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167 to 167. [2024-09-12 19:45:37,972 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 19:45:37,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 167 states to 167 states and 173 transitions. [2024-09-12 19:45:37,973 INFO L78 Accepts]: Start accepts. Automaton has 167 states and 173 transitions. Word has length 55 [2024-09-12 19:45:37,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:37,973 INFO L474 AbstractCegarLoop]: Abstraction has 167 states and 173 transitions. [2024-09-12 19:45:37,974 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 19:45:37,974 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:37,974 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states and 173 transitions. [2024-09-12 19:45:37,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-09-12 19:45:37,975 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:37,975 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 19:45:37,992 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 19:45:38,175 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 19:45:38,176 INFO L399 AbstractCegarLoop]: === Iteration 12 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:38,177 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:38,177 INFO L85 PathProgramCache]: Analyzing trace with hash -167986973, now seen corresponding path program 1 times [2024-09-12 19:45:38,177 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:38,177 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2133096261] [2024-09-12 19:45:38,177 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:38,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:38,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:38,288 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:38,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:38,293 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:38,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:38,296 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:38,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:38,299 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:38,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:38,305 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 19:45:38,305 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:38,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2133096261] [2024-09-12 19:45:38,305 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2133096261] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:38,305 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [742239921] [2024-09-12 19:45:38,306 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:38,306 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:38,306 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:38,308 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 19:45:38,309 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 19:45:38,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:38,352 INFO L262 TraceCheckSpWp]: Trace formula consists of 115 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:38,353 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:38,443 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 19:45:38,443 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:38,548 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 19:45:38,549 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [742239921] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:38,549 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:45:38,549 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5, 5] total 13 [2024-09-12 19:45:38,549 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562110674] [2024-09-12 19:45:38,549 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:38,550 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-09-12 19:45:38,550 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:38,550 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-09-12 19:45:38,550 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=53, Invalid=129, Unknown=0, NotChecked=0, Total=182 [2024-09-12 19:45:38,551 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 19:45:38,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:38,816 INFO L93 Difference]: Finished difference Result 448 states and 469 transitions. [2024-09-12 19:45:38,816 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-09-12 19:45:38,816 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 19:45:38,817 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:38,820 INFO L225 Difference]: With dead ends: 448 [2024-09-12 19:45:38,820 INFO L226 Difference]: Without dead ends: 396 [2024-09-12 19:45:38,822 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 19:45:38,823 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 19:45:38,824 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 19:45:38,824 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-09-12 19:45:38,844 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 300. [2024-09-12 19:45:38,845 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 19:45:38,847 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 300 states to 300 states and 411 transitions. [2024-09-12 19:45:38,848 INFO L78 Accepts]: Start accepts. Automaton has 300 states and 411 transitions. Word has length 56 [2024-09-12 19:45:38,848 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:38,848 INFO L474 AbstractCegarLoop]: Abstraction has 300 states and 411 transitions. [2024-09-12 19:45:38,849 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 19:45:38,849 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:38,849 INFO L276 IsEmpty]: Start isEmpty. Operand 300 states and 411 transitions. [2024-09-12 19:45:38,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2024-09-12 19:45:38,850 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:38,850 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 19:45:38,867 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-09-12 19:45:39,051 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 19:45:39,051 INFO L399 AbstractCegarLoop]: === Iteration 13 === Targeting mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:39,051 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:39,052 INFO L85 PathProgramCache]: Analyzing trace with hash 1773277765, now seen corresponding path program 1 times [2024-09-12 19:45:39,052 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:39,052 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [671657929] [2024-09-12 19:45:39,052 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:39,052 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,096 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:39,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,098 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:39,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,101 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:39,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,104 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:39,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,106 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 19:45:39,106 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:39,106 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [671657929] [2024-09-12 19:45:39,107 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [671657929] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:39,107 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [903820507] [2024-09-12 19:45:39,107 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:39,107 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:39,107 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:39,109 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 19:45:39,110 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 19:45:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,151 INFO L262 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:45:39,152 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:39,210 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 19:45:39,210 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:39,210 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [903820507] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:39,210 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:45:39,210 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-09-12 19:45:39,210 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765266738] [2024-09-12 19:45:39,210 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:39,210 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:39,211 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:39,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:39,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:39,211 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 19:45:39,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:39,306 INFO L93 Difference]: Finished difference Result 300 states and 411 transitions. [2024-09-12 19:45:39,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-09-12 19:45:39,307 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 19:45:39,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:39,308 INFO L225 Difference]: With dead ends: 300 [2024-09-12 19:45:39,309 INFO L226 Difference]: Without dead ends: 291 [2024-09-12 19:45:39,309 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 19:45:39,310 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 19:45:39,310 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 19:45:39,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-09-12 19:45:39,330 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-09-12 19:45:39,330 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 19:45:39,332 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 384 transitions. [2024-09-12 19:45:39,332 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 384 transitions. Word has length 58 [2024-09-12 19:45:39,332 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:39,333 INFO L474 AbstractCegarLoop]: Abstraction has 291 states and 384 transitions. [2024-09-12 19:45:39,333 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 19:45:39,333 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:39,333 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 384 transitions. [2024-09-12 19:45:39,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2024-09-12 19:45:39,334 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:39,334 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 19:45:39,350 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 19:45:39,534 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 19:45:39,535 INFO L399 AbstractCegarLoop]: === Iteration 14 === Targeting mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:39,535 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:39,535 INFO L85 PathProgramCache]: Analyzing trace with hash -862964080, now seen corresponding path program 1 times [2024-09-12 19:45:39,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:39,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [942972164] [2024-09-12 19:45:39,536 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:39,536 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:39,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,589 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:39,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,591 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,594 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:39,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,596 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:39,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,598 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 19:45:39,598 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:39,598 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [942972164] [2024-09-12 19:45:39,598 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [942972164] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:39,599 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1492132731] [2024-09-12 19:45:39,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:39,599 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:39,599 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:39,600 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 19:45:39,602 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 19:45:39,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:39,644 INFO L262 TraceCheckSpWp]: Trace formula consists of 120 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-09-12 19:45:39,645 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:39,703 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 19:45:39,703 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:39,779 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 19:45:39,780 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1492132731] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:39,780 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:45:39,780 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 3, 3] total 7 [2024-09-12 19:45:39,780 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1118704802] [2024-09-12 19:45:39,780 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:39,780 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:45:39,780 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:39,781 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:45:39,781 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:45:39,781 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 19:45:40,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:40,003 INFO L93 Difference]: Finished difference Result 328 states and 401 transitions. [2024-09-12 19:45:40,004 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:45:40,004 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 19:45:40,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:40,007 INFO L225 Difference]: With dead ends: 328 [2024-09-12 19:45:40,007 INFO L226 Difference]: Without dead ends: 319 [2024-09-12 19:45:40,008 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 19:45:40,008 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 19:45:40,009 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 19:45:40,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 319 states. [2024-09-12 19:45:40,030 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 319 to 282. [2024-09-12 19:45:40,031 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 19:45:40,033 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 282 states to 282 states and 357 transitions. [2024-09-12 19:45:40,033 INFO L78 Accepts]: Start accepts. Automaton has 282 states and 357 transitions. Word has length 59 [2024-09-12 19:45:40,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:40,033 INFO L474 AbstractCegarLoop]: Abstraction has 282 states and 357 transitions. [2024-09-12 19:45:40,034 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 19:45:40,034 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:40,034 INFO L276 IsEmpty]: Start isEmpty. Operand 282 states and 357 transitions. [2024-09-12 19:45:40,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2024-09-12 19:45:40,035 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:40,036 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 19:45:40,053 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-09-12 19:45:40,236 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 19:45:40,236 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 19:45:40,236 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:40,237 INFO L85 PathProgramCache]: Analyzing trace with hash -740058138, now seen corresponding path program 1 times [2024-09-12 19:45:40,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:40,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [97178203] [2024-09-12 19:45:40,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:40,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:40,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:40,387 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:40,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:40,389 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:40,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:40,393 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:40,394 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:40,397 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:40,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:40,401 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 19:45:40,401 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:40,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [97178203] [2024-09-12 19:45:40,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [97178203] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:40,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [515505025] [2024-09-12 19:45:40,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:40,402 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:40,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:40,403 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 19:45:40,404 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 19:45:40,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:40,445 INFO L262 TraceCheckSpWp]: Trace formula consists of 131 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-09-12 19:45:40,446 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:40,593 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 19:45:40,594 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:40,709 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 19:45:40,709 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [515505025] provided 1 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:40,709 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:45:40,710 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [8, 7] total 12 [2024-09-12 19:45:40,710 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138914138] [2024-09-12 19:45:40,710 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:40,710 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:40,710 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:40,711 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:40,711 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:45:40,711 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 19:45:41,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:41,634 INFO L93 Difference]: Finished difference Result 296 states and 370 transitions. [2024-09-12 19:45:41,635 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:41,635 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 19:45:41,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:41,637 INFO L225 Difference]: With dead ends: 296 [2024-09-12 19:45:41,637 INFO L226 Difference]: Without dead ends: 294 [2024-09-12 19:45:41,637 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 19:45:41,638 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, 0.9s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:41,638 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [34 Valid, 130 Invalid, 336 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 335 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-09-12 19:45:41,639 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2024-09-12 19:45:41,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 294. [2024-09-12 19:45:41,672 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 19:45:41,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 366 transitions. [2024-09-12 19:45:41,675 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 366 transitions. Word has length 65 [2024-09-12 19:45:41,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:41,675 INFO L474 AbstractCegarLoop]: Abstraction has 294 states and 366 transitions. [2024-09-12 19:45:41,675 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 19:45:41,676 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:41,676 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 366 transitions. [2024-09-12 19:45:41,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-09-12 19:45:41,676 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:41,677 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 19:45:41,694 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 19:45:41,877 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 19:45:41,877 INFO L399 AbstractCegarLoop]: === Iteration 16 === Targeting mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:41,878 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:41,878 INFO L85 PathProgramCache]: Analyzing trace with hash -878058857, now seen corresponding path program 1 times [2024-09-12 19:45:41,878 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:41,878 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1324766060] [2024-09-12 19:45:41,878 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:41,878 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:41,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:41,890 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1692885629] [2024-09-12 19:45:41,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:41,890 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:41,891 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:41,892 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 19:45:41,894 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 19:45:41,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:41,938 INFO L262 TraceCheckSpWp]: Trace formula consists of 137 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-09-12 19:45:41,940 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:42,008 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 19:45:42,008 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:42,147 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 19:45:42,147 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:42,147 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1324766060] [2024-09-12 19:45:42,147 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:42,148 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1692885629] [2024-09-12 19:45:42,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1692885629] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:42,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:45:42,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3] total 5 [2024-09-12 19:45:42,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620352364] [2024-09-12 19:45:42,149 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:42,150 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-09-12 19:45:42,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:42,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-09-12 19:45:42,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2024-09-12 19:45:42,150 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 19:45:42,390 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:42,390 INFO L93 Difference]: Finished difference Result 371 states and 394 transitions. [2024-09-12 19:45:42,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-09-12 19:45:42,391 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 19:45:42,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:42,393 INFO L225 Difference]: With dead ends: 371 [2024-09-12 19:45:42,393 INFO L226 Difference]: Without dead ends: 369 [2024-09-12 19:45:42,393 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 19:45:42,394 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 19:45:42,394 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 19:45:42,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 369 states. [2024-09-12 19:45:42,448 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 369 to 317. [2024-09-12 19:45:42,449 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 19:45:42,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 317 states to 317 states and 388 transitions. [2024-09-12 19:45:42,451 INFO L78 Accepts]: Start accepts. Automaton has 317 states and 388 transitions. Word has length 72 [2024-09-12 19:45:42,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:42,451 INFO L474 AbstractCegarLoop]: Abstraction has 317 states and 388 transitions. [2024-09-12 19:45:42,451 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 19:45:42,451 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:42,452 INFO L276 IsEmpty]: Start isEmpty. Operand 317 states and 388 transitions. [2024-09-12 19:45:42,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-09-12 19:45:42,452 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:42,452 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 19:45:42,469 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-09-12 19:45:42,656 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 19:45:42,657 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 19:45:42,657 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:42,657 INFO L85 PathProgramCache]: Analyzing trace with hash 1217295177, now seen corresponding path program 2 times [2024-09-12 19:45:42,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:42,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1790897035] [2024-09-12 19:45:42,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:42,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:42,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:42,670 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [376453813] [2024-09-12 19:45:42,670 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:45:42,670 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:42,670 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:42,672 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 19:45:42,673 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 19:45:42,721 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:45:42,721 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:45:42,722 INFO L262 TraceCheckSpWp]: Trace formula consists of 146 conjuncts, 23 conjuncts are in the unsatisfiable core [2024-09-12 19:45:42,725 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:42,998 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 19:45:42,998 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:43,257 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 19:45:43,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:43,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1790897035] [2024-09-12 19:45:43,257 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:43,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [376453813] [2024-09-12 19:45:43,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [376453813] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:43,258 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:45:43,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 17 [2024-09-12 19:45:43,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2048163364] [2024-09-12 19:45:43,258 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:43,259 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:45:43,259 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:43,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:45:43,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=46, Invalid=226, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:45:43,260 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 19:45:44,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:44,107 INFO L93 Difference]: Finished difference Result 347 states and 406 transitions. [2024-09-12 19:45:44,108 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-09-12 19:45:44,108 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 19:45:44,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:44,110 INFO L225 Difference]: With dead ends: 347 [2024-09-12 19:45:44,110 INFO L226 Difference]: Without dead ends: 287 [2024-09-12 19:45:44,111 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 155 GetRequests, 136 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2024-09-12 19:45:44,112 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, 0.7s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:44,112 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [142 Valid, 205 Invalid, 1141 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 1086 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-09-12 19:45:44,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-09-12 19:45:44,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 279. [2024-09-12 19:45:44,174 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 19:45:44,175 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 279 states to 279 states and 304 transitions. [2024-09-12 19:45:44,176 INFO L78 Accepts]: Start accepts. Automaton has 279 states and 304 transitions. Word has length 76 [2024-09-12 19:45:44,176 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:44,176 INFO L474 AbstractCegarLoop]: Abstraction has 279 states and 304 transitions. [2024-09-12 19:45:44,176 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 19:45:44,176 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:44,177 INFO L276 IsEmpty]: Start isEmpty. Operand 279 states and 304 transitions. [2024-09-12 19:45:44,177 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 99 [2024-09-12 19:45:44,177 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:44,177 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 19:45:44,194 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 19:45:44,378 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 19:45:44,378 INFO L399 AbstractCegarLoop]: === Iteration 18 === Targeting mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:44,378 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:44,378 INFO L85 PathProgramCache]: Analyzing trace with hash -884656205, now seen corresponding path program 1 times [2024-09-12 19:45:44,379 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:44,379 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1331889634] [2024-09-12 19:45:44,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:44,379 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:44,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,438 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:44,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,441 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:44,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,442 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:44,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,444 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:44,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,445 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:45:44,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,446 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:45:44,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,448 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:45:44,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,450 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 19:45:44,450 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:44,450 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1331889634] [2024-09-12 19:45:44,451 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1331889634] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:44,451 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:44,451 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:44,451 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13399910] [2024-09-12 19:45:44,451 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:44,451 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:44,451 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:44,452 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:44,452 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:45:44,452 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 19:45:44,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:44,588 INFO L93 Difference]: Finished difference Result 279 states and 304 transitions. [2024-09-12 19:45:44,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:44,589 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 19:45:44,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:44,591 INFO L225 Difference]: With dead ends: 279 [2024-09-12 19:45:44,591 INFO L226 Difference]: Without dead ends: 276 [2024-09-12 19:45:44,591 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 19:45:44,591 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 19:45:44,592 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 19:45:44,592 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-09-12 19:45:44,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 276. [2024-09-12 19:45:44,657 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 19:45:44,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 298 transitions. [2024-09-12 19:45:44,658 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 298 transitions. Word has length 98 [2024-09-12 19:45:44,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:44,659 INFO L474 AbstractCegarLoop]: Abstraction has 276 states and 298 transitions. [2024-09-12 19:45:44,659 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 19:45:44,659 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:44,659 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 298 transitions. [2024-09-12 19:45:44,660 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 100 [2024-09-12 19:45:44,660 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:44,660 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 19:45:44,660 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-09-12 19:45:44,660 INFO L399 AbstractCegarLoop]: === Iteration 19 === Targeting mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:44,661 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:44,661 INFO L85 PathProgramCache]: Analyzing trace with hash -1654538470, now seen corresponding path program 1 times [2024-09-12 19:45:44,661 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:44,661 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1516840615] [2024-09-12 19:45:44,661 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:44,661 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:44,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,697 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:44,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,699 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,700 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:44,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,701 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:44,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,702 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:45:44,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,704 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:45:44,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,705 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:45:44,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:44,707 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 19:45:44,707 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:44,708 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1516840615] [2024-09-12 19:45:44,708 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1516840615] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:44,708 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-09-12 19:45:44,708 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-09-12 19:45:44,708 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1808681709] [2024-09-12 19:45:44,708 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:44,709 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-09-12 19:45:44,709 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:44,709 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-09-12 19:45:44,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-09-12 19:45:44,709 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 19:45:44,862 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:44,862 INFO L93 Difference]: Finished difference Result 292 states and 317 transitions. [2024-09-12 19:45:44,863 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-09-12 19:45:44,863 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 19:45:44,863 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:44,865 INFO L225 Difference]: With dead ends: 292 [2024-09-12 19:45:44,865 INFO L226 Difference]: Without dead ends: 287 [2024-09-12 19:45:44,865 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 19:45:44,866 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 19:45:44,866 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 19:45:44,867 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2024-09-12 19:45:44,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 271. [2024-09-12 19:45:44,934 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 19:45:44,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 290 transitions. [2024-09-12 19:45:44,936 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 290 transitions. Word has length 99 [2024-09-12 19:45:44,936 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:44,937 INFO L474 AbstractCegarLoop]: Abstraction has 271 states and 290 transitions. [2024-09-12 19:45:44,937 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 19:45:44,937 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:44,937 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 290 transitions. [2024-09-12 19:45:44,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2024-09-12 19:45:44,938 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:44,938 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 19:45:44,938 WARN L456 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-09-12 19:45:44,938 INFO L399 AbstractCegarLoop]: === Iteration 20 === Targeting mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:44,939 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:44,939 INFO L85 PathProgramCache]: Analyzing trace with hash -873566596, now seen corresponding path program 1 times [2024-09-12 19:45:44,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:44,939 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [636579231] [2024-09-12 19:45:44,939 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:44,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:44,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:45,036 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:45,038 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:45,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:45,041 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:45,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:45,044 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:45,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:45,047 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:45:45,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:45,050 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:45:45,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:45,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:45:45,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:45,056 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 19:45:45,057 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:45,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [636579231] [2024-09-12 19:45:45,057 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [636579231] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:45,057 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1863297583] [2024-09-12 19:45:45,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:45,057 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:45,057 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:45,059 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 19:45:45,060 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 19:45:45,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:45,109 INFO L262 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-09-12 19:45:45,110 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:45,349 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 19:45:45,350 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:45,508 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 19:45:45,508 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1863297583] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:45,509 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:45:45,509 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 14 [2024-09-12 19:45:45,509 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1437070517] [2024-09-12 19:45:45,509 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:45,509 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2024-09-12 19:45:45,509 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:45,510 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2024-09-12 19:45:45,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=130, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:45:45,510 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 19:45:45,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:45,924 INFO L93 Difference]: Finished difference Result 317 states and 351 transitions. [2024-09-12 19:45:45,924 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-09-12 19:45:45,924 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 19:45:45,925 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:45,926 INFO L225 Difference]: With dead ends: 317 [2024-09-12 19:45:45,927 INFO L226 Difference]: Without dead ends: 316 [2024-09-12 19:45:45,927 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 19:45:45,928 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, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:45,928 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [94 Valid, 242 Invalid, 299 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 267 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:45:45,929 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316 states. [2024-09-12 19:45:46,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316 to 292. [2024-09-12 19:45:46,022 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 19:45:46,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292 states to 292 states and 316 transitions. [2024-09-12 19:45:46,024 INFO L78 Accepts]: Start accepts. Automaton has 292 states and 316 transitions. Word has length 101 [2024-09-12 19:45:46,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:46,024 INFO L474 AbstractCegarLoop]: Abstraction has 292 states and 316 transitions. [2024-09-12 19:45:46,025 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 19:45:46,025 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:46,025 INFO L276 IsEmpty]: Start isEmpty. Operand 292 states and 316 transitions. [2024-09-12 19:45:46,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 128 [2024-09-12 19:45:46,026 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:46,026 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 19:45:46,042 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-09-12 19:45:46,230 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 19:45:46,231 INFO L399 AbstractCegarLoop]: === Iteration 21 === Targeting mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:46,231 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:46,231 INFO L85 PathProgramCache]: Analyzing trace with hash 808020485, now seen corresponding path program 1 times [2024-09-12 19:45:46,231 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:46,231 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [967391475] [2024-09-12 19:45:46,231 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:46,231 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:46,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-09-12 19:45:46,251 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1859501337] [2024-09-12 19:45:46,252 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:46,252 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:46,252 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:46,254 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 19:45:46,255 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 19:45:46,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:46,314 INFO L262 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:46,316 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:46,418 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 19:45:46,418 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:46,599 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 19:45:46,600 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:46,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [967391475] [2024-09-12 19:45:46,600 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-09-12 19:45:46,600 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1859501337] [2024-09-12 19:45:46,600 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1859501337] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:46,600 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2024-09-12 19:45:46,600 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 7 [2024-09-12 19:45:46,601 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833179038] [2024-09-12 19:45:46,601 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:46,601 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:45:46,601 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:46,602 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:45:46,602 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-09-12 19:45:46,602 INFO L87 Difference]: Start difference. First operand 292 states and 316 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 19:45:46,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:46,986 INFO L93 Difference]: Finished difference Result 427 states and 474 transitions. [2024-09-12 19:45:46,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-09-12 19:45:46,987 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 19:45:46,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:46,990 INFO L225 Difference]: With dead ends: 427 [2024-09-12 19:45:46,990 INFO L226 Difference]: Without dead ends: 425 [2024-09-12 19:45:46,990 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 255 GetRequests, 247 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-09-12 19:45:46,991 INFO L434 NwaCegarLoop]: 107 mSDtfsCounter, 245 mSDsluCounter, 361 mSDsCounter, 0 mSdLazyCounter, 254 mSolverCounterSat, 22 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 251 SdHoareTripleChecker+Valid, 468 SdHoareTripleChecker+Invalid, 276 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 22 IncrementalHoareTripleChecker+Valid, 254 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:46,991 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [251 Valid, 468 Invalid, 276 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [22 Valid, 254 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-09-12 19:45:46,992 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 425 states. [2024-09-12 19:45:47,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 425 to 360. [2024-09-12 19:45:47,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 305 states have (on average 1.1147540983606556) internal successors, (340), 319 states have internal predecessors, (340), 31 states have call successors, (31), 13 states have call predecessors, (31), 12 states have return successors, (30), 27 states have call predecessors, (30), 30 states have call successors, (30) [2024-09-12 19:45:47,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 401 transitions. [2024-09-12 19:45:47,072 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 401 transitions. Word has length 127 [2024-09-12 19:45:47,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:47,073 INFO L474 AbstractCegarLoop]: Abstraction has 360 states and 401 transitions. [2024-09-12 19:45:47,073 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 19:45:47,073 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:47,073 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 401 transitions. [2024-09-12 19:45:47,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2024-09-12 19:45:47,074 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:47,074 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, 1, 1] [2024-09-12 19:45:47,091 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2024-09-12 19:45:47,278 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 19:45:47,278 INFO L399 AbstractCegarLoop]: === Iteration 22 === Targeting mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:47,279 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:47,279 INFO L85 PathProgramCache]: Analyzing trace with hash -881389881, now seen corresponding path program 1 times [2024-09-12 19:45:47,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:47,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658227469] [2024-09-12 19:45:47,279 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:47,279 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:47,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,408 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:47,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,410 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:47,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,413 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:47,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,416 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:47,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,418 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:45:47,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,421 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:45:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,423 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:45:47,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,425 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:45:47,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,429 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:45:47,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,439 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 19:45:47,439 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:47,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658227469] [2024-09-12 19:45:47,440 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658227469] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:47,440 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [921780303] [2024-09-12 19:45:47,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:47,440 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:47,440 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:47,442 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 19:45:47,443 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 19:45:47,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:47,498 INFO L262 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 7 conjuncts are in the unsatisfiable core [2024-09-12 19:45:47,500 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:47,741 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 19:45:47,741 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:47,928 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 19:45:47,928 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [921780303] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:47,928 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:45:47,928 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 6, 6] total 16 [2024-09-12 19:45:47,928 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [251487617] [2024-09-12 19:45:47,928 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:47,929 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2024-09-12 19:45:47,929 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:47,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2024-09-12 19:45:47,930 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2024-09-12 19:45:47,930 INFO L87 Difference]: Start difference. First operand 360 states and 401 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 19:45:48,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:48,387 INFO L93 Difference]: Finished difference Result 405 states and 451 transitions. [2024-09-12 19:45:48,387 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-09-12 19:45:48,387 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 19:45:48,388 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:48,390 INFO L225 Difference]: With dead ends: 405 [2024-09-12 19:45:48,390 INFO L226 Difference]: Without dead ends: 401 [2024-09-12 19:45:48,394 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 287 GetRequests, 266 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=192, Invalid=314, Unknown=0, NotChecked=0, Total=506 [2024-09-12 19:45:48,394 INFO L434 NwaCegarLoop]: 47 mSDtfsCounter, 175 mSDsluCounter, 283 mSDsCounter, 0 mSdLazyCounter, 304 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 330 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 304 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:48,394 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 330 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 304 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-09-12 19:45:48,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 401 states. [2024-09-12 19:45:48,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 401 to 374. [2024-09-12 19:45:48,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 374 states, 319 states have (on average 1.0877742946708464) internal successors, (347), 331 states have internal predecessors, (347), 33 states have call successors, (33), 13 states have call predecessors, (33), 12 states have return successors, (32), 29 states have call predecessors, (32), 32 states have call successors, (32) [2024-09-12 19:45:48,501 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 412 transitions. [2024-09-12 19:45:48,502 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 412 transitions. Word has length 129 [2024-09-12 19:45:48,503 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:48,503 INFO L474 AbstractCegarLoop]: Abstraction has 374 states and 412 transitions. [2024-09-12 19:45:48,503 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 19:45:48,503 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:48,503 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 412 transitions. [2024-09-12 19:45:48,504 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 132 [2024-09-12 19:45:48,504 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:48,504 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, 1, 1, 1, 1] [2024-09-12 19:45:48,521 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 19:45:48,705 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 19:45:48,705 INFO L399 AbstractCegarLoop]: === Iteration 23 === Targeting mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:48,705 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:48,705 INFO L85 PathProgramCache]: Analyzing trace with hash -907113591, now seen corresponding path program 1 times [2024-09-12 19:45:48,705 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:48,706 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729381074] [2024-09-12 19:45:48,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:48,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:48,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,859 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,861 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:48,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,863 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:48,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,866 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:48,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,871 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:45:48,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,873 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:45:48,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,875 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:45:48,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,878 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:45:48,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,880 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:45:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,884 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 19:45:48,884 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:48,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729381074] [2024-09-12 19:45:48,885 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729381074] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:48,885 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [826821490] [2024-09-12 19:45:48,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:48,885 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:48,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:48,887 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 19:45:48,888 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 19:45:48,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:48,944 INFO L262 TraceCheckSpWp]: Trace formula consists of 221 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-09-12 19:45:48,945 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:49,272 INFO L134 CoverageAnalysis]: Checked inductivity of 156 backedges. 44 proven. 0 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2024-09-12 19:45:49,273 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-09-12 19:45:49,273 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [826821490] provided 1 perfect and 0 imperfect interpolant sequences [2024-09-12 19:45:49,273 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-09-12 19:45:49,273 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [8] total 14 [2024-09-12 19:45:49,273 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1409326320] [2024-09-12 19:45:49,274 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-09-12 19:45:49,274 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-09-12 19:45:49,274 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:49,275 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-09-12 19:45:49,275 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=154, Unknown=0, NotChecked=0, Total=210 [2024-09-12 19:45:49,275 INFO L87 Difference]: Start difference. First operand 374 states and 412 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 19:45:49,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:49,540 INFO L93 Difference]: Finished difference Result 390 states and 430 transitions. [2024-09-12 19:45:49,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-09-12 19:45:49,541 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 19:45:49,543 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:49,545 INFO L225 Difference]: With dead ends: 390 [2024-09-12 19:45:49,546 INFO L226 Difference]: Without dead ends: 324 [2024-09-12 19:45:49,546 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 19:45:49,547 INFO L434 NwaCegarLoop]: 105 mSDtfsCounter, 77 mSDsluCounter, 149 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 254 SdHoareTripleChecker+Invalid, 179 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:49,547 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 254 Invalid, 179 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:49,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 324 states. [2024-09-12 19:45:49,656 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 324 to 324. [2024-09-12 19:45:49,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 324 states, 279 states have (on average 1.0573476702508962) internal successors, (295), 286 states have internal predecessors, (295), 27 states have call successors, (27), 11 states have call predecessors, (27), 10 states have return successors, (26), 26 states have call predecessors, (26), 26 states have call successors, (26) [2024-09-12 19:45:49,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 324 states to 324 states and 348 transitions. [2024-09-12 19:45:49,659 INFO L78 Accepts]: Start accepts. Automaton has 324 states and 348 transitions. Word has length 131 [2024-09-12 19:45:49,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:49,659 INFO L474 AbstractCegarLoop]: Abstraction has 324 states and 348 transitions. [2024-09-12 19:45:49,660 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 19:45:49,660 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:49,660 INFO L276 IsEmpty]: Start isEmpty. Operand 324 states and 348 transitions. [2024-09-12 19:45:49,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 201 [2024-09-12 19:45:49,664 INFO L208 NwaCegarLoop]: Found error trace [2024-09-12 19:45:49,664 INFO L216 NwaCegarLoop]: trace histogram [12, 12, 12, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:49,683 INFO L552 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-09-12 19:45:49,867 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 19:45:49,868 INFO L399 AbstractCegarLoop]: === Iteration 24 === Targeting mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (and 50 more)] === [2024-09-12 19:45:49,868 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:49,868 INFO L85 PathProgramCache]: Analyzing trace with hash -2091529596, now seen corresponding path program 2 times [2024-09-12 19:45:49,868 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-09-12 19:45:49,868 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521991322] [2024-09-12 19:45:49,868 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-09-12 19:45:49,868 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-09-12 19:45:49,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,054 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2024-09-12 19:45:50,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,057 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-09-12 19:45:50,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,060 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-09-12 19:45:50,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,062 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-09-12 19:45:50,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,065 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2024-09-12 19:45:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,067 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 72 [2024-09-12 19:45:50,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,069 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-09-12 19:45:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,071 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2024-09-12 19:45:50,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,073 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2024-09-12 19:45:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,075 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2024-09-12 19:45:50,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,078 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2024-09-12 19:45:50,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,080 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-09-12 19:45:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,081 INFO L381 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2024-09-12 19:45:50,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-09-12 19:45:50,084 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 184 proven. 9 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2024-09-12 19:45:50,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-09-12 19:45:50,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521991322] [2024-09-12 19:45:50,085 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1521991322] provided 0 perfect and 1 imperfect interpolant sequences [2024-09-12 19:45:50,085 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1916254904] [2024-09-12 19:45:50,085 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-09-12 19:45:50,085 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-09-12 19:45:50,085 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/certificate-witnesses-artifact/automizer/z3 [2024-09-12 19:45:50,087 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 19:45:50,089 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 19:45:50,166 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-09-12 19:45:50,166 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2024-09-12 19:45:50,167 INFO L262 TraceCheckSpWp]: Trace formula consists of 322 conjuncts, 9 conjuncts are in the unsatisfiable core [2024-09-12 19:45:50,171 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2024-09-12 19:45:50,291 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 371 proven. 2 refuted. 0 times theorem prover too weak. 119 trivial. 0 not checked. [2024-09-12 19:45:50,291 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2024-09-12 19:45:50,453 INFO L134 CoverageAnalysis]: Checked inductivity of 492 backedges. 191 proven. 2 refuted. 0 times theorem prover too weak. 299 trivial. 0 not checked. [2024-09-12 19:45:50,453 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1916254904] provided 0 perfect and 2 imperfect interpolant sequences [2024-09-12 19:45:50,453 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-09-12 19:45:50,453 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 12 [2024-09-12 19:45:50,453 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1326932594] [2024-09-12 19:45:50,453 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-09-12 19:45:50,454 INFO L551 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-09-12 19:45:50,454 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-09-12 19:45:50,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-09-12 19:45:50,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=99, Unknown=0, NotChecked=0, Total=132 [2024-09-12 19:45:50,455 INFO L87 Difference]: Start difference. First operand 324 states and 348 transitions. Second operand has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 11 states have internal predecessors, (124), 6 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2024-09-12 19:45:50,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-09-12 19:45:50,611 INFO L93 Difference]: Finished difference Result 324 states and 348 transitions. [2024-09-12 19:45:50,612 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-09-12 19:45:50,612 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 11 states have internal predecessors, (124), 6 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) Word has length 200 [2024-09-12 19:45:50,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-09-12 19:45:50,613 INFO L225 Difference]: With dead ends: 324 [2024-09-12 19:45:50,613 INFO L226 Difference]: Without dead ends: 0 [2024-09-12 19:45:50,614 INFO L433 NwaCegarLoop]: 0 DeclaredPredicates, 441 GetRequests, 418 SyntacticMatches, 6 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 84 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=82, Invalid=260, Unknown=0, NotChecked=0, Total=342 [2024-09-12 19:45:50,614 INFO L434 NwaCegarLoop]: 68 mSDtfsCounter, 15 mSDsluCounter, 345 mSDsCounter, 0 mSdLazyCounter, 164 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 413 SdHoareTripleChecker+Invalid, 168 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 164 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-09-12 19:45:50,615 INFO L435 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 413 Invalid, 168 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 164 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-09-12 19:45:50,615 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-09-12 19:45:50,616 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-09-12 19:45:50,616 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 19:45:50,616 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-09-12 19:45:50,616 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 200 [2024-09-12 19:45:50,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-09-12 19:45:50,617 INFO L474 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-09-12 19:45:50,617 INFO L475 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 10.333333333333334) internal successors, (124), 11 states have internal predecessors, (124), 6 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 5 states have call predecessors, (20), 4 states have call successors, (20) [2024-09-12 19:45:50,617 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2024-09-12 19:45:50,617 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-09-12 19:45:50,617 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-09-12 19:45:50,619 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW (52 of 53 remaining) [2024-09-12 19:45:50,620 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW (51 of 53 remaining) [2024-09-12 19:45:50,620 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW (50 of 53 remaining) [2024-09-12 19:45:50,620 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW (49 of 53 remaining) [2024-09-12 19:45:50,620 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW (48 of 53 remaining) [2024-09-12 19:45:50,620 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW (47 of 53 remaining) [2024-09-12 19:45:50,621 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW (46 of 53 remaining) [2024-09-12 19:45:50,621 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW (45 of 53 remaining) [2024-09-12 19:45:50,621 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr8ASSERT_VIOLATIONINTEGER_OVERFLOW (44 of 53 remaining) [2024-09-12 19:45:50,621 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr9ASSERT_VIOLATIONINTEGER_OVERFLOW (43 of 53 remaining) [2024-09-12 19:45:50,621 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr10ASSERT_VIOLATIONINTEGER_OVERFLOW (42 of 53 remaining) [2024-09-12 19:45:50,622 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr11ASSERT_VIOLATIONINTEGER_OVERFLOW (41 of 53 remaining) [2024-09-12 19:45:50,622 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr12ASSERT_VIOLATIONINTEGER_OVERFLOW (40 of 53 remaining) [2024-09-12 19:45:50,622 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr13ASSERT_VIOLATIONINTEGER_OVERFLOW (39 of 53 remaining) [2024-09-12 19:45:50,622 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr14ASSERT_VIOLATIONINTEGER_OVERFLOW (38 of 53 remaining) [2024-09-12 19:45:50,623 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr15ASSERT_VIOLATIONINTEGER_OVERFLOW (37 of 53 remaining) [2024-09-12 19:45:50,623 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr16ASSERT_VIOLATIONINTEGER_OVERFLOW (36 of 53 remaining) [2024-09-12 19:45:50,623 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr17ASSERT_VIOLATIONINTEGER_OVERFLOW (35 of 53 remaining) [2024-09-12 19:45:50,623 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr18ASSERT_VIOLATIONINTEGER_OVERFLOW (34 of 53 remaining) [2024-09-12 19:45:50,623 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr19ASSERT_VIOLATIONINTEGER_OVERFLOW (33 of 53 remaining) [2024-09-12 19:45:50,623 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr20ASSERT_VIOLATIONINTEGER_OVERFLOW (32 of 53 remaining) [2024-09-12 19:45:50,623 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr21ASSERT_VIOLATIONINTEGER_OVERFLOW (31 of 53 remaining) [2024-09-12 19:45:50,623 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr22ASSERT_VIOLATIONINTEGER_OVERFLOW (30 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr23ASSERT_VIOLATIONINTEGER_OVERFLOW (29 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr24ASSERT_VIOLATIONINTEGER_OVERFLOW (28 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr25ASSERT_VIOLATIONINTEGER_OVERFLOW (27 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr26ASSERT_VIOLATIONINTEGER_OVERFLOW (26 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr27ASSERT_VIOLATIONINTEGER_OVERFLOW (25 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr28ASSERT_VIOLATIONINTEGER_OVERFLOW (24 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr29ASSERT_VIOLATIONINTEGER_OVERFLOW (23 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr30ASSERT_VIOLATIONINTEGER_OVERFLOW (22 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr31ASSERT_VIOLATIONINTEGER_OVERFLOW (21 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr32ASSERT_VIOLATIONINTEGER_OVERFLOW (20 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr33ASSERT_VIOLATIONINTEGER_OVERFLOW (19 of 53 remaining) [2024-09-12 19:45:50,624 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr34ASSERT_VIOLATIONINTEGER_OVERFLOW (18 of 53 remaining) [2024-09-12 19:45:50,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr35ASSERT_VIOLATIONINTEGER_OVERFLOW (17 of 53 remaining) [2024-09-12 19:45:50,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr36ASSERT_VIOLATIONINTEGER_OVERFLOW (16 of 53 remaining) [2024-09-12 19:45:50,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr37ASSERT_VIOLATIONINTEGER_OVERFLOW (15 of 53 remaining) [2024-09-12 19:45:50,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr38ASSERT_VIOLATIONINTEGER_OVERFLOW (14 of 53 remaining) [2024-09-12 19:45:50,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr39ASSERT_VIOLATIONINTEGER_OVERFLOW (13 of 53 remaining) [2024-09-12 19:45:50,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr40ASSERT_VIOLATIONINTEGER_OVERFLOW (12 of 53 remaining) [2024-09-12 19:45:50,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr41ASSERT_VIOLATIONINTEGER_OVERFLOW (11 of 53 remaining) [2024-09-12 19:45:50,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr42ASSERT_VIOLATIONINTEGER_OVERFLOW (10 of 53 remaining) [2024-09-12 19:45:50,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr43ASSERT_VIOLATIONINTEGER_OVERFLOW (9 of 53 remaining) [2024-09-12 19:45:50,625 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr44ASSERT_VIOLATIONINTEGER_OVERFLOW (8 of 53 remaining) [2024-09-12 19:45:50,626 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr45ASSERT_VIOLATIONINTEGER_OVERFLOW (7 of 53 remaining) [2024-09-12 19:45:50,626 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr46ASSERT_VIOLATIONINTEGER_OVERFLOW (6 of 53 remaining) [2024-09-12 19:45:50,626 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr47ASSERT_VIOLATIONINTEGER_OVERFLOW (5 of 53 remaining) [2024-09-12 19:45:50,626 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr48ASSERT_VIOLATIONINTEGER_OVERFLOW (4 of 53 remaining) [2024-09-12 19:45:50,626 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr49ASSERT_VIOLATIONINTEGER_OVERFLOW (3 of 53 remaining) [2024-09-12 19:45:50,626 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr50ASSERT_VIOLATIONINTEGER_OVERFLOW (2 of 53 remaining) [2024-09-12 19:45:50,626 INFO L785 garLoopResultBuilder]: Registering result SAFE for location mainErr51ASSERT_VIOLATIONINTEGER_OVERFLOW (1 of 53 remaining) [2024-09-12 19:45:50,626 INFO L785 garLoopResultBuilder]: Registering result SAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 53 remaining) [2024-09-12 19:45:50,643 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 19:45:50,827 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 19:45:50,830 INFO L408 BasicCegarLoop]: Path program histogram: [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-09-12 19:45:50,831 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-09-12 19:45:59,718 INFO L165 ceAbstractionStarter]: Computing trace abstraction results [2024-09-12 19:45:59,739 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.09 07:45:59 BoogieIcfgContainer [2024-09-12 19:45:59,740 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-09-12 19:45:59,740 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-09-12 19:45:59,741 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-09-12 19:45:59,741 INFO L274 PluginConnector]: Witness Printer initialized [2024-09-12 19:45:59,741 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.09 07:45:33" (3/4) ... [2024-09-12 19:45:59,743 INFO L139 WitnessPrinter]: Generating witness for correct program [2024-09-12 19:45:59,746 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2024-09-12 19:45:59,746 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2024-09-12 19:45:59,746 INFO L361 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2024-09-12 19:45:59,752 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2024-09-12 19:45:59,752 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2024-09-12 19:45:59,753 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-09-12 19:45:59,753 INFO L896 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-09-12 19:45:59,774 WARN L216 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(counter) == 0) && (((((((2 <= counter) && (5 == t)) && (counter <= 2147483645)) && (a == 2)) && (s == 9)) || ((((a == 1) && (s == 4)) && (counter == 1)) && (t == 3))) || ((((a == 0) && (t == 1)) && (s == 1)) && (counter == 0)))) [2024-09-12 19:45:59,853 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.graphml [2024-09-12 19:45:59,856 INFO L149 WitnessManager]: Wrote witness to /storage/repos/certificate-witnesses-artifact/automizer/witness.yml [2024-09-12 19:45:59,856 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-09-12 19:45:59,856 INFO L158 Benchmark]: Toolchain (without parser) took 27409.78ms. Allocated memory was 67.1MB in the beginning and 436.2MB in the end (delta: 369.1MB). Free memory was 38.7MB in the beginning and 307.5MB in the end (delta: -268.8MB). Peak memory consumption was 101.5MB. Max. memory is 16.1GB. [2024-09-12 19:45:59,857 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 50.3MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:45:59,857 INFO L158 Benchmark]: CACSL2BoogieTranslator took 214.58ms. Allocated memory is still 67.1MB. Free memory was 38.5MB in the beginning and 46.2MB in the end (delta: -7.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. [2024-09-12 19:45:59,858 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.99ms. Allocated memory is still 67.1MB. Free memory was 46.2MB in the beginning and 45.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2024-09-12 19:45:59,858 INFO L158 Benchmark]: Boogie Preprocessor took 49.47ms. Allocated memory is still 67.1MB. Free memory was 45.1MB in the beginning and 43.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2024-09-12 19:45:59,858 INFO L158 Benchmark]: RCFGBuilder took 574.07ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 42.6MB in the end (delta: 766.6kB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. [2024-09-12 19:45:59,859 INFO L158 Benchmark]: TraceAbstraction took 26422.67ms. Allocated memory was 67.1MB in the beginning and 436.2MB in the end (delta: 369.1MB). Free memory was 41.9MB in the beginning and 313.8MB in the end (delta: -271.9MB). Peak memory consumption was 260.7MB. Max. memory is 16.1GB. [2024-09-12 19:45:59,859 INFO L158 Benchmark]: Witness Printer took 115.57ms. Allocated memory is still 436.2MB. Free memory was 313.8MB in the beginning and 307.5MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2024-09-12 19:45:59,861 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 50.3MB. Free memory is still 32.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 214.58ms. Allocated memory is still 67.1MB. Free memory was 38.5MB in the beginning and 46.2MB in the end (delta: -7.6MB). Peak memory consumption was 15.7MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 25.99ms. Allocated memory is still 67.1MB. Free memory was 46.2MB in the beginning and 45.1MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 49.47ms. Allocated memory is still 67.1MB. Free memory was 45.1MB in the beginning and 43.3MB in the end (delta: 1.8MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 574.07ms. Allocated memory is still 67.1MB. Free memory was 43.3MB in the beginning and 42.6MB in the end (delta: 766.6kB). Peak memory consumption was 20.1MB. Max. memory is 16.1GB. * TraceAbstraction took 26422.67ms. Allocated memory was 67.1MB in the beginning and 436.2MB in the end (delta: 369.1MB). Free memory was 41.9MB in the beginning and 313.8MB in the end (delta: -271.9MB). Peak memory consumption was 260.7MB. Max. memory is 16.1GB. * Witness Printer took 115.57ms. Allocated memory is still 436.2MB. Free memory was 313.8MB in the beginning and 307.5MB in the end (delta: 6.3MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 30]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 31]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 32]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 33]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 39]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 40]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 41]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 44]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 45]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 46]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 14]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 128 locations, 53 error locations. Started 1 CEGAR loops. OverallTime: 17.5s, OverallIterations: 24, TraceHistogramMax: 12, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 6.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2305 SdHoareTripleChecker+Valid, 4.9s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2224 mSDsluCounter, 7608 SdHoareTripleChecker+Invalid, 4.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 5432 mSDsCounter, 423 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 4985 IncrementalHoareTripleChecker+Invalid, 5408 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 423 mSolverCounterUnsat, 2176 mSDtfsCounter, 4985 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2389 GetRequests, 2180 SyntacticMatches, 8 SemanticMatches, 201 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 483 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=374occurred in iteration=22, InterpolantAutomatonStates: 186, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 24 MinimizatonAttempts, 383 StatesRemovedByMinimization, 15 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 5.6s InterpolantComputationTime, 2821 NumberOfCodeBlocks, 2821 NumberOfCodeBlocksAsserted, 40 NumberOfCheckSat, 3316 ConstructedInterpolants, 0 QuantifiedInterpolants, 12746 SizeOfPredicates, 20 NumberOfNonLiveVariables, 2214 ConjunctsInSsa, 110 ConjunctsInUnsatCore, 42 InterpolantComputations, 16 PerfectInterpolantSequences, 2991/3501 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 53 specifications checked. All of them hold - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: ((\old(counter) == 0) && (((((((2 <= counter) && (5 == t)) && (counter <= 2147483645)) && (a == 2)) && (s == 9)) || ((((a == 1) && (s == 4)) && (counter == 1)) && (t == 3))) || ((((a == 0) && (t == 1)) && (s == 1)) && (counter == 0)))) - ProcedureContractResult [Line: 21]: Procedure Contract for main Derived contract for procedure main. Requires: (counter == 0) Ensures: (\old(counter) == 0) - ProcedureContractResult [Line: 11]: Procedure Contract for __VERIFIER_assert Derived contract for procedure __VERIFIER_assert. Requires: (\old(cond) != 0) Ensures: (\old(cond) != 0) RESULT: Ultimate proved your program to be correct! [2024-09-12 19:45:59,885 INFO L540 MonitoredProcess]: [MP /storage/repos/certificate-witnesses-artifact/automizer/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE